DE2445165A1 - CONTROL AND DATA SYSTEM - Google Patents

Description

The central office can also enter new data into the tank part data system. Means are provided which interrupt the data transmission for a limited period of time in order to allow a limited operation of the dispensing devices, "other means are provided to automatically enter data - such as the amount of petrol in the tank - into the petrol station memory, and" In operating ¹¹ - and "Ready ¹¹ signals for each dispenser and a Notabachaltfunktion provided.

The present invention relates to a control and data storage system and in particular such a system which is suitable for the control of the dispensing of liquids as well as the Storage and recovery of data with regard to the submitted Amounts of liquid.

Petrol stations are usually with several - for example four petrol tanks equipped, each with a suction or submersible pump to gasoline to a large number - for example. 16 - or more to pump from gas pumps. Each fuel pump is equipped with a hose, a filler neck with manual valve and a manual switch to turn the fuel pump on and off. There are counters on the petrol pump that show the amount of petrol dispensed as well as visibly display the total sales price in dollars. The cumulative fuel quantities and sales amounts are also displayed.

Self-service stations have set up for the individual dispensing of petrol have been found to be more and more desirable as they offer significant savings in operating costs. In many such At petrol stations, the meter in the petrol pump drives an impulse generator, the impulses of which are sent to a central monitoring conspire go where a remote display of the amount of fuel dispensed and of the respective sales price. In this way a single petrol station attendant can supervise the operation of several petrol pumps at the same time and receive the payments for them. .

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In order to meet the need for monitoring and control systems for such self-service filling stations, a number of

Systems have been worked out. One such system is disclosed in U.S. Patent 3,598,283 (Krutz et al.). wherein means for presetting the sales volume on the column. A pulse generator on the column generates pulses that are sent to the console of the Tank attendants are counted and collected; at the same time there is a visible display so that the gas station attendant can visually record the sales volume.

U.S. Patent 3,437,240 (Keeler) discloses another system in which the. Total amount of a gasoline sale to a remote one Place is given. The same is true of U.S. Patent 3,402,851.

Most prior art systems use a separate display for each column. The system of U.S. Patent 3,632,988 (Tamawaki et al.) Sees the storage of signals from a large number of columns in a memory and the selective selection of the memory to view the data for a particular column.

Im! "All of a gas station owner who owns several gas stations, it is often difficult to operate the filling station, especially if the filling stations are spread out over a large area fully monitor. For planning purposes it is desirable Complete documents for the sales activity and the sales conditions are available at all petrol station locations to have and to be able to the gas station attendant immediately of price changes and other operational circumstances to be able to inform. So far, collecting such data has only been time-consuming - letter post or telephone Call - possible and the accuracy of the information received from gas station attendants was difficult to verify.

There are systems for various control and monitoring functions between a main station and several substations or

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other delivery points. For example, the US PS teaches 3 IJO 867 (jacket) measurement and delivery control system for pipelines, in which the main station is to be delivered to different locations Preset the amount of liquid and the counter at the delivery points to determine the amount delivered Can query quantities. It is possible to monitor and control a large number of stations. Farther Means are provided to visibly display the sales quantities in the main station.

However, no system has yet been created within the framework whose one central office completely and immediately operates a number of locally distributed self-service filling stations can monitor - including the delivery quantity and sales amounts each fuel pump, the fuel supply and other data important for operational planning - and at the same time in is able to ensure the accuracy of the information recorded. Also, no system has yet been developed that allows a single attendant to oversee the sales operations of a variety of pumps, including a temporary data storage regarding the previous sale and its retrieval, and the gas station attendant at the same time there is the possibility of checking the fuel supply and the water level in the various storage tanks instantly ascertain.

Ss is an object of the present invention to provide a control and Data system for controlling the dispensing of liquids, monitoring the quantities dispensed, adding up the dispensed Specify quantities and transferring the data to a central office.

In particular, it is an object of the present invention to provide a novel control and data system for a self-service filling station in which a plurality of filling pumps is controlled and can be monitored using a digital computer capable of temporary and permanent storage of the data of each pump as well as for retrieval and visual

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Representation of sales and also for storing on an ongoing basis updated information on the amount of gasoline remaining in the storage tanks is programmed. Additionally Means are provided by means of which data can be entered by the gas station attendant or the remote central office and the memory of the computer can be queried from the remote central office.

It is another object of the present invention to provide a fuel pump control and data to specify a system that allows a fuel pump to be reset for operation by a second customer and enter the amount into permanent memory during the previous one Sale is entered into a temporary memory and can be visually displayed after v / ahl by the gas station attendant.

Another object of the present invention is to provide a system which allows the gas station attendant to select certain permanent storage locations, while only the central office for others Has access, the accessible and the inaccessible storage locations containing redundant data for data verification.

It is a further object of the present invention to limit the operation of fuel pumps during data transmission from the gas station to the central office, which prevents the gas station from operating during data transmission needs to be interrupted.

These and other objects of the invention will become apparent from the description which follows, one of which is preferably embodied Form of the invention explained with reference to the accompanying drawings.

fig. 1 is an isometric, somewhat simplified view of an installation for practicing one form of FIG present invention;

Fig. 2 is a block diagram of the essential parts of an embodiment the plant according to the present invention;

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Figure 3 is a block diagram of the electrical circuitry used in the each fuel pump according to an embodiment of the invention are assigned j

Fig. 4 is a block diagram. a device for recording, storing, Processing, visible display and transmission of data from the fuel pumps?

Fig. 5 is a perspective view of a device on the pillars of a self-service gas station for conversion the rotary movement of the mechanical counter in the column converts into electrical signals for transmission to a Central point of the petrol station are suitable j

FIG. 6 is a sectional view taken along the device of FIG the line 6-6 of Fig. 5 |

FIG. 7 is a circuit diagram, particular * in FIG. 3 schematically shown stages;

FIG. 8 is a circuit diagram of further stages shown schematically in FIG. 3, and the

FIG. 9 is a circuit diagram of further ones shown schematically in FIG. 3 Stages.

For simplicity and ease of understanding, the preferred forms of the present invention are intended to be embodied described here in their application to self-service filling stations " although it will be apparent to those skilled in the art that the invention can be applied to the dispensing and sale of other liquid and can also be used for gaseous and solid products.

Furthermore, the description relates to an arrangement with a central office and a large number of locally distributed gas stations to which the central office sends data and from which the central office records data on request. Such different However, these combinations and sub-combinations are also, for the individual petrol stations can be used if there is no central door. For this reason, the present invention should not be construed as being limited to gas stations that have a Central office communicating.

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In the preferably embodied form of the present invention to be described in detail "hereinafter," is on a local gas station a device for controlling one or more fuel pumps for receiving, displaying and storing Data for the inventory of gasoline in the tanks, for Transfer this and other data entered by the gas station attendant to a central office and for transferring data from the central office arranged to the gas station. The term "petrol pump" is preferred to "petrol pump", as it is used in most petrol stations Submersible pumps are used to pump the gasoline to the various fuel pumps and the fuel pumps themselves do not Pumps included.

The usual fuel pump is equipped with a flow meter, the one meter with two output variables, namely the amount of liquid dispensed (in gallons or liters) and the sales price (in dollars or DM). These output variables are entered in separate registers, which they register as they arise show visibly. They are also added to a cumulative display. In some cases, the Register mechanically driven by the flow rate measuring device, in others a pulse generator - e.g. a Magnet and a reed contact, which are attached to the flow rate measuring device are assigned - pulses that the counter evaluates. In any case, the counter and register have two output waves: one rotates at a speed proportional to the flow rate register, the other at a speed proportional to the price register proportional speed.

According to the present invention, there are those previously described Functions achieved by a system that contains pulse generators that are driven by the proportional waves of the register counters of the fuel pump driven, one pulse generator being proportional to the amount of liquid dispensed and the other pulses Impulse proportional to the recorded and displayed price. generated. These pulses are transmitted to counters. Furthermore, a console with a keyboard and various visual

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»provided devices, the keyboard and the viewing means are a central processing unit which is part of a digital microcomputer connected to various memory locations" The operator can, simply by pressing the number keys on the Tas% ture corresponding to the number of a selected gas pump ", the number the unit of measure and the amount of money of a sale that is currently taking place or has just been completed at this petrol pump. Furthermore, the operator can reset the output device for a further sale. When resetting both pulse counters return to zero and the previous sale is entered into a temporary memory for retrieval and display on the console Sales added, which is stored in two separate memory locations, one of which is accessible to the gas station attendant and the other only accessible to the central office. Means are also provided by which the total amount in the first of these storage locations - for example at the end of each shift - can be read into and out of a third memory, so that the central office can query the data system of the petrol station at any time during the following shift Determine the total sales amount during the previous shift.

The data system of the petrol station also has a data entry mode, at the gas station attendant data in some of the memory locations can store. For example, the Zen.tralbu.ro may want the gas station attendant to enter data that shows the sales price of a Competitors, weather information, maintenance difficulties, Represent personnel problems, etc.

Means are also provided in order to be able to automatically enter data in various memory locations which represent the gasoline supply in the tanks of the gas station, these

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Information is provided, for example, by a device as it is in the aforementioned US patent application by the same applicant is revealed.

Precautions are taken in the event of a power failure to protect the memory contents automatically. In addition, the device is equipped with an emergency shutdown function, by means of which the Gas station attendant can stop the entire dispensing operation in the event of a fire or other emergencies.

In the central office there is a computer that uses a conventional telephone line to store the petrol station computer's memory a coupling unit and a printout of the in any of the memory locations of the gas station computer can effect stored data. i / V during such an interview A lamp lights up on the Taiik station console and indicates that data transfer is taking place. The attendant can neither enter nor enter data during the data transfer Retrieve sales data from temporary storage. However, he can temporarily interrupt the data transfer in order to Reset fuel pumps and retrieve the previous sale when he wants to receive the corresponding payment. To this It is also possible to operate the fuel pumps to a limited extent during a survey by the central office.

In the following description, a gas station with 16 fuel pumps is supposed to be and four petrol tanks are discussed. CLe, however, can be seen the devices and the system can be adapted to a smaller or larger number of fuel pumps and tanks as required will.

Fig. 1 of the drawing shows graphically and schematically a preferably executed form of the parts of the system according to the present invention. The console 10 is connected to an electronics cabinet 12 and a data coupler 14, in the embodiment shown directly to a telephone line 16 is connected. The electronics cabinet

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It maintains supply current from a power supply unit 18 which provides the 110 V final alternating voltage (Nets connection 20) implements and regulates. Farther is an auxiliary power supply - e.g. in the form of a rechargeable Accumulator 22 - provided, the electrical in case of power failure Provides power that is required to save the contents of the memory. A standard 8 V battery cell can be used here will. The data entry for the. Electronic storage is carried out by the Gas pumps, one of which is shown at 24, and of the level sensors and transmitters, one of which is shown at 25 is.

The console 10 has a conventional numeric keypad and keys labeled "Reset", "+", "Emergency Stop "," Enter "," Recall "and "Clear". A key switch 28 has the two positions "Pump Control" and "Data Entry" (Data entry). A lamp 30 is provided to indicate when data is being transferred from the station to the central office, and a lamp 32 indicating a transmission of new data from the central office to the station a button "Shift Change", the character 31 a button "Transmit Interrupt" (interruption of the Data transfer).

I ¹ Each output device has a "Ready" lamp and a "Jn Use" lamp 34 and 36, respectively. Furthermore, three different numbers can be displayed at 38, 40 and 42 on the console Two digits can be displayed at 38, three digits at 40 and five digits at 42. These can be conventional 7-segment digit elements (with light-emitting diodes such as the MAN-IO type from Pa. Monsanto) , G-limmzifferröhren or other suitable number display devices.

The fuel pump 24 is provided with a conventional hose with a filler track 44 and the conventional manual switch 46, which must be turned on before gasoline can be dispensed.

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In addition, the output device has an encoder 48, 'the pulses corresponding to the monetary value of the sale, and a Encoder 50 which delivers pulses according to the amount of petrol dispensed.

In the pig. 2 the essential components of the system according to the present invention are shown as a block diagram. It there are 16 different fuel pumps - labeled 24-1 to 24-16 and Trier different level sensors - labeled 25-1 to 25-4 - shown. The fuel pumps are supplied with fuel by one or more submersible pumps 52. The column electronics picks up signals from the fuel pumps and also sends signals to them. The column electronics also provide signals for energizing the submersible pumps so that gasoline is pumped to the fuel pumps if necessary, iflfie is explained further below Means are also provided with which the fuel pumps can optionally be operated independently of the electronics, see above that a signal can be sent directly to the submersible pump from any of the fuel pumps to operate it.

The level computer 56 receives the output signal from the level transmitter recorded and processed there; one form of this calculator is disclosed in the referenced U.S. patent application.

Via the coupling unit 58, which provides suitable connections to a digital small computer 60 and a display device 62 with a keyboard, the data from the column electronics 54 and from the level calculator are given to the small computer 60, which via a modem 61 and a conventional data coupler 14 a telephone line 16, a 3-way line or the like is connected to a computer 64 (H ¹ Ig. 2) in the central office.

The electronics of the fuel pumps

The I ¹ Ig. 3 shows, schematically and as a block diagram, the electrical circuit arrangement which is used for the operation and monitoring of an individual fuel pump 24. The same or equivalent arrangement is made for each of the

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remaining fuel pumps used.

As already mentioned, the fuel pump 24 contains the encoders 48 and 50, which in the preferred form consist of the perforated disks 60, 67 which are mounted on the output shafts of the (not shown) output counters sit and rotate with them, so there the. holes in it between a light emitting diode 68 and a Phototransistor 69 pass through, each with a light emitting diode and a phototransistor form a Photoko.ppler which is used in the preferred embodiment of the invention as an encoder. Others known from the art can be used Encoders are used - for example, rotating magnets with a reed contact; the perforated disc encoder described above finds however, because of its accuracy yorzug. Ss is on the A variety of photocouplers are available on the market that are suitable for the application at hand «. An example is the one with the part numbers SD-1440-3 and SE-1450-3 from Spectronics, Inc. sold photocouplers.

The pulse drivers YO, 71 are connected to the photocouplers, supply the light-emitting diodes with output current and pick up, amplify and transmit the pulses from the phototransistors Further. The output pulses of the pulse drivers 70, 71 run by the pulse shapers 72 and 73, which are essentially Schmitt triggers. Distribute the pulse shapers the signals have a hysteresis in order to suppress interference voltages and mechanical shock or vibrations of the panes 66, 67 to compensate. The output pulse trains from the pulse shapers pass through gates 74 and 75, respectively, and then to the Price counter 76 and the quantity counter 77. These are preferably decade counters, which keep the count in the Save 4-bit BCD code.

The price encoder 48 is preferably designed to generate one pulse for every $ 0.001 of fuel dispensed generated, the quantity encoder 50 so that it generates a pulse for Generates 0.01 gallons or liters of fuel dispensed.

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So that the counters count up to 99 »999 and 99.99 gallons the price counter preferably consists of five decade counters and the quantity counter consists of four decade counters. The data will be from these decade counters are read out via the gate circuit 98.

As can be seen, although the totalizer has four significant Digits count, only three are visible. This is enough for sales purposes, since customers turn to hundredths of the gallon are not interested and the tens digit is rounded up or down. The sums held in memory however, are accurate to one hundredth of a gallon. The dollar price is displayed to three decimal places, so that the requested price can be rounded up or down to the nearest gent.

tfie known from the art, the meters must be in the fuel pumps reset to zero after each sale before more gasoline can be dispensed. The provision is made by a manual switch which - see 46 in FIG. 1 - is arranged on the receptacle for the filler tap. This switch closes when actuated, a circuit in which a reset motor 78 (see Pig. 3) is located, so that the reset motor controls the counters resets to zero. The same the shaft of the reset motor rotates a cam that, when the counters are set to zero Normally closed contact 79 in the circuit of the reset motor opens, so that the motor stops. The contact 79 is coupled to a normally open contact 82 such that when the contact 79 is open Contact 82 is closed. Furthermore, the contacts 79 and 82 are coupled to a manual switch 46 such that when open Switch 46, contact 79 closed and contact 82 opened is.

According to the present invention, the circuit includes another switch 80 for the reset motor. This is a three-position switch that is set to "Automatic", "Off" and "Manual" can be set. In the "Manual" position, the current

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circuit of the reset motor grounded and the fuel pump can be on can be operated normally without using the console to be reset. If the switch is set to "Off", the fuel pump cannot be operated while in the Switch position "Automatic" the control according to the present invention takes over the operation.

If switch 82 is in the "Manual" or "Automatic" position, "In Use" appears on line 84 -Signal. The branch 83 from this line to ground via the switch 80 contains a relay coil 85 which, if the "In Use" signal is present, keeps the hot contact 87 closed, which supplies the submersible pump with 220 V AC. Furthermore ent ~ The junction 83 holds the diode-OR gates 89 and 91 »those with the corresponding branches of other fuel pumps for the the same type of gasoline are connected, so that for each type of gasoline a single relay coil 85 with contact 87 with a single Pump can be used.

An isolating circuit made up of a photocoupler 86 - for example type MCT2B the IPa. Monsanto provides the electrical separation between the mains voltage on line 84 and the low logic voltage for the rest of the circuit. The output of the photocoupler isolation circuit goes to a delay network 88, which generates an "in use" output signal simultaneously with the "in use" signal at its input, the end of which however a short time - preferably about 1.5 seconds - delayed from the end of the "In Use" signal at the input. This delay allows the further transmission of pulses generated after contact 46 is opened, as happened can if the contact opens while gasoline is still flowing through the filling nozzle. The "In Use" output signal is off the delay network is applied to a lamp driver 90 which illuminates one of the lamps 36 on the console to indicate to the attendant that this particular pump is in use.

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The "In Use" signal is also sent to the Triac gate 92 given. The output signal of the triac gate is a switch-on signal, that via the photocoupler isolating circuit 94 - for example, type HIIG1 from Pa. General Electric Company - on one Triac switch 96 is given. The triac switch provides one for the reset motor circuit and relay coil 85 Establish a ground connection when switch 80 is set to "Automatic". The "In Use" signal to pulse drivers 70 and 71 serves as the Control signal that is transmitted via an optical isolating circuit that provides electrical isolation to meet the safety requirements causes the pulse driver to switch in a dangerous environment. The "In Use" signal sets the "Ready" flip-flop 100 to "not ready for operation" and the gate 102, which prevents a reset signal from triggering the "ready" flip-flop 100 to put. The "In Use" indicator also goes to gates 74 and 75, toggles them through and allows it allows the pulses from the pulse formers 72 and 73 to be read into the decade counters 76 and 77. The "In Use" signal is generated even when switch 80 is in the "Manual" position. With manual operation of the output device the generated pulses are consequently counted by the counters 76, 77.

Other parts of the system shown in FIG. 3 will now be explained although their function and operation will only be explained in detail when the illustration in FIG. 4 is described has been. The gate circuit 98 is used to read out the stored BCD count of the counters 76 and 77. On “Ready” flip-flop 100 receives the “In Use” signal at one input and a signal from the other at the other Gate 102, which is activated by a "Power on" signal from circuit 104 or, if there is no "In Use" signal, a "device select" signal accompanied by a "reset" signal is switched through. After a power failure, the "Power Up" sends the power back on a pulse to all decade counters 76, 77, to their

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Set outputs to Hull. This is necessary because, when voltage is applied to the integrated circuits used in the preferred form, "the initial state of the counters is initially unpredictable."

The output of the "Ready" flip-flop 100 is given to an "Eeady" lamp driver 108, the "Ready" lamp 34 on the console lights up ι at the same time the signal goes to the triac gate 92. The third input to the triac gate is this "Emergency Stop" signal on line 110.

The petrol station electronics

The Jfig. 4 shows the gas station electronics that is connected to the electronics of all petrol pumps via the terminal unit 58 _5, as shown in the Figure "3"

The heart of this system is a microcomputer, for example of the type MCS-4 from Intel Corp ", Santa Clara, Calif., Which is described in the" User Manual " from March 1972 is described. This unit contains a central processing unit 114, a memory 116 and a program control 118. The central processing unit is available via a transmission connection unit from the Modem 61 and the data coupler 14 in connection with the central office » The data coupler can be, for example, a type 1001A GBS, as it is from the Pa. Bell Telephone Company is rented, and the modem can be a model 7113B from TeIe-Dynamics Act.

The commands run from the keyboard 26 (see FIG. 1) the central processing unit. The keyboard for The data selected for the visual representation are converted from the BCD code to the decimal representation by the central processing unit recoded and given to the various viewing units of the console 10 via the driver 122 »

To the contents of a counter 76, 77 one of the fuel pumps or Data from one of the level sensors 25 to the central processing

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To give processing unit, a data bus line 124 is provided. The transmitted data are processed in the multiplex to pass through one digit after the other, because the Transmission speed is immaterial here. The data bus consists of four parallel signal lines, the are electrically parallel, i.e. each of the four conductors is electrically connected to each of the 16 output gates of the 16 fuel pumps and each of the four level transmitters in connection. As a result, the four signal lines of the data bus carry that 4-bit BCD output signal in parallel and at the same time the 4-bit BCD output signal from one of the counters or one of the encoders. For distribution the data in the central processing unit is used by the driver 126.

The counter or encoder whose data is to be transmitted is determined by a "Device Select" signal, which is generated by pressing the cursor keys on the keyboard. In response, the central processing unit feeds an identification signal to decoder 128 which decodes the signal; and a "Device Select" output signal to the selected counter board or the selected level transmitter. The central processing unit is programmed to that it carries out the data transmission in the multiplex, and they consequently sends a series of "Digit Select" signals to the "Digit Select" (position selection) decoder 132, which sends an output signal to one of the four "Digit Select" (position selection) Lines 134 supplies. A buffer 136 consists of one Driver for the keyboard by the processing unit transferred data; it supplies an “Energency Stop” (emergency shutdown) signal on line 110 and on line 140 a "üesef'dlückstell) signal.

Has in a data system for 16 fuel pumps and 4 petrol tanks a memory with, for example, 160 storage spaces has sufficient capacity. Each space should be able to accommodate eight BCD-coded position of 4 bits each, i.e. to include 32 bits. The memory locations can be used, for example, as follows:

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-IS-

O free

1-16 for the 16 'lazy pillars on totaled sale βίο et rage
17 - 32 for the 16 fuel pumps on total sales

quantityii
33 - 36 fuel levels in each of the four tanks

37 free

38 - 74 at the end of the layer from the storage locations

1-37 read in data 75 - 106 free

107-110 gasoline levels in each of the four tanks

111 free

11k - 127 totaled sales amounts for the 16 fuel pumps

128 - 143 Sales amount, temporary storage on demand 144 - 159 sales quantity, temporary storage on demand

operation

The system of the present invention has two modes of operation, namely "Pump Control" and "Data Entry", which are each determined by the switch 28 on the console. At this point, a chimney switch is preferable, to prevent data entry by unauthorized persons. In the "data input" operating mode, the program control ensures that the xanKwart data in each of the storage locations 0 to 99 Press the keys corresponding to the respective memory location and then press the keys corresponding to the data to be entered Keys can enter. Data entry is completed by pressing the "Enter" key. Preferably If only two digits are provided for selecting the storage locations, the gas station attendant only selects storage locations 0 to 99 scan. Data from up to eight digits can be entered in BOD form in the data locations. In this operating mode the program control prevents the fuel pumps from being reset and the data from the column counters or level sensors being read out. The fuel pumps and dispensing meters are not, however

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prevented from working.

In the "data input" operating mode, various of the free, memory locations specified above for entering certain data. For example, the storage space 0 can be used for the Telephone number of the gas station or another identifier can be used and the memory location 75 for specifying the sales price of a specific competitor.

When you press the buttons, the memory location identifier appears first the viewing unit 38 on the console and then the others entered data, which is stored at this point in the central processing unit, on the viewing units 40 and 42. The attendant can therefore check his data entry to make sure that it is free of errors and then press the key Press "Entry" to finally read the data into permanent memory. If the vision unit shows a faulty one Input, it can be cleared by pressing the "Clear" key. Data that has already been saved can be displayed by selecting the appropriate memory location and then pressing the "Recall" button.

If the system is installed, it is desirable that the Storage locations 1 to 32 stored totalized amounts and quantities correspond to the totals in the totals registers of the fuel pumps. These data are included in the Position "Data Entry" (data entry) set switch 28 is stored. For the fuel pump 10, the number "10" is first designated with the keyboard, so that the viewing unit 38 indicates a "10". Then the keys corresponding to the amount in the output register are pressed and this value becomes represented by viewing units 40 and 42. After reviewing these questions the "Enter" key is pressed to accept them to save.

Then the memory location 26 is selected and you press the. and keys corresponding to the total amount in the output register saves this sum. When all the fuel pumps are in

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.Betriebsbersitsehaft, the key switch 28 can be in the division "Pump Control" can be placed; the The system is then ready for operation. Me program control prevents data entry with the keyboard in "Pump Control" -Operation "

Initially, each fuel pump must be reset in order to make it ready for operation. When the power supply is switched on, the delay circuit 88 sends a brief "In Use" signal, which causes the Heady "(ready for use) flip-flop 100 to be" Not Ready ". It is therefore necessary to reset each output unit by pressing the buttons on the console that correspond to the number of the fuel pump, followed by pressing the "Reset" button. Switching on the power supply resets all counters to zero, and the data in memory locations 1-32 are not disturbed by resetting the fuel pump central processing unit and the "Device Select" (device selection) decoder 128 a "Device Select" (device selection) signal _if that on the output gate 98 of the selected fuel pump and to the gate circuit 102? which turns on the "Ready" flip-flop.

The "Ready" (ready for operation) flip-flop 100 is set to "Not Ready" (not ready for operation) and by an "In Use" signal This gate circuit is set to “ready” by a signal from the gate circuit 102, as already mentioned in the absence of an "In Use" signal by means of a "Reset" and "Device Select" signal or switched through by a "Power Up" signal. Then the "Ready" flip-flop switches to the "Ready" state so that the lamp driver 108 energizes the "Ready" lamp can. In addition, a "Ready" signal is generated

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given the x'riac-Gatxer 92 that makes it possible to add a petrol pump use.

The initiation of an "In Use" signal when the Switch 82 closes after the reset motor cycle of operation was initiated by closing the hand switch 46, causes a change in the status of "Ready" -]? lipflopa 100 to "not ready" (not ready for operation).

Additionally, the "In Use" lamp is energized and the gates 74, 75 leading to the decade counters 76, 77 are turned on switched through so that the pulses from the pulse generators 46, 50 can be counted, vi / eiterhxn the "In Use" (in Operation) signal to the triac gate 92 given by an "In Use" or a "Ready" signal switches through if there is no "Emergency Stop" signal is present. The "In Use" signal activates the triac gate 92, the photocoupler isolation circuit 94 and the triac switch 96. If the switch 82 is closed, the relay coil 85 is energized, so that the contact 87 closes and power is supplied to the Motor of the submersible pump supplies.

After completion of the output "operation, the customer switches off the manual switch 46. Then the" In Use "signal disappears after a short delay, since the switch 82 is then open and the triac gate 92 is no longer switched that is, the output for a single sale has ended, the triac switch 96 opens and remains open until a "reset" command is received from the central processing unit ) -i ¹ lipflop only jumps to "ready" when the "reset" command is received, just closing the manual switch 46 does not cause an "in use" signal, since the triac Switch is open and therefore the reset motor circuit is not grounded, so when the triac switch is open the central processing unit must issue a "reset" command to reset the

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Resetting the "Ready" flip-flop and thereby switching the triac gate through, which then closes the triac switch before the fuel pump can deliver fuel again. The "Reset" command is initiated by a key on the keyboard, but is only given by the central processing unit to the "Ready" flip-flop when the content of all! Decade counters 76s, 77 via the data collection line 124 has been passed to the central processing unit. If this transfer has taken place, the central processing unit sends the "Äeset" (reset) command to the gate circuit 102 and thus to the "Ready" (operational) flip-flop, as a result of which a hold-through signal is sent to the triac gate, the triac switch closes and the counters 76, 77 are reset to zero. So the "reset" command suspends both the counters _? also the petrol pillars, returned to the idle state.

To the electrical power requirements and also the requirements to reduce data processing, the operating format of the central processing unit is preferred for the Embodied form of the present invention selected so that the content of only a single decade counter the counters 76, 77 are read out for only one fuel pump at a time will.

Reading out and resetting the counters 76, 77 when the "Reset" key is pressed on the keyboard is carried out by the Program control. The central processing unit therefore selects the one corresponding to the column to be reset on the keyboard Keys are printed, the special associated address code. With the explained here preferably executed According to the invention, a total of sixteen fuel pumps and four underfloor petrol tanks can be monitored Input signal sources are stored in binary so that they can be selected these 20 input signal sources use a 5-bit binary format is used, which can accommodate up to 32 different addresses. Sin "Device Select" (Yorrichtuiigswahl) decoder 128 in the form

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• a 5 to 20 decoder selects one of the sixteen fuel pumps or one of the four level transmitters for reading into the central processing unit the end. This signal turns on the four output gates 98 of the selected device and allows the 4-bit BGD data word of a specific counter, read out in parallel to become. In the preferred embodiment of the invention, however, the 4-bit BGD data word must also be read out a "Digit Select" signal is present. The positions are selected one after the other by the program control. So around a 4 to 10 digit selection decoder is used to determine which of the nine decade counters in the counters 76, 77 is to be read out 132 used. The output of each decade counter is a 4-bit BCD word that is one of nine decimal digits the counter represents. The 4-bit output signal is derived from the selected counter read out in parallel. Accordingly, a 4-bit parallel output signal is from each of the level transmitters in the Tanks available.

Although both a "Device Select" (device selection) and a "Digit Select" (position selection) signal to the electronics board a fuel pump must be sent so that data is sent on the data bus to the central processing unit none of these signals is required to start the fuel pump itself or the meter to activate the encoder pulses to record and count.

#if a sale is taking place or after it has ended and Before the reset process, the sales amount can be visibly displayed by marking the corresponding fuel pump Pushes buttons. The program control has the effect that "Device Select" (device selection) - and "Digit Select" (position selection) Signals go to output gates 98 to allow the content the counter 76, 77 can be read; however, there is no data transfer to the memory. Caused when resetting the program control that the amounts in the counters to the content of the memory in the memory locations 1 to 32 for the respective fuel pump must be added. At the same time

50 9 8U / 0352

the sales price in the store 76 is added to the amount that is stored in the corresponding memory location 112 for 127 ο In addition, the in -ssb. Zaiiiera standing values are temporarily stored in the corresponding storage platters of Mums 128 to 159. ₀

By Briiekas. The key, Miimraer d @ r Saslcsäml © and the "SecaH ⁰⁹ (Abruf) -Säst®" then shows the amount of the sale made.

After completing the next? @ Rksiii @ and an additional iiiiokstellTor-aisle are stored temporarily Amounts by di @ dea new cash purchase are replaced.

The Puff / he takes a 156 "Emergency Stop" (Notabsohalt) command contrary, when the 'i'aakw & rt "Emergency Stop" (Iiotabschalt) key on the keyboard pressed "Serves di®ü _p? IIRD the triac Grattsr locked ₉ which opens the I'riae switch. The "Emergency Stop" (engine shutdown) »Signal is given to all® counting boards of the fuel pumps at the same time«

The hot coil 85 is made of any one via the OBEH-G-song 89 the petrol pump-a. excited for the same type of bensin. The relay coil 85 thus closes the KontaMe 87 and energizes the submersible pump ismier? if any © of the gas pumps for the same Petrol type is put into operation. About the OR gate 91 can do everyone see Hückstelliaotojr steer independently? the relay coil however, it cannot be switched off * = if another fuel pump is used is in operation for the same type of user. Gives the central workday unit issues a "Binergoncy STOP" (Notatosehalt) command From j all triac switches open and switch all submersible pumps as.

furthermore, the motor of the submersible pump is also switched off when none of the fuel pumps is used. As mentioned above, after the completion of a gasoline dispensation for every purchase, neither is that "Ready" - nor the "In Use" signal at the Yes input of the triac gatef the triac gate of the relevant

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So the fuel pump opens. “So none of the petrol pumps for used a certain type of gasoline? all triac switches for these fuel pumps are open and the motor of the submersible pump is switched off for this type of petrol «

When a sales process at a petrol pump has ended, the petrol station attendant can determine the sales price for the purpose of accepting the payment, simply by pressing the buttons corresponding to the number of the pump. For example, the sales amount of the sale output that has just taken place at the gas pump 24-10, the gas station attendant dials "10". Under program control this produces a visual display of the pump number ("10") and that for the pump 24-10 in the meters 76, 77 of the same standing amounts.

If a new customer wishes to use the fuel pump before the payment for the last sale has been accepted, the fuel pump and its counters can be reset to zero by pressing the corresponding fuel pump button and then the "Reset" button . As a result, the amounts in the counters 76, 77 of the output unit 24-10 are written into the memory locations 137 and 153 for temporary storage (provided that the above-mentioned division of the memory locations); furthermore, these amounts are added to the accumulated amounts in storage locations 10 and 26, respectively. The price amount from the counter 76 of the fuel pump 24-10 is, as already described, added to the accumulated sum in the memory location 121. The previous sale can then be called up from the temporary storage by entering the number of the fuel pump and pressing the ".riecall · ¹ "key; the sales quantity and the sales price are then displayed visibly on the console.

In a preferred embodiment of the invention, the program control causes the viewing devices 30 to flash, 40 and 42 if keys are printed in the wrong order or at the same time. The visual display can be displayed at any time

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" ²⁶ ■ 2ΑΑ5Ί-65

can then be deleted by pressing the "Clear" key.

The gas station attendant can determine the fuel level in each of the tanks, indera he switches to data entry mode and then the Storage locations of the storage tanks corresponding keys ("for example a the storage spaces 33 to 36) and then the "Recall" button presses. As a result, the amount of torrent in the affected area will be earthed Tanks visible - issued

In a preferred embodiment of the invention, the Signals from the level sensor are evaluated and indicator lights on the console are switched on to ensure that there is a low fuel and hater supply to display. The level sensor is detailed in the US patent application Mr. 388 593 described »,

, / ie already mentioned, the gas station attendant can save data in each of the memory locations Enter 0-99., And data, will be saved in the memory 100 - 127 temporarily stored on demand. To memory locations 100 - 12? however, only the central office has access. So to check the .uaten in storage locations 1-16 and allow 33 - 36 to determine whether incorrect data has been entered redundant storage locations 112-127 and 107-110 are provided.

At the end of a shift or at any other desired point in time, the content of storage locations 1-37 can be read out and can be stored in memory locations 38 - 74. This is done by the program control when the button 33 is pressed on the console. The data are thus held ready for reading during the next shift.

already mentioned, the data is transmitted to and from the Borrower of the central office in the conventional way via a data coupler and, for example, a telephone line. The lender of the Central office is programmed in such a way that he can call the petrol station by phone and after the signal identification one "Transmitting" command to the station computer. the Program control causes the "XMTG" (broadcast) to light up -

5 098U / 0352

-Lamp 30 on the console and a lock of the central processing unit, the keyboard and the relevant system components against operation. However, the gas pumps and theirs can Keep the counter working. The gas station attendant can interrupt the data transmission for a limited time - e.g. for 15 seconds. if a sale is shown, a gas pump back, put or a previous sale is to be retrieved. This is done through. Press the "Interrupt" button 31 on the console. The program control then orders the computer in the central office to interrupt the data transmission. The transmission will automatically resume after the interruption time has elapsed.

In the event of a disaster - e.g. fire, gasoline spillage, storm, etc. - the gas station attendant can use all the fuel pumps and pumps by. Press the "Emergency Stop" button without disturbing the memory completely. Under program control The central processing unit sends a pulse to the triac gate 92, which blocks it so that no Signal is supplied to the triac switch 96 and the switch consequently opens.

Furthermore, the computer of the central office can enter data into the memory of a station computer. To do this, the central computer sends a signal that causes lamp 32, "New Data", to illuminate on the console. After the transfer the attendant can view this data by selecting the relevant memory and pressing the "Recall" button presses. The "New Data" lamp can be cleared by pressing the key labeled "4".

Program control only requires conventional operations with which the programmer is familiar; so it is not required to specify a program here. The invention does not lie in the program, but in the control and data system itself - especially in its application to self-service petrol stations and various chain companies, some of which may only be

5098U / 0352

manual data entry and connection via telecommunications take advantage of "

Details of the stages and parts that have hitherto only been sehematic have been described

S ¹ Ig ^ 5 'and 6 show a device for converting the mechanical display supplied by the encoders 48 and 50 in FIG. 1 into electrical signals ₉ which correspond digitally to this mechanical display Displaying (price) of the product dispensed by the fuel pump 24 generates the in fig. The device shown in FIGS. 5 and β consists of electrical pulses which are counted, the count corresponding to the finished liquid dispensed. Apparatus similar to that of FIGS. 5 and 6 can be provided to provide electrical pulse signals representative of the amount (volume) of product dispensed as indicated by the encoder 50 display.

As shown in FIGS. 5 and 6 - and also in FIG. 3 - sits a turntable 66 on the price shaft 49 of the mechanical Computer in the fuel pump and is fixed to the shaft with the grub screw 67 so that it cannot rotate Equally spaced circumferential openings 202 and will surrounded on both sides by a forked frame 204, which has an exchangeable slotted block 206 on the circumference of the disc wearing. A frame defining arm 208 is attached at one end to a stationary pin 210 of the mechanical calculator in FIG -Fuel pump and at the other end (cf. 209 on the forked frame 204) fixed in relation to it so that it can pivot.

In a fastening loop in one side of the interchangeable Blocks 206 - see FIG. 3 and the sectional view of FIG. 6 - a light-emitting diode 68 is arranged and on the opposite one Side of the block 206 a transistor 69 (see. Also Fig. 3), so that it is from the diode through the slot is separated. The block 206 is oriented and attached to the frame so that the position of the diode and transistor of the

509814/0352

corresponds to the radial position of the openings 202 in the disk 66. In this way, transistor 69 generates a signal each time when an opening 202 is passed between diode 68 and transistor 69. This signal goes to gates 74 »75 and the counters 76, 77; as a digital signal there is the accruing partial amounts of the price for the τοη output by the output unit Product again.

The light-emitting diode 68 and the transistor 69 are shown in FIG. 7 for the encoder 48 (Pig. 1) schematically as "68a" and "69a" designated to them by the in! ig. 3 to distinguish corresponding elements for the quantity encoder 50 shown. The diode 68a and transistor 69a are shown in FIG. 7 as shown enclosed in a box 216 - shown in dashed lines, of the block 206 of the! ig. 5 and 6 as it is described οDen, is equivalent to. Similarly, a diode 68b and a transistor 69b correspond to the relationship of the diode 68a associated with the transistor -69a to generate signals corresponding to the subsets of the from a certain Tantt column Generate issued product.

The diodes 68a and 68b receive their operating voltage via a full-wave rectifier from the diode pair 222, 224 from the secondary winding a shielded transformer 226. The primary

. winding of the transformer takes an alternating voltage of for example 115 V from a conventional mains connection. The transformer 226 is constructed, i.e. shielded, in such a way that a short circuit between the primary and secondary windings never occurs can. This avoids undesirably high stresses occurring at elements 68a, 68b, 69a and 69b. The transformer is thus a protective element in this in itself secure against ignition of fuel vapors Weak circuit.

The anodes of the diodes 222, 224 are connected to the connections of the secondary winding of the transformer 226, the cathodes to one resistor 228 with the capacitors 230, the other connection

5098U / 0352

sehlüsae lead to the ί / Iittelanzapf of the secondary winding of the transformer, continue to exist. Connection θα from the cathodes of the diodes 222, 224 to first connections of the resistors 232s, 234 »236 and 238, the other connections of which are respectively connected to the first connections of the diode 6Sa _{5 of} the diode 68b, the transistor 69a and the transistor 69b "The second connections of the transistors 69a and 69b are in each case via the resistors 240 and 242 on the output lines" all of the resistors 232, 234 ", 235? 238 »240 and 242 are Sohutael elements and are intended to limit the current entering the danger area 223 of the fuel pump to intrinsically safe fourths (no ignition of explosive vapors).

The second connections of the diodes 68a and 68b are each connected to the collector of a transistor 244? whose emitter is grounded and the base of which is connected to one terminal of the transistor 246. A second terminal of transistor 246 is across a resistor 248 at the cathodes of the diodes 222, 224. The transistor 246 is assigned to a light-emitting diode 248, one terminal of which is grounded and the other terminal of which receives a positive low voltage of, for example, about Ψ5 V via a resistor 250.

L'a positive voltage of relatively low level will be about the resistor 250 is placed on the diode 248 when an "In Use" signal is present, whereby the transistor switches through, so that at the base of the transistor 244 a positive voltage passes, which turns on the transistor 244, the in turn, puts the diodes 68a and 68b at ground potential and lets them light up. The flow of fuel through the fuel pump causes the openings 202 in the perforated disk 66 to pass between the diode 68a and the transistor 69a one after the other; the photosensitive transistor 69a receives the intermittently occurring light beams, switches intermittently through and sends the signals for the partial amount counting through the resistor 240. In the same ΐ / eise and this at the same time, transistor 69b layers signals through resistor 242 when diode 68b is spinning

5098U / 0352

intermittently becomes conductive and that of the "gas pump concerned displays the partial quantities of liquid dispensed. The one in the Pig. The circuit arrangement shown in FIG. 7 corresponds to the diodes 68, the transistors 69 and the pulse drivers 70, 71 of the Pig. 1.

The signals passing through resistor 240 are stored in Pig. 3 applied to a pulse shaper 72 described in Pig. 9 shown in detail is. Resistance 240 the Pig. 7 is also in the Pig. 9 to show that the partial amounts of the Sales price representing electrical signals to the base of a transistor 250 and to first connections of a parallel network from a resistor 252 and a capacitor 254, the other terminals of which are grounded. The transistor 250 is part of a differential amplifier, the other half of which is formed by the transistor 256. The emitters of the Transistors 250, 256 are jointly connected to ground via a resistor 258. The base of transistor 256 is overlaid a resistor 260 to ground.

The collectors of transistors 250, 256 are across the resistors 262 and 264 are connected to a positive operating voltage of a low level - for example about 4 · 5 V. They continue to run on the collector of the transistor 256 standing signals via a coupling capacitor 266 to the base of transistor 268. Furthermore, a resistor 270 is connected to the base of transistor 268 a positive, relatively low potential. The emitter of transistor 268 is grounded, its collector receives a Resistor 272 positive voltage. The signals at the collector of transistor 268 run to one connection of a NAND gate 274, the other terminal of which is on line 276, from which it receives the "in use" signal.

In the idle state, transistor 256 is switched on and transistor 250 is blocked. Turns on the transistor 69a of the pig. 7th to indicate a partial amount of the price of the product dispensed by a petrol pump, it causes a positive Signal through resistor 240 to the base of the transistor

5098H / 0352

250 in Fig. 9? the thereon by switching the resulting negative voltage jump at the collector of the transistor 250 goes to the base of the transistor 256 and locks these "For example, the transistor 250 and blocks the transistor 256, • Nominal to dis base of the transistor 250, a signal having an amplitude of at least about 3 »4 Y is placed»

Resistor 262 has a considerably higher resistance value than resistor 264. For this reason, the voltage at the emitter of transistor 250 when it is switched on is closer to ground potential than the voltage appearing on the emitter of transistor 256 while it is switched on. As a result, the transistor 250 remains switched on even if the voltage at the base of the transistor drops considerably below a value of at about 3j4 ¥, which prevents interfering signals _t from reaching the base of the transistor 250 via the resistor 240. » let the transistor 250 flip into the blocking state = For example, the transistor 250 only flips into the blocking state "when the voltage on the base has dropped below about 0.9 ¥"

By preventing transistor 250 from going off tilts before the voltage at its base has dropped below a level which is considerably lower than that at If the voltage value required to go into the on state, the transistor 250 will counteract. Insensitive to interference signals. on In this way, the transistor 250 responds only to high voltages that correspond to the partial amounts in the price of the respective fuel pump issued product. This © hysteresis further prevents mechanical vibrations as well as a minor one Turning back from the standstill from near one the signal threshold values cause unwanted additional impulses.

Each time transistor 250 is triggered into the on state and then into the off state, the transistor 256 switches on and off alternately. Switches the trans-

509814/0352

sistor 256 through, a relatively low potential goes from the collector of transistor 256 to the base of the transistor 268, which goes into the blocking state, so that a relatively high potential is given to the WAND-G-Iied 274. The NAND gate 274 switches this signal through if there is a positive signal on the line 276, which indicates that the The relevant fuel pump is in operation.

thus, when a pump is in operation, each successive cycle of the transistor 250 will trigger in the switching state and then in the blocking state a partial amount count jump to the total amount from the fuel pump issued product. The one in Pig. Corresponding circuit arrangements shown in FIG. 9 are provided and produce operationally Signals from transistor 68b via '/' resistor 242, the Sub-quantities of the total amount (total volume) of the Fuel pump dispensed product. Typically the subsets counted are 0.01 gallons (0.038 liters) for the throughput volume and $ 0.001 for the monetary value.

8 shows individual pages of the structure of the photocoupler 86, the delay circuit 88, the triac gate 92, the photocoupler isolation circuit 94 and the triac switch 96 in FIG. In FIG. 3, the photocoupler 86, which is also the Fig. 3 shows the "In Use" signal given. The signal generated by the transistor in the photocoupler is then shown in transistors 280, 282, 284 and 286 are amplified. At the output of the stage with the transistor 282 is a - in Fig. 3 by the block 88 indicated - delay introduced by placing a μ'iderstand 288 and a capacitor 290 in series and their common Connection to the collector of transistor 282 and the base of transistor 284 are placed, / ie already mentioned, the delay in the fall of the "In Use" signal and the corresponding pulse counting capability is desirable, to ensure that the customer does not receive a small amount of gasoline (worth 2 to 3 cents) free of charge no longer would be counted after turning the pump on

509814/0352

i'anic column has switched off = The through the resistance 288 and however, the delay caused by capacitor 290 is sufficient briefly to prevent the customer from turning off the fuel pump «, to put the scales on gauze and then continue to take gasoline » before the "In Use" status is lost.

The output signal at the collector of the transistor 286 goes to the cathode of a diode 292s, which forms a UKD element with the diode 294. The cathode of the diode 294 picks up the “Ready” signal from the “Heady” J? Lipflop 100 in Jig * 3. That from the. AND gate existing diodes 292 and 294 emits a low voltage * if either an "In Use" (not in operation) signal is not on the diode 292 or a "Ready" (not ready for operation) signal], not on the diode lies. Is both a. "In Use" (not in operation) «as - also a" Heady "(not ready for operation) signal VOr ₅ is high voltage at the anodes of the diodes»

never voltage at the anodes of modes 292 and 294 goes to the Base of a transistor 296 which forms a JeiOK element with a transistor 298. Jie ..., in the middle of the transistors 296, 298 are grounded, while the "Emergency Stop" signal goes to the base of transistor 298- «, to the collectors of the The light emitting diode of the photo coupler is connected to transistors 296 and 298 94, which FIG. 3 shows.

The AND gate formed by the diodes 292 and 294 and the NOii gate formed by the transistors 296 and 298 correspond the i'riac gate 92 of FIG. 3 ° n / ie already explained is pending the anodes of diodes 292 and 294 have a low voltage when. either an "In Use" or a "Ready" signal is produced. This low voltage goes to the base of transistor 296 and turns it off. The transistor 298 also blocks if the "Emergency Stop" signal does not appear on the base lies »Under these conditions there is a high voltage at the collectors of transistors 296 and 298, the diode in the photocoupler isolation circuit 94 in flux

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direction biases. This also switches the controlled one Silicon rectifier (SOH, thyristor) 94a in the isolating circuit 94 through.

If a voltage is generated in the silicon controlled rectifier 94a, this causes a positive voltage in a diode bridge 300. This positive voltage also causes a switch from two anti-parallel connected silicon controlled rectifiers switches through. This switch is the triac switch 96 in FIG. 3. If the switch 302 turns on, turns on He establishes a ground connection for the 'reset motor and the relay coil, which the motor of the submersible pump for pumping up the product switches off the tanks. However, the reset motor is not energized until the switch 46 is actuated to cause the dispensing unit Can deliver gasoline.

The novel, through the device and method according to the present Invention effected punctures allow complete control of the dispensing units or fuel pumps Self-service filling station, with data being stored in such a way that its accuracy is provided by a central office checked out and the accounting can be done with automated data. Before or during a sale you can the sales data of the previous sales transaction can be called up and visibly displayed at each petrol pump. While a fuel pump is used, it cannot be reset. Additional data can be sent manually by the gas station attendant or electronically can be entered from the central office. Automatically collected digital data from the supply sensing devices can recorded, displayed visibly, stored, brought up to date and finally transmitted on a telecommunication line will. The arrangement is evident to the person skilled in the art and the method of the present invention has many other beneficial results.

The preferred forms of the arrangement according to the invention are incorporated herein with reference to conventional ones

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and idittro computer circuits and other parts suitable therefor have been described as they are known in the art. However, those skilled in the art will appreciate that other microcomputer programs, Logic systems, other types of circuits, and different devices can be used without departing from the scope of the invention. The invention is therefore not intended to apply to specific embodiments described and illustrated herein, but only by those in the appended claims included definitions.

Claims

509814/0352

Claims (1)

Godfather tansp rüche ll.) Method for dispensing a product from a Output device in which signals are generated that represent the output View amount of product that counts signals to get a record of the total amount dispensed Dispensing device resets so that the product can continue to be dispensed, temporarily stores the counted amount and retrieves the counted amount from the temporary storage and displays it visually. 2. The method according to claim 1, wherein the counted amount or the counted value of a cumulative amount added, which are permanently stored. 5. / experience according to claim 1, in which one issues further product and before a retrieval and a visible representation the previously counted amount generates and counts additional signals. 4. The method according to claim 2, at. which one interrogates the permanent memory from a remote location, 'in order to get from to transmit signals to that remote location indicating the cumulative total. 5. The method of claim 1, wherein the product is dispensed from a plurality of dispensing devices, 5098U / 0352 one temporarily stores the counted amount for each output device at a different storage location, the temporary one Selects memory address for the purpose of retrieval and visible representation and each counted over. ± close of a cumulative total amount in different Storage locations added to the iJauerspeed. 6. The method of claim 5 including one of each output device remote visual display of an ongoing dispensing of the product as well as the readiness to dispense the Product. 7. The method according to claim 5, wherein the permanent storage addresses polls from a remote location in order to transmit signals to the remote location, the show the cumulative amount that is in the persistent storage space in question. 8. 'The method of claim 7, wherein' each total amount or each total amount to the cumulative amount in a second permanent memory added. 9 · The method according to claim 2, wherein the cumulative Randomly transfers the amount or the cumulative amount in the permanent storage space to another storage space. . 10. Control and data collection system for use with a product dispensing device and comprising a device responsive to the dispensing of the product by the device dispenses and generates signals indicative of the amount of product dispensed, means removed from the facility are arranged and count the generated signals, operable from the remote location means to reset the device and to enable them to dispense more product, a temporary store that holds the counted amount and from means to retrieve the counted amount and to display it visibly. 509814/0352 11. The system of claim 10 including persistent storage and means for adding the counted quantities to the persistent storage. 12. The system of claim 11 including means for selectively converting the cumulative amount in persistent storage to another persistent storage to convict. 13. System according to claim 11, with interrogation means arranged remotely from the aforementioned means and a connection unit, which connects the query means with the permanent memory. 14. The system of claim 11 for use with a plurality of output devices having a plurality of different ones Addresses in the temporary memory, each of which the counted amount or the counted amount from an assigned Can accommodate output device and with means to select a temporary memory address and display their content visibly. 15. The system of claim 14 having a plurality of first visual display devices remote from the output facilities are arranged, with means responsive to the dispensing of the product by each dispensing device and a Signal to one of the visual indicators with a plurality of second visual indicators, which are arranged at a distance from the output devices, and;. 'with means which, upon actuation of each of the resetting devices provide a signal to one of the visual indicators. 16. System according to claim 14 with a second permanent memory and means for counting amounts or amounts to be added to the content of the second permanent memory. 17 · System according to claim 14 with interrogation means, a connection, device that connects the query means with the permanent storage and a dialing device with which each address in the Permanent memory can optionally be queried. 5098U / 0352 18. The system of claim 17 having a plurality of first visual display devices used by the output devices are arranged remotely, with means which, in response to a product delivery from one of the output devices, sends a signal to one of the output visual indicators, a plurality of secondary visual indicators provided by the output devices are arranged, and with means which, upon actuation of the resetting device, send a signal to one of the second visual indicators. ig. System according to Claim 18, having a second permanent storage device and means for adding to the contents of the permanent memory counted amounts or amounts of value. 20. System according to claim 17 with the data transmission preventing means that the transmission of data to the Prevent interrogation means for a limited period of time. 21. Data storage device for a self-service petrol station with a large number of petrol dispensing devices and a plurality of gasoline storage tanks from which gasoline is operationally dispensed through the dispensers can, wherein the output devices with visible display devices for the volume and the amount of each Sales are provided, which data storage device has a data memory with a variety of addresses, means that on address the dispensing of liquid by one of the dispensing devices and generate signals that correspond to the volume or the v / ert ~ amount of liquid dispensed, means that respond to the level / volume of gasoline in each tank and pick up signals that indicate the volume of gasoline remaining in each tank, means that these Visualize level or this volume indicating data and transfer to a storage location in data storage, a Having visual display arrangement and means which can be actuated by the gas station attendant in order to query and data memory addresses to bring about a visual display of the stored data. 5098U / 0352 22. Data storage device for a self-service gas station according to claim 21 with means to the amount or the Amount of the transferred sales data for the tight or the Add amount already stored in the data memory. 23 · Data storage device for a self-service petrol station according to claim 22 with one connected to the data storage device Connection unit and means for communication with the central office in order to query the data memory via the connection unit. 24. Data storage device for a self-service gas station according to claim 23 with means to the amount or the »Amount of the transferred data for the amount or the amount to be added that is already at a second address in the data memory, whereby the gas station attendant actuatable interrogation device can interrogate only one of the addresses into which the transmitted data are entered, and with Means in the communications facility of the central office, which can query any address into which transferred data is entered. 25. Data storage device for a self-service petrol station according to claim 23 with means through which the query the storage device by the ÜTaohrichteneinriehtung the central office can be temporarily interrupted. 26. combination for use in a self-service filling station to dispense one in tanks in the self-service filling station stored fuel consisting of a plurality of dispensers operable with the tanks are connected to dispense the fuel from the tanks in a controlled manner, each of the dispensing devices e: "a switch having a first and a second position, a plurality of reset motors, each for a specific Output unit are provided, a plurality of first JtSinrich- 509814/0352 on / ^ dispensing devices to determine the amount of liquid that the output unit has given in a previous sale to count and display a plurality of second means at the dispensing devices to determine the monetary value of the quantity of liquid, that the output unit has given in a previous sale to count and display to a third device, which responds to the actuation of the switch on a certain aer output device to the reset motor for this output device with the first and the second device to connect for this output device and a .Resetting the first and the second device in the starting positions to enable a fourth device that is operatively coupled to the output devices and on the switch of a specific one of the output devices, if this is in the first position, and on the resetting of the first and the second device of a particular one the output device is responsive to output a signal indicating that the output device is in operation, a fifth device that responds to the in-operation signal of the fourth Responsive device for the output device in question and emits electrical signals that of the output unit in question the amount of liquid dispensed during subsequent use correspond to a sixth device, which responds to the in-operation signal of the fourth device for the relevant Output device responds and emits electrical signals, which correspond to the monetary value of the amount of liquid dispensed by the dispenser in question during subsequent use, a console that is at a monitoring station in the l'anKSteile has a keyboard, and a seventh device with a central processing unit at the monitoring station of the self-service filling station, which reacts to actuation the keyboard responds and visibly displays the signals supplied by the fifth and sixth devices. 27. The combination of claim 26, wherein the fourth Einricntung delivers signals in a Porm, in which one of ' safe delivery of the! liquid through the relevant 5098U / 0352 Output device takes place, and in which the fifth and the sixth gate direction are constructed so that they send signals in one Deliver form in which there is a safe dispensing of the liquid by the dispensing device in question. 28. The combination of claim 26, wherein an eighth device including the central processing unit is provided to display the fifth and the sixth device for later retrieval when pressing the keyboard and of the third device to achieve a reset of the first and second devices. 29. Combination for use in a self-service filling station for dispensing a fuel stored in tanks in the self-service station, comprising a plurality of dispensing devices which are operatively connected to the tanks in order to dispense the fuel from the tanks in a controlled manner, each of the dispensing devices having a switch a first and a second position and a first device which is movable into different positions to count and display the amount of liquid dispensed by the respective dispenser in each individual sales transaction, and a second device which is movable to different positions to the To count and display monetary value of the dispensed liquid, from a third device responsive to the .Resetting of the first and second devices in a particular dispenser in the initial position and to the switching of the switch to the first position in order to ei n "In J3betrieb" signal for the relevant dispensing device to output, a fourth device which is responsive to the "in operation" signal of the third device and to the dispensing of the liquid by the relevant dispenser and supplies electrical signals which are generated by the relevant dispenser Dispensing device represent the amount of liquid dispensed, a fifth device that ^{responds to the 11} In operation ¹¹ signal from the third device for the relevant dispenser and to the dispensing of liquid by the 509814/0352 Appropriate output device responds to electrical signals to deliver the monetary value of the relevant issuing institutions the amount of liquid dispensed, one sixth facility with a console that provides information regarding of the operation of each of the output devices can store in the self-service station and a seventh Establishment contains to the information stored in the console to visually indicate an eighth facility that is operationally connected to the console and is responsive to the signals from the fourth and the fifth device responds to the the cumulative value of the signals from the fourth execution and the cumulative value of the signals from the fifth installation to determine and the result of such determinations for the purpose of visual display through the seventh facility, and a ninth facility operable on the sixth and fourth facility the seventh device is connected to a single view of the in the seventh device for the individual To effect output devices stored information. 30. Combination according to claim 29, with a device, the on da3 "in operation" signal from the fourth device responds to the output device in question and visually indicates that the console is in operation. 31 »Combination according to claim 29, in which the fourth device electrically insulates from the third device, but is operatively coupled to it to generate the electrical signals that are output from the individual output device correspond to the amount of liquid dispensed, and in which the fifth device is electrically isolated from the third device, but is operatively coupled thereto to provide the electrical Generate signals that represent the amount of liquid dispensed by the individual dispensing device. 32. Combination according to claim 31, in which the fourth device is constructed in such a way that it responds to interference signals and me- 5098U / 0352 cnanic vibrations does not respond and signals only when The presence of signals is generated which represent the amount of liquid dispensed by the individual dispensing device, and at which the fifth device is structured in such a way that it does not appear responds to electrical interference signals and mechanical vibrations and generates signals only when signals are present that cause the Represent the monetary value of the amount of liquid dispensed by the individual dispensing device. 33. The combination of claim 32, wherein the eighth device is configured to use the cumulative amount of the of the individual output device during a sequence of successive The amount of liquid dispensed in transactions and the cumulative monetary value of each dispenser issued during a series of consecutive transactions Liquid amount determined and for the visual presentation of this cumulative information by the seventh Establishment ensures. 34 · Combination for use in a self-service filling station to dispense fuel stored in tanks in the self-service filling station and to display the Liquid dispensing at a central location in the filling station, with a large number of dispensing devices that are operationally with the tanks are connected to the liquid from the tanks in a controlled manner, each of the dispensers having a Having a switch having a first and a second position, a plurality of first devices, each operative are coupled to a single dispensing device in order to dispense the amount of liquid dispensed by the respective dispensing device to count and display a plurality of second devices each associated with a single one of the output devices are coupled to the monetary value of the amount of liquid dispensed by the relevant dispensing device to count and display, with a third device that acts on the switching of the switch of an individual one of the output devices responds to the first position and the Jiückstellen 50981 A / 0352 the first and the second device of the relevant output device to an initial value allows, with a fourth i ^ inricntung, the switching of the switch for a single the dispensing device in the second position is responsive to the dispensing of liquid by the respective dispensing device and allowing the associated first and second devices to operate in accordance with the liquid dispensing fifth means responsive to the indication of the first and second means for a particular output device and transmits these messages to the central location with complete security for danger points, with a sixth set-up, which responds to the from the fifth facility to the central location / aer self-service petrol station to at the central location, the cumulative amount of liquid dispensed from each of the plurality of dispensers and the Cumulative monetary value of the dispensed liquid since these dispensers were last switched to the second Position were switched to save, and with a seventh device, which is based on that of the sixth device addresses stored information and a visual representation of the cumulative amount of liquid dispensed by each of the dispensers of the plurality and the cumulative monetary value for the amount of liquid dispensed by each of the dispensers of the plurality '. 35. Combination according to claim 34 with an eighth device, which is based on the from the fifth device to the central Display transmitted to place in the self-service kiosk responds and at the central location for each dispenser of the plurality the cumulative amount of liquid dispensed and stores the cumulative monetary value of this liquid for a plurality of successive dispensing operations, and a ninth facility, which is operationally linked to the eighth and seventh facility and a visual representation « Development of the cumulative amount of liquid dispensed and the cumulative monetary value of that liquid for a variety of successive dispensing of liquid to the individual outlets 5098U / 0352 dispensing devices causes. 36. Combination according to claim 35 with a tenth device which, on queries from a remote station from the gas station Addresses central offices to the central location and transmits the advertisements from the central location to the central office, which the the cumulative amount of liquid dispensed from each of the dispensers in the plurality and the cumulative monetary value for of the liquid / represent a plurality of successive liquid discharges from each of the dispensers. 37. The combination of claim 36 having an eleventh device operable with the tenth and seventh Facility is coupled and operationally gives priority to the tenth facility over the seventh facility. 38. Combination for use in a self-service filling station for the delivery of a fuel stored in tanks at the self-service filling station from a large number of individual fuels Dispensing devices and for displaying the dispensed liquid at a central location, each of the dispensing devices is arranged to dispense the fuel and an indication of the amount spent in each individual transaction Liquid and the monetary value of the liquid spent in each individual transaction, with a first the self-service filling station arranged device, which sends a signal to individual output devices in order for them to to prepare the fuel delivery, a second, arranged at the individual dispensing devices, the one has first and second operating states and in the first state supplies a signal to the individual output devices to set the amount of fuel dispensed and its monetary value to zero, and a signal in the second state supplies that prevents the transmission of additional signals from the first device to the individual output devices, with a third device which is responsible for resetting the individual output devices to the counting state zero and up 5098U / 0352 the drive of the individual output devices at the time of output of fuel responds and emits a signal that indicates daw the output device in question is in operation, with a fourth device, which responds to the signals from the third device responds to the individual output devices and the .operation of the second. device for such individual output devices in the second state, with a fifth device that responds to the signals from the third device for responds to the individual output devices and delivers signals that are output by the individual output devices i'lüssigkeitsvolume and its monetary value correspond, and with a sixth device that responds to the signals at the central location responds from the fifth device and the Plüssigkeitsinenge dispensed by the individual output device as well as their Indicates monetary value. 39 · Combination according to claim 39 »in which the fifth Device for each of the individual dispensing devices is constructed so that they the dispensed amount of liquid and signals representing their monetary value for the output device in question are electrically separated from the output device supplies. 4 <j. The combination of claim 38 with one at the central one ürt arranged device which supplies an emergency shutdown signal for the individual output devices, and with a device arranged at the output devices, which reacts to the emergency shutdown signal for the individual output devices responds in order to prevent the further issue of fuel by the individual dispensing devices. 41. Combination according to claim 39 with means contained in the fifth device which operationally ensure that the fifth arrangement does not respond to electrical interference signals or mechanical vibrations, but only to signals, which represent the amount of liquid dispensed by the individual dispensing devices and their monetary value. 5098U / 0352 42. Combination for use in a self-service filling station for the delivery of fuel from a multiplicity of i'anKs arranged at the self-service filling station and for displaying the dispensed liquid at the central ürt, with a multiplicity of individual dispensing devices for the delivery of fluid, each having an iviotor and a display device which is operationally coupled to the iviotor and which displays the amount of the dispensed liquid and its monetary value, with a first device at the central location which outputs an oignal to the individual dispensing devices in order to indicate the individual dispensing devices for the dispensing of i ' Prepare material with a second device arranged at the self-service station for the individual output devices, which in a first operating state emits a signal in order to set the counting device in the relevant output device to the jmll counting state, and in a second Operating state emits a signal in order to prevent the delivery of additional oignale by the first device, with a third device that responds to the signal of the second device in the first state for the individual output devices at the self-service petrol station in order to return the counting device in these individual output devices With a fourth device, which responds to the resetting of the counting device of the individual output devices to the counting state zero, in order to put the!, iotor in operation in these individual output devices and to oevvirken the ireiostoffabgaoe through these individual output devices, with a fifth device , which responds to the fuel delivery from the individual output devices and generates a signal which indicates that the output device in question is in operation, with a sixth device that responds to the signal from the fifth device for the individual A Output devices responds in order to put the second device into operation for these output devices in the second state, with a seventh device which responds to the pulp output by the individual output devices and emits signals which the individual output devices 5098U / 0352 and with an eighth device that responds to the amount of fuel delivered and its monetary value signals from the seventh setup for the individual output devices responds and at the central location the amount of fuel issued by the respective output unit as well as whose monetary value counts and displays. 43. Combination according to claim 42, with a ninth ^ inricntung at the central location, which generates a signal that causes an emergency shutdown of the individual output devices, the signal causing the emergency shutdown for the individual Output devices on the motor of the individual output devices acts to operate it for fuel output to interrupt. 44 · The combination of claim 42, wherein the seventh ^ inricntung for the individual output devices constructed in this way is that * o the signals from the seventh facility for the individual output devices electrically from the motor of the individual output devices and the fourth device of the individual output devices are separate. 45. Combination according to claim 42 with arranged on the central urt means that the cumulative amount of the amount of fuel given to individual dispensing devices Show. 4b. Aomoination for use in a beibat service center for dispensing one in tanks in the self-service station stored fruit, with the self-service parts has a central location where data - including the amount of data - from each of the output devices the target selection of expended fuel as well as its monetary value collected and stored, with a first, to the output Einmcntungen arranged device to information Regarding the amount of the respective output device to store the fuel and its monetary value spent in every single transaction, with a second, operational 5098U / 0352 "borrowed from the first facility coupled to the central location, A visual display of the amount of fuel dispensed by the individual dispensing devices and their monetary value to effect, with a device arranged at the central location and assigned to each output device, which is operationally is coupled to the first and the second device to reset the operation of the third device first and second devices in the initial state cause, with a arranged at each of the output devices fourth device, which is based on the operation of the third Device for .Resetting the first and the second device in the initial state responds to an in-service signal to be sent to the central urt, which indicates that the person in question is there Dispenser dispenses fuel, and with a fifth device on each of the dispensers, which on the in-service signal from the fourth device is responsive to each of the output devices and to the second device Signals are digitally the partial quantities of the respective Output device dispensed fuel and its monetary value correspond. 47. Data storage device for self-service parts according to claim 22, having means for causing the sum resulting from the addition of data in is stored in another memory cell of the memory. HCl / La 509814/0352 Blank page