JPS6216397A - Liquid feeder - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a liquid supply device having a function of transmitting liquid supply information.

(Prior art) As data is frequently exchanged between the main body of the liquid supply device and the p, o, and s devices due to computer processing of liquid supply information, it is necessary to connect these two devices using a transmission line. has been done.

By the way, in the past, the main body of the liquid supply device and the P, O, and S devices were connected by a parallel communication system, which required a large number of conductors in the transmission line, making it difficult to provide wood explosion-proofing to the transmission line. Met.

Therefore, the keypad device for inputting data for controlling the operation of the liquid supply device must be installed in a non-hazardous location, resulting in a problem of poor operability.

(@target) In view of such problems, the present invention has been developed to
, S devices with as few transmission lines as possible, thereby simplifying the data transmission system.

(Structure) Therefore, details of the present invention will be described below based on illustrated embodiments.

FIG. 1 shows an embodiment of the present invention, in which reference numeral 1 denotes a main body of a liquid supply device, and a keypad device W1 to be described later.
The control device 3 receives a control signal from the nozzle switch 2 and rotates the drive motor 6 of the pump 60 in response to a signal from the nozzle switch 5 which outputs an ON signal when the nozzle 4 is removed from the nozzle hook. while sending liquid to the nozzle via
It is configured to integrate the flow rate pulses from the flow rate pulse transmitter 8 provided in the flow meter 7 and display the amount of liquid supplied on the display 9. Reference numeral 2 designates the above-mentioned keypad device, which is provided on the outer surface of the liquid supply device main body l, and includes a card reader 10 for reading data recorded on a magnetic card, a ten-key pad 11 for inputting data such as the amount of liquid to be supplied and unit price, and M. It consists of a function key 12 that sets the control mode, and a display 13 that displays the contents of data input from the card reader 10 and keys 11 and 12, and has two circuits in total: one circuit for power supply and one circuit for signal transmission. A three-core half-duplex communication line (hereinafter referred to as a serial transmission line) consisting of
14 is connected to the control section of the main body 1 of the liquid supply device.

15 is a p, o, s device installed in a safe area such as an office, and is composed of a printer 16 for printing out the amount of liquid supplied, a numeric keypad 17, and a display 18 for displaying data. It is connected to the liquid device main body 1.

FIG. 2 shows an embodiment of the control device 3, keypad device 2, and p, o, s devices 15 of the liquid supply device body described above,
Reference numeral 3 in the figure denotes a control unit, which determines the type of card based on card data input from the keypad device 2 via the serial communication transmitting/receiving means 27. A unit price storage means 21 that stores unit price data, a liquid supply permission means 22 that judges information from a card reader and enables liquid supply, and a flow rate pulse from a flow rate pulse transmitter 8 to calculate the amount of liquid to be supplied. It is composed of arithmetic means 23 for calculating.

Reference numeral 2 designates the aforementioned keypad device, which includes a card check means 24 for determining the type of card based on the card data output from the card reader 10, and a content for selecting a message corresponding to the type of card and outputting it to the display 13. It is composed of a selection means 25 and a display content storage means 26 in which messages to be displayed are stored in advance, and is connected to the control device 3 by a serial transmission line 14 via serial communication transmission and reception means 27 and 27.

Reference numeral 15 denotes a P, O, S device, which compares the card number of the card data sent from the card reader 10 via the serial communication transmitting/receiving means 32.32 with the number of a defective card registered in advance. A discriminating means 28, a card data storage means 29 for storing the number of a defective card, and a supply system for classifying by day, month, liquid type, and customer based on the liquid supply data and card data sent from the liquid supply device. It is composed of a liquid data processing means 30 and a liquid supply data storage means 31 that aggregates and stores classified data, and is connected to the control device 3 by a serial transmission line 19 via serial communication transmitting and receiving means 32 and 32. .

Next, the operation of the apparatus configured as described above will be explained based on the flowchart shown in FIG.

When a fluid supply card is hung on the card reader 10 of the keypad device 3 to operate the fluid supply device (a), the card check means 24 judges the read data (b), and if the data is appropriate, The data read via the serial transmission line 14 is sent to the control device ii! On the other hand, if this card is inappropriate, the display content selection child actor 25 reads the error message data from the display content storage means 26 and displays the error message on the display 13, and the operator Prompts you to load the appropriate card (d),
The data recorded on the card is serial communication transmitting/receiving means 27.27 and serial transmission port! 11
4 to the card type determining means 20, where it is determined that it is a credit card (e)
If the transaction type using this credit card requires confirmation of the PIN code (W), it is output to the keypad device M2 via the serial communication transmitting/receiving means 27 and the serial transmission line 14 (Power).
The display content selection means 25 selects the message stored in the display content storage means 26, displays a password code input message on the display 13, and requests a password code (e.
fart).

The pin code (g) entered from the keypad device 2 is
It is transferred to the p, o, s device 15 via the serial transmitting/receiving means 27, 27, 32, 32 and the serial transmission line 14, 19 (chi, yo, ri). The transferred card data is checked by the card data determining means 28 against the defective card number stored in the card data storage means 29, and the result of determining whether or not this card can be used is transmitted and received through serial communication. Transferred to the control device 3 via the means 32.32 and the serial transmission port [19]
Based on this judgment, if the card is usable, the main body 1 of the liquid supply device is enabled (S, S), and if the card is invalid, an error message is displayed on the display 13 (S, S). For customers who pay by cash, insert a card into the card reader 10 to issue a cash payment command.
When loaded, a command signal is sent to the control unit via the serial communication transmitting/receiving means 27 and 27 and the serial transmission line 14. ! 3, the unit price data is read out from the unit price storage means 21 (wo), and Sf! The price will be displayed when the i-liquid is finished.

When the nozzle 4 is removed when the main body of the liquid supply device is set to be able to supply liquid (N), the nozzle switch 5 is turned ON, the display 9 returns to zero, and the pump drive motor 6 is activated (S).
Then, when the nozzle valve is opened to start liquid supply, the operator 23 integrates the flow rate pulses from the flow rate pulse transmitter 8 and displays the amount of liquid supplied on the display 9, while the serial communication transmitting/receiving means 32. 32 and serial transmission line 19 to the p, o, s device 15 (
cormorant).

When the nozzle 4 is returned to the nozzle hook when a predetermined amount of liquid has been supplied (m), the nozzle switch 5 is turned OFF and the pump drive motor 6 is stopped, and at the same time, a liquid supply stop signal is sent to the serial communication terminal. p, o, s? via the transmitting/receiving means 32 and the serial transmission line 19. Output to position 15 (
)).

When the p, o, s device 15 receives the liquid supply stop signal, the printer 16 prints out the liquid supply amount and issues a slip. At the same time, the liquid supply data processing means 30 processes each item. The total is stored in the liquid supply data storage means 31.

(Effects) As explained above, according to the present invention, since the main body of the liquid supply device, the keypad device, and the P, O, and S devices are connected through a serial communication system, the number of conducting wires connecting the devices is It is possible to reduce this as much as possible and provide wood safety and explosion protection.

Keypad? T! It becomes possible to install the liquid supply device close to the main body of the liquid supply device, and operability can be improved.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of an apparatus showing one embodiment of the present invention, and FIG.
The figure is a block diagram showing the configuration of the same device, and FIG.
It is a flowchart which shows the operation|movement of the same device as the above. 1...Liquid supply device main body 2...Key bar, do device 15...PO3 device 14.19...Serial communication unit 1 transmission/reception means

Claims (1)

[Claims] The liquid supply device main body and keypad device are installed in a hazardous area, while the liquid supply data input/output device is installed in a non-hazardous area, and the liquid supply device main body, keypad device, and liquid supply data input/output device are mutually connected. Liquid supply device connected via serial transmission line