JPH0636224B2 - Change dispensing test device for vending machines - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a change dispensing test device for a vending machine capable of performing a change dispensing test operation.

(B) Prior art Generally, in a vending machine controlled by a microcomputer, even if an abnormality occurs in the operation of the vending machine, since the input and output are concentrated on the central control board mounted with the microcomputer. It becomes difficult to determine which of the terminals such as the central control board or the switch, the drive section, the display, etc., or the signal system is defective. Moreover, if the multiplex system is frequently used for the signal system for the purpose of reducing wiring, the central control board and each terminal rarely exchange signals with each other, which makes the failure analysis more complicated. When the change is not made despite the sale, the market service cannot easily determine which of the money input detection unit, the central control unit board, and the sales control unit is defective. Market service people tend to replace a complicated central control board with a defective one, even if it is a good product, by recognizing that the central control board is highly integrated and defective. If it is low, the probability that the next abnormality will occur is small, so even if the failure is not actually corrected, it will give the illusion that the replacement of the central control board was effective, making the situation even more complicated. .

Conventionally, as a method for detecting an abnormality when an abnormality occurs in the operation of such a vending machine, there is a technique disclosed in Japanese Utility Model Laid-Open No. 54-48697. In this system, an automatic vending machine is put into a free vent state by operating a predetermined test sale switch, and a desired product can be sent out as a test by operating a product selection switch.

(C) Problems to be Solved by the Invention However, according to the above-mentioned conventional technique, only the phenomenon of abnormal product delivery can be confirmed, and as described above, no change is issued despite the fact that money is put in and sold. If
Market service cannot easily determine which of the money insertion detection unit, the central control unit substrate, and the sales control unit is defective.

Therefore, the present invention provides a change dispensing test device for a vending machine, which can reliably distinguish whether or not the cause is a change dispensing drive device and a denomination switching drive device when there is an abnormality in coin dispensing. Is.

(D) Means for Solving the Problems In order to solve the above problems, the present invention provides a change dispensing drive device (2) that freely dispenses each denomination coin stored.
In a vending machine equipped with A), (2B) and a denomination switching drive (S), a central control unit (1) that controls the overall operation of the vending machine and a coin of the vending machine. A coin mechanical control unit (3) for controlling a terminal portion related to a processing function, and a test switch (4) connected to the coin mechanical control unit (3) are provided, and the central control unit (1 indicates a change payout). The coin mechanism control unit (3) includes means for outputting change payment data to the coin mechanism control unit (3), and the coin mechanism control unit (3) inputs change change payment data based on the change change payment data (2A), (2B) and Means for driving the denomination switching drive (S) and the change dispensing drive (2) in response to the operation of the test switch (4).
A), (2B) and a denomination switching drive device (S) are driven, and test control means for paying out coins of all denominations one by one are included.

(E) Action The coin mechanical control unit (3) is usually controlled by the central control unit (1) to drive the change dispensing drive devices (2A) and (2B) and the denomination switching drive device (S), but the test switch (4) ) To drive the change dispensing drive devices (2A) and (2B) and the denomination switching drive device (S) in a predetermined test pattern, so that only the terminal part of the change dispense is operated in the vending machine during the test. become.

(F) Embodiment FIG. 1 shows a control circuit of a coin mechanical control unit (3) according to the present invention. In this example, a microcomputer (6) is used based on change change data transferred from the central control unit (1).
The change-out control is performed by. And (2
Each of A), (2B) and (S) has a control relationship as shown in FIG. 2 and is composed of a motor or the like for freely paying out coins of denominations of 10 yen, 50 yen, 100 yen and 500 yen. An electromagnetic solenoid, which is a denomination switching drive device that controls switching of a change dispensing drive device and a change dispensing plate according to a coin to be dispensed, and the change dispensing drive devices (2A), (2B) and the electromagnetic solenoid (S) correspond to each other. OK gates (7A), (7B),
(7C) and the drivers (8A), (8B), (8C) through the ports P1 of the microcomputer (6) 1 to 3
Connected to terminals up to. A pulse switch (9) is provided at the port P2 of the microcomputer (6) so as to be turned on and off in conjunction with the change-out driving devices (2A) and (2B) via a NAND gate (15).
A) and (9B) are connected. Also, port P3 is O
Change dispensing drive device (2A) through R gate (10),
(2B) and the electromagnetic solenoid (S), respectively. The output terminal Q of the flip-flop circuit (11) set by the operation of the test switch (4) is ORed with the port P0 of the microcomputer (6) described above.
Drive device (2A) for paying out change through the gate (10),
(2B) and the electromagnetic solenoid (S), the output terminals 1 to 4 of the 8-bit shift register (5), which is the test control means, are in the state shown in FIG. The output of 1 which is the output terminal of the yen coin is to the OR gate (7A) and the output of 2 which is the output terminal of the 50 yen coin is the output terminals of OR gates (7A) and (7C) and the output terminal of the 100 yen coin which is 3 The output is OR gate (7B) and the output of 4 which is the output terminal of the 500 yen coin is OR
The gates (7B) and (7C) are applied to the respective gates. Therefore, these OR gates (7A), (7
The outputs of B) and (7C) can be applied to the change dispensing drive devices (2A) and (2B) and the electromagnetic solenoid (S) through the corresponding driver circuits (8A), (8B) and (8C). Becomes Reference numeral (12) is an off-delay circuit, and the off-delay circuit (12) is connected to a data input terminal DS of the shift register (5), and a clock input terminal CL of the shift register (5) is connected via an OR gate (13). Test switch (4) and pulse switch (9
A) and (9B), the carry output of the shift register (5) is fed from the CLR terminal to the flip-flop circuit (1).
1) is input as a reset signal.

With the above configuration, the normal microcomputer (6) receives "H" from any one of the terminals 1 to 3 corresponding to the change dispensing device of the port P1 when the data for change dispensing is transferred from the central control unit (1). Is output and "H" is output from the port P3 to perform change-out control. The central control unit (1) determines the selling price of each item based on the input amount of money for the change payment data, whether or not there is change, and whether or not there is a product, and whether or not there is a product. After detecting the operation of (not shown), it is transferred to the microcomputer (6). Then, after any of the motors (2A) and (2B) is turned, the corresponding pulse switches (9A) and (9B) are turned off and the output becomes “L”, and then the change dispensing drive device is in a driving state. (2
When (A) and (2B) perform the necessary rotation to send out change coins, and the pulse switches (9A) and (9B) are turned on again and the output becomes "H", the microcomputer (6 gives change payment). When it is finished, all the ports P1 and P3 are set to “L” to stop the change dispensing drive devices (2A) and (2B), and the microcomputer (6) is a code indicating the end of the change dispensing to the central control unit (1). The data is output, and the central control unit (1 shifts to the next state.

Next, the operation during the test will be described. When the tester operates the test switch (4), the flip-flop circuit (11) is set to form a test sequence, and the OR payout driving devices (2A) and (2B) and the electromagnetic solenoid (S) have OR gates (10). ), The output “H” of the flip-flop circuit (11) is supplied. Since the output “H” of the flip-flop circuit (11) is also supplied to the port P0 of the microcomputer (6),
The microcomputer (6) detects that it is a test sequence and stops the normal operation state according to the instruction of the central control unit (1). Then, the AND gate (14) produces an output by the set output of the flip-flop circuit (11) and the operation output of the test switch (4), and the off-delay circuit (12) is connected to the data input terminal DS of the shift registrar (5). Output "H". The off-delay circuit (1
2) outputs "H" to the data input terminal DS for a certain period of time even after the test switch (4) is automatically restored. On the other hand, the operation output of the test switch (4) is introduced as a shift pulse into the clock input terminal CL of the shift register (5) via the OR gate (13). Therefore shift register (5)
Stores "H" of the data input terminal DS and outputs "H" from the output terminal 1, so that the change dispensing drive device (2A) is driven. Then, the output of the pulse switch (9A) interlocking with the change dispensing drive device (2A) is switched from "H" to "L", and when the 10-yen coin, which is change coin, is discharged and returns to "H", the shift is performed. The register (5) shifts up at the rising edge of the pulse switch output from "L" to "H". Therefore, "H" is generated again from the output terminal 2, and the change-out driving device (2A) described above is substantially equivalent to the switching control so that the 50-yen coin can be paid out by the exciting operation of the electromagnetic solenoid (S). Start driving and pay out 50 yen coins. In this process, when the pulse switch (9A) outputs from "L" to "H", the shift register (5) further shifts up and sequentially outputs signals from the output terminals 3 and 4 for 100 yen of different denominations. It pays out 500 yen coins one by one.

When the storage of the shift register (5) is completed and a carry output is generated from the output terminal 5 and applied to the CLR terminal, the contents stored in the shift register (5) are cleared and the flip-flop is executed. The circuit (11) is reset, ending the test sequence. By the operation of the test sequence, the tester operates the coin dispensing drive devices (2A), (2B) in the coin mechanical control unit (3),
The abnormality of the pulse switches (9A), (9B) and the signal harness can be confirmed. And flip-flop circuit (11)
The glue set causes the microcomputer (6) to perform a normal operation in accordance with a command from the central control unit (1).

Although the test control means is composed of the shift register (5) in this example, the microcomputer (6) may be provided with such a function. That is, when the microcomputer (6) detects that the test switch (4) is ON, the microcomputer (6) shifts to the test sequence program, and first the port P
3 is set to "H", and thereafter, every time the input to the port P2 changes from "L" to "H", "H" is sequentially output from the terminals 1 to 3 of the port P1.

(G) Effect of the Invention According to the present invention, the abnormality of the coin mechanical control unit of the vending machine can be tested separately from the central control unit board, so that failure analysis becomes reliable, and the cause of the abnormality in the vending machine is the change dispensing drive. Whether it is in the device and denomination switching drive device or in the central control unit and other terminals can be surely determined. Moreover, since the test operation is achieved only by the operation of the test switch, the abnormality of the coin mechanical control unit can be easily determined at the stage of market service.

[Brief description of drawings]

FIG. 1 is a control circuit of a coin mechanical control section according to the present invention, and FIG. 2 is a change coin payout drive device (2A) (2B) and an electromagnetic solenoid (S) in relation to each other. It is a change coin payout table to be issued. (1) ... Central control unit, (2A) (2B) ... Change dispensing drive device, (3) ... Coin mechanical control unit, (4) ... Test switch, (5) ... Test control means.

Claims (1)

[Claims] Claim: What is claimed is: 1. An automatic vending machine including a change dispensing drive device and a denomination switching drive device for freely paying out each denomination-type coin stored, and controls the overall operation of the vending machine. A central control unit, and a coin mechanical control unit for controlling the terminal portion related to the coin processing function of the vending machine,
A test switch connected to the coin mechanical control unit, wherein the central control unit includes means for outputting change payout data to the coin mechanical control unit at the time of change payout, and the coin mechanical control unit receives change due to input of change payout data. Means for driving the change dispensing drive device and the denomination change drive device based on the payout data, and driving the change payout drive device and the denomination change drive device in response to the operation of the test switch to collect coins of all denominations. A change dispensing test device for a vending machine, comprising a test control means for dispensing one by one.