JPS6361718B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a fault display device that displays a fault that has occurred in a device such as a coin sorting and counting mechanism for a vending machine (hereinafter referred to as a coin mechanism), and particularly relates to This allows efficient display of multiple types of failures that have occurred.

[Prior Art] Generally, when a failure occurs in the coin mechanism of a vending machine, a code is set according to the type of failure, and that code is displayed on a digital display when the failure occurs. However, conventionally, when multiple types of failure occur,
(1) First, only one type of failure with a high priority is displayed depending on the type of failure, or (2) For example, a failure code in binary code etc. is added and displayed, or (3) For failure display. A display method was used in which multiple types of fault codes were displayed in sequence by pressing a pushbutton switch multiple times. This kind of prior art technique is described in Japanese Patent Application Laid-Open No. 17795/1982 and Japanese Utility Model Application No. 143023/1983.

[Problems to be Solved by the Invention] However, with the display method (1), it is not possible to determine the types of other failures, and therefore the power is turned on again after repairing the type of failure that is displayed first. However, it has the disadvantage that the next priority fault code cannot be determined unless it is operated.Also, in the display method (2), the fault codes added and displayed are broken down to determine the type of each fault. In addition, with the display method (3), you have to press the fault display pushbutton switch many times to see which faults are occurring at the same time. There was an operational drawback in that the number of types could not be determined.

It is an object of the present invention to eliminate the above-mentioned conventional drawbacks, and to display the number of types of failures for multiple types of failures that occur simultaneously in the coin mechanism of a vending machine, and to automatically generate a fault code for each. It is an object of the present invention to provide a failure display device which repeatedly displays the failure information in sequence and allows the user to know the type of failure occurring with one operation or without any operation.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention includes a plurality of fault detection memories each set according to the type of detected fault, and a multi-digit display. A fault display device for a vending machine according to the present invention includes a counting means for checking whether or not each of the fault detection memories is set and counting the number of the fault detection memories set, and displaying the number counted by the counting means. a failure number display means for displaying the number of failures in a predetermined digit of a device; a designation means for repeatedly designating the failure detection memory one by one by incrementing after counting by the counting means; and a failure detection memory designated by the designation means. a stop means for detecting that the specified means is set and stops the progress of the specifying means; and a failure code corresponding to the fault detection memory specified by the specifying means whose progress is stopped by the stop means on the display. and a timer that generates an output at a predetermined period and releases the stoppage of the specifying means by the stopping means based on the output. It is said that

[Function] In the present invention, the number of failures is counted by the counting means, and this number of failures is displayed on a predetermined digit of the display, and the other digits of the display indicate the designated means that has been stopped in steps. The fault code corresponding to the specified fault detection memory is displayed. Then, the designation means repeatedly designates the fault detection memories one by one by stepping, and if the designated fault detection memory is set, the designation means stops the progress, and stops the progress based on the output of the timer. will be canceled. Therefore, when the specifying means specifies one of the set failure detection memories, the designation means is incremented and stopped, and the failure code corresponding to this failure detection memory is displayed until the incrementation stop is canceled by the timer output. . After that, when the step stop is canceled by the timer output, the designation means starts stepping again, and the same process is repeated, such as specifying the next set failure detection memory and stopping the step. . In this way, a plurality of fault codes are repeatedly displayed one by one in the other digits of the display at the cycle of the timer.

[Example] The present invention will be described in detail below with reference to the drawings.

First, an example of the mode of failure display according to the present invention will be explained in the first section.
As shown in the figure. That is, in the failure display device of the present invention, as shown in the figure, for example, at the left end of the display,
Displays the number of failure types that are occurring at the same time, for example, "3," displays a symbol that broadly categorizes the failure type, for example, "A," in the center of the display, and displays that "A" at the right end of the display. '' types of failures are subdivided into numerical values representing the details of the failure, such as ``1'', ``2'', and ``3'', and these failure codes are ``A1'',
"A2" and "A3" are displayed repeatedly in sequence as shown.

A second example of the configuration of a display control circuit that controls and drives a failure indicator so as to display a failure in the manner described above is shown below.
As shown in the figure. In the display control circuit having the configuration shown in the figure, for example, fault detection memories 1, 2, . When set according to the type of fault detected, the Q output terminal of the flip-flop constituting each memory becomes a high logic level "1" (hereinafter simply referred to as "1"). On the other hand, when the fault display start switch 20 is closed automatically or manually in response to the occurrence of a fault, the timer 10
starts, clears the failure number counter 6, drives the shift register 4 to start stepping, and sequentially outputs the parallel output "1" to the OR gate, 1
AND gate 1 via 4, 15, ..., 16
1, 12, . . . , 13 respectively supply flip-flops 1, 2, .
By forming an AND with the Q output of 3, it is sequentially checked which fault detection flip-flops are set or not. For example, when the output of the flip-flop constituting the failure detection memory 1 is "1", the AND gate 11 operates the AND gate 11 when the first parallel output "1" of the shift register 4 is supplied via the OR gate 14. The output is set to "1", and the output "1" of the AND gate 11 is output to the OR gate 17 and the AND gate 1.
8 and is applied to the failure number counter 6 to increment the counter 6. Then, when the second parallel output "1" of the shift register 4 is supplied to the AND gate 12 via the OR gate 15,
The Q output of the flip-flop constituting the fault detection memory 2 is "1" and the low logic level is "0" (hereinafter simply referred to as "0") to check whether the flip-flop is set due to the occurrence of a fault. , if it is not set, the AND output of the AND gate 12 will be "0", so
The failure number counter 6 does not increment and moves on to checking the next failure detection flip-flop. In this way, the final stage failure detection flip-flop 3
When the check is completed, the step of the shift register 4 goes through one round, and its serial output "1" sets the fault code flip-flop 19, and the set output starts the oscillator 9, which starts the ring oscillator 5 and , a "0" signal is applied to the AND gate 18 via the inverter 21 to stop the failure number counter 6 from incrementing.

As described above, with the AND gate 18 closed and the count value of the failure number counter 6, that is, the number of failure occurrences, is fixed, the parallel output "1" of the ring oscillator 5 is sequentially transmitted to the OR gates 14, 15, . . . , 16. is sequentially supplied to AND gates 11, 12, . . . , 13 via In this case, the AND output "1" of the AND gate 11 resets the fault code flip-flop 19 via the OR gate 17, stopping the operation of the oscillator 9 and stopping the step of the ring oscillator 5. In such a state, the count value of the failure number counter 6, that is, the number of failure occurrences, is displayed on the left end of the display 22 via the display converter 7, and the parallel sequential outputs of the ring oscillator 5 are displayed via the display converter 8. At the center and right end of the display 22, the failed fault code "A1" described above with reference to FIG. 1 is displayed.

In this display state, when a predetermined period of time has elapsed, the timer 10 operates again, repeating the above-described series of operations, and then displays a failure code corresponding to the set failure detection flip-flop. , and similar failure indications will be repeated one after another. In addition,
During that time, changes in the type of failure will always be displayed, so
This is extremely convenient for dealing with this.

In the above embodiment, the counting means includes the shift register 4, the OR gates 14, 15, 16, 1
7, constituted by AND gates 11, 12, 13, 18, and failure number counter 6, failure number display means constituted by display converter 7, designation means constituted by ring oscillator 5 and oscillator 9, The stopping means includes or gates 14, 15, 16,
17, AND gates 11, 12, 13, and a flip-flop 19, and a display converter 8 constitutes a fault code display means.
In addition, here, or gate 14, 15, 16, 17
Although the AND gates 11, 12, and 13 are shared by the counting means and the stopping means, the present invention is not limited thereto.

[Effects of the Invention] As is clear from the above explanation, according to the present invention, even when multiple types of failures occur simultaneously in the coin mechanism of a vending machine, the number of failures can be seen at a glance, and all Since the details of the failure are automatically displayed in sequence, the situation in which the failure has occurred can be grasped very clearly, and maintenance of the device is much easier than in the past, which is a remarkable effect.

[Brief explanation of drawings]

FIG. 1 is a diagram showing an example of the mode of failure indication according to the present invention, and FIG. 2 is a block diagram showing an example of the configuration of the failure indication control circuit. 1, 2, 3... Flip-flop for failure detection memory, 4... Shift register, 5... Ring oscillator, 6... Failure number counter, 7, 8... Display converter, 9... Oscillator, 10... Timer ,11,1
2, 13, 18...and gate, 14, 15,
16, 17...OR gate, 19...flip-flop for fault code, 20...failure display start switch, 21...inverter, 22...indicator.

Claims (1)

[Claims] 1. In a fault display device for a vending machine, which is equipped with a plurality of fault detection memories each set according to the type of detected fault, and a multi-digit display device, is the fault detection memory set for each of the fault detection memories? a counting means for counting the number of items that are set by checking whether or not the fault is set; a failure number display means for displaying the number counted by the counting means in a predetermined digit of the display; and after the counting by the counting means; a specifying means for repeatedly specifying the failure detection memories one by one by stepping; and a stop means for detecting that the failure detection memory specified by the specifying means is set and stopping the progress of the specifying means. and,
a failure code display means for displaying a failure code corresponding to the failure detection memory designated by the designation means whose progress has been stopped by the stop means on other digits of the display; A fault display device for a vending machine, comprising: a timer for canceling the stoppage of the specifying means by the stopping means based on an output.