JP2000079997A - Gas-station management device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To check the oil kind of an oil feed nozzle in self-service oil feeding. SOLUTION: The gas-station management device comprises indoor equipment 11, and outdoor equipment 12 for feeding oil. As the indoor equipment 11, a gas-station controller 13, a checking monitor 14, a POS terminal machine 15, an interphone 16, etc., are provided. On the display device of the gas-station controller 13, the result of the judgment of an oil kind is shown in a display area provided for oil feed data. Therefore, it prevents simultaneous display of a large amount of data in a narrow display area, makes it easy for an attendant at a gas station to check the contents of the display on the display device and grasp the statuses of all the metering machines 171-17n. Thus, even if an error in oil kind is made on one of the metering machines 171-17n, the attendant at the gas station promptly checks the result of the judgment of the oil kind from the display on the display device of the gas-station controller 13 and lets a driver know that the oil kind of an oil feed nozzle 27 is not the one that was intended.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a service station management apparatus, and more particularly to a service station management apparatus suitable for managing a self-refueling service station.

[0002]

2. Description of the Related Art For example, a plurality of weighing machines are installed in a gas station or the like. Each weighing machine is provided with a refueling nozzle for regular gasoline, high-octane gasoline, and light oil. In such a refueling station, when a customer's vehicle arrives for refueling, the driver himself inserts a refueling nozzle of an oil type according to the engine specification into the fuel tank refueling port and is stored in an underground tank. The so-called self-service refueling of supplying the fuel oil to the fuel tank has been promoted.

[0003] When self-service refueling is performed at a gas station, a driver who enters the gas station moves to the fueling area of the weighing machine without the guidance of an operator, stops the vehicle in front of the weighing machine, and drives the vehicle. Perform the refueling work by himself. Each weighing machine is managed by a POS system. When refueling data such as an oil type to be refueled, a refueling amount, and a payment method is input by a setting device, a refueling permission signal is output from the POS terminal and the refueling is performed. Refueling at points becomes possible. Thereafter, when the refueling nozzle of the oil type to be refueled is removed from the nozzle hook, the pump of the oil type is started, and when the refueling is completed and the refueling nozzle is returned to the nozzle hook, the pump stops.

In the POS system, when refueling data is transmitted from the weighing machine to the POS terminal after refueling is completed,
A slip containing refueling data such as refueling amount, refueling oil type, refueling fee, etc. is issued from a POS terminal installed at a refueling office or the like for refueling fee settlement. Then, the customer who has completed self-refueling pays the refueling fee described on the slip at the checkout office of the office and leaves the refueling station.

[0005] Further, since each metering machine is usually provided with a plurality of refueling nozzles of different oil types such as regular gasoline, high-octane gasoline, light oil, etc., the driver does not mistake the oil type to be supplied to the fuel tank. It is necessary to take care. For example, if the oil type to be refueled input by the driver with the setting device does not match the oil type of the refueling nozzle taken out by the driver, a different oil type mixing accident (contamination) occurs in the fuel tank. Would.

[0006] Therefore, in a conventional gas station management apparatus installed in a gas station office with the self-service refueling, the oil type to be refueled input by the setting device and the oil of the fuel nozzle taken out by the driver are taken. Display both species (eg CR
(T display) so that the staff at the gas station can check it.

[0007]

However, in the gas station management apparatus having the above-described display function, if the driver himself / herself mistakes the oil type to be input to the setting device, the gas station management apparatus is not operated. Since the oil types displayed on the display unit match, it is not possible to prevent a different oil type mixing accident (contamination).

Therefore, in a weighing machine that performs self-service refueling, it has been studied to add an oil type determination function for determining the type of oil in the fuel tank to prevent an accident of mixing different types of oil. The oil type determination function is configured to suck the vapor (oil vapor) remaining in the fuel tank from the discharge pipe of each refueling nozzle, detect the concentration of the vapor by an oil type sensor, and perform an oil type determination process. I have.

Therefore, even if the driver inputs the oil type to the setting device, the oil type of the refueling nozzle inserted into the refueling port of the fuel tank and the fuel type are determined based on the oil type determination result using the oil type sensor. By judging whether or not the remaining oil types match, an accident of mixing different oil types in the fuel tank can be prevented. However, if the driver mistakenly inserts the oil type to be refueled and inserts a refueling nozzle of another oil type into the fuel port of the fuel tank, the oil type determination function does not start the refueling pump and the driver starts refueling. I don't know if not.

In order to cope with such a problem, the refueling data (oil type,
(Refueling amount, refueling amount, etc.), and the oil type determination result for each weighing machine must also be displayed at the same time to inform the staff at the refueling station of the refueling status of each weighing machine. Thus, the staff at the refueling station confirms from the display contents that the refueling has been stopped due to an incorrect oil type, and inserts a refueling nozzle of the oil type that matches the oil type of the fuel tank into the refueling port. Can be instructed to the driver.

[0011] However, in the display unit of the gas station management device,
If the refueling data of a plurality of weighing machines and the oil type determination result of each weighing machine are displayed at the same time, a large number of data will be mixedly displayed in a narrow display area of the display unit. For this reason, it is difficult for the staff at the gas station to accurately grasp the status of all the weighing machines from the display unit of the gas station management device. There is a problem in that it is not possible to respond, and instructions to the driver are delayed.

As described above, when the driver does not notice that the oil type of the oil supply nozzle inserted into the oil supply port is wrong,
The vehicle stopped at the refueling point closes the refueling point for a long time without being able to refuel, and the refueling efficiency of the refueling station is reduced. Then, the present invention solves the above-mentioned problems,
It is an object of the present invention to provide a service station management device configured to easily recognize a refueling situation in a service station where self-service refueling is introduced.

[0013]

The present invention has the following features to solve the above-mentioned problems. The present invention provides a data receiving unit that receives oil type determination data transmitted from a weighing machine provided with an oil type determination function, and oil supply data including an oil type and an oil amount of an oil nozzle used for oil supply, and the data receiving unit. A display unit that displays the oil type and the amount of oil of the oil data received by the receiving unit for each oiling point of each weighing machine, and the oil type determination data obtained by the oil type determination result by the oil type determination function. And display control means for displaying the abnormal data in a display area of the display section for displaying oil type data in the case of abnormal data.

Therefore, according to the present invention, the oil type determination data obtained from the oil type determination result by the oil type determination function provided in the weighing machine is displayed in the display area for displaying the refueling data on the display unit. This prevents a large number of data from being displayed simultaneously in the narrow display area of the display unit, and makes it easier for the staff at the gas station to check the contents displayed on the display unit and to grasp the status of all the weighing machines. Therefore, for example, even if the oil type error occurs in one of the multiple weighing machines,
The staff at the refueling station can immediately confirm the oil type determination result from the display on the display unit and instruct the driver that the oil type of the refueling nozzle is incorrect.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram of an embodiment of a gas station management apparatus and a weighing machine according to the present invention. The gas station management apparatus of the present invention generally includes an indoor device 11 installed indoors such as an office of a gas station, and an outdoor device 12 for refueling. As the indoor equipment 11, a gas station control device 13, a monitoring monitor 14, a POS terminal 15, an interphone 16, and the like are provided.

Further, as the outdoor device 2, a plurality of weighing devices 17 ₁ to 17 _n for self lubrication, each weighing machine 17 _1-17
Self-service unit for setting the oil supply process _n (setter) 18 ₁ ~18 _n, the monitoring camera 19 ₁ ~ 19 _n for monitoring each weighing machine 17 ₁ to 17 _n are provided. FIG. 2 is a configuration diagram showing a connection between the indoor equipment 11 and the outdoor equipment 12.

As shown in FIG. 2, the gas station control device 1
3, POS terminals machine 15 and the weighing machine 17 ₁ to 17 _n, the self-service unit 18 ₁ ~ 18 _n and SS-LAN
(Local Area Network) 20 and 21 are connected. Therefore, the gas station control device 13
Weighing machines 17 _{1 to} 17 _n , self-service unit 18 ₁
１８18 _n are monitored, data is transmitted and received regarding refueling, and a settlement process is performed.

The service station control device 13 is provided with a monitoring monitor.
14 and serial communication via the RS232C interface.
The monitoring monitor 14 is divided by the communication line 22
And switching control of the display position. In addition, each weighing machine 17₁
~ 17_nSent to the gas station control device 13 from the
Data), for example, when the refueling nozzle is
The status, the refueling nozzle number, and the amount of refueling during refueling are displayed.
You. Conversely, each weighing machine 17 ₁~ 1
7_nThe message (signal) sent to
and so on.

The self-service units 18 ₁ to 18 ₁
8 The telegram (transmission data) sent to the filling station control device 13 from _n, the type of oil and oil absorption customer set, there is information such as payment method. The telegram (transmission data) transmitted from the gas station control device 13 to the POS terminal 15 includes, for example, a signal indicating that fueling has been completed. POS terminal 1
5 receives the refueling end signal from the refueling station control device 13, the payment processing becomes possible.

The monitoring monitor 14 displays only four images of the refueling points of the weighing machines 17 _{1 to} 17 _n picked up by the monitoring camera 19 installed outdoors. The surveillance cameras 19 _{1 to} 19 _n perform setting operations of the self-service units 18 ₁ to 18 _n and the weighing machines 17 ₁ to 17 _n.
A video camera for copy the customer how the refueling operation or the like of 17 _n. The gas station control device 13 includes a monitoring camera 19 ₁
The refueling point at which the refueling operation is being performed is selected from the images captured by 〜19 _{n, and} only the location where the refueling operation is being performed is displayed on the monitor 14.

The interphone 16 is provided by a customer who is performing self-refueling work to the self-service units 18 ₁ to 18.
_n method setting or weigher 17 ₁ to 17 _n question how to operate like, used when promote communication such answers. Each weighing machine 17 ₁ to 17 _n, as well as performs refueling pumps up oil solution stored in underground tanks (not shown) with the built-pump (not shown), is a device that measures and outputs the lubrication amount . Further, each of the weighing machine 17 ₁ to 17 _n
Are provided with refueling points on both sides, and four refueling nozzles 27a are provided for each oil type corresponding to each refueling point.
To 27d and refueling hoses 28a to 28d are provided.

Each of the refueling nozzles 27a to 27d is
Nozzle hooks 29a to 2 provided on side surfaces of 7 _{1 to} 17 _n
9d, the nozzle hooks 29a-2
It is removed from 9d and inserted into the filler port of the vehicle. Each of the nozzle hooks 29a to 29d has a respective lubrication nozzle 27a.
Nozzle switch 3 for detecting hang-up of ~ 27d
0a to 30d are provided.

The nozzle switches 30a to 30d are provided inside the nozzle hooks 29a to 29d so as to be turned on by being pressed by the fueling nozzles 27a to 27d.
When it is hung on 9a-29d, it is hidden and invisible. When the built-in pump of each of the weighing machines 17 _{1 to} 17 _n receives the refueling permission signal transmitted from the gas station control device 13, the built-in pump of the permitted oil type operates to pump up the oil liquid in the underground tank. The vehicle can be refueled.

The self-service units 18 ₁ to 18 ₁
8 _n incorporates an intercom slave unit 23, a speaker 24 for audio output, a setting unit 25, and a printer 26. The intercom slave unit 23 is mutually connected to the interphone 16 via a communication cable, and can exchange conversation with a staff member at a gas station located indoors. Each of the self-service units 18 ₁ to 18 _n is provided with a pair of an intercom slave unit 23, a speaker for audio output 24, a setting unit 25, and a printer 26.
_It has a configuration corresponding to refueling points provided on both sides of _{1 to} 17 _n .

The audio output speaker 24 is, for example, an oil supply nozzle 2 of an oil type different from the oil type set by the setting unit 25.
When the nozzle 7 is removed from the nozzle hook 29, a sound "Nozzle is wrong" is output to notify the customer that refueling is not possible. The setting unit 25 is a device for setting the refueling conditions including data such as the type of oil to be refueled and the amount of refueling by inputting the operation by the customer himself for each refueling point. And
The refueling conditions set by the setting unit 25 are transmitted to the gas station control device 13.

FIG. 3 is a block diagram showing the configuration of the gas station control device 13. As shown in FIG. As shown in FIG. 3, the refueling station control device 13 manages refueling data from each of the weighing machines 17 _{1 to} 17 _n and the self-service units 18 ₁ to 18 _n, and displays a refueling status, refueling information, and the like. A device (display control means) 35, a display device (display unit) 36 composed of a CRT or LCD display, an input device 37 composed of a touch panel or the like provided on the screen of the display device 36,
It comprises a storage device 38 such as a magnetic disk device, a serial communication interface (data receiving unit) 39, and a parallel input / output interface 40.

The serial communication interface 39 receives the oil type determination data of each of the weighing machines 17 _{1 to} 17 _n and the refueling data relating to refueling via the self-service units 18 ₁ to 18 _n . In addition, the storage device 38 stores the oil type of the oil supply data set by the setting unit 25 and the oil supply nozzle 27 detected by the nozzle switches 30a to 30d.
A control program for comparing oil types with each other, a control program for notifying oil type mismatch based on the comparison result, and a control program for displaying an oil type determination result to be described later in a display area of refueling data are stored.

Therefore, the arithmetic unit 35 of the refueling station control unit 13 displays the oil type determination result by the oil type determining function of the weighing machine 17 in the refueling data display area of the information display area A3 displayed on the display unit 36. , Narrow information display area A3
Can be prevented from being displayed at the same time, and the staff at the gas station can easily check the contents displayed on the display device 36.

Therefore, even if an oil type error occurs in one of the plurality of weighing machines 17 _{1 to} 17 _n , the staff at the gas station immediately displays the oil type determination result on the display device 36 as described later. Can be instructed to the driver that the oil type of the refueling nozzle 27 is wrong. FIG. 4 is a diagram illustrating a display example of an image displayed on the display device 36.

As shown in FIG. 4, an image 45 displayed on the screen of the display device 36 has an icon A1 similar to the configuration of the entire gas station, that is, an icon A1 similar to the shape of the weighing machine 17 viewed from above. Are display examples arranged according to the arranged layout. Further, the image 45 displayed on the display device 36 is displayed in a layout that matches the actual arrangement pattern of the weighing machines 17 _{1 to} 17 _n . Also,
The icon A1 of each of the weighing machines 17 _{1 to} 17 _n displayed on the display device 36 is displayed in a shape of the actual weighing machine viewed from above. Then, on both sides of the weighing machine 17 ₁ to 17 _n, the vehicle is provided with two each display area A5 of the refueling point that allows refueling parked. Therefore, each weighing machine 1
Refueling points are located on both sides of the icon A1 of 7 _{1 to} 17 _n.
No. 1 to No. 6 are set, and the numbers 1 to 6 corresponding to the refueling points No. 1 to No. 6 are also displayed.

The display device 36 also displays each refueling point.
Status (refueling, waiting, stop secondary) of each weighing machine 17 ₁ to 17 _n for each No.1~No.6 status display region A2 to inform
In addition, an information display state A3 indicating vehicle information (refueling oil type, refueling amount, etc.) is displayed. Thus, the state of each refueling point No. 1 to No. 6 can be grasped at a glance by the display on the display device 36.

In the display example of the display device 36, the refueling
Kerosene-specific measurement so that point No. 7 can be supplied with kerosene
The machine icon A4 is displayed. In addition, each weighing machine
11 ₁~ 11_nTo change the display color according to the state of
Display contents that are easier to understand and hard to make mistakes
can do. In this embodiment, the communication control device
14 shows up to 3 data for the same refueling point
Set to be managed as shown
I have. For example, after refueling, move to the touch-up area, etc.
Even if the payment is delayed due to some kind of work, the refueling
At the point, the next customer can refuel. With this system
Is also able to refuel up to the next third person.

On the lower side of the image 45, a menu button 4
6, icons of a camera button 47, a pump button 48, a permission button 49, and a settlement button 50 are displayed. The menu button 46 switches the function of a button described later. Display device 36
Is provided with a touch panel, so that once the menu button 46 is pressed once, a store closing button (not shown) is displayed at the right end of the screen. When the menu button 46 is pressed again, the image of FIG. 4 is displayed.

When the camera button 47 is pressed, the display on the monitoring monitor 14 is switched. For example, when the camera button 47 is pressed after touching any of the refueling points 1 to 7 to be monitored on the screen, an image of the refueling point to be monitored is displayed on the monitoring monitor 14. Also, the pump button 48
This is an operation button for stopping or restarting refueling at each refueling point. The function of the permission button 49 is an operation button for instructing refueling permission as described later.

The settlement button 50 is an operation button for transmitting refueling data to the POS terminal 15 after refueling is completed. Here, an operation procedure of self-service refueling in the present embodiment will be described. FIG. 5 is a flowchart for explaining a refueling procedure between the respective devices when performing self-refueling.

As shown in FIG. 5, the customer arriving at the gas station moves to an empty fueling point among fueling points No. 1 to No. 8 in (operation 10). Then, the vehicle is stopped at an empty refueling point. Next (Action 1)
In 1), the refueling conditions such as the type of oil to be refueled, the amount of refueling, and the payment method are set using the setting unit 25 of the self-service unit 18 installed at the refueling point.

In the next (operation 12), after the setting is completed, the customer removes the fueling nozzle 27 from the weighing machine 17 and inserts the discharge pipe of the fueling nozzle 27 into the fueling port of the vehicle. Then, in (operation 13), refueling is terminated, and the refueling nozzle 27 is returned to the weighing machine 17. Further, the customer carries the temporary slip issued from the printer 26 in (operation 14) and goes to a checkout station to settle the refueling fee. Then, in (operation 15), the customer leaves the gas station.

The self-service unit 18 executes the following processing in conjunction with the customer (operations 10 to 15). That is, when the customer enters the refueling point, the self-service unit 18 enters a standby mode of waiting for a setting start in step S11 (hereinafter, “step” is omitted). In this case, the weighing machine 17 may be provided with some vehicle detection device, and the signal may be received by the self-service unit 18. However, the setting may be awaited when the previously refueled vehicle leaves the refueling point.

When the customer has completed the setting operation, S1
In step 2, the set value is transmitted to the control device. The printer 26
In step 13, a print command from the control device is received, and a temporary slip on which a slip number and the like are printed is issued in accordance with a set format. In addition, the gas station control device 13 executes the following processing in conjunction with the customer (operations 10 to 15). That is, when various settings are transmitted from the setting unit 25 of the self-service unit 18 in S14, the refueling station control device 13 gives refueling permission to the weighing machine 17.

In the next S15, when the refueling end and the refueling amount are transmitted from the weighing machine 17, the total amount is calculated. Then, in S16, the amount, the slip number, and the like are transmitted to the printer, and printing is instructed. On the other hand, in the weighing machine, when the refueling permission is obtained from the refueling station control device 13 in S17, the waiting time starts from the refueling start. In S18, when the customer starts refueling, the pump is operated, and fuel is supplied from the refueling nozzle 27 to the fuel tank of the vehicle. In the next S19, when the customer finishes refueling, the pump is stopped, and the refueling end and the refueling amount are transmitted to the gas station control device 13.

When refueling is completed, the customer sends refueling data such as a refueling point number or a weighing machine number, an additional number (a slip number), a date and time, an oil type, a refueling amount, and a refueling amount from the printer 26 of the self-service unit 18. Take the temporary slip with displayed and move to the checkout office in the office. Thus, the operation procedure for performing self-fueling is completed. The settings input by the setting unit 26 of the self-service unit 18 are simultaneously displayed on the display device 36 of the gas station control device 13. Therefore, the staff of the gas station, by the display device 36 of the gas station control device 13 installed in the office of the gas station,
It is possible to confirm the presence and the settings for each weighing machine 17 ₁ to 17 _n of the set.

Further, the staff at the gas station receives the temporary slip from the fueling customer, selects data corresponding to the contents from the screen displayed on the display device 36 of the gas station control device 13,
The payment operation is performed by the input device 37. Thus, the refueling data is transmitted from the gas station control device 13 to the POS terminal 15. As a result, a slip is issued from the printer (not shown) of the POS terminal 15, and the slip is handed to the customer in exchange for the refueling fee.

When the refueling operation and the payment of the refueling fee are performed in this manner, the display device 36 of the refueling station control device 13 includes:
4 as shown in a practically each weighing machine 11 ₁ to 11 ₄ each weighing devices 11 ₁ to 11 substantially in the same layout as the arrangement pattern of
The icon A1 of ₄ is displayed, and the status display A2 and the refueling status A3 of the vehicle are displayed for each refueling point, so that the refueling data (oil type, refueling amount, etc.) of the refueling point described in the simple slip is displayed. ) Can be easily checked.
Further, the state of each weighing machine 11 at the gas station is determined by the gas station control device 1.
The status of each refueling point can be monitored by the layout image 25 displayed on the third display device 36.

FIGS. 6A to 6H are views for explaining changes in the display example of the refueling points displayed on the screen of the display device 36. FIG. Before the customer's vehicle arrives at the refueling point, as shown in FIG.
Shows "Waiting". Next, when the customer stops the vehicle at the refueling point and makes settings with the setting unit 25 of the self-service unit 18, as shown in FIG.
The settings are displayed in the refueling status area A3.

Subsequently, when the setting operation by the setter unit 25 is completed and the refueling nozzle 27 corresponding to the set oil type of the metering machine 17 at the refueling point is removed from the nozzle hook 29, FIG. ), The status display area A2
Is displayed, the display color of the refueling point changes from "white" to "blue", and the buzzer sounds shortly to inform the staff of the refueling station that the refueling preparation is completed.

Then, the staff at the gas station reads the monitor 14
Is checked, and if it is determined that refueling can be performed without difficulty, the permission button 46 displayed on the display device 36 is pressed. Thereby, the display device 36
As shown in FIG. 6 (D), the display color of the refueling point display area A5 returns to “white”, “refueling” is displayed in the state display area A2, and the refueling status is displayed. The oil type “gasoline” determined by the oil type determination function is displayed in the area A3. Also, during refueling,
As shown in (E), "refueling" is displayed in the state display area A2, and the current accumulated refueling amount is displayed in the refueling state area A3.

When the full refueling at the refueling point is completed and the refueling nozzle 27 is returned to the nozzle hook 29 of the weighing machine 17, as shown in FIG. 6 (F), "standby" is displayed in the state display area A2. Is displayed, and the refueling status area A
The display color of No. 3 changes from "white" to "green" to indicate that refueling has been completed. This completes a series of refueling processes.

Here, the setting operation by the setting unit 25 is completed, and as shown in FIG.
In the state where the setting contents are displayed, if the user picks up the refueling nozzle 27 of the oil type different from the oil type set by the customer himself or the oil type nozzle 27 of the oil type different from the oil type of the fuel tank to be refueled, The gas station control device 13 is a display device 3
6 indicates that the nozzle is incorrect. That is, as shown in FIG. 6 (G), the display color of the refueling point display area A5 of the display device 36 changes from “white” to “red” and the refueling nozzle is displayed in the refueling oil type display field of the refueling information area A3. A "different oil type" indicating that the oil type of the fuel tank 27 is different from the oil type of the fuel tank is displayed, and the buzzer is intermittently sounded to inform the staff of the refueling station that the oil type of the refueling nozzle 27 is different.

If the output of the oil vapor concentration sensor 67, which will be described later, is not sufficient and the oil type determination result is an error,
As shown in FIG. 6H, the display color of the refueling point display area A5 of the display device 36 changes from “white” to “red” and the oil vapor concentration sensor is displayed in the refueling oil type display column of the refueling information area A3. A "different confirmation" indicating a detection error by 67 is displayed, and the buzzer is sounded intermittently to notify the staff of the gas station of the oil type detection error.

If the customer does not notice that he has picked up a refueling nozzle 27 that is different from the oil type set by the customer himself, the staff of the refueling station operating the refueling station control device 13 will be described with reference to FIG.
After confirming the display on the display device 36 shown in (A) to (H), the intercom 16 is used to ask the customer from the audio output speaker 24 of the self-service unit 18 "Please take the correct oil type nozzle." Such an instruction is given by voice.

Then, the customer noticed that he / she had taken out the oil supply nozzle 27 of the set oil type or the oil type different from the oil type of the fuel tank, and returned the wrong oil supply nozzle 27 to the nozzle hook 29 of the weighing machine 17. Then, if the refueling nozzle 27 of the correct oil type is retaken from the nozzle hook 29 of the weighing machine 17, the refueling station control device 13 displays the status display A2 on the screen of the display device 36 as shown in FIG. Is displayed, the display color of the refueling point changes from "white" to "blue", and the buzzer sounds shortly to inform the staff of the refueling station that the refueling preparation is completed.

Thereafter, the display processing is executed as shown in FIGS. 6C to 6F in the same manner as in the normal procedure described above. Next, the oil type determination function of each weighing machine 17 will be described. FIG. 7 is a configuration diagram for explaining the configuration of the weighing machine 17. As shown in FIG. 7, an oil supply pipe 52 communicating with an underground tank (not shown) is provided in the casing of the weighing machine 17. A pump 54 driven by a pump motor 53 and a flow meter 55 for measuring the amount of refueling are provided in the middle of the refueling pipeline 52. The flowmeter 55 is provided with a flow rate pulse transmitter 56 for transmitting a flow rate pulse proportional to the flow rate.

The oil supply line 52 is connected to the oil supply hose 28, and supplies the oil supplied by the pump 54 to the oil supply nozzle 27 via the oil supply hose 28. The refueling nozzle 8 is opened by opening a main valve (not shown) provided by operating a nozzle lever to open the discharge pipe 2.
The oil liquid is discharged from 7A to the fuel tank. Refueling nozzle 27
Is hung on the nozzle hook 29 when not refueling, and when removed from the nozzle hook 29 during refueling, the nozzle switch 30
Is turned on, and a signal indicating that refueling is being performed is output to the control circuit 57.

Reference numeral 63 denotes a suction hose as an oil vapor suction pipe provided along the oil supply hose 28. One end of the suction hose extends to the end of the discharge pipe 27A of the oil supply nozzle 27 and opens at the end of the discharge pipe 27A. The mouth 63A. The other end of the suction hose 63 extends into the weighing machine 17 and is connected to an electromagnetic three-way valve 64.
4 branches into an intake hose 63B and an exhaust hose 63C. Furthermore, an intake hose 63B and an exhaust hose 63C
Open to the atmosphere via an intake pump 65 and an exhaust pump 66, which will be described later.

When the discharge pipe 27A of the fuel supply nozzle 27 is inserted into the fuel supply port of the fuel tank, oil vapor in the fuel tank is sucked from the discharge pipe 27A by the suction pump 65. In that case, the oil vapor in the fuel tank is
After passing through 7A, it is supplied into the nozzle body 27B. Therefore, the sucked oil vapor is sucked to the suction pump 65 side through the suction hose 63.

Reference numeral 67 denotes an oil vapor concentration sensor which is disposed downstream of the suction hose 63 and detects oil vapor supplied from the suction hose 63. The oil vapor concentration sensor corresponds to the oil vapor concentration of the oil type stored in the fuel tank. Outputs a seed detection signal. The oil vapor concentration sensor 67 is a gas sensor for general combustible gas,
For example, the sintering-type semiconductor sensor which was added palladium or the like as an additive in the tin oxide, gasoline, C _n H _{2n + 2} type saturated hydrocarbon such gas oil, etc. (gasoline; n =. 4 to
12, the resistance value changes according to the vapor concentration of hydrocarbons containing light oil n = 15 to 20).

Accordingly, the output voltage of the oil vapor concentration sensor 67 changes according to the oil type of the oil vapor supplied from the suction hose 63, and outputs an oil type detection signal of a voltage corresponding to the oil vapor concentration to the control circuit 57. . That is, the resistance value of the oil vapor concentration sensor 67 is gasoline, light oil, alcohol gas (methyl alcohol; CH ₃ OH, isopropyl alcohol; CH ₃
Regardless of the type of CH (OH) CH3 (with (OH) attached), it depends only on the gas concentration of hydrocarbons and has no gas selectivity.

Since the oil vapor concentration sensor 67 has a built-in electrothermal heater (not shown), a circuit for detecting the current flowing through the heater and the voltage of the heater, and a voltage applied to the heater are provided. The current value and voltage value of the heater are input to the control circuit 57 via an A / D converter for A / D converting the value. As the oil vapor concentration sensor 67, for example, a semiconductor gas sensor for detecting the oil vapor concentration of vapor or a contact combustion type sensor is used. Since both the semiconductor gas sensor and the contact combustion sensor have a built-in heater, the temperature of the air or oil vapor introduced into the oil vapor concentration sensor 67 is obtained by calculation based on the current value and voltage value of the heater. be able to.

The suction pump 65 is provided in the middle of the suction hose 63B, sucks the air in the suction hose 63, and supplies the oil vapor in the fuel tank to the oil vapor concentration sensor 67.
The suction pump 65 is composed of a motor and a gas pump (both not shown) for suction driven by the motor. Oil vapor in the fuel tank is sucked from the suction port 63A.

The exhaust pump 66 is provided in the middle of the exhaust hose 63C, supplies air into the suction hose 63, and detects the oil vapor and the oil vapor concentration sensor 6 remaining in the suction hose 63.
The oil vapor adhered to 7 is exhausted from the oil vapor suction port 63A. The exhaust pump 66 is composed of a motor and an exhaust gas pump (both not shown) driven by the motor. When the motor is driven, air from the exhaust hose 63C is supplied to the suction hose 63. Introduce oil vapor suction port 63
The oil vapor in the fuel tank is discharged from A.

On the other hand, reference numeral 68 denotes a display provided on the front or rear panel of the weighing machine 1, and a refueling amount display section 69 for displaying a refueling amount, an oil type judgment result, an operation error at the time of the oil type judgment operation, and the like. And an oil type determination state display section 70 for displaying. Further, the control circuit 57 is composed of, for example, a microcomputer, and the input side thereof has the above-described flow rate pulse transmitter 5.
6, connected to the nozzle switch 30, the oil vapor concentration sensor 67, the self-service unit 18 as a setting device, etc.
The output side is connected to a pump motor 53, an intake pump 65, an exhaust pump 66, a display device 68, and the like.

Then, the storage area (RA
M or ROM) stores an oil type determination program or the like for performing an oil type determination by comparing a detection value from the oil vapor concentration sensor 67 with a threshold value. In general, gasoline and light oil are often handled as oil types at a gas station. Therefore, in the present embodiment, a case in which the oil type of gasoline and light oil is determined will be described as an example.

Gasoline and light oil are the same hydrocarbon system,
Although the main component is a saturated hydrocarbon _{(C n H n + 2)} , the number of atoms, gasoline C ₄ -C _12, light oil C ₁₅ -C ₂₀
Is comprised of the components in the range. That is, light oil is composed of a component having a high boiling point (boiling point of 250 to 300 ° C), and gasoline is composed of a component having a low boiling point (boiling point of 30 to 150 ° C).
Therefore, the oil vapor concentration of light oil is low and the oil vapor concentration of gasoline is high.

On the other hand, additives such as a draining agent are mainly composed of alcohol and have a boiling point of 65 ° C., which is almost the same as that of gasoline components. The gas concentration increases in the order of light oil, alcohol, and gasoline. FIG. 8 is a graph showing the output characteristics of the oil vapor concentration sensor 67 for each oil type. The above oil vapor concentration sensor 6
7 changes the resistance value in accordance with the gas concentration of the sucked oil vapor, and the difference between the resistance values of gasoline and light oil is large due to the oil vapor concentration described above. Gasoline and light oil can be easily determined.

On the other hand, when the oil vapor concentration sensor 67 detects alcohol, which is a main component of the drainage agent, the resistance value is between light oil and gasoline. Therefore, as shown in FIG. 8, by comparing the output voltage of the oil vapor concentration sensor 67, it is possible to accurately determine whether the oil type is gasoline, light oil with a drainage agent, or light oil. Here, the oil type determination processing executed by the control circuit 57 will be described with reference to the flowcharts of FIGS. still,
The refueling nozzle 27 is for gasoline refueling.

In FIG. 9, the control circuit 25 checks whether or not the nozzle switch 30 has been turned on in step S11 (hereinafter "step" is omitted). When the refueling nozzle 27 is removed from the nozzle, the nozzle switch 30 is turned on. Then, when the nozzle switch 30 is turned on, the process proceeds to S12, where the electromagnetic three-way valve 64 is switched so that the oil vapor suction port 63A of the suction hose 63 and the suction hose 63B communicate with each other, and the suction pump 65 is started. Then, the timer is started (time measurement starts).

At this time, the discharge pipe 27A of the refueling nozzle 27 is not inserted into the refueling port of the fuel tank, and only air is sucked into the suction hose 63 from the oil vapor suction port 63A at the tip of the discharge pipe 27A. It is supplied to an oil vapor concentration sensor 67 via a hose 63. At S13, a preset oil type determination threshold value (L1) is read.

Here, when the refueling operator inserts the discharge pipe 27A of the refueling nozzle 27 removed from the nozzle hook 29 into the refueling port of the fuel tank, the oil vapor in the fuel tank flows from the discharge pipe 27A of the refueling nozzle 27 to the suction hose. It is sucked into 63. Then, the sucked oil vapor is supplied to the suction hose 63.
It is supplied to the oil vapor concentration sensor 67 via the inside. Then, the oil vapor concentration sensor 67 outputs an output voltage corresponding to the gas concentration of the oil vapor.

In step S14, the output value (D) corresponding to the oil vapor concentration in the fuel tank is output from the oil vapor concentration sensor 67.
When 1) is read, the process proceeds to S15, where the oil type is determined by comparing the threshold value (L1) with the output value (D1) from the oil vapor concentration sensor 67. In the case of the present embodiment, as shown in FIG. 8, when D1> L1, it is determined to be "gasoline", and when D1 <L1, it is determined to be "light oil".

Subsequently, in S16, the above oil type determination result and the oil type discharged from the oil supply nozzle 27 registered in the memory in advance (in this embodiment, the oil type of the oil liquid stored in the underground tank is referred to as "("Gasoline") or not. Therefore, in S15, when the oil type determination result of the oil vapor from the fuel tank is "gasoline", the oil type matches in the case of the present embodiment, so that the process proceeds to S17, and refueling permission is set. That is, in S17, the pump motor 53 is started, and the pump 54 pumps up the oil liquid (here, gasoline) in the underground tank (not shown) and sends the oil liquid to the oil supply hose 28 and the oil supply nozzle 27. Thus, the fuel tank can be refueled.

If it is determined in S16 that the oil type discharged from the fueling nozzle 27 does not match the oil type in the fuel tank, the process proceeds to S18. The processing after S18 will be described later. In the processing after S17, as shown in FIG. 10, in S19, for example, "gasoline refueling OK" is displayed on the oil type determination state display section 70. In the next S20,
After the pump 54 is started, the output of the intake signal to the intake pump 65 is stopped to end the oil type determination process.

In the next step S21, the exhaust pump 66 is started, and the electromagnetic three-way valve 64 is switched to the exhaust hose 63C side so that the oil vapor sucked into the suction hose 63 is exhausted from the oil vapor suction port 63A. Then, in S22, when the nozzle lever of the refueling nozzle 27 is opened to start refueling, a refueling measurement process is performed. That is, when the refueling nozzle 27 is opened, the gasoline in the underground tank (not shown) is pumped up by the pump 54 and sent to the fuel tank via the refueling pipeline 52, the refueling hose 28, and the refueling nozzle 27.

The amount of gasoline thus refueled is measured by the flow meter 55, and a flow pulse corresponding to the flow is output from the flow pulse transmitter 56 to the control circuit 57. Then, the measured refueling amount is displayed on the refueling amount display 69. In the next step S23, when the liquid level detection sensor (not shown) provided at the tip of the discharge pipe 27A is turned on, the liquid level detection sensor detects the liquid level of the oil liquid in the fuel tank and outputs the signal from the liquid level detection sensor. Read the signal of

In the next step S24, it is determined whether or not the tank is full based on the presence or absence of the liquid level detection signal. When it is determined in S24 that the fuel tank is full, the oil level in the fuel tank has risen to the vicinity of the fuel filler, and the fuel nozzle 2
The tip of the discharge pipe 27A of No. 7 is in contact with the oil surface. Accordingly, the process proceeds to S25, in which the output of the pump drive signal is stopped, and the pump motor 53 is stopped. Then, the refueling operator confirms that the pump 54 is full by stopping the pump 54, removes the refueling nozzle 27 of the fuel tank from the refueling port and puts it on the nozzle hook 29 in order to end the refueling operation. Further, in S26, it is checked whether or not the nozzle switch 30 is turned off.
When 0 is turned off, it is determined that the refueling nozzle 27 has been returned to the nozzle hook 29 and the refueling operation has been completed.

In S27, the operation of the exhaust pump 66 already driven in S21 is changed to a state in which the oil vapor suction port 63A is not exposed to oil vapor (the oil supply nozzle 27 is
9), an exhaust timer for completely exhausting the oil vapor in the intake hose 63 is started. If there is no liquid level detection signal in S24, the process proceeds to S28, and it is checked whether the nozzle switch 30 is turned off. If the nozzle switch 30 is ON in S28, it is determined that refueling is being performed, and the process returns to S22 to repeat the processing of S22 to S24. However, when the nozzle switch 30 is off in S28, it is determined that the refueling nozzle 27 has been returned to the nozzle hook 29, and the process proceeds to S29, in which the output of the pump drive signal is stopped and the pump motor 53 is stopped. . Then, the exhaust timer is started in S30.

As described above, when the exhaust pump 66 is driven, the oil vapor sucked from the oil vapor suction port 63A of the intake hose 63 is supplied to the exhaust pump 66, the oil vapor concentration sensor 67,
The oil is released into the atmosphere from the oil vapor suction port 63A via the intake hose 63. During this time, the oil vapor remaining in the intake hose 63 and the oil vapor attached to the oil vapor concentration sensor 67 are dissipated by the air blow at the time of exhaustion, and the cleaning process is performed.

After the exhaust timer is started in S27 or S30, the flow advances to S31 shown in FIG. 11 to check whether or not the measurement time of the exhaust timer has passed a predetermined time required for a preset cleaning process. I do. If the measurement time of the exhaust timer has exceeded the predetermined time in S31, the process proceeds to S32, where the output of the exhaust signal is stopped, and the exhaust pump 66 is stopped.

In S33, the exhaust timer is reset to end the cleaning process, and the current refueling process is ended. In S31, if the measurement time of the exhaust timer has not passed the predetermined time, S
Proceeding to 34, it is checked whether the nozzle switch 30 has been turned on. If the nozzle switch 30 is off, the process returns to S31.

However, when the nozzle switch 30 is turned on in S34, the refueling nozzle 27 is removed from the nozzle hook 29 during the cleaning process to start the next refueling operation. For example, a message such as “during cleaning processing, refueling is impossible” is displayed on the oil type determination state display unit 70 to notify the operator of an error. This error notification is sent to refueling nozzle 2
7 is returned to the nozzle hook 29, and the operation is continued until the nozzle switch 30 is turned off (S36). When the nozzle switch 30 is turned off, the error notification is stopped (S37). After the error notification is stopped, the process returns to S31, and the processing of the exhaust timer is continued.

When the oil vapor concentration D1 drawn from the fuel tank is smaller than the threshold value L1 in S16, the oil type of the fuel tank is determined to be "light oil" in S18. It is determined that the seed and the oil type of the oil liquid discharged from the oil supply nozzle 8 (in the present embodiment, the oil type stored in the underground tank is “gasoline”) do not match.

For this reason, in the next S38, the pump motor 63 is not started, the refueling is prohibited, and a message such as “light oil refueling is impossible” is displayed on the oil type determination state display section 70, and the oil type abnormality is displayed. Raise an alarm.
Then, the process proceeds to S39 shown in FIG. 11 to perform the cleaning process. That is, the output of the intake signal to the intake pump 65 is stopped. In the next step S40, an exhaust signal is output to activate the exhaust pump 67, and the electromagnetic three-way valve 64 is switched to the exhaust hose 63C side to exhaust the oil vapor sucked into the suction hose 63 from the oil vapor suction port 63A.

Further, at S40, the nozzle switch 30
Check if is turned off. Then, when the refueling nozzle 27 is returned to the nozzle hook 29 and the nozzle switch 30 is turned off, the process proceeds to S41, and the timer is reset. After that, the above-described cleaning processing after S31 is executed. Here, a control process executed by the gas station control device 13 will be described.

FIG. 12 is a flowchart of a process for controlling display on the screen of the display device 36, which is executed by the gas station control device 13. As shown in FIG. 12, in S51, the image of the refueling point (display area A5) displayed on the screen of the display device 36 is changed to “standby display” as shown in FIG. 6A.

In the next S52, the process waits until a message is sent from the self-service unit 18. When a message is transmitted from the self-service unit 18 in S52, S
Proceeding to 53, a message relating to the setting content sent from the self-service unit 18 is read. Then, based on the information, the display device 36 as shown in FIG.
In the information display area A3 of the image of the refueling point (display area A5) displayed on the screen of the self-service unit 1
The information such as the oil type, refueling amount, and full refueling set by the setting unit 25 of No. 8 is displayed.

In the next step S54, the process waits until a message is sent from the weighing machine 17. When the electronic message is transmitted from the weighing machine 17 in S54, the process proceeds to S55, and the “nozzle number information” transmitted from the weighing machine 17 is read. And S5
In 6, the “set oil type information” transmitted from the self-service unit 18 is compared with the “nozzle number information” transmitted from the weighing machine 17. According to the comparison result in S56, if the refueling nozzle 27 picked up by the customer is the refueling nozzle 27 of the same oil type as the oil type set by the setting unit 26 of the self-service unit 18, the process proceeds to S57 and the display device 36 The image of the refueling point (display area A5) displayed on the screen is changed to “refueling permission waiting display” as shown in FIG. 6C, and the buzzer is sounded briefly.

However, in S26, if the result of the comparison is that the fueling nozzle 27 picked up by the customer is a fueling nozzle 27 of an oil type different from the oil type set by the setting unit 26 of the self-service unit 18, for example, In the case where the refueling nozzle 27 for light oil is picked up even though the selected oil type is gasoline, the process proceeds to S58, and the information display area A3 of the image of the refueling point (display area A5) displayed on the screen of the display device 36 is displayed. “Different oil type” is displayed in the oil type display field as a nozzle error display as shown in FIG. 6 (G).
At the same time, the buzzer sounds intermittently. Therefore,
It can be confirmed that the refueling office has picked up a refueling nozzle 27 of an oil type different from the oil type set by the refueling operator at the refueling office.

Thereafter, the flow returns to S54, and the processing after S54 is repeated. Therefore, S54 to S58 until the refueling nozzle 27 of the same oil type as the oil type set by the refueling operator is picked up.
Is repeated. If the refueling operator does not notice that he has picked up the refueling nozzle 27 of an oil type different from the oil type set, the staff at the refueling station uses the intercom 16 to inform the refueling operator at the refueling point of the correct operation method. You can give instructions.

The fueling operator picks up the fueling nozzle 2
If the oil type of No. 7 matches the set oil type, S59
To read the oil type determination result by the oil vapor concentration sensor 67 described above. Subsequently, in S60, it is checked whether the sensor output from the oil vapor concentration sensor 67 is insufficient and an error has occurred. In S60, when the sensor output from the oil vapor concentration sensor 67 is insufficient,
Since it is determined that the oil type cannot be determined, the process proceeds to S61, and the information display area A
As shown in FIG. 6 (H), "oil confirmation" is displayed in the oil type display column 3 and the buzzer is sounded intermittently. Therefore, the staff of the refueling station cannot confirm that the refueling operator picked up the refueling nozzle 27 of the oil type different from the oil type of the fuel tank, so that the oil type cannot be determined, and the refueling point using the interphone 16 is not used. Can be instructed to confirm whether or not the oil type of the refueling nozzle matches the oil type of the fuel tank. Then, S5
Then, the process returns to S54, and the processes in and after S54 are executed again.

If it is determined in step S60 that the sensor output from the oil vapor concentration sensor 67 is sufficient, the flow advances to step S62 to check whether the oil type determination result is OK. That is, if the oil type of the fuel tank detected by the oil vapor concentration sensor 67 matches the oil type of the refueling nozzle 27 inserted into the fuel supply port of the fuel tank, the oil type determination is OK, and the process goes to S64. move on.

However, in S62, if the oil type of the fuel tank detected by the oil vapor concentration sensor 67 does not match the oil type of the refueling nozzle 27 inserted in the refueling port of the fuel tank, the process proceeds to S63. Then, the "different oil type" is displayed as a nozzle error display as shown in FIG. 6 (G) in the oil type display field of the information display area A3,
Buzzer sounds intermittently. Therefore, it can be confirmed that the refueling operator has picked up the refueling nozzle 27 of an oil type different from the oil type in the fuel tank also on the office side of the gas station. afterwards,
Returning to S54, the processing of S54 and thereafter is executed again.

In step S62, if the oil type of the fuel tank detected by the oil vapor concentration sensor 67 matches the oil type of the refueling nozzle 27 inserted into the refueling port of the fuel tank, the oil type determination is OK. Therefore, the process waits until the permission button 46 displayed on the screen of the display device 36 is pressed in S64. In the next step S65, the refueling permission message is output to the weighing machine 17, and the image of the refueling point (display area A5) displayed on the screen of the display device 36 is displayed as “Refueling start” as shown in FIG. Display ". At this time, in the oil type display column of the information display area A3, the oil type “gasoline” being supplied is displayed as the oil type determined as the oil type.

In S66, the process waits until a message is sent from the weighing machine 17. Then, in S66, the weighing machine 1
When the message of the refueling data transmitted from 7 is received, S6
Then, the process proceeds to step 7, where the electronic message relating to the refueling amount or the nozzle return sent from the weighing machine 17 is read. And the weighing machine 17
The image of the refueling point (display area A5) displayed on the screen of the display device 36 on the basis of the refueling amount transmitted from is displayed as a “refueling display screen” as shown in FIG. At this time, the accumulated amount of fuel supplied to the fuel tank of the vehicle is displayed in the information display area A3.

In the next S68, it is determined whether or not the message transmitted from the weighing machine 17 is "nozzle return". This S
In 68, if the message transmitted from the weighing machine 17 is “nozzle return”, the process proceeds to S69, where the image of the refueling point displayed on the screen of the display device 36 (display area A
5) is changed to “refueling end display” as shown in FIG. If the electronic message transmitted from the weighing machine 17 is not "nozzle return", the process returns to S66, and the processes after S66 are repeated.

Then, after S66, the gas station control device 13
Waits for the payment button 47 to be pressed, and
5 is sent a refueling end message. Then, the process returns to S51.
As described above, after confirming the oil type of the refueling data set by the setting unit 25, the customer who performs self-refueling to output the oil type match or the oil type mismatch based on the determination result by the oil type determination function, Even if the oil type is mistakenly set, or even if the oil supply nozzle 27 of a different oil type is taken out, the oil type of the oil supply nozzle 27 can be confirmed, so that the staff at the gas station does not have to go to the weighing machine 17.

Further, since the oil type judgment result by the oil type judgment function is displayed in the display area for displaying the oil supply data in the oil type display section of the information display area A3, a large number of data are simultaneously displayed in a narrow display area. This makes it easier for the staff at the gas station to check the contents displayed on the display device 36, so that the status of all the weighing machines 17 _{1 to} 17 _n can be grasped. Therefore, for example, even if an oil type error occurs in one of the plurality of weighing machines 17 _{1 to} 17 _n , the staff at the refueling station immediately checks the oil type determination result from the display on the display device 36. It is possible to instruct the driver that the oil type of the refueling nozzle 27 is wrong.

Even if the operator of the refueling station (driver) does not notice that the refueling nozzle 27 of an oil type different from the oil type in the fuel tank has been taken out, the person in charge of the refueling station can refuel the nozzle 27.
It can be confirmed whether or not the oil type matches the set oil type, so that it is possible to prevent a vehicle stopped at the refueling point from closing the refueling point for a long time without being able to refuel. Next, a modified example of the present invention will be described.

FIG. 13 is a flowchart of a modified example of the processing executed by the control station 13. FIGS. 14A to 14D are diagrams for explaining changes in a display example of a refueling point displayed on a screen of a display device 36 according to a modification. In FIG. 13, the processing of S51 to S69 is the same as the processing of FIG. 12, and the description thereof will be omitted.

If the sensor output from the oil vapor concentration sensor 67 is insufficient at S60, it is determined that the oil type cannot be determined, and the process proceeds to S62, where the oil type display section of the information display area A3 displays FIG. "Oil confirmation" is displayed and the buzzer sounds intermittently as shown in FIG. Therefore, the staff at the refueling station cannot confirm that the refueling operator picked up the refueling nozzle 27 of an oil type different from the oil type of the fuel tank, and used the interphone 16 to inform the refueling operator of the refueling point to the refueling nozzle. It can be instructed to check whether the oil type of the fuel tank matches the oil type of the fuel tank.

In this case, the screen of the display device 36 is shown in FIG.
4 (A) to 4 (C), a “standby display”, a “setting display”, and a “refueling permission wait display” are sequentially displayed. And
When the sensor output from the oil vapor concentration sensor 67 is insufficient and the oil type cannot be determined, an “oil type detection disabled display” as shown in FIG. 14D is displayed. In the “oil type detection impossible display”, a “detection error” indicating an oil type detection error is displayed in the oil type display field of the information display area A3, and the oil type detection error is released above the information display area A3. Release button 7
1 is displayed. Since the screen of the display device 36 has a touch panel structure, the oil type detection error can be released by pressing the release button 71.

Therefore, after S62, the process proceeds to S70, where it is checked whether or not the release button 71 has been turned on.
When the release button 71 is turned on in S70, S
Proceeding to 71, the “oil type undetectable display” is deleted. Next S
At 72, the “oil type detection error release signal” is
Send to 7. Then, in S73, it is confirmed that a signal of “reception of oil type detection error release signal” is returned from the weighing machine 17.

Thereafter, the flow shifts to S64, and waits until the permission button 46 displayed on the screen of the display device 36 is pressed. Then, when the permission button 46 is depressed, the processing after S65 is executed. In the next S65, the weighing machine 17
The refueling permit message is output to the
4 (E) is displayed as “refueling start display”. At this time, "error reset" is displayed in the oil type display field of the information display area A3.

In S66, the process waits until a message is sent from the weighing machine 17. Then, in S66, the weighing machine 1
When the message of the refueling data transmitted from 7 is received, S6
Then, the process proceeds to step 7, where the electronic message relating to the refueling amount or the nozzle return sent from the weighing machine 17 is read. And the weighing machine 17
The image of the refueling point (display area A5) displayed on the screen of the display device 36 based on the refueling amount transmitted from the vehicle is represented as a “refueling display screen” as shown in FIG. At this time, the error display and the accumulated refueling amount supplied to the fuel tank of the vehicle are displayed in the information display area A3.

In the next S68, it is determined whether or not the message transmitted from the weighing machine 17 is "nozzle return". This S
In 68, if the message transmitted from the weighing machine 17 is “nozzle return”, the process proceeds to S69, where the image of the refueling point displayed on the screen of the display device 36 (display area A
5) is changed to “refueling end display” as shown in FIG.
To If the electronic message transmitted from the weighing machine 17 is not "nozzle return", the process returns to S66, and the processes after S66 are repeated.

In the above-described embodiment, the above-described oil supply device of the ground installation type has been described as an example. However, the present invention is not limited to this, and it is needless to say that the present invention can also be applied to a suspension type oil supply device that raises and lowers an oil supply nozzle.

[0105]

As described above, according to the present invention, the oil type determination data obtained from the oil type determination result by the oil type determination function provided in the weighing machine is displayed in the display area for displaying the refueling data on the display unit. To prevent the display of a large amount of data at the same time in the narrow display area of the display unit, it is easy for the staff at the gas station to check the display contents of the display unit and grasp the status of all weighing machines. Can be. Therefore, for example, even if an oil type error occurs in one of a plurality of weighing machines, the staff at the refueling station immediately checks the oil type determination result from the display on the display unit and informs the driver of the oil of the oil supply nozzle. You can indicate that it is a mistake.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing an overall configuration of an embodiment of a gas station management system according to the present invention.

FIG. 2 is a configuration diagram showing a connection between an indoor device 11 and an outdoor device 12.

FIG. 3 is a block diagram illustrating a configuration of a gas station control device 13.

FIG. 4 is a diagram showing a display example of an image displayed on the display device 36.

FIG. 5 is a flowchart for explaining a refueling procedure between devices when performing self-refueling.

6 is a diagram for explaining a change in a display example of a refueling point displayed on a screen of a display device 36. FIG.

FIG. 7 is a configuration diagram for explaining a configuration of a weighing machine 17;

FIG. 8 is a graph showing output characteristics of each oil type of the oil vapor concentration sensor 67.

FIG. 9 is a flowchart of an oil type determination process executed by a control circuit 57;

FIG. 10 is a flowchart of an oil type determination process executed by a control circuit 57 following the process of FIG. 9;

FIG. 11 is a flowchart of an oil type determination process executed by the control circuit 57 following the process of FIG. 10;

FIG. 12 is a display device 36 executed by the gas station control device 13.
9 is a flowchart of a process for controlling display of a screen.

FIG. 13 is a display device 36 executed by the gas station control device 13.
13 is a flowchart of a modification of the process for controlling the display of the screen.

FIG. 14 is a diagram illustrating a change in a display example of a refueling point displayed on a screen of a display device according to a modified example.

[Explanation of symbols]

Reference Signs List 11 indoor equipment 12 outdoor equipment 13 gas station control device 14 monitoring monitor 15 POS terminal 17 _{1 to} 17 _n weighing machine 18 ₁ to 18 _n self-service unit 19 _{1 to} 19 _n monitoring camera 25 setting unit 27, 27a to 27d Refueling nozzle 28, 28a to 28d Refueling hose 29, 29a to 29d Nozzle hook 30, 30a to 30d Nozzle attachment / detachment detection switch 36 Display device 37 Input device 38 Storage device 39 Serial communication interface 40 Parallel input / output interface 45 Image 46 Menu button 47 Camera Button 48 Pump button 49 Permit button 50 Settlement button 63 Suction hose 52 Oil supply line 53 Pump motor 54 Pump 55 Flow meter 56 Flow pulse transmitter 57 Control circuit 63 Suction hose 64 Electromagnetic three-way valve 65 Intake pump 66 Exhaust pump 67 Oil The gas concentration sensor

Claims (1)

[Claims] A data receiving unit that receives oil type determination data transmitted from a weighing machine provided with an oil type determination function and oil supply data including an oil type and an oil amount of an oil nozzle used for oil supply; A display unit for displaying the oil type and the amount of oil of the oiling data received by the data receiving unit for each oiling point of each measuring machine; and the oil type determination data obtained from the oil type determination result by the oil type determining function. And a display control means for displaying the abnormal data in a display area for displaying the oil type data on the display unit when is abnormal data.