JPH0553214B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a gas station that sells oil such as gasoline and diesel oil.

[Prior Art] As is well known, lorries transport oil from an oil depot to a refueling station, and then supply the oil to an underground tank at the refueling station. At that time, the driver of the lorry climbed on top of the hatch, opened the hatch, and visually inspected the inside to see if all the oil in each hatch of the lorry had leaked out. In addition, one lorry usually contains different types of oil for each hatch and must supply the oil to the underground tank of the corresponding oil type, so care must be taken not to make incorrect connections. Specified locks, etc. were used for such connections.

It is dangerous for both the driver and the workers to climb onto the hatch, and when visually checking whether all the oil in the hatch has leaked out, it is difficult to see if the amount of oil in the hatch is low. In this case, since the head becomes smaller, the amount of water flowing out also decreases, and it may be mistaken to think that the amount has completely disappeared.

JP-A-58-106422 describes a technique for displaying the output of a sensor that detects the oil storage status of a plurality of oil storage tanks on a display device in an office. However, such known techniques cannot prevent misidentification of the oil type.

[Issue to be solved]

Therefore, an object of the present invention is to provide a gas service station that can not only detect residual oil in the hatch of a lorry, but also accurately match the type of oil loaded on the lorry with the type of oil in the underground tank of the gas station. is to provide.

[Means to solve problems]

According to the present invention, the fueling station is provided with a liquid level sensor in each hatch, and refuels an underground tank from a lorry provided with a connector for transmitting a liquid level signal connected to an output terminal of the liquid level sensor, The underground tank is provided with an underground tank refueling port having a refueling port sensor that outputs a signal when a hose for unloading the lorry is connected, and a control device is provided in the office, and the control device is connected to the lorry. A temporary storage unit connected to the liquid level signal transmission connector of the lorry and stores the number of each hatch on the lorry and the signal from its liquid level sensor, a card reader for inputting the oil type of each hatch on the lorry, and a card reader for each of the underground tanks. A tank data storage unit stores the oil type corresponding to the signal output from the fuel filler sensor, and a change in the signal from the filler port sensor and the hatch liquid level signal is stored in the temporary storage unit and the tank data storage unit. Based on the oil type in each hatch and the oil type in the underground tank, the oil type whose liquid level signal has changed is compared with the oil type in the underground tank based on the fuel filler port sensor, and if there is a difference, an alarm is activated. It consists of several parts.

[Explanation of effects]

Therefore, when the driver of the lorry reads the card with a card reader, the driver of the lorry will be able to read the oil type according to the hatch of the lorry.
Data such as the amount of oil is input, and when the connector is connected, a signal from the fuel filler sensor is input to the control section, and the oil type stored in the tank data storage section is stored in the temporary storage section.

Next, the driver performs a refueling operation, and as the oil refilling operation lowers the liquid level in the hatch, the type of oil is temporarily stored in the storage section. Then, the control unit compares the oil types stored in the temporary storage unit, and if they do not match, the alarm notifies the driver, so the driver only needs to refuel.

As described above, according to the present invention, it is possible to judge whether or not the underground tank is properly refueled using the detection results of the lorry's liquid level sensor and the loaded oil data, so that it can be determined whether or not the underground tank is properly refueled. It is possible to prevent oil from being mixed up by mistake, and since the presence or absence of residual oil in the hatch can be determined by the liquid level sensor, inconveniences such as overflowing can be prevented the next time it is loaded. As described above, according to the present invention, oil supply efficiency can be improved.

[Example] Next, the present invention will be specifically described with reference to the accompanying drawings. In FIG. 1, 1 is a lorry, and this lorry 1 is provided with a plurality of hatches 2a, 2b, 2c, and the bottoms of each hatch 2a, 2b, 2c are connected to a common pipe through bottom valves 4a, 4b, 4c, respectively. 3
is connected to. These bottom valves 4a, 4b, 4c are
Rods 6a, 6 are opened and closed by opening/closing handles 5a, 5b, 5c on the tops of hatches 2a, 2b, 2c, respectively.
It is designed to be opened and closed by rotating b and 6c. Hatch lids 7a, 7b, 7c are provided above each hatch 2a, 2b, 2c. A liquid level sensor 8a, 8b, 8c is provided in each hatch 2a, 2b, 2c. These liquid level sensors 8a, 8b, 8c are preferably of a capacitance type, and a connector 9 is connected to their output ends. The wire W to which this connector 9 is connected is wound around a reel R so that it can be connected to a connector 10 provided at the gas station.
This connector 10 is a control device 1 installed in the office.
2 and thus each liquid level sensor 8
Signals from a, 8b, and 8c are transmitted to the control device 12. In the figure, reference numeral 13 denotes a card reader, and the driver of the lorry has a card from which the vehicle number, oil type (by hatch), oil amount, etc. can be read. Further, 14 is an alarm device that issues an alarm as described later.

Underground tanks 15a, 15b, and 15c for regular gasoline, high-octane gasoline, and light oil, for example, are buried underground at the site of the gas station, and each of these tanks is connected to a respective connecting portion 17.
Conduction pipes 16a, 16 to a, 17b, 17c
b, 16c. On the other hand, a connecting part 19 is provided on the outlet side of the common pipe 3 of the lorry 1 via a main valve 20, and this connecting part 19 is connected to the hose 1.
8 can be connected to each other via this hose 18 to connection parts 17a, 17b, and 17c of each underground tank.

Each connecting portion 17a, 17b, 17c is provided with a fuel filler sensor 21a, 21b, 21c, respectively, and signals from each of these sensors are sent to the control device 12.
It is now entered into . As shown in FIG. 2, the control device 12 includes a card data storage section 12b that stores information read by the card reader 13, and each underground tank 15a, 15b, 1
5c (for example, tank 15a - regular, tank 15b - high octane, tank 15c - light oil) tank data storage section 12d, coupling signals from each fuel filler sensor 21a, 21b, 21c and each liquid level sensor 8a , 8b, 8c, and a control section 12a having various judgment functions.

Next, the operation will be explained mainly with reference to FIG.

When the card 13a of the driver of Lorry 1 is read with the card reader 13 installed in the office 11 of the gas station, data such as oil type and oil amount for each hatch (for example, hatch 2a - regular 2KL, Hutch 2b-high octane-1KL, Hutch 2c-light oil-2KL) are stored in the card data storage section 12b of the control device 12. Next, Loli 1
Connect the connector 9 to the connector 10 at the gas station,
When the hose 18 is connected to the connection part 17a of the underground tank 15a and the connection part 19 of the lorry 1, a coupling signal from the fuel filler sensor 21a is transmitted to the control part 1.
2a (step S1), the control unit 12a determines the fuel filler port sensor 21a, that is, the oil type regulation of the tank 15a stored in the tank data storage unit 12d, and stores it in the temporary storage unit 12c (step S2). ). In addition, the connecting part 17
b or 17c (step S)
3, S5), and the oil type is stored in the temporary storage section 12c (steps S4, S6).

Next, the driver opens the bottom valve 4a and the main valve 20 to start refueling the underground tank 15a.

As a result, the liquid level data sent from the liquid level sensor 8a decreases (step S7), and the control unit 12
At step a, the oil type regulation of the liquid level sensor 8a, that is, the hatch 2a, stored in the card data storage unit 12b is determined, and the oil type is stored in the temporary storage unit 1.
2c (step S8). In addition, bottom valve 4
When b or 4c is opened, the data of liquid level sensor 8b or 8c decreases (steps S9 and S1).
1), the oil type is memorized (step S10,
S11).

In the control unit 12a, both oil type signals stored in the temporary storage unit 12c are compared (step S13),
If they do not match, the annunciator 14 will notify you of this (step S14). As a result, the driver closes the bottom valves 4a, 4b, 4c or the main valve 20 to prevent oil mixture. Closing of the valve may be performed automatically. If they match, the refueling operation continues, and when the data from the liquid level sensor falls to zero (step S15), the alarm 14 is activated to notify the end of refueling, and the liquid level sensor in the temporary storage section 12c is Erase the memory of oil type based on (Step S
16).

When the driver removes the hose 18 from the coupling part 17a, the coupling signal disappears (step S1).
7) The memory of the oil type based on the coupling signal in the temporary storage section 12c is erased (step S18).
In this way, other underground tanks are also refueled.

When all the refueling is finished, the driver removes the connector 9 from the connector 10.

Next, referring to FIG. 4, the operation for making the control device 12 work normally will be explained.

Before connecting connectors 9 and 10 (step S
20) Connect the hose 18 to the connection part (step S)
21), activate the alarm 14 and connect the connector 9,
Promote connection of 10 and prevent danger. Also, when all the refueling is finished and connectors 9 and 10 are removed (step S
23) The data stored in the card data storage section 12b is erased (step S24).

〔Effect of the invention〕

As described above, according to the present invention, it is possible to detect which hatch of oil has been unloaded based on the detection result of the liquid level sensor, and by comparing the oil type with the oil type in the underground tank, it is possible to prevent oil mixture.

In the case of a lorry, oil is loaded and unloaded from each hatch using a common pipe, so the type of oil can be reliably identified by detecting which hatch of oil is being unloaded based on the signal from the liquid level sensor.

In addition, the presence or absence of residual oil in the hatch can be determined by the signal from the liquid level sensor, and spillage can be prevented during the next loading operation.

As described above, according to the present invention, the oil supply operation from the lorry can be performed efficiently and oil mixing can be reliably prevented.

[Brief explanation of the drawing]

Figure 1 is a side view showing one embodiment of the present invention, Figure 2 is a side view showing one embodiment of the present invention;
The figure is a block circuit diagram thereof, and FIGS. 3 and 4 are flowcharts for explaining the operation, respectively. 1...Lori, 2a, 2b, 2c...Hatsuchi,
3...Common pipe, 4a, 4b, 4c...Bottom valve, 5
a, 5b, 5c...opening/closing handle, 8a, 8b,
8c...Liquid level sensor, 9, 10...Connector, 1
1... Office, 12... Control device, 13... Card reader, 14... Alarm, 15a, 15b, 1
5c...Underground tank, 17a, 17b, 17c...
...Connection part, 18...Hose, 19...Connection part, 2
0... Genben.

Claims (1)

[Claims] 1 A refueling station where an underground tank is refueled from a lorry provided with a liquid level sensor in each hatch and a connector for transmitting a liquid level signal connected to an output terminal of the liquid level sensor, An underground tank refueling port is provided with a refueling port sensor that outputs a signal when a hose for unloading the lorry is connected, and a control device is provided in the office, and the control device transmits a liquid level signal of the lorry. a temporary storage unit that is connected to the connector and stores the number of each hatch on the lorry and a signal from its liquid level sensor; and a card reader that inputs the type of oil for each hatch on the lorry;
A tank data storage unit that stores the oil type corresponding to the signal output from each fuel filler sensor of the underground tank, and changes in the signal from the fuel filler sensor and the liquid level signal of the hatch, the temporary storage unit, and tank data. Based on the oil type of each hatch stored in the storage unit and the oil type of the underground tank, the oil type whose liquid level signal has changed is compared with the underground tank oil type based on the fuel filler port sensor, and if there is a difference, an alarm is activated. A refueling station characterized by comprising: a control unit that operates the fuel supply station;