JPS61241244A - Refueling system - Google Patents

Abstract

PURPOSE:To reduce the loading of a refueling device so as to employ a simple configuration by providing an input-output control device which is connected to both a refueling device and each of peripheral devices to control both the input and output data among them. CONSTITUTION:Each of refueling devices 1 and 2 is equiped with a flow meter, the amount of refueled oil measured by the flow meter is outputted as refueling data. A terminal 3 of POS not only computes the amount of money based on the amount of refueled oil but also deals with business transaction such as management of the amount of maney by customer and the like. A card reader 11 reads out the data by customer and outputs it to the terminal 3 of POS. Simultaneously, it allows the terminal 3 to issue a slip based on the amount of money permitting the data for both the amount of money and the amount of refueled oil to be announced from a speaker 5a of a speech synthesis device 5. And the input and output data between the refueling device 1 and 2, and each of peripheral devices 5 are controlled by an input-output control device 6 allowing information concerned to be displayed on displays 6a through 6f.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a refueling system used in gas stations and the like.

[Prior art]

In recent years, many Ganrin stands have installed POS on their refueling equipment.
(Point of 5ale) Terminal, card reader.

A refueling system connected to peripheral devices such as a voice synthesizer has been introduced to improve operational efficiency.

[Problem that the invention seeks to solve]

By the way, the conventional refueling system is a system in which the refueling device is the main component, and peripheral devices are subordinate, such as the refueling device, the PO8 terminal, the refueling device, and the voice synthesizer. For this reason,
In this type of system, the load placed on the refueling device is large, and the refueling device requires a number of interfaces corresponding to the number of peripheral devices to be connected, resulting in a complex structure and functionality. The drawback was that it was expensive.

Furthermore, if the system cannot be easily expanded structurally and the system is expanded functionally too, there is a risk that data input/output processing will become complicated and efficiency will actually decrease.

SUMMARY OF THE INVENTION In view of the above circumstances, it is an object of the present invention to provide a flexible oil supply system that can reduce the burden on the oil supply device, simplify its structure, and be easily expandable.

[Failure to solve the problem]

, F2 In order to achieve the objective, the present invention includes an input/output control device that is connected to each of the refueling device and peripheral devices and controls data input/output between the refueling device and the peripheral devices and between each peripheral device. It is characterized by the fact that it has been established.

[Embodiment] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic diagram without showing the configuration of a refueling system according to an embodiment of the present invention. In the figure, reference numeral 1°2 is a lubricating device, which performs lubricating. Each of these oil supply devices 1.2 has a flow 1S1 (not shown), and after refueling, outputs the amount of oil measured by this flow loss 1 as oil amount data. In addition, 3 is the PO8 terminal, and the refueling device 1.2
The amount of refueling ha is calculated based on the refueling j data outputted from the refueling unit j, and is output as amount data. Further, this PO8 terminal 3 performs business processing such as management of the refueling amount for each customer. 4 is a card reader, and the read customer data is
It outputs to the O8 terminal 3 and also issues a slip based on the amount data supplied from the PO8 terminal 3. Further, 5 is a voice synthesizer, which generates a voice signal based on the refueling amount data outputted from the refueling devices 1 and 2 or the amount data supplied from the PO8 terminal 3, and outputs it from the speaker 5a. On the other hand, 6 is an input/output control device, and the oil supply device 1
．． 2 and peripheral devices 3-5 on a one-to-one basis. This input/output control device 6 controls the input/output of data between the oil supply device 1.degree. 2 and the peripheral devices 3-5, and the input/output of data between each of the peripheral devices 3-5. Further, this input/output device is provided with display devices 68 to 6f, and these display devices 68 to 6f display various information of the corresponding devices 1 to 6, respectively.

Next, FIG. 2 is a block diagram showing the electrical configuration of the oil supply system, and parts corresponding to those in FIG. 1 are given the same reference numerals.

The refueling devices 1 and 2 and the peripheral devices 3 to 5 are each provided with the same interfaces 10 to 14, and each of the devices 1 to 5 is connected to the turnout control device 6 via each interface 10 and 14, respectively. communicate.

The input/output control device @6 has six identical interfaces 1
5 to 20 are provided, and these interfaces 1
5 to 19 each have a one-to-one correspondence with one of the interfaces 10-14. That is, the interface 15 corresponds to the interface 10 of the refueling device 1, the interface 16 corresponds to the interface 11 of the refueling device 2, the interface 17 corresponds to the interface 12 of the PO8 terminal 3, and the interface 17 corresponds to the interface 18 of the PO8 terminal 3. corresponds to the interface 13 of the card reader 4, and the interface 19 corresponds to the interface 14 of the speech synthesis device 5. These interfaces 15 to 19 input data supplied from the CPU 21 to the device 1. - 5 to the corresponding one of the interfaces 10 to 14 (hereinafter, the flow of data from the input/output control device 6 to the devices 1 to 5 will be referred to as "output", and the flow of data in the opposite direction will be referred to as "input"). ). On the other hand, these interfaces 15 to 19 input data from the devices 11 to 5 via the respective interfaces 10 to 14 to the CPLI2.
Supply to 1. In this case, interfaces 15-20
interrupt signal 1 +s~12 when data is input
0 as “11”, CPU2 via A agate 22
Multiply interrupt to 1. This interrupt signal (15 to 12
0 is processed by CPU 21 from interface 15 to 2.
When data is read from 0, it becomes L''. Also, 23
is the interrupt signal register (interrupt register),
It converts the interrupt signals 115 to 12Il into parallel data and supplies it to CPtJ21. By reading the parallel signal supplied from the interrupt register 23, the CPU 21 can determine which interface 15-20 has issued the interrupt. On the other hand, 24
25 is a ROM (read-on memory) in which the program of the CPLJ 21 is stored, and a RAM (random access memory) for data storage. Here, the storage area of the RAM 25 has a configuration not shown in FIG. That is, the RAM 25 is composed of nine areas A1 to 80, where input data is stored in area A1 and output data is stored in area Δ2. In addition, Ehair A3-88 has interface 15 and
20, and data outputted to the interface 15 via the corresponding interface chair of 20 is stored. Area 80 is a work area.

Next, FIG. 4 shows the format of input data in this embodiment. As shown in FIG. 4(a), input data generally consists of a control code C2 and data C3 in this order. Note that the first 5TX (Start of text) of input data
> , ETX at the end of the input data (End of (ext
) is a control code for communication. and control code C
2 has the number S of the device 1 to 5 that is the source of the data, and the number S of the device 1 to 5 that is the destination of the data, and data C3 has the number S of the device 1 to 5 that is the source of the data. 5 to devices 1 to 5 that are data receiving destinations (excluding the data source)
It has data such as refueling 1 and command data for device control, and data P for error checking is added at the end of data C3.

On the other hand, the input data format shown in FIG. 4(b) is a temporary format that involves emergency processing and priority processing, and in this case, a special code C1 is added before STX in the normal input data format described above. and the following STX or ETX
t' indicates that the configured data is emergency processing and priority processing.

Also, the format of the output data is the same as the format of the input data, except that the receiving devices 1 to 5 are not numbered.
It is.

The operation of the oil supply system having the above configuration will be explained using the proach 1 sheet shown in FIGS. 5 and 6.

5TEP1: The CPU 21 executes step SP1 only once when the illumination power is turned on, and each interface/chair 15 to
Interrupt signal 1 of 20 +s~120 is set to ``[-'',
Also, the RAM 25 is cleared.

5TEP2: CPtJ21 writes 1 to specific area i of work area 80. In this case, the number 91 inserted into 1 corresponds to each interface 15 to 20, and i=
1 is interface, [chair 15, i=2 is ink-face 16, i-3 is interface 17, i=4 is interface 18, i=5 is interface 19, i
=5 refers to the interface 20.

5TEP3: CPtJ21 makes a line connection to the device connected to the interface corresponding to the data stored in the specific area, establishes a link state, and
Whether there is data to be sent to the connected device
Outputs ENQ (inquiry) data.

5TEP4: The CPU 21 has a response from the connected device to this ENQ. J3, for example, is about 100 m5ec during this period. At this time, the connected device responds to this ENQ by transmitting the STX that constitutes the transmission data to other devices if there is data to be transmitted, and if there is data to be transmitted with emergency processing or priority processing, the above-mentioned In contrast, if there is no data to be transmitted, a control code EOT indicating this is transmitted to the interface 10 as a response to the ENQ.

5TEP5: The CPU 21 reads the response from the connected device i via the interface 10, and determines whether there is data to be sent from the connected device to another device.

ST[EP6: CPtJ21 checks whether ETX has been input.

5TEP7.8: The CPU 21 checks whether an error has occurred during transmission based on the error check data P input as part of the transmission data.

5TEP9: Air A3- of other connected devices to be sent according to the control code C2 in the sent data.
It is distributed to 88 areas and written as output data.

5TEP10,11: The CPU 21 checks whether or not there is output data in the area corresponding to the number stored in 1 among areas Δ3 to 80.

5TEP12: Increment the number stored in i by 1.

5TEP13: CPtJ21 determines whether the addition result exceeds 6 or not.

5TEP14: CPtJ21 connects the line to the device connected to the interface corresponding to the data connected to specific area 1, establishes a link state, and may output data to the connected device. Inquire whether

5TEP15: CPjJ21 has a response from the connected device to the inquiry. Please note that during this time,
For example, it is about 100m5ec. At this time, the connected device returns an ACK if it is in a state where it can receive data, and returns a NACK if it is in a state where it cannot receive data.

5TEP16: CPLJ21 checks whether ACK was returned or not.
Determine whether NACK is returned.

5TEP17: CPtJ21 transfers output data to area Δ2
and supplies it to the interface corresponding to the number stored in i. This causes output data to be output from the corresponding interface to the device connected thereto.

5TEP18: CPLJ21 has a response to the output data from the device. During this time, for example, 1001 Se
It is about C.

5TEP19: CPLJ21 determines whether re-output is necessary based on the response sent from the device.

5TEP20: The CPU 21 clears the area where the output data was stored.

Next, devices W11 to W11 connected via interfaces 15 to 20 will explain the flowchart shown in FIG.
The Cr'U21 performs the processing of reading data from 5 by interrupt processing. That is, when transmission data is generated from a connected device, an interrupt signal is input via the interface.

This interrupt signal is generated by the transmitted data 4. In this case, regardless of the input request shown in Sr1 of the main routine, each time one character of transmission data is transmitted from the device that generated it to the input interface, the corresponding interface sends it. Therefore, when transmission data is generated in any connected device via the OR gate 22, the CPU 21 is interrupted and performs the interrupt process shown as data interrupt process in FIG.

5TEP21: The CPU 21 registers the interface of any device connected via the interrupt register 23.
It is determined whether the interrupt signal is output from .about.20.

5TEP22: The CPLJ21 determines whether or not this interrupt signal is an interrupt signal from the device 1 set in the specific area shown in the main routine SP2.

5TEP23: CI) U21 reads the transmission data from the interface, including the transmission data (data for the transmission unit).

5TEP24: The CPU 21 determines whether the main routine shown in FIG. 5 is currently receiving responses corresponding to Sr4, 5P15, and 5P18.

5TEP25: The CPLI 21 shows no confirmation that the corresponding response data has been read, and stands up.

5TEP26: Determine whether the read data is the special code C1.

5TER-'27: The CPU 21 writes the read data to area A1.

5TEP28: The CPU 21 checks whether the written data does not indicate the end of transmission and is ETX.

5TEP29: The CPU 21 sets a flag indicating the end of data.

5TEP30: The CPU 21 reads the transmission data, that is, the first data, from the interface.

5TEP31, 32: CPU21 is special]-C
Determine whether it is 1 or not.

5TEP33: The CPLI 21 outputs a retransmission request to the input device. When the device receives a river transfer request, it stops inputting data, and starts inputting data the next time IENQ is output.

5TEP34: CPU21 is emergency processing L! l! (Display on the back of the display devices 6a to 6f corresponding to the device for which the emergency processing request was made, etc.).

(Effects of the Invention) As explained above, according to the present invention, the input/output device is connected to each of the refueling device and the peripheral devices, and controls the input/output of data between the refueling device and the peripheral devices and between each peripheral device. It is possible to reduce the burden on the oil supply system by easily connecting it to the control device.In addition, it is only necessary to equip an interface for sharing the oil supply system and peripheral equipment, which simplifies the structure and reduces the equipment price. In addition, the system can be changed and expanded extremely easily.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing the configuration of a refueling system according to an embodiment of the present invention, FIG. 2 is a block diagram showing the electrical configuration of the refueling system, and FIG. 3 is a diagram for explaining the internal configuration of the RAM 5. 4 are diagrams for explaining the format of input data, and FIGS. 5 and 6 are flowcharts showing the operation of the oil supply system. 1.2...Refueling device, 3...PO8 terminal, 4...Card reader, 5...Voice synthesizer (3 to 5 are peripheral devices) ), 6... Input/output control means.

Claims (1)

[Scope of Claims] A refueling system that performs refueling and processes data related to the refueling, comprising (a) a refueling device that performs the refueling, and (b) a plurality of peripheral devices that process the data related to the refueling. (c) an input/output control device to which the refueling device and each of the plurality of peripheral devices are connected, and which controls data input/output between the refueling device and the peripheral device and between each of the peripheral devices; A refueling system characterized by: