JPH0948492A - Storage amount controlling apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To control the amount of liquid in storage tanks by a method wherein difference between the amount of liquid in the storage tanks detected with a storage amount detecting device and the amount of oil stored in a memory for projected amount of shipment is computed, and the computed results are outputted. SOLUTION: Tank data comprising of tank numbers each specifying each of the storage tanks, kinds of oil stored in the storage tanks respectively corresponding to the tank numbers, storage amounts respectively corresponding to oil level heights of oils currently stored in the storage tanks respectively corresponding to the tank numbers are stored in a memory 85. A storage amount controlling part 84 of a storage amount controlling apparatus computes the amount of storage for every kind of oil stored in every storage tank in a storage station after the lapse of a specified time out of the amount of oil currently stored respectively in the storage tanks, the amount of oil for every kind to be shipped from the storage station during a specified period of time, and the amount of oil for every kind of oil to be supplied to every sotrage tank during a specified period of time, and the computed results are displayed on a display unit 80.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage amount management device which is provided at various liquid supply stations for shipping liquid stored in a storage tank and manages the storage amount of the liquid in the storage tank. In particular, the present invention relates to a storage amount control device capable of controlling the number of liquids in a storage tank provided in an oil tank.

[0002]

2. Description of the Related Art For example, a tank lorry vehicle (hereinafter referred to as a lorry vehicle) has a liquid (hereinafter, an oil tank station as a liquid supply station,
(For example, an oil liquid is used as the liquid), and at an oil tank station that uses a lorry truck to ship the oil liquid, a storage tank that stores the oil liquid to be loaded into the lorry truck and the oil from each storage tank to each lorry truck And a loading device for loading the liquid.

In the above oil tank station, the oil tank is replenished with oil liquid every time when the storage amount of the oil liquid in the storage tank falls below a predetermined amount or every predetermined period regardless of the storage amount. It is done by the employee placing an order.

[0004]

In the conventional replenishment of the oil liquid to the storage tank described above, the operator merely senses the stored amount of the oil liquid stored in the storage tank. , Depending on the quantity of the ordered oil liquid, the storage tank becomes empty during the supply of the ordered oil liquid, and as a result,
There was a problem that the oil liquid received for the order could not be supplied.

[0005]

In order to solve the above problems, the storage amount management apparatus of the present invention detects a storage tank for storing oil liquid and the amount of liquid stored in the storage tank. Stored liquid amount detecting means, planned shipping liquid amount storage means for storing in advance the liquid amount of oil liquid to be shipped in a predetermined predetermined period, liquid amount detected by the stored liquid amount detecting means and the planned shipment. The calculation means includes a calculation means for calculating a difference from the liquid quantity of the oil liquid stored in the liquid quantity storage means, and an output means for outputting a calculation result calculated by the calculation means.

Therefore, the calculating means calculates the difference between the liquid quantity detected by the stored liquid quantity detecting means and the liquid quantity of the oil liquid shipped in the predetermined period stored in the planned shipping liquid quantity storing means. Thus, the quantity of oil liquid in the storage tank after the predetermined period is obtained.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION FIG. 1 is a block diagram of each equipment in an oil tank to which an embodiment of a storage amount management apparatus 8 according to the present invention is applied. As shown in the figure, the oil depot consists of a loading site 1 and an office 2. The loading site 1 is provided with a loading device 4 for loading an oil liquid on the lorry 3 and a storage tank 5 storing the oil liquid for loading on the lorry 3. A host computer 6, a hatch setting device 7, and a storage amount management device 8 are provided in the office 2.

The tank 3a of the locomotive 3 is divided into a plurality of tanks (hereinafter referred to as hatches), and the capacity of each hatch is, for example, 1 kiloliter, 2 kiloliters, or 4 kiloliters.
They are different, such as kiloliters. Further, a vehicle number card 9 in which a vehicle number for identifying each lorry vehicle 3 is magnetically stored is distributed to each lorry vehicle 3.

Next, each device installed in the office will be described. The storage amount management device 8 will be described later. The host computer 6 stores in advance the type of liquid to be loaded into each lorry vehicle 3 and the quantity thereof before loading the oil liquid into each lorry vehicle 3, and the loading device 4
It is connected to the hatch setting device 7 and the storage amount management device 8 and has a memory 6a composed of a magnetic disk or the like therein, and this memory 6a is replenished to each storage tank 5 of the oil tank location. Replenishment data including the type and quantity of the oil liquid and the date and time at which the oil is replenished, and reservation data and hatch allocation data, which will be described later, are stored. Then, the host computer 6 performs the following controls.

When an oil liquid (liquid type and quantity) is ordered from a customer such as a gas station, the ordered liquid type and the quantity thereof, and a scheduled date and time when the ordered oil liquid is shipped from the oil depot. , And the vehicle number of the Lorry vehicle 3 that delivers the oil liquid to the order destination is stored as reservation data in a reservation file (not shown) as a planned shipping liquid amount storage means in the memory 6a.

When the vehicle number is supplied from the hatch setting device 7, reservation data corresponding to the vehicle number is output to the hatch setting device 7 that outputs the vehicle number.

When the hatch assignment data is supplied from the hatch setting device 7, the hatch assignment data is stored in the memory 6
It is stored in the hatch allocation file (not shown) in a.

The keyboard 6 of the host computer 6
When the type and quantity of the oil liquid to be replenished to each storage tank 5 and the date and time of the replenishment are input from b, this is stored in a replenishment data file (not shown) in the memory 6a as replenishment data. .

When the vehicle number is supplied from the loading control device 4, hatch allocation data corresponding to the vehicle number is read from the hatch allocation file in the memory 6a, and the hatch allocation data is output as the vehicle number. Output to the plug-in device 4.

When a predetermined period is input from a storage amount management device 8 to be described later, the reservation data including the scheduled date and time to be shipped from the oil tank is included in the reservation data file in the memory 6a and is replenished. The replenishment data whose date and time when the oil liquid is replenished to the storage tank is included in the predetermined period is read from the data file, and the read reservation data and replenishment data thus read are output to the storage amount management device 8.

The hatch setter 7 determines the liquid type and the quantity of the liquid stored in the reservation data stored in the reservation file of the memory 6a of the host computer 6 to which hatch of the locomotive 3 and which liquid type. It is for setting whether to load the quantity of. That is, when the vehicle number is read from the vehicle number card 9, the reservation data corresponding to the vehicle number is requested to the host computer 6, and the reservation data having the vehicle number is acquired from the host computer 6, and the reservation data has the reservation data. The type of oil liquid and its quantity are assigned to each hatch of the Lori vehicle 3, and the assigned type and quantity of each hatch and the vehicle number are transferred to the host computer 6 as hatch assignment data. The printer 10 issues a slip on which the liquid type and its quantity for each hatch are printed.

Next, each device provided at the loading site 1 will be described. The loading device 4 is for loading the oil liquid into the lorry vehicle 3, and controls the control unit 20, the vehicle number card reader 21, and each hatch stored in the hatch code 3b provided for each hatch of the lorry vehicle 3. It is composed of a remote switch box 22 having a hatch card reader for reading hatch data for specifying, a grounding device 23 connected to the lorry vehicle 3 when the lorry vehicle 3 is loaded, a loading setting device 24, and the like. ing.

The loading setting device 24 is provided with a loading amount setting switch 24a for setting a loading amount, a start switch 24b for starting shipping, and a stop switch 24c for stopping shipping. Further, the remote switch box 22 and the loading setting device 24 of this embodiment are integrated, and these are attached to a loading arm 25 described later.

Further, the loading site 1 is provided with a storage tank 5 for storing the oil liquid to be loaded on each lorry 3, and the storage tank 5 stores the oil liquid stored therein. A liquid level gauge 26 for detecting the quantity is provided, and the height of the liquid level detected by the liquid level gauge 26 is output to a storage amount management device 8 described later. Although there is only one storage tank 5 in FIG. 1, a plurality of storage tanks 5 are actually provided at the loading site 1 for each liquid type.

A pump 29, a strainer 30, a flow meter 31, a constant flow valve 32, and a metering valve 33 are arranged in the feed pipe 28 connected to the storage tank 5 and feeding the oil liquid.
Further, a loading arm 25 for supplying oil liquid to the lorry 3 is connected to the tip of the feed pipe 28. In FIG. 1, the loading arm 25
There is only one, but in reality a plurality of each type of liquid is provided at the loading site 1, and the loading arm 25 is provided with the remote switch box 22 and the loading setter 24 as described above. ing.

When the vehicle number card 9 distributed to each lorry vehicle 3 is read by the card reader 21, the control unit 20 of the loading device 4 transfers the vehicle number stored in the vehicle number card to the host computer 6. , This host computer 6
The loading control is performed so that the hatch type data corresponding to the above-mentioned vehicle number transferred from the hatch type has a liquid type, a liquid type that matches the quantity, and a quantity that is loaded in each hatch of the lorry vehicle 3. is there. That is, the control unit 20 activates the pump 29 and opens the metering valve 30 when the start switch 24b is turned on. Then, the flow rate pulses from the flow rate pulse transmitter 31a of the flow meter 31 are integrated, and when the amount of the oil liquid set by the loading amount setting switch 24a is shipped, the metering valve 33 is closed.

Next, the storage amount management device 8 provided in the office 2 will be described. As shown in FIG. 2, the storage amount management device 8 includes a storage amount management control unit 84 and a memory 85 provided inside the storage amount management device 8, and a loading amount management control unit 8
4 and a keyboard 81 for inputting various data to the loading amount management control unit 84, and the storage amount management control unit 84.
Performs the control shown in the flowchart of FIG. In addition,
The keyboard 81 is composed of an inventory amount confirmation key 82 which is operated by the operator when confirming the inventory amount, and a ten key 83 for inputting a numerical value such as date and time for designating a period. Further, in the memory 85, a tank number for identifying each storage tank 5, a liquid type of the oil liquid stored in the storage tank 5 corresponding to the tank number, and a storage tank corresponding to the tank number. The tank data including the storage amount corresponding to the height of the liquid surface of the oil liquid stored in the storage unit 5 is stored.

The control configuration and operation of the storage amount management control unit 84 of the storage amount management device 8 will be described below with reference to the flowchart of FIG. First, when the operator operates the inventory amount confirmation key 82 of the keyboard 81, the inventory amount confirmation key 82
An inventory confirmation signal is output from the storage amount management control unit 84. Then, the storage amount management control unit 84 determines that the stock confirmation signal is supplied in step 1, and performs the process of step 2.

In step 2, the level of the liquid level stored in each storage tank 5 is read from each liquid level gauge 26 of each storage tank 5, and the process proceeds to step 3. In step 3,
From the height of the liquid level of each storage tank 5 read in step 2 and the tank data stored in the memory 85,
The type and quantity of the oil liquid stored in each storage tank 5 are obtained, and the process proceeds to step 4. This step 3
Corresponds to the stored liquid amount detecting means. In step 4, from the liquid type and the number of the oil liquid stored in each storage tank 5 obtained in step 3, the number for each liquid type is calculated, and the process proceeds to step 5 in which the numeric keypad 83 is used. Waiting for input. That is, in step 4, when there are a plurality of storage tanks 5 for storing the same liquid species in one oil tank,
By calculating the total amount of the oil liquid stored in these storage tanks 5, the amount of the liquid type stored in the oil tank is calculated.

Next, when the operator inputs a desired predetermined period from the ten-key pad 83 while the inventory management control section 84 is in the input waiting state, the inventory management control section 84 is entered.
Judges that the predetermined period has been input in step 5, outputs this predetermined period to the main computer 6 (step 6), and waits for input from the main computer 6 again (step 7).

When the inventory amount management device 8 supplies a predetermined period of time to the main computer 6, the reservation data file in the memory 6a stores reservation data in which the scheduled date and time of shipping from the oil tank is included in the predetermined period. At the same time as reading, the replenishment data in which the date and time when the oil liquid is replenished to each storage tank 5 is included in the predetermined period is read out from the replenishment data file, and these read reservation data and replenishment data are output to the storage amount management device 8. To do.

Then, the stock amount management control unit 84 of the storage amount management device 8 to which the reservation data and the replenishment data included in the predetermined period are supplied shifts to the processing from step 7 to step 8 and step 7 At, the quantity for each liquid type is calculated from the liquid type and the quantity of the oil liquid contained in the reservation data supplied from the host computer 6, and the process proceeds to step 9. That is, in step 8, when there are a plurality of reservation data having the same liquid type, by calculating the total amount of these same liquid types, which liquid type from the oil tank place to the outside of the oil tank is calculated within the predetermined period. It calculates how many quantities will be carried out.

In the next step 9, the quantity for each kind of liquid is calculated from the kind and quantity of the oil liquid contained in the replenishment data supplied from the host computer 6 in the above step 7, and in step 10 Move to processing. That is, in step 9, when there are a plurality of replenishment data having the same liquid type, by calculating the total amount of these same liquid types, which liquid is stored in each storage tank 5 within the predetermined period at the oil tank location. It calculates how many seeds will be replenished.

Step 10 is a step of calculating the quantity of each type of oil liquid scheduled to be stored in each storage tank 5 of the oil tank after the predetermined period has elapsed. That is, the quantity for each liquid type to be carried out from the oil tank found in step 8 is subtracted from the quantity for each liquid type stored in the oil tank found in step 4. Further, by adding the quantity for each liquid type obtained in step 9 to the subtracted quantity for each liquid type, it is planned that the quantity is stored in each storage tank 5 of the oil tank after the lapse of the predetermined period. Calculate the quantity of each type of oil liquid. In addition, this step 10 corresponds to a calculating means.

Next, the storage amount management control unit 84 that has performed the processing of step 10 performs step 4 in step 11.
The quantity for each liquid type stored in the oil tank location determined in step 8, the quantity for each liquid type to be carried out from the oil tank location determined in step 8, and each liquid value determined in step 9 The quantity for each species and the quantity for each species of the oil liquid to be stored in each storage tank 5 of the oil tank obtained in step 10 are output to the display unit 80. The step 11 corresponds to the output means. As a result, the display 80 displays the contents supplied from the storage amount management controller 84 as shown in FIG.

As described above, in the present embodiment, when the operator wants to know the type and quantity of the oil liquid stored in each storage tank 5 after a predetermined period from the present, the keyboard 8b is used for the predetermined period. Input to the storage amount management control unit 84 of the storage amount management device 8, the quantity for each liquid type currently stored in the storage tank 5 and each liquid type to be carried out from the oil tank within the above-mentioned predetermined period. Based on the quantity of each type and the quantity of each type of oil liquid to be replenished to each storage tank 5 of the oil tank within the above-mentioned predetermined period, it is stored in each storage tank 5 of the oil tank after the above-mentioned predetermined period. The quantity of each oil type is calculated and displayed on the display 80.

Therefore, the operator can know the quantity of each type of the oil liquid stored in the oil tank after a predetermined period of time. It is possible to predict that it will occur, and it is possible to order the oil liquid to be replenished to the oil liquid to each storage tank 5 based on this prediction, so that the oil liquid is insufficient in the storage amount in the storage tank 5, It can be prevented that the product cannot be shipped.

Further, in the conventional one in which a predetermined amount of the oil liquid is replenished to the storage tank 5 every predetermined period, for example, when the oil liquid is not often shipped within the predetermined period, a tanker is used. It is useless that the truck, the truck 3 and the like come to supply the oil liquid to the storage tank 5 at the oil tank. However, in the storage amount management device 8 of the present embodiment, the waste amount can be prevented because the storage amount of the oil liquid in each storage tank 5 after the predetermined period is accurately known.

In the above embodiment, when a predetermined period is input to the ten-key pad 83, the quantity for each liquid type after the predetermined period is displayed on the display 8a, and the operator can display the quantity for each displayed liquid type. Based on the above, it is determined whether or not the oil liquid should be replenished, but the storage amount management control unit 84 itself may be configured to determine whether or not the oil liquid should be replenished. In this case, a predetermined amount is stored in advance in the memory 85, and when the number of each liquid type after the predetermined period is smaller than the predetermined amount, the fact is indicated by a display 8a or a voice alarm (not shown). ) Etc. to inform the operator that the oil liquid will be insufficient after a predetermined period, or automatically order the oil liquid that will be insufficient using a communication line such as a telephone line. Good.

Further, in the above embodiment, the ten-key pad 83 is provided for inputting the predetermined period. However, if the predetermined period is set in advance to one period such as one day or one week, for example. , The numeric keypad 83 becomes unnecessary. That is, for example, the predetermined period is stored in the memory 85 in advance, and when the operator operates the inventory amount confirmation key 82, the predetermined period is read from the memory 85, and the predetermined period is output to the host computer. If the reservation data and the replenishment data within the predetermined period are obtained from the host computer 6, the ten-key pad 83 becomes unnecessary.

Further, in the above embodiment, when the operator operates the inventory amount confirmation key 82, the inventory amount management device 8 is operated and after a predetermined period input by the numeric keypad 83, each storage tank 5 of the oil tank place. Although the quantity of each liquid type stored in the display unit 80 is displayed on the display 80, it is stored in each storage tank of the oil tank regardless of whether or not the operator operates the inventory amount confirmation key 82. The quantity of each liquid type may be constantly displayed on the display 80. That is, the predetermined period stored in the numeric keypad 83 or the memory 83 is output to the host computer 6 at predetermined predetermined time intervals (for example, 5 minutes), and the host computer 6 outputs the reservation data and the replenishment data within the predetermined period. The inventory quantity confirmation key 82 itself is not necessary in this case.

Further, in the above-mentioned embodiment, the type and quantity of the oil liquid stored in the oil tank place are displayed on the display unit 80 after a predetermined period of time, but the present invention is not limited to this, and the predetermined period is not limited to this. The type of oil liquid stored in each storage tank 5 and the number thereof may be displayed on the display 80 later.

Further, in the above embodiment, the storage amount of the oil liquid in each storage tank 5 is calculated by the storage amount management control unit 84 itself, and for example, the liquid level gauge 26 itself is used for each storage tank 5. In the case where the liquid level gauge 26 has a function of calculating the storage amount of the oil liquid in the inside, if the storage amount is input from the liquid level gauge 26, the storage liquid amount management control unit 84 itself can perform the above operations. It goes without saying that it is not necessary to calculate the storage amount in the storage tank 5.

Further, in the above embodiment, the case where the storage amount management device of the present invention is applied to the oil tank place is explained, but the storage amount management device of the present invention is not limited to the oil tank place. It goes without saying that, for example, the storage amount management apparatus of the present invention may be applied to a liquid supply station that supplies a chemical solution from a storage tank that stores the chemical solution or the like.

[0040]

As described above, according to the storage amount management apparatus of the present invention, the liquid amount detected by the storage liquid amount detecting means and the liquid to be shipped during the predetermined period stored in the planned shipping liquid amount storage means. By calculating the difference with the liquid amount of, the calculation means calculates the number of liquids in the storage tank after a predetermined period.
The worker can know the quantity of the liquid stored in the liquid supply station after the predetermined period of time, and thus can prevent the shortage of the stored amount after the predetermined period of time.

[Brief description of drawings]

FIG. 1 is a block diagram of each device in an oil tank to which an embodiment of a storage amount management apparatus according to the present invention is applied.

FIG. 2 is a diagram showing a configuration of a storage amount management device 8.

FIG. 3 is a flowchart showing a control configuration of a storage amount management control unit 84 of the storage amount management device 8.

[Explanation of symbols]

5 Storage Tank 6 Host Computer 6a Memory (Scheduled Liquid Volume Storage Means) 8 Storage Volume Management Device 26 Liquid Level Gauge 84 Storage Volume Management Control Unit (Calculation Unit / Output Unit / Stored Liquid Volume Detection Unit) 85 Memory

Claims (1)

[Claims] 1. A storage tank for storing a liquid, a storage liquid amount detection means for detecting the amount of the liquid stored in the storage tank, and a liquid amount of the liquid to be shipped in a predetermined predetermined period is stored in advance. And a calculating means for calculating a difference between the liquid amount detected by the storage liquid amount detecting means and the liquid amount of the liquid stored in the expected shipping liquid amount storing means, and the calculating means. A storage amount management device comprising: an output unit that outputs a calculation result calculated by.