JPH0441116Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an oil supply device that is capable of supplying multiple types of oil with one measuring machine.

[Prior Art] Generally, in order to be able to refuel desired oil types (e.g. gasoline and diesel oil) at one refueling point, fixed or suspended types are installed that are equipped with multiple refueling systems corresponding to multiple oil types. Weighing machines are known. and,
This type of weighing machine is equipped with a control device consisting of a microcomputer, etc. inside, and centrally controls multiple lubrication systems, and in order to prevent erroneous lubrication, simultaneous lubrication of lubrication systems for multiple oil types is not allowed. It's becoming like that.

On the other hand, in order to streamline operations, at gas stations that have adopted sales management machines called POS terminals (hereinafter referred to as "POS"), refueling operations have begun in order to link the weighing machines with the POS. On the occasion of
It is known that the refueling system can be driven on the condition that refueling permission data transmitted and output from the POS is received.

Regarding the refueling system using this POS, the refueling work order is as follows: First, when refueling, a card containing various refueling element data such as customer identification data and oil type specification data is read into the card reader installed in the POS. let Next, once the card has been read, the operator operates the weighing machine designation key provided on the POS to specify the weighing machine to be refueled. When this weighing machine is specified, the refueling permission data is transmitted from the POS to the relevant measuring machine, and the control device of the relevant measuring machine reads the refueling permission data and permits the driving of the designated oil type of each refueling system. I'm starting to do that.

[Problem that the invention attempts to solve]

By the way, there are various types of cards issued by gas stations, and there are cases where a certain customer's card does not store oil type specification data (hereinafter referred to as "no specification"), and conversely, there are cases where a certain customer's card does not store oil type specification data (hereinafter referred to as "no specification"). The card may store multiple oil type specification data (hereinafter referred to as "double specification").

In particular, in the case where the former is not specified, the refueling permission data transmitted and output from the POS includes refueling for multiple oil types so that refueling can be performed by operating the refueling nozzle of any refueling system on the weighing machine side. Permits are now being issued. As a result, the control device on the weighing machine side that has read the refueling permission data is in a state where refueling permission can be granted to multiple refueling systems, and the final refueling system for which the refueling worker had previously removed the refueling nozzle is Refueling permits are now being issued.

Therefore, if a refueling worker operates a refueling nozzle of the wrong type of oil, there is a risk that the wrong type of oil will be refueled, especially in models where two systems of refueling nozzles are installed on one side of the weighing machine. There is a problem with this measuring machine that there is a great risk of filling the wrong type of oil.

The present invention was developed in view of the problems of the conventional technology.If the oil type specification data stored in the card is not specified, refueling is performed only when the oil type is specified on the measuring machine side. The objective is to provide a refueling device that makes it possible to

[Means for solving problems]

In order to solve the above problems, the present invention provides a measuring machine that has multiple oil supply systems corresponding to multiple oil types, and a measuring machine that includes specification data and oil type data for the measuring machine at the beginning of refueling work. Consisting of a vending machine that outputs refueling permission data, and a control means provided in the weighing machine that permits driving of any of the refueling systems by reading the refueling permission data from the vending machine. In the refueling device, the measuring machine is provided with a setting/input guide means that allows setting and input guidance of a desired oil type or refueling system, and the control means determines which oil type data is included in the refueling permission data. an oil type determination means for determining whether the oil type is a specified oil type or not; and a first oil type determination means for permitting refueling by a refueling system corresponding to the oil type when the oil type determination means determines that the oil type data is a predetermined oil type. When the oil supply permission control means and the oil type determination means determine that the oil type data is unspecified, the setting and
A second refueling permission control means that causes the input guide means to perform oil type setting guidance and, when a predetermined oil type is set, permits refueling by a corresponding oil supply system. .

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail by taking a fixed weighing machine as an example and referring to the accompanying drawings.

Note that the following description includes oil supply systems A and B, and symbols A and B are added to the constituent elements of each oil supply system A and B.

First, in Figure 1, 1 is the site of the gas station, 2
A and 2B are tanks buried underground in the site 1, and the tanks 2A and 2B store oil type a (e.g. gasoline) and oil type b (e.g. via), and are connected to liquid sending pipes 3A and 3B. It is designed to suck up oil liquid through.

4 is a fixed weighing machine installed on site 1,
The weighing machine 4 is equipped with two oil supply systems A and B. Here, each oil supply system A, B has fixed piping 5A, 5B connected at one end to liquid sending piping 3A, 3B.
and pumps 7A, which are provided in the middle of the fixed pipes 5A, 5B and driven by motors 6A, 6B.
7B, and a flow meter 8 located on the discharge side of the pumps 7A, 7B and provided in the middle of the fixed pipes 5A, 5B.
A, 8B, flow rate pulse transmitters 9A, 9B attached to the flowmeters 8A, 8B, and the fixed piping 5.
Hoses 10A and 10 connected to the other ends of A and 5B
B, the oil supply nozzles 11A, 11B provided at the tips of the hoses 10A, 10B, and the oil supply nozzle 1.
Nozzle hook 12A for hooking and unhooking 1A and 11B,
12B, and nozzle switches 13A, 13B that are closed when the oil supply nozzles 11A, 11B are removed from the nozzle hooks 12A, 12B, and opened when they are hooked.

Further, the front panel of the casing of the weighing machine 4 is provided with a refueling amount display 14 for displaying the amount of refueling, as well as a setting input guide 15. Here, as shown in FIG. 2, the setting input guide 15 includes an input guide display 16 that displays the input guide "Please set the oil type" when no specification or double specification is made, and It is comprised of oil type setting switches 17A and 17B that set oil types a and b when input guidance is received on the guidance display 16.

Reference numeral 18 denotes a control device provided in the casing of the weighing machine 4. The control device 18 is configured by, for example, a microcomputer, and the control device 18 includes flow rate pulse transmitters 9A, 9B, and a nozzle switch 13.
A, 13B, the oil supply amount display 14, the setting input guide 15, and the motor drive circuit 19.
It is connected to motors 6A and 6B via A and 19B, and connected to a POS 22 (described later) via a transmission interface 20 and a data bus 21.
(see figure). Here, the control device 18 has a first function (a refueling work start processing function) of starting the motors 6A, 6B of either refueling system at the start of refueling work, as described later, and a nozzle switch 13A, 13B is closed, the refueling amount display 14 is reset to zero, and during refueling, the flow pulses from the flow rate pulse transmitters 9A and 9B are counted and displayed on the refueling amount display 14 and POS 22. , display processing function), and when the nozzle switches 13A, 13B are opened at the end of the refueling operation, the motors 6A, 6B are stopped,
It has a third function (refueling work completion processing function) of transmitting data such as the amount of refueling to the POS 22 via the transmission interface 20. Note that the second and third functions are conventionally known.

In addition, 22 is a POS installed outdoors, for example.
The POS 22 includes an operation section 23 for inputting the unit price, weighing machine number, sales product amount, etc., a card reader 24 for reading the memory contents 25a (see FIG. 5) of the card 25 (see FIG. 4), a printer, etc. (see FIG. (not shown), and sales management for each customer and oil type is performed based on oil supply data sent from the above-mentioned measuring machine. And said POS2
2, n units of weighing machines 4 ₁ , 4 ₂ , installed in the gas station via a data bus 21 as shown in FIG.
...4 Connected to _o .

Furthermore, FIG. 3 shows a functional block of a refueling start control section 26 implemented in the control device 18, and the refueling start control section 26 includes an oil type determination circuit 27, an oil type determination circuit 27,
It is comprised of a first refueling permission control circuit 28, a second refueling permission control circuit 29, OR circuits 30, 31, pump drive circuits 32, 33, and the like.

Here, the oil type determination circuit 27 is connected to the POS 22 via a transmission interface 20 and a data bus 21. The oil type determination circuit 27
By reading the later-described refueling permission data 34 (see Figure 6) input from the POS 22, when a single oil type data of oil types a and b is specified, that oil type is determined. , a function of outputting an oil type determination signal to the first oil supply permission control circuit 28, and a case where neither oil type a nor oil type data of oil type b exists, or when both oil types a and b are specified. In the case of double designation, it has a function of outputting a signal to that effect to the second refueling permission control circuit 29.

When the oil type determination signal regarding oil type a or b is inputted from the oil type determination circuit 27, the first oil supply permission control circuit 28 performs an OR circuit to drive the oil supply system corresponding to the oil type a or b. It has a function of outputting a refueling permission signal to pump drive control circuits 32 and 33 via 30 and 31.

The second refueling permission control circuit 29 also has a function of outputting a guide display signal to the input guide display 16 of the setting input guide 15 when a no-designation signal or a double-designation signal is input from the oil type determination circuit 27. , when an oil type setting signal for oil type a or b is input from either oil type setting switch 17A or 17B, OR circuits 30 and 31 are activated to drive the oil supply system corresponding to the oil type a or b. It also has a function of outputting a refueling permission signal to the pump drive control circuits 32 and 33 via the pump drive control circuits 32 and 33.

Furthermore, when the closing signal is input from the nozzle switches 13A, 13B while the oil supply permission signal is input from the OR circuits 30, 31, the pump drive control circuits 32, 33 drive the motors of each oil supply system A, B. It has a function of outputting motor drive signals of circuits 19A and 19B to drive motors 6A and 6B, and a function of stopping output of motor drive signals when an open signal is input from nozzle switches 13A and 13B. .

The present embodiment is constructed as described above, and its operation will now be described with reference to FIG.

First, before refueling, please take the customer's card 25.
It is read by the card reader of POS22.
That is, the memory contents 25a of the card 25, as shown in FIG. 5, include a customer number column 25a ₁ , an oil type specification column 25a ₂ ,
A unit price field _25a3 is provided, and these data are read by the card reader 24. next,
A predetermined weighing machine number is set using the operation unit 23 of the POS 22.

As a result, the refueling permission data 34 shown in FIG. 6 is transmitted to the designated weighing machine 4 from the POS 22 via the data bus 21 by serial transmission or the like. Here, the refueling permission data 34 includes an identification data field 34a including a polling address as measuring machine designation data, oil type data fields 34b and 34c corresponding to the number of oil types, and each oil type data field. 34b, 34c are oil type column 34b ₁ ,
Oil type specification flag field 34 created in response to 34c ₁
b ₂ , 34c ₂ and unit price data columns 34b ₃ , 34c ₃ . Then, the oil type specification flag column 34
For b ₂ and 34c ₂ , when oil types a and b are specified in the card 25, the flag in the corresponding column is set to ``1'', and when not specified, the flag is set to ``0'', while in the unit price data column 34b ₃ and 34c ₃ are configured such that when unit price data corresponding to the oil type exists in the card 25, the unit price data is written therein.

When the refueling permission data 34 is taken into the oil type determination circuit 27 of the refueling start control section 26 via the transmission interface 20 (step 1), the oil type determination circuit 27 reads the oil type data column 34b. ,34c
Referring to the flags in the oil type designation flag columns 34b ₂ and 34c ₂ , it is determined whether or not there is an oil type designation (step 2).

Then, when the oil type determination circuit 27 determines that a single oil type of oil type a or b is specified, for example, oil type a is specified (step 3), the oil type is determined for the specified oil type a. A signal is output to the first refueling permission control circuit 28. As a result, the first
The refueling permission control circuit 28 selects the corresponding refueling system A (step 4), and outputs a refueling permission signal to the pump drive control circuit 32 via the OR circuit 30 (step 5).

On the other hand, the oil type determination circuit 27 indicates no designation (i.e., the contents of the oil type designation flag column in each oil type column are all "0") or double designation (i.e., the contents of the oil type designation flag column in multiple oil type columns). is "1") (step 3), the second refueling permission control circuit 2
A non-designation signal or a double designation signal is output to 9. As a result, the refueling permission control circuit 29 outputs a guidance display signal to the input guidance display 16 to display the guidance "Please set oil type" (step 6). When the operator selects oil type a by pressing either of the oil type setting switches 17A and 17B, for example, switch 17A, a setting signal is output. As a result, the second refueling permission control circuit 29 reads this (step 7), selects the corresponding refueling system A (step 4), and outputs a refueling permission signal to the motor drive circuit 19A via the OR circuit 30 ( Step 5).

In this way, since refueling permission has been granted, when the refueling nozzle 11A is removed from the nozzle hook 12A, a closing signal is output from the nozzle switch 13A, a motor drive signal is output from the pump drive control circuit 32 to the motor drive circuit 19A, and the motor is activated. 6A starts. Then, by inserting the refueling nozzle 11A into the fuel tank and opening the valve, refueling with oil type a is executed.
After refueling is completed, hook the refueling nozzle 11A to the nozzle 1
2A, an open signal is output from the nozzle switch 13A, the output of the motor drive signal from the pump drive control circuit 32 is stopped, and the motor 6A is also stopped.

As described above, according to this embodiment, when the liquid type is not specified on the customer's card 25 or when the liquid type is double specified, the input guide display 1
6 performs input guidance, and a refueling permission signal is output only when one of the liquid types is set with the oil type setting switches 17A and 17B. Therefore, even if the above-mentioned non-specified or double-specified cards are used, different types of refueling will not be possible. You can perform accurate refueling work without fear.

In the embodiment, an outdoor POS is illustrated as the POS 22, but an indoor POS installed in an office or the like may be used. Further, although the input guide display 16 is used as the input guide means, a voice input guide consisting of a voice synthesizer and a speaker may also be used. Furthermore, it goes without saying that the oil type setting switches 17A and 17B may be used as oil supply system setting switches.

[Effect of idea]

The refueling device according to the present invention is as described in detail above, and is configured so that when the liquid type is not specified on the card, refueling is not permitted unless the desired oil type is specified according to the input guide. ,2
Even in weighing machines equipped with more than one lubrication system,
There is no risk of filling the wrong type of oil, and the reliability and safety of the oiling work can be improved.

[Brief explanation of the drawing]

Fig. 1 is an overall configuration diagram showing the refueling device according to this embodiment, Fig. 2 is an enlarged view showing the setting input guide in Fig. 1, and Fig. 3 is a diagram showing the configuration of the refueling start control section in the control device. Functional block diagram, Figure 4 is a connection state diagram showing the serial transmission system between POS and each weighing machine, Figure 5
The figure is an explanatory diagram showing the memory contents of the card, Fig. 6 is an explanatory diagram showing the format of refueling permission data, and Fig. 7 is an explanatory diagram showing the format of refueling permission data.
The figure is an explanatory diagram showing the processing operation. 2A, 2B...Tank, 4...Fixed weighing machine,
6A, 6B...Motor, 7A, 7B...Pump,
8A, 8B...Flow meter, 9A, 9B...Flow rate pulse transmitter, 10A, 10B...Hose, 11A,
11B...Refueling nozzle, 13A, 13B...Nozzle switch, 14...Refueling amount display, 15...Setting input guide, 16...Input guide display, 17
A, 17B...Oil type setting switch, 18...Control device, 19A, 19B...Motor drive circuit, 20
...Transmission interface, 21...Data bus,
22...POS, 23...Operation unit, 24...Card reader, 25...Card, 26...Refueling start control unit, 27...Oil type determination circuit, 28...First refueling permission control circuit, 29 ...Second refueling permission control circuit, 30, 31...OR circuit, 32, 33...Pump drive control circuit, 34...Refueling permission data,
A, B...Oil supply system, a, b...Oil type.

Claims (1)

[Scope of utility model registration request] A measuring machine having multiple refueling systems corresponding to multiple oil types; a sales management machine that outputs refueling permission data including specification data of the measuring machine and oil type data at the start of refueling work; A refueling device comprising: a control means installed in a vehicle and configured to permit driving of any one of the refueling systems by reading refueling permission data from the vending machine;
The measuring machine is provided with a setting/input guidance means that allows setting and input guidance of a desired oil type or oil supply system, and the control means does not specify which oil type the oil type data in the oil supply permission data is. an oil type determination means for determining whether the oil type is a predetermined oil type; and a first oil type determination means for permitting refueling by a refueling system corresponding to the oil type when the oil type determination means determines that the oil type data is a predetermined oil type.
When the oil supply permission control means and the oil type determination means determine that the oil type data is unspecified,
and a second refueling permission control means that causes the setting/input guide means to guide the setting of the oil type and, when a predetermined oil type is set, permits refueling by the corresponding oil supply system. Features a refueling device.