JPS5830995A - Controller for quantity of oil supplied in oil station system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] This invention provides a system for refueling quantity control in a refueling station system 1!4.
11L, especially at a gas station or the like where a plurality of measuring machines capable of switching fuel supply speeds are installed, a device related to the fuel supply amount w4Iml wheel position that controls so that preset fueling can be performed from each measuring machine.

For example, a weighing machine installed at a gas station has a pump for discharging gasoline from a refueling gun and a motor for driving the pump. When refueling, the attendant removes the refueling gun from the weighing machine and refuels the vehicle. However, even if a stop command is given to the motor after refueling a predetermined number of layers of gasoline, its rotation does not stop immediately due to signal delays in the electronic circuit that controls the motor and the motor's own inertia. As a result, excess gasoline leaked out of the refueling gun, making it impossible to refuel accurately at the set refueling amount.

Therefore, a method may be considered in which a stop command is given to the motor before completing the refueling of the amount set in advance in anticipation of the excess amount of outflow. For example, if the set oil supply amount is 201, a stop command is given to the motor when the oil supply amount reaches 19.881, and the remaining amount is 0.

12L of oil is supplied by the inertia rotation of the motor.

However, the fuel gun, which serves as the gasoline refueling port, has a gasoline flow rate of, for example, ^ speed. Medium speed.

It is possible to switch to three low speed stages, and depending on each style, an extra amount of outflow occurs due to the inert rotation of the motor. Therefore, fast. Medium speed. Inertia made it difficult to accurately determine the amount of outflow because the low speed created an extra amount of outflow.

Therefore, the main purpose of this invention is to make it possible to set a correction value corresponding to the excess amount of spillage for each of the plurality of totals that can be refueled by switching the refueling speed, so that the amount of refueling can be adjusted extremely accurately. An object of the present invention is to provide a refueling amount control device in a refueling station system.

To summarize this invention, each correction value corresponding to the amount of oil spilled due to one inertia rotation of the C motor is stored in accordance with each refueling speed of each weighing machine, and one of the plurality of weighing machines is In response to the specified oil supply speed and oil supply amount being set, a correction value corresponding to the specified oil supply speed of the measuring machine is deducted from the set oil supply amount, and the subtracted value is calculated. The motor is controlled to stop when the appropriate amount of oil has been supplied.

The present invention will be described in more detail below along with embodiments shown in the drawings.

FIG. 111 is a schematic diagram of a gas station system according to an embodiment of the present invention. In the figure, a main body 1 is placed inside the dust, and a reader printer 2 and a plurality of weighing machines 3, 3, . . . are placed outside the house. Each metering machine includes a refueling gun 31.

28 is an external view showing the operation section of the reader printer 2. FIG. The reader printer 2 is provided to select one of the plurality of measurements 3, 3, . . . and to set the amount of oil to be supplied. For this purpose, the reader printer 2 includes a card reader 21, a numeric keypad 225, a character display 23, a display lamp 24, and a selection switch 25.
and a printer 26. When the customer card is inserted, the card reader 21 reads the customer code recorded therein. The numeric keypad 22 is used to input the amount of refueling and to specify the refueling speed. For example, inputting 10.1 using the numeric keypad 22 specifies to refuel the IOL at high speed, inputting 10.2 specifies refueling the IOL at medium speed, and 10.3. If you enter , it will be specified to refuel at a low speed with 10 liters of gasoline. The character display amount 23 displays the amount of refueling in numbers, or, when IGTS sells a product such as a tire, displays the characters of that product. The indicator lamp 24 indicates which metering machine is being refueled. Selection switch 25
is for selecting one of the counting weighing machines 3, 3, . . . .

Printer 26&! After refueling is completed, data such as the amount of refueling is printed on a slip and issued.

FIG. 3 is a schematic one-shot diagram of an embodiment of the present invention.

In the configuration, the CPL is built into the main body 1 and includes a memory 12. This memory 12 stores correction values (described in detail in FIGS. 4 and 5 below) corresponding to each refueling speed for each weighing machine. The weighing machine control section 32 is built in each weighing machine and includes a flow counter 33, a zero detection circuit 34, a 7-lip flop 35, an OR gate 36, and a refueling completion detector 37.

The flow counter 33 is constituted by, for example, a down counter, and counts the amount of oil supplied.

That is, when data is set from the CPUII, the W&-counter 33 sequentially decrements the set value based on the refueling pulse. Zero detection @134 is flow counter 33
It detects when the count value of becomes zero,
A detection signal is applied to the reset input terminal of the 7-lip 70-tub 35 via one input terminal of the OR gate 36. A refueling start signal is applied from the CPU 11 to the set input terminal of the 7-lip 70-tub 35. Further, a reset signal is applied from the CPU 11 to the other input terminal of the OR gate 36.

FIG. 4 is a diagram showing the relationship between refueling speed and over-refueling amount, and FIG. 5 is a diagram showing a rank table of correction values.

Here, with reference to FIGS. 4 and 5, correction values that are a feature of the present invention will be briefly explained.

As shown in FIG. 4, the refueling speed of metering 113 is high.

The time t1 to t3 from when a stop command is given to the motor until it completely stops is different at medium speed and low speed. Therefore, the amount of extra gasoline that flows out after a stop command is given to the motor differs depending on the quick injection. This extra outflow is stored as a correction value in the memory 12 in correspondence with each account 3 as shown in FIG.

For example, if the speed is high in No. 1 weighing-3, the correction value is 0.06 per liter. Set 0°04 for medium speed and 0.02 for low speed. Therefore, for example, when refueling with 20L of gasoline, the correction value is 0.12.
1, and if a stop command is given to the motor when 19.881 is refueled, the remaining 0.12L can be refueled by one rotation due to inertia of the motor.

FIG. 6 is an operation flow diagram of one embodiment of the present invention, and FIG. 7 is a similar operation flow diagram.

First, with reference to FIG. 6, the order of operations performed by the staff member will be explained. In step (hereinafter referred to as 5P) 1, the clerk operates the selection switch 25 to select one of the plurality of measurements 113. Then, in SF3, the lamp corresponding to the selected weighing machine among the display lamps 24 lights up. science fiction
3, the P key included in the selection switch 25 is operated. This P key is used to specify that the amount of refueling will be set from now on. Numeric keypad 22 in SF3
is operated to input a preset value, that is, the amount of refueling requested by the customer, for example, 20 m. Numeric keypad 2 in SF3
2. Operate the keys included in 2 and enter the refueling speed using the numeric keypad 22 in SF3.

That is, if the speed is high, enter 1, if the speed is medium, enter 2, and if the speed is slow, enter 3. At SPl, the amount of oil supplied and the rate of oil supplied are displayed numerically on the character display section 23.

9- The clerk receives the customer card from the customer and inserts it into the card reader 2.
Insert into 1. If the reading of the customer card is normal at SF9, a display lamp indicating this is lit at 5P10. This indicator lamp is placed near the character display 23, for example. 5P11'c When refueling becomes possible, SP
At l2, the refueling gun 31 is removed from the weighing machine 3, and the refueling lever (not shown) is fixed at the specified refueling speed to refuel.

When refueling is completed in 5P13, the refueling gun 31 is returned to the metering position 113 in 5P14. Then, in 5P15, a slip is issued and the series of operations ends.

Next, specific operations will be described with reference to FIG. 17. When the staff performs each operation as shown in Figure 6 above,
The CPU 11 makes each determination in 5P21 to 5P24. That is, in 5P21 it is determined whether the weighing machine has been selected, in 5P22 it is determined whether the refueling amount has been set, in 5P23 it is determined whether the refueling speed has been set, and in 5P24 the card is read. Determine whether it was performed successfully. and,
At 5P25, the flip-flop 35 is set.

When the Noritsubu flop 35 is set, a refueling enable signal is given to the motor (not shown). The motor therefore begins to start. However, unless the lever of the refueling gun 31 is operated at this time, refueling will not be performed. In 5P26, the CPU 11 calculates a set value to be set in the counter 33. That is, the No. 1 cloud meter 3 is selected, and the amount of refueling entered from the numeric keypad 22 is 2OL.
If the refueling speed is high, the correction value is 0.0 from the memory 12.
Ask for 6L. Since this correction value is a value per unit of oil supply, it is 0.121 in the case of 20L. Then, the value 19.88Le flow counter 33 is set by subtracting 0.121 from the set oil supply amount 2OL. When the lever of the fuel gun 31 is operated, gasoline is supplied to the fuel gun 31 from the pump. At this time, a refueling pulse is given from the pump to the flow rate counter 33 in response to refueling. Then, the flow rate counter 33 sequentially subtracts the set value based on the refueling pulse. The zero detection circuit 34 detects whether the total ** of the flow counter 33 is zero in 5P29, and resets the flip-flop 735 in 5P30 if it detects that it has become zero. When the flip-flop 35 is reset, a stop command signal is given to the motor. However, since the motor rotates by inertia even if a stop command signal is given, gasoline flows out for 1 if 3 after the stop command signal is given to the motor, as shown in Figure 4. A pulse is provided to flow counter 33. After lI&1llt 3, no refueling pulse is given. This is 5P27
Then, in 8P31, it is determined whether the oil supply amount detector 37 has detected the oil supply amount. When the refueling amount detection 137 determines that refueling has been completed, it provides a detection signal to the CPUII. CPpll applies reset m to flip 70 knob 35 in 5P32. The reason why the Noritsubu flop 35 is reset in 5P32 even though the 7lip 70 knob 35 was reset in 5P30 mentioned above is because the gasoline tank is full by the time the count value of the flow rate counter 33 reaches zero and it is necessary to refuel. This is because when the process is completed, the 7 lip-flop 35 is not reset in the above-mentioned 5P30. CPU11 is flip 70 knob 35
After resetting the flow rate counter 33 at 5P33,
Read the contents of. This is for calculating the oil supply amount in 5P34. In other words, if the gasoline tank becomes full before refueling by the amount set with the numeric keypad 22, the specified amount will not be refilled. Calculate the amount of refueled. Then, based on the calculated result, a slip is issued from the printer 26 in 5P35.

As described above, according to this embodiment, the correction value corresponding to the excess outflow due to inertial rotation of the motor is stored in accordance with each metering rate (3), and the correction value is calculated from the set oil supply amount data. Since the correction value is subtracted and when the subtracted value is refueled, the stop command can be transferred to the motor, so that only the trowel corresponding to the correction value can be rotated by inertia of the motor (therefore, refueling can be performed).

Therefore, regardless of whether the refueling speed is high, medium, or low, it is possible to refuel the set amount of gasoline extremely accurately.

No. 8111 is an illustrative diagram showing another embodiment of the present invention. In the above-mentioned embodiment, the refueling speed is set as a numerical value from the numeric keypad 22. However, in the embodiment shown in FIG. 8, when the refueling speed is switched between high speed, intermediate speed, and low speed using the lever 311 of the refueling gun 31, the correction value stored in the memory 12 is read out in accordance with the switching. It is composed of In other words, the lever 311
The lever 31 is configured to be rotatable around the lever 12.
A wire 313 is connected to the tip of 2.

A slit 314 is provided at the other end of the wire 313.

Therefore, by operating the lever 311, the slit 314 moves in the directions of arrows A and B. slit 31
A light 11315 is provided on one side of 4, and three photoelectric sensors 316 to 3 are provided on the other side.
18 are provided. Slit 314 and photoelectric sensor 316
A shielding plate 319 is provided between the photoelectric sensors 318 and 318 in which holes are formed to correspond to the respective photoelectric sensors. Therefore, when the lever 311 is switched to a low speed, the slit 314 moves in the direction of the arrow claw, and the photoelectric sensor 316 detects the light of light 1 [315]. Furthermore, if you operate the lever 311 and set it to medium speed,
This time, the photoelectric sensor 317 also detects the light from the light source 315.

Further, when the lever 311 is operated, the photoelectric sensor 318 also detects the light from the light source 315.

Correction values are read out from the memory 12 based on detection signals from these photoelectric sensors 316 to 318.

As described above, according to the present invention, a correction value corresponding to the extra outflow amount due to inertial rotation of the motor is stored corresponding to each oil supply speed of a plurality of weighing machines, and When the lubrication amount is set, a correction value is subtracted from the set lubrication amount, and a stop command is given to the motor when lubrication has been completed by the subtracted value. Regardless of the speed, it is possible to supply oil in a very precisely set amount.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of a gas station system according to an embodiment of the present invention. FIG. 2 is an external view showing the operation section of the reader printer. FIG. 3 is a schematic block diagram of one embodiment of the present invention. FIG. 4 is a diagram showing the relationship between the refueling speed and the maximum refueling point. FIG. 5 is a diagram showing a rank table of correction values. FIG. 6 is an operation flow diagram of one embodiment of the present invention. FIG. 7 is also an operation flow diagram. FIG. 8 is a diagram showing another embodiment of the present invention. In the figure, 2 is a reader printer, 3 is a metering machine, 11 is a CPLI, 12 is a memory, 22 is a numeric keypad, 25 is a selection switch, 31 is a refueling gun, 32 is a meter part, 33
34 is a flow counter, 34 is a zero detection circuit, 35 is a flip-flop, 37 is a refueling completion detector, 311 is a lever, 31
5 is a light source, and 316 to 318 are photoelectric sensors. Kabutoiz No. Zaki! Sugar'3ε 4th-[ffi Corpse 51!1. ”' Procedural amendment dated October 1, 1980, Commissioner of the Japan Patent Office1, Indication of the case, Patent Application No. 126390 of 1982, Name of the invention, Refueling control device for a gas station system3, Amendment. Relationship with the patent applicant □ Address 10 Hanazono Tsuchido-cho, Ukyo-ku, Kyoto City Name (2)
94) Tateishi Electric Co., Ltd. Representative Takao Tateishi 4, Agent Address 612-3-9 Tenjin, Kita-ku, Osaka Yachiyo Daiichi Pill 6, Detailed Description of the Invention in the Specification Subject to Amendment - 7, Amendment Contents (1) [Correction value is corrected to 0.06J for IL, 06 J k r correction value on page 8, line 15 of the specification 0 (2) Lines 17 to 20 of page 8 of specification 11 I will stop at the sentence below. Therefore, for example, when refueling 20L of gasoline at high speed, if you give a stop command to the motor when 19.94L of gasoline is fully refilled, then! I! Refueling by the inertia rotation of the 0.06Lv motor (3) Light #, I, page 11, lines 12 to 15 are corrected to the following sentence. 0. Correct the value Q, 0614rH from the entry. Then, 0.06L was subtracted from the set oil supply amount of 20L @ 19.9
4 or more

Claims (3)

[Claims] (1) In a gas station system that includes multiple measurements,
A refueling amount control device for controlling the refueling of a preset amount of oil by one of the plurality of measuring machines, wherein each of the measuring machines includes a pump for refueling the oil;
A motor is provided to drive the pump and is capable of switching the oil supply speed to multiple stages, and when a stop command is given, rotates by inertia according to each oil supply speed, and further sets the oil supply speed. refueling amount setting means for specifying one of the plurality of measurements, a refueling speed specifying means for specifying the refueling speed for each of the plurality of measurements, and a refueling amount set by the pump. a counting means for counting the amount of inertia of the motor at each refueling speed of each of the measuring machines;
A storage means for storing each correction value corresponding to the amount of oil spilled by l@, and a storage means for storing each correction value corresponding to the amount of oil spilled by l@, and a storage means for storing each correction value corresponding to the amount of oil spilled according to A correction value corresponding to the refueling speed is read from the storage means, the correction value is subtracted from the set refueling amount, and the subtracted value is set in the counting means, and the counting means is a numerical value corresponding to the subtracted value. A refueling amount control device in a refueling station system, comprising a control means for applying a stop command signal to the motor in response to counting of the refueling amount. (2) The refueling amount w4Il@ setting in the refueling station system according to claim 1, wherein the refueling amount setting means includes a keyboard, and the refueling speed specifying means is also used by the keyboard. (3) Refueling #I in the claimed system, wherein each of the weighing machines includes a refueling gun, and the refueling speed designation means is a refueling bar provided on the refueling gun for switching the refueling speed into a plurality of stages. One device.