JP3565088B2 - Vending machine control device - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a vending machine control device including a terminal control unit that individually controls each unit of a vending machine, and a main control unit that controls and controls them while communicating with the terminal control units. It is.
[0002]
[Prior art]
FIG. 2 is a control block diagram of a conventional vending machine. The coin processing control unit 2 identifies the coin inserted into the coin insertion slot, and notifies the main control unit 1 of the result. The bill processing control unit 3 identifies the bill inserted into the bill insertion slot, and notifies the main control unit 1 of the result. The input control unit 4 is connected to a keyboard and a data display (not shown), and performs various data settings by operating the keyboard while displaying necessary items on the data display.
[0003]
The display control unit 5 controls display of an amount indicator (not shown), switch detection of a product selection button (not shown), and blinking control of a sellable lamp and a sold-out lamp attached to the product selection button. At the same time, blinking control of the fluorescent lamp 6 illuminating the illuminating unit is performed. The sales / cooling / heat control unit 7 controls a product unloading mechanism that unloads products by operating a bend solenoid (not shown) provided at a lower end of each product storage column, or is provided in each product storage column. The on-off state of a sold-out switch (not shown) is detected, and a cooling / heating device 8 including a cooling unit, a heating heater, a fan motor, and the like is operated based on an output of a temperature sensor provided in the refrigerator. Control.
[0004]
The main control unit 1 communicates with a terminal control unit such as a coin processing control unit 2, a bill processing control unit 3, an input control unit 4, a display control unit 5, and a sales / cooling heat control unit 7 through a signal line 10. As they do, they control them collectively. DC power for operating the terminal control units such as the main control unit 1, the coin processing control unit 2, the bill processing control unit 3, and the like is supplied from the power supply unit 9 through the power supply line 11, and the fluorescent lamp 6. The AC power supplied to the cooling device 8 is also supplied by the power supply unit 9.
[0005]
The power supply unit 9 includes a rectifier, an inverter, and the like, converts AC 100 V of commercial power into DC or AC of a predetermined voltage, and supplies power to the above units. Further, an overvoltage detector and an overcurrent detector are provided inside the power supply unit 9, and when an overvoltage or overcurrent of a predetermined value or more is detected, the power supply is shut off and the power supply unit 9 and the inside of the vending machine are removed. Each part was protected.
[0006]
[Problems to be solved by the invention]
However, in the conventional power supply unit 9 described above, the protection function works only for overvoltage and overcurrent that are equal to or more than a predetermined value. Therefore, in the case of a bend solenoid of a vending machine, motors of a cooling device, etc. There has been a problem that overvoltage or overcurrent in a range that cannot be reached may result in burning. Further, when the protection function is activated and the power is turned off, it is not known at which part the abnormality has occurred, and there is a problem that it takes time to search for an abnormal part. Further, in the conventional vending machine control device, if a commercial power supply is interrupted during a vending operation, there is a problem in that data being processed, such as the amount of money input, is lost, thereby causing a loss to vending machine users. Was.
[0007]
The present invention solves such a problem, enables an abnormality to be detected before a large overvoltage or an overcurrent is reached, enables a location of the abnormality to be specified, and furthermore, a power failure occurs during a sales operation. However, the purpose is to be able to protect data.
[0008]
[Means for Solving the Problems]
In order to solve the problem, the vending machine control device according to claim 1 controls a terminal control unit that controls each unit of the vending machine, and communicates with the terminal control unit while controlling them. A vending machine control device comprising: a main control unit for controlling the vending machine; and a power control unit for controlling a power supply device for supplying power to each unit of the vending machine as one of the terminal control units. Transmitting data indicating a state of the power supply device to the main control unit, wherein the main control unit determines an abnormality inside the vending machine based on the data received from the power supply control unit. And In this way, even if an abnormality occurs in the electric component or the power supply device inside the vending machine, the abnormality can be detected and dealt with before the part is burnt, and the location of the abnormality can be specified. Become like
[0009]
The vending machine control device according to claim 2 is a terminal control unit that controls each unit of the vending machine, and a main control unit that controls and controls them while communicating with the terminal control units. A vending machine control device comprising: as one of the terminal control units, a power supply control unit that controls a power supply device that supplies power to each unit of the vending machine, wherein the power supply control unit includes the power supply device. By monitoring the status of the vending machine, an abnormality in the vending machine is detected, and the abnormality is notified to the main control unit. Even in this case, it is possible to deal with abnormalities in the electric components and the power supply device inside the vending machine by detecting the abnormalities before the parts burn out.
[0010]
According to a third aspect of the present invention, the vending machine control device is characterized in that the power control unit controls on / off of an output of the power supply device based on a command from the main control unit. In this way, the lighting and the like can be automatically turned off during a time period when there are almost no purchasers, such as at midnight, and power can be saved.
[0011]
In the vending machine control device according to a fourth aspect, the power supply control unit controls an output voltage of the power supply device based on a command from the main control unit. In this way, it is possible to adjust the brightness of the fluorescent lamp and the output of the cooling device, and it is possible to cope with a case where loads having different power supply voltages are provided in the future.
[0012]
Furthermore, the vending machine control device according to claim 5, when a power failure occurs, the power supply control unit detects the power failure, and stores necessary data in a non-volatile memory before the DC output voltage of the power supply device is completely reduced. It is characterized by being evacuated. In this way, even if a power failure occurs during the selling operation, data can be protected.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0014]
FIG. 1 is a block diagram showing one embodiment of the present invention. In the vending machine control device of the present invention, the power supply unit 9 includes a power supply control unit 9B for controlling the power supply device 9A. The power supply control unit 9B includes a CPU (not shown), like the other terminal control units such as the coin processing control unit 2, the bill processing control unit 3, and the like, and functions as one terminal control unit. I do. The power supply control unit 9B controls the power supply device 9A including a rectifier and an inverter, and is connected to the signal line 10 so that data communication with the main control unit 1 is possible. The power supply device 9A is controlled by turning on and off the AC and DC outputs and controlling the voltage in response to a command from the main control unit 1. In particular, for the AC output, the output frequency of the inverter is also variably controlled. By controlling the rotation speed of the compressor motor and fan motor, power saving operation is also possible.
[0015]
The power supply control unit 9B includes a voltage sensor and a current sensor for detecting the input / output voltage and the input / output current of the power supply device 9A, and transmits a voltage and a current value which are analog quantities detected by those sensors. An A / D conversion circuit for converting the digital data into trust digital data is provided. Then, the input / output voltage and the input / output current of the power supply device 9A are detected, and the detected values are transmitted to the main control unit 1 via the signal line 10.
[0016]
When the main control unit 1 receives the input / output voltage and the input / output current of the power supply device 9A from the power supply control unit 9B, the main control unit 1 compares the input / output voltage and the input / output current with the values held in the normal state, and changes in the values over time. On the basis of this, an abnormality occurring due to deterioration of parts used in each part of the vending machine is detected at an early stage. As a result, it is possible to display the occurrence of an abnormality or to shut off the power supply before the component is burned out.
[0017]
Then, the main control unit 1 can identify a point in time when an abnormality appears in the input / output voltage and the input / output current. I do. For example, if an overcurrent occurs during the operation of a motor for dispensing goods in a certain column, it can be understood that an abnormality has occurred in the motor. As a result, it is possible to quickly take measures such as replacing the part or device in which the abnormality has occurred, and to greatly reduce the maintenance time.
[0018]
Also, when a power failure occurs in the commercial power supply of AC 100 V, in the conventional vending machine control device, the DC power supplies of the main control unit 1 and each terminal control unit also decrease in voltage, and the data processed at that time is reduced. Disappears. For example, even if the data of the inserted coin is held during the selling operation, if the power failure occurs, the amount data is lost, and an unfair loss is given to the vending machine user. Therefore, the vending machine control device of the present invention detects the occurrence of a power failure as soon as possible, and saves necessary data to a storage area of the nonvolatile memory before the DC output voltage of the power supply device 9A is completely reduced. It becomes possible.
[0019]
Further, the power control unit 9B detects the temperature of the power supply 9A, the output frequency of the inverter in the power supply 9A, and the like as well as the input / output voltage and the input / output current as the data indicating the state of the power supply 9A. The notification can also be sent to the unit 1. As described above, by increasing the number of detection items, more precise abnormality detection becomes possible.
[0020]
Furthermore, instead of notifying the main control unit 1 of the detection value of the sensor in the power supply 9A, the power supply control unit 9B determines the occurrence of an abnormality in the power supply 9A based on the detection values of the various sensors. The result may be notified to the main control unit 1.
[0021]
【The invention's effect】
The present invention is configured as described above, and has the following effects.
[0022]
That is, the vending machine control device according to claim 1 transmits data indicating a state of the power supply to the main control unit while controlling the power supply unit by the power supply control unit. An abnormality in the vending machine is determined based on data received from the vending machine. As a result, even if an abnormality occurs in the electric components or the power supply device inside the vending machine, the abnormality can be detected and dealt with before the parts are burnt, and the location of the abnormality can be specified. Become.
[0023]
The vending machine control device according to claim 2, wherein the power control unit controls the power supply device, detects an abnormality in the vending machine based on data indicating the state of the power supply device, and controls the main control unit. Was notified. As a result, it is possible to detect an abnormality in the electric components and the power supply device inside the vending machine and detect and deal with the abnormality before the parts are burnt.
[0024]
In the vending machine control device according to the third aspect, the power supply control unit controls the output of the power supply device to be on / off based on a command from the main control unit. During the time period, the lighting and the like can be automatically turned off, thereby saving power.
[0025]
In the vending machine control device according to the fourth aspect, the power supply control unit controls the output voltage of the power supply device based on a command from the main control unit. It is possible to adjust the output of the device, and it is possible to cope with a case where loads having different power supply voltages are provided in the future.
[0026]
Further, in the vending machine control device according to the present invention, when a power failure occurs, the power supply control unit detects the power failure and saves necessary data to a nonvolatile memory before the DC output voltage of the power supply device is completely reduced. As a result, even if a power failure occurs during the selling operation, data can be protected, and no loss is given to the vending machine user.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is a control block diagram of a conventional vending machine.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Main control part 5 ... Display control part 6 ... Fluorescent lamp 7 ... Sales and cooling control part 8 ... Cooling device 9 ... Power supply part 10 ... Signal line 11 ... Power supply line

Claims (5)

A vending machine control device including a terminal control unit that controls each unit of the vending machine, and a main control unit that controls and controls them while communicating with the terminal control unit,
As one of the terminal control units, the terminal control unit includes a power supply control unit that controls a power supply unit that supplies power to each unit of the vending machine, and the power supply control unit transmits data indicating a state of the power supply unit to the main control unit. The vending machine control device is characterized in that the main control unit determines an abnormality inside the vending machine based on the data received from the power supply control unit. A vending machine control device including a terminal control unit that controls each unit of the vending machine, and a main control unit that controls and controls them while communicating with the terminal control unit,
As one of the terminal control units, the vending machine includes a power supply control unit that controls a power supply device that supplies power to each unit, and the power supply control unit monitors the state of the power supply device to thereby control the inside of the vending machine. A vending machine control device characterized by detecting an abnormality and notifying the main control unit. The vending machine control device according to claim 1, wherein the power supply control unit controls on / off of an output of the power supply device based on a command from the main control unit. The vending machine control device according to claim 1, wherein the power control unit controls an output voltage of a power supply device based on a command from the main control unit. The power supply control section detects the occurrence of a power failure and saves necessary data to a non-volatile memory before the DC output voltage of the power supply device is completely reduced. Or the vending machine control device according to 4.

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