JPH0120317Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a refueling device that can selectively display the amount of change instead of displaying the amount of refueling.

When refueling at a gas station is performed as a cash transaction, calculating change is a troublesome problem for gas station employees. In other words, when refueling a fuel tank such as a car, especially when refueling with a so-called "full tank," the amount of refueling rarely corresponds to an amount with no fractions in the digits below 100 yen. Since it is rare to pay exactly the same amount as the refueling amount, it is necessary to always calculate the change, and if you make a mistake in calculation, it will hurt the customer's mood, so it is important to have a good attitude towards gas station employees, especially when there are a lot of customers. The stress is great.

In the past, examples of fueling machines that displayed the difference (change) between the amount paid by the customer and the refueling amount were, for example,
The one described in Publication No. 106089 (Utility Application No. 182759/1989 specification and drawings) has been proposed.

With this device, the amount paid by the customer (deposited amount) is entered using a key, and the difference between the amount paid and the refueling amount is displayed as change, but the amount of change is displayed at the same time as other data such as the refueling amount. Since it is displayed, it is difficult to know which display value is the change amount, and there is also the inconvenience of having to enter the deposit amount using a key each time.

In view of the above points, the present invention allows change to be displayed without the need for inputting the deposited amount, and when displaying change, other data is displayed as zero or darkened. .

That is, the device of the present invention includes: a nozzle detection switch that detects the refueling position and non-refueling position of the refueling nozzle and generates a refueling nozzle refueling position signal and a refueling nozzle non-refueling position signal having different levels, respectively; A unit price setting device that sets a unit price, a flow rate pulse generator that generates a flow rate pulse according to the amount of oil supplied, a refueling amount calculation circuit that calculates a refueling amount from the refueling unit price and flow rate pulse, and a display switching command signal for the display unit. A subtracted value is obtained by subtracting the value below the thousand yen of the refueling amount from the value of 10,000 yen on the condition of AND input between the changeover switch that generates the refueling nozzle non-refueling position signal and the display switching command signal. and a refueling amount display, a refueling amount display, and a refueling unit price display that display the refueling amount, refueling amount, and refueling unit price, respectively, and the refueling amount display unit is provided with a refueling amount display, a refueling amount display, and a refueling unit price display that display the refueling amount, refueling amount, and refueling unit price, respectively, and the refueling amount is changed by the display switching command signal. Displaying the current display of the amount display and the refueling amount display to zero or darkening the display, and displaying the subtracted value from the change calculation circuit on any of the refueling amount display, the refueling amount display, and the refueling unit price display. It consists of a display section that displays

Hereinafter, an example in which the present invention is applied to a ground-based refueling aircraft will be described in detail with reference to the drawings.

In Fig. 1, 1 is a refueling machine housing, 2 is an underground oil storage tank, 3 is an oil pumping pipe, 4 is a pump,
5 is a pump motor, 6 is a flow meter, 7 is a flow meter 6
Electric pulse corresponding to the oil level measured by (e.g. 1/
1 pulse per 100 liters), 8 is a hose, 9 is a refueling nozzle, 10
11 is a nozzle detection switch that operates in response to the nozzle 9 being connected to and removed from the nozzle case 10; 12 is a display unit; 13 is a nozzle case that accommodates a refueling nozzle;
is the control section.

FIG. 2 shows details of the control section. When the nozzle 9 is removed from the nozzle case 10 (non-refueling position) (moved to the refueling position), the nozzle signal a from the nozzle detection switch 11 changes from low level L to high level H (refueling nozzle refueling position signal changes). occurred),
As a result, the counting circuit 14 and the refueling amount calculation circuit 15
The change calculation circuit 16 is reset (the counted value or calculated value of the previous refueling returns to zero), and
The motor control circuit 17 energizes the pump motor 5. The fuel unit price, for example, 165 yen per liter, is set in advance by the unit price setter 18, and the set value is displayed on the unit price display 20 via the display drive circuit 19, and is also constantly given to the arithmetic circuit 15. ing.

When refueling is performed by operating the refueling nozzle 9, the flow rate pulse generator 7 generates flow rate pulses b, according to the amount of refueling.
For example, a 1/100 liter pulse is applied to the counting circuit 14 and the refueling amount calculation circuit 15. Counting circuit 14
The count output (refueling amount) is given to the refueling amount display 22 via the display drive circuit 21 to sequentially display the refueling amount. The refueling amount calculation circuit 15 uses the flow rate pulse b
Based on this, the unit price set by the unit price setter 18 is used to calculate, for example, 165 yen/liter x n/100 liter (n is the number of flow rate pulses) in the previous example, and the calculated value (refueling amount) is transferred to the switching circuit 23 on the one hand. and the refueling amount display 2 via the display drive circuit 24.
5 are sequentially displayed, and the change is given to the change calculating circuit 16 on the other hand.

When refueling is completed and the nozzle 9 is hooked back to the nozzle case 10, the nozzle detection switch 11 is reset and the nozzle signal a changes from H to L (refueling nozzle non-refueling position signal is generated), thereby controlling the motor. Circuit 17 de-energizes motor 5. The change calculation circuit 16 changes from H to L in this nozzle signal a.
takes in the output of the refueling amount calculation circuit 15, that is, the refueling amount M yen, performs, for example, one of the following calculations for each predetermined range of refueling amount, and stores the calculation result value.

Refueling amount (M yen) Calculation formula 0 yen < M yen ≦ 1000 yen 1000 yen - M yen 1000 yen < M yen ≦ 5000 yen 5000 yen - M yen 5000 yen < M yen ≦ 10000 yen 10000 yen - M yen 10000 yen < M yen ≦ 20,000 yen 20,000 yen - M yen 20,000 yen < M yen ≦ 30,000 yen 30,000 yen - M yen As shown in Figure 3 A, the current unit price is 165 yen/liter, the amount of oil supplied is 35 liters, and the refueling amount is 5,775 yen. In this case, the change calculation circuit 16 is as described above.
Calculate 10,000 yen - 5,775 yen = 4,225 yen and store the calculation result of 4,225 yen.

Then, when the changeover display instruction switch 27 is pressed, the signal c is given to the display drive circuits 19 and 21, which temporarily stops the power supply to these circuits and displays the display (refueling amount and unit price) on the displays 20 and 22. is temporarily decreased, and the characters "Change" given to the "Change" character display 26 are temporarily displayed.

The signal c is also applied to the change calculation circuit 16, which causes the stored value (4,225 yen in the above example) to be outputted and applied to the switching circuit 23. The signal c is also given to the switching circuit 23, and the switching circuit 23 is connected to the refueling amount calculation circuit 1.
The output value from the change calculation circuit 16 (4225 yen) is temporarily displayed on the amount display 25 via the display drive circuit 24 instead of the output value from 5 (5775 yen in the above example). As mentioned above, at this time, the character "Change" is displayed on the "Change" character display 26 due to the signal c, so the displayed value (4225 yen) on the refueling amount display 25 is confirmed to be change. I understand.
The state at this time is shown in FIG. 3B.

The signal c is a continuous signal, and when the signal c disappears by releasing the push button of the changeover display instruction switch 27 or by pressing the push button again to restore the switch 27, the changeover circuit 23 is switched to its original state, the display drive circuits 19 and 21 and the "change" character display 26 are also restored, and the display on the display returns to the state shown in FIG. 3A.

In Figure 3B, when the change amount is displayed, the display of the refueling amount and unit price disappears (no display), but as shown in Figure 3C, the unit price remains displayed. The refueling amount can also be displayed as zero. Therefore, in this specification, "concealment" includes both "no display or darkening" and "zero display." In the case of FIG. 3c, the display of the unit price can also be hidden.

In the above embodiment, the calculation of change in the change calculation circuit 16 is started when the nozzle signal a changes from H to L (when the nozzle 9 is returned to the nozzle case 10). The calculation of change may be started by outputting the signal c on the condition that the change has changed from H to L, and the calculated value may be output to the switching circuit 23 upon completion of the calculation. In any case, the reason why the change amount is switched and displayed instead of the refueling amount is conditional on signal a from H to L (returning the nozzle to the nozzle case) because the switching operation is performed during refueling. This is to prevent the display of a numerical value without a direct reference to the amount, since this could give customers doubts or distrust, and could easily lead to mistakes.

In addition, in the embodiment shown in FIG. 2, the refueling amount is divided in advance into several stages or ranges (for example, an amount range that is an integral multiple of the range considering the type of banknote), and the probability of being paid for the refueling amount within each range is determined. The system is configured to calculate and display the strongest change amount (the difference between the highest amount in each amount range and the refueling amount), so the displayed change amount does not necessarily match the actual change amount to be paid. Cases may also occur. For example, in the example above, if the refueling amount is 1,650 yen, the change will be displayed as 5,000 yen - 1,650 yen = 3,350 yen, but this is because it is predicted that customers will most often pay with 5,000 yen bills. Yes, if the customer pays with two 1000 yen bills, of course there will be no change.
It costs 350 yen. However, even in this case, the last three digits of the change amount display are correct, so it is easy for the gas station employee to calculate the change.

Of course, the calculation by the calculation circuit 16 may be performed in increments of 1000 yen or in other ranges of amounts.

Note that the amount of change can also be displayed on the fuel supply amount display 22 or the unit price display 20. Furthermore, the present invention can be implemented in, for example, a ceiling-suspended type refueling apparatus in addition to the ground-mounted refueling apparatus.

As described above, according to the present invention, since it is possible to know the change or the approximate amount of change as needed when refueling is completed, refueling work for cash customers can be performed efficiently and accurately.

In addition, since the above-mentioned guideline amount is displayed instead of the display on one of the displays, there is no need to install an additional display, and when displaying the above-mentioned guideline amount, the display on the other display is also displayed. Since the display is set to zero or goes dark, confusion can be eliminated.Furthermore, since the indication of the above-mentioned guideline amount is made with the condition that the refueling nozzle is in the non-refueling position, the above-mentioned guideline amount is displayed while refueling. It also has the effect of being displayed in place of the amount of fuel to be filled or the amount of fuel to be filled, thereby eliminating the risk of causing doubts or distrust among customers.

[Brief explanation of the drawing]

Fig. 1 is a schematic configuration diagram of an embodiment of the present invention, Fig. 2 is a block diagram showing an example of a control section, Fig. 3A,
B and C are front views showing different display states of the display unit. 1...Refueling machine housing, 2...Underground oil storage tank, 3...Oil pumping pipe, 4...Pump, 6...
Flow meter, 7...Flow rate pulse transmitter, 10...Nozzle case, 11...Nozzle detection switch, 12...
...Display section, 13... Control section.

Claims (1)

[Scope of Claim for Utility Model Registration] A nozzle detection switch that detects the refueling position and non-refueling position of a refueling nozzle and generates a refueling nozzle refueling position signal and a refueling nozzle non-refueling position signal having different levels, respectively; A unit price setting device that sets a unit price, a flow rate pulse generator that generates a flow rate pulse according to the amount of refueling, a refueling amount calculation circuit that calculates the refueling amount from the refueling unit price and flow rate pulse, and a display switching command signal for the display. A subtracted value is obtained by subtracting the value below the 1,000 yen of the refueling amount from the value of 10,000 yen under the condition of AND input between the changeover switch that generates the refueling nozzle non-refueling position signal and the display switching command signal. and a refueling amount display, a refueling amount display, and a refueling unit price display that display the refueling amount, refueling amount, and refueling unit price, respectively, and the refueling amount display unit is provided with a refueling amount display, a refueling amount display, and a refueling unit price display that display the refueling amount, refueling amount, and refueling unit price, respectively, and the refueling amount is changed by the display switching command signal. A display that displays the current display of the amount display and the refueling amount display to zero or darkens it, and displays the subtracted value from the change calculation circuit on any of the refueling amount display, the refueling amount display, and the refueling unit price display. A refueling device characterized by comprising: