JPH0924996A - Oil feed apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an oil feed apparatus wherein one controller is workable for display devices of different kinds. SOLUTION: An oil feed apparatus has a construction wherein an oil feed pump to which an oil feed motor 13 is connected and a flow meter provided with a flow rate pulse transmitter 16 are successively disposed on an oil feed pipe rising up from an underground tank; an oil feed hose having an oil feed nozzle at the top end thereof is connected to the oil feed pipe; a nozzle hanging unit holding the oil feed nozzle therein and having a nozzle switch 20, and a display device 21 for displaying oil feed data are provided; and a controller 31 for controlling each device including the display device 21 is provided. The display device 21 comprises a display unit 24 composed of any one of aliquid crystal, a plasma or a fluorescent tube, a driver 23 for operating the display unit 24 and an interface circuit 22 for converting a signal for display, which is given to the driver 23 by the controller 31, into a signal applicable to the kind of the display unit 24. The controller 31 has a display signal output unit 32 for outputting a common signal for display, which is not related with the kind of the display unit 24.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil supply device having an improved display device at a gas supply station for supplying fuel to an automobile or the like.

[0002]

2. Description of the Related Art In a conventional refueling device, the display device is composed of a display unit such as liquid crystal, plasma or a fluorescent tube and a driver for driving the display unit. Since different display signals are output according to the above, different control devices are used for each type of display unit.

[0003]

That is, in the conventional refueling device, since the control device is changed according to the type of the display section in the display device, it is necessary to prepare the control device of different types, and the management thereof is required. It became complicated and costly.

Therefore, an object of the present invention is to provide an oil supply device capable of coping with display devices of different types with one control device.

[0005]

In order to achieve the above-mentioned object, an oil supply system of the present invention comprises an oil supply pump in which an oil supply motor is connected to an oil supply pipe raised from an underground tank, and a flow rate pulse transmitter. Flowmeters are sequentially arranged, a refueling hose having a refueling nozzle at the tip is connected to the refueling pipe, a nozzle hook having a nozzle switch for accommodating the refueling nozzle, and a display device for refueling data display are provided, and In an oil supply device provided with a control device for controlling each device including the display device, the display device includes a display unit made of either liquid crystal, plasma or a fluorescent tube, and a driver for driving the display unit, An interface circuit for converting a display signal given from the control device to the driver into a signal corresponding to the type of the display body, and the control device is It is intended to include a display signal output unit for outputting a common display signal regardless of the type of the display unit. The display signal output unit of the control device outputs a common display signal regardless of the type of display unit, converts this display signal into a signal corresponding to the type of display body by the interface circuit, and based on this converted signal Since the driver drives the display unit, the control device can be the same regardless of the type of the display unit, and one control device can handle different display devices.

The interface circuit comprises a data check means for inspecting a display signal given from the control device, and a data conversion means for converting the signal after the inspection by the data check means into a signal corresponding to the type of the display section. It is preferable to have the following because the display signal provided from the control device is inspected by the data check means and then converted into the signal corresponding to the type of the display unit by the data conversion means, so that the display signal can be converted without error. . Further, since the data is checked by the data checking means, it is preferable that there is no erroneous display even if the control device and the data converting means are separated.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is a conceptual diagram of an oil supply device according to the embodiment of the present invention.

In FIG. 1, an oil supply device 10 includes an oil supply pipe 12 communicating with an underground tank (not shown) in a case 11 thereof.
Is started up, and an oil supply pump 14 having an oil supply motor 13 connected to the oil supply pipe 12 and a flow meter 15 having a flow rate pulse transmitter 16 are sequentially arranged, and led from the flow meter 15 to the side surface of the case 11. An oil supply hose 17 is connected to the end portion of the oil supply pipe 12 that has been opened. A refueling nozzle 18 is provided at the tip of the refueling hose 17. Case 1
Nozzle hook 19 for hooking the refueling nozzle 18 on the side surface of 1.
A nozzle switch 20 that is turned on and off by attaching and detaching the oil supply nozzle 18 is provided near the nozzle hook 19. Further, a display device 21 for displaying the amount of refueling is provided at an easily visible position on the front side of the case 11. Further, in the case 11, a control device 31 for controlling each part such as the refueling motor 13 and the display device 21.
Is provided.

FIG. 1 is a block diagram illustrating a control configuration of an oil supply device according to an embodiment of the present invention. In addition,
The parts corresponding to those in FIG. 2 are designated by the same reference numerals.

In FIG. 1, the control device 31 controls the refueling motor 13 and the display device 21 based on signals from the flow rate pulse transmitter 16 and the nozzle switch 20. Specifically, the control device 31 controls the start / stop of the refueling motor 13 based on the signal of the nozzle switch 20, resets the display device 21 to zero, and integrates the pulse signal supplied from the flow rate pulse transmitter 16. Then, a display signal is output to the display device 21. The display signal output from the control device 31 is a common signal regardless of the type of display unit, as will be described later, and is output from the display signal output unit 32 of the control device 31. The display device 21 includes an interface circuit 22, a driver 23, and a liquid crystal display unit 24. The interface circuit 22 includes a data check means 22a for inspecting a display signal supplied from the control device 31, and a liquid crystal data conversion means 22b for converting the display signal inspected by the data check means 22a for liquid crystal display. It consists of The driver 23 is a portion that drives the liquid crystal display unit 24 based on the signal converted by the liquid crystal data conversion unit 22b. The display device 21 is the interface circuit 2
2. The driver 23 and the liquid crystal display unit 24 are integrally assembled.

In addition, as shown in FIG. 1, the refueling device according to the embodiment of the present invention uses a plasma display device 41 or a fluorescent tube display device 51 instead of the liquid crystal display device 21. can do.
A plasma display device 41 includes an interface circuit 42 for converting a display signal into a plasma display driving signal.
, A driver 43, and a plasma display unit 44, and the interface circuit 42 includes a data check unit 42a and a plasma data conversion unit 42b. Further, the display device 51 using a fluorescent tube includes an interface circuit 52 that converts a display signal into a fluorescent tube display driving signal, a driver 53, and a fluorescent tube display section 54. The interface circuit 52 is a data check unit. 52a and fluorescent tube data conversion means 52b.

The operation of the oil supply apparatus 10 having the above structure will be described. First, when the refueling nozzle 18 is removed from the nozzle hook 19, the nozzle switch 20 is activated, the refueling motor 13 is started under the control of the control device 31, and at the same time the display device 21 is reset to zero and the refueling pump 14 is driven. It becomes possible to refuel. Next, when refueling is started by the refueling nozzle 18,
The flow rate pulse transmitter 16 of the flow meter 15 transmits a pulse signal. The control device 31 integrates the pulse signals and outputs a display signal to the display device 21 from the display signal output unit 32 regardless of the type of the display unit. The display signal is inspected by the data check means 22a of the interface circuit 22, converted into the liquid crystal display signal by the liquid crystal data conversion means 22b, and the driver 23 is based on the signal.
Thus, the liquid crystal display unit 24 is driven. Further, even if noise or the like is mixed in the data from the control device 31, it is checked by the data check means, so that there is no erroneous display.

Further, in the fueling apparatus according to the embodiment of the present invention, when the plasma display device 41 is used, the display signal output from the control device 31 is converted into a plasma display signal by the interface circuit 42, The plasma display section 44 is driven by the driver 43. Next, when the display device 51 using a fluorescent tube is used, the interface circuit 52 similarly converts a display signal output from the control device 31 into a signal for fluorescent tube display, and the driver 53 causes the fluorescent tube display unit 54 to display. Driven.

As described above, according to the fuel supply device having the above-described structure, the interface circuits 22, 42, 52 for converting the display signals for driving according to the type of the respective display units on the display devices 21, 41, 51 side. By providing a display signal output unit that outputs a common display signal regardless of the type of display unit on the control device 31 side, the control device 31 can be shared regardless of the type of display unit. Therefore, the display device can be used with any of liquid crystal, plasma or fluorescent tube without replacing the control device 31,
The management can be simplified and the cost can be reduced.

[0015]

As described above, according to the refueling device of the present invention, it is not necessary to replace the control device when changing the display device to another type as in the conventional refueling device, and one control device can be used. This makes it possible to support different types of display devices.

[Brief description of drawings]

FIG. 1 is a block diagram illustrating a control configuration of an oil supply device according to an embodiment of the present invention.

FIG. 2 is a conceptual diagram of an oil supply device according to an embodiment of the present invention.

[Explanation of symbols]

 10 Refueling Device 11 Case 12 Refueling Pipe 13 Refueling Motor 14 Refueling Pump 15 Flowmeter 16 Flow Rate Pulse Transmitter 17 Refueling Hose 18 Refueling Nozzle 19 Nozzle Switch 20 Nozzle Switch 21 Display Device 22 Interface Circuit 23 Driver 24 Liquid Crystal Display Unit 31 Control Device 32 Display signal output unit 41 Display device 42 Interface circuit 43 Driver 44 Plasma display unit 51 Display device 52 Interface circuit 53 Driver 54 Fluorescent tube display unit

Claims (2)

[Claims] 1. An oil supply pipe set up from an underground tank,
A refueling pump connected to a refueling motor and a flow meter equipped with a flow rate pulse transmitter are sequentially arranged, a refueling hose having a refueling nozzle at the tip is connected to the refueling pipe, and a nozzle switch for housing the refueling nozzle is provided. In a fueling device provided with a display device for displaying nozzles and refueling data, and a control device for controlling each device including the display device, the display device is made of liquid crystal, plasma or a fluorescent tube. The control device includes a display unit, a driver for driving the display unit, and an interface circuit for converting a display signal given from the control device to the driver to a signal corresponding to the type of the display unit. Has a display signal output unit that outputs a common display signal regardless of the type of the display unit. 2. The interface circuit comprises a data check means for inspecting a display signal supplied from the control device, and data for converting the signal after the inspection by the data check means into a signal corresponding to the type of the display section. The refueling device according to claim 1, further comprising a conversion unit.