JPH0738475A - Service station centralized control equipment - Google Patents

Abstract

PURPOSE:To obtain a service station centralized control equipment in which it is not required to change installation of communication cables even when an equipment is replaced. CONSTITUTION:Each equipment makes data transmission reception with other equipment through a power line 3 installed in a service station shop 1 including a sales room 2 by power line MODEMs 21,23,25 or the like provided in a power line connection path for various equipments such as a fuel pump 22, a car washing equipment 24, and a oil guage 26 or the like. When the equipment is replaced, the equipment is connected to the power line via the power line MODEM, it is not required to revise the wiring. Furthermore, the power line MODEM 21 provided in a power line connection path of the fuel pump 22 is covered by a cover for preventing fire attraction by an electric arc and the power line MODEM 23 provided in the power line connection path of the car washing equipment 24 is covered by the water-proof cover.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for centrally managing various equipment installed in a service station (gas station).

[0002]

2. Description of the Related Art A service station is provided outdoors with a fuel pump for gasoline, light oil, etc., and equipment such as an oil level gauge for stored fuel. These detection signals are transmitted through communication cables to POS terminals in the sales room. It is also connected to a controller, etc. to display the amount of refueling, settle fees and manage the remaining amount of stored fuel. The above-mentioned communication cable is usually laid in the ground of the service station, and is usually covered with concrete or the like.

By the way, in this type of service station, new equipment is introduced relatively often, but conventionally, a communication cable is dug up each time and a communication cable corresponding to a new equipment is laid. It was

[0004]

Conventionally, as described above, since the communication cable was laid again every time the device was replaced due to the introduction of a new type of device, the construction cost was high and the cost was high. There was a drawback in that the service was degraded due to the equipment being unusable for several days until the completion of construction.

The present invention has been proposed in view of the above points, and an object of the present invention is to provide a service station centralized management apparatus which does not require re-laying of a communication cable even if a device is replaced. Especially.

[0006]

In order to achieve the above object, the present invention provides a power line installed in a service station store including a sales room and various devices such as a fuel pump, a car wash machine, and an oil level gauge. A power line modem is provided which is provided in the power line connection path and which transmits and receives input signals or output signals of these devices to and from other devices via the power line.

Further, the power line modem provided in the power line connection path of the fuel pump is covered with a cover for preventing ignition due to electric sparks, and the power line modem provided in the power line connection path of the car wash machine is waterproofed. It is preferably covered with a cover.

[0008]

In the service station centralized management apparatus of the present invention, the power line modem provided in the power line connection path of various devices such as the fuel pump, the car wash machine, the oil level gauge, etc., enables the service station store including the sales room to be installed. Each device transmits / receives data to / from another device through a power line stretched around the device. The device can be replaced only by connecting it to the power line via the power line modem, so that it is not necessary to change the wiring.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a service station centralized management apparatus of the present invention.

In FIG. 1, a service station store 1 includes a sales room 2 and other parts (generally outdoors).
Power line 3 common to both parts
The power line 3 is provided with outlets at various places so that various devices can be connected to receive power supply. The power line 3 is a filter 4 that blocks passage of a carrier frequency signal for data communication.
It is designed to be connected to the power company line via.

As the outdoor equipment, an external terminal 18 for inputting / outputting data outdoors, a depositing / dispensing machine 20 for depositing / withdrawing money, a fuel pump 22 for supplying fuel such as gasoline and light oil, and an automobile Car washing machine 24 that automatically cleans the body of the vehicle, an oil level gauge 26 that detects the remaining amount of fuel stored underground, and a guiding device 28 that guides the route of the vehicle.
And a vehicle number reader 30 for automatically reading the license plate of the automobile, and a vehicle detector 32 for detecting the presence of the vehicle. The power line modems 17, 19, 21, respectively.
It is connected to the power line 3 via 23, 25, 27, 29 and 31. The outdoor equipment is not limited to these.

On the other hand, as the equipment in the sales room 2, a facsimile 6 for communicating still images, an information terminal 8 for inputting / outputting data and information processing, an outdoor fuel pump 22, a car washing machine 24 and the like are controlled. Controller 1
0 and POS that manages sales data and inventory data
A terminal 12, a depositing / dispensing machine 14 for depositing / withdrawing money, and a printer 16 for printing data on paper are provided.
Each is connected to the power line 3 via the power line modems 5, 7, 9, 11, 13, and 15. The equipment in the sales room 2 is not limited to these.

FIG. 2 shows the elements 5, 7, 9, 11, 1 shown in FIG.
3,15,17,19,21,23,25,27,2
9 shows an example of an internal configuration of a power line modem M corresponding to 9, 31.

In FIG. 2, the power line modem M is connected to the power line 3 through an outlet C, separates the power signal and the carrier data signal, supplies the power signal to various devices D, and superimposes the carrier data signal on the power line 3. A separation / synthesis unit a, a modulation / demodulation unit b for demodulating the carrier data signal separated by the separation / synthesis unit a, and a carrier data signal to be given to the separation / synthesis unit a, a modulation / demodulation unit b, and various devices D. Interface c for inputting / outputting data, and a power supply unit d for obtaining its own power from the power line 3.

In FIG. 1, in operation, for example, data indicating the amount of fuel supplied from the fuel pump 22 is the power line modem 21.
From the power line 3, the controller 10, the POS terminal 12 and the like in the sales room 2 are notified via the power line modems 9 and 11 to display the amount of refueling and settle charges.

Further, with respect to other devices, it is possible to collect detection signals and data indicating the state, and freely send and receive control commands to the devices.

On the other hand, as a peculiar problem in the service station, the prevention of the occurrence of disasters due to fire must be a top priority. In this respect, since the electric power line modem or the like may generate an electric spark or the like in the internal circuit, the power line modem 21 applied to the fuel pump 22 is covered with a highly airtight cover or It is desirable to cover with a case.

Further, the power line modem 23 applied to the car wash machine 24 is preferably covered with a waterproof cover or a case in order to prevent malfunctions and electric leaks due to water wetting and the like.

[0020]

As described above, in the service station centralized management apparatus of the present invention, each device transmits / receives data to / from another device via a power line set up in the service station store. Since it is possible to replace the equipment, it is only necessary to connect it to the power line via the power line modem, there is no need to change the wiring, it is possible to save the cost required for conventional construction and complete the construction There is an effect that it is possible to avoid service deterioration due to the inability to use the device.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of a service station centralized management device of the present invention.

FIG. 2 is a diagram showing an example of an internal configuration of a power line modem.

[Explanation of symbols]

 1 ... Service station store 2 ... Sales room 3 ... Power line 4 ... Filter 5 ... Power line modem 6 ... Facsimile 7 ... Power line modem 8 ... Information terminal 9 ... Power line modem 10 ... Controller 11 ... Power line modem 12 ... POS terminal 13 ... Power line modem 14 ... Deposit / withdrawal machine 15 ... Power line modem 16 ... Printer 17 ... Power line modem 18 ... External terminal 19 ... Power line modem 20 ... Deposit / withdrawal machine 21 ... Power line modem 22 ... Fuel pump 23 ... Power line modem 24 ... Car wash machine 25 ... Power line modem 26 ... Oil level gauge 27 ... Power line modem 28 ... Induction device 29 ... Power line modem 30 ... Car number reader 31 ... Power line modem 32 ... Vehicle detector

Claims (2)

[Claims] 1. A power line extending in a service station store including a sales room and a power line connecting path for various devices such as a fuel pump, a car wash machine, and an oil level gauge, and input signals of these devices. Alternatively, the service station centralized management device is provided with a power line modem for transmitting / receiving an output signal to / from another device via the power line. 2. The power line modem provided in the power line connection path of the fuel pump is covered with a cover for preventing ignition due to electric sparks, and the power line modem provided in the power line connection path of the car wash machine is waterproofed. It is covered with a cover.
Centralized management device for the service station described.