JP5509184B2 - Fuel tank fuel replenishment determination device - Google Patents

Description

The present invention is a fuel tank, for example, about the refueling determination equipment gas station.

  Conventionally, gas tanks, factories, offices, or general households have been equipped with fuel tanks as equipment for storing liquids and gases such as oil and gasoline. It was done by the manager of the factory, office, or the landlord or housewife of each household. Managers, landlords, and housewives checked the level of the tank from time to time, and when the amount was below a certain level, they ordered from the dealer by phone or fax. The distributor who received the order instructs the distribution center to deliver and replenish the ordered quantity on the specified delivery date.

  According to Patent Document 1, a distributor monitors the amount of tanks in factories, offices, or general households, so that when the amount of inventory falls below a certain amount, the seller distributes a certain amount of liquid or gas. A method for instructing the delivery center to replenish, deliver, and charge the cost to the factory, office or general household according to the amount of replenishment at a later date is described.

  In addition, Patent Document 2 includes the transportable amount to the bulk storage tank at the customer site, the transport unit price, the gas unit price and the filling amount of the gas when the bulk gas lorry vehicle is dispatched according to demand forecast. Input the amount of evaporation of the bulk gas determined in advance by the storage volume and the transport distance of the vehicle to obtain the output value that minimizes the cost of delivery plan of the bulk gas lorry vehicle, and the bulk lorry vehicle that dispatches by the output value to minimize A delivery planning system for making a delivery plan for a bulk gas lorry vehicle to be determined is described.

JP 2003-186955 A Japanese Patent No. 3682876

  The present invention provides a fuel replenishment plan so that fuel tanks installed in gas stations, factories, offices, or general households can be replenished so that they do not run out of stock, and are used by vendors. Create a delivery plan so that the transport capacity is as close as possible to 100% every day so that there is no empty space in the tank truck's hatch structure, and replenish the fuel in the fuel tank that can reduce delivery loss An object of the present invention is to provide a determination device and a fuel tank replenishment determination method.

In the present invention, the amount of replenishment until each fuel tank is filled by replenishment of fuel is set as the maximum replenishment amount, and the amount of replenishment up to a predetermined order point from the inventory amount and the elapsed time obtained from the inventory prediction calculation is minimized. Storage means for storing as a replenishment amount, and storing a predetermined hatch capacity and number of hatches for each hatch of each tank lorry in the hatch configuration;
An inventory forecast calculation means for calculating and forecasting the inventory amount of each fuel tank from the fuel inventory forecast calculation;
General order quantity information input means for inputting general order quantity information indicating that replenishment is performed with priority regardless of the stock quantity of each fuel tank;
Calculate the maximum and minimum replenishment amount for each fuel tank, set the maximum and minimum replenishment amount for each fuel tank, and calculate that the stock amount of any fuel tank is less than the order point by inventory forecast calculation When a decision is made, it is decided to preferentially replenish the general order quantity, and then a delivery plan by tank lorry that the fuel tank is to be replenished within the range of the maximum replenishment quantity and the minimum replenishment quantity, and the set maximum replenishment is established. It is necessary to calculate whether each tank lorry hatch can be filled when it is replenished in the range of the amount and the minimum replenishment amount, and when the result that cannot be filled is output, it is necessary to fill each tank lorry hatch Arbitrary fuel tanks and other optional fuels are calculated by calculating the replenishment amount and stacking and replenishing within the range of the maximum replenishment amount and the minimum replenishment amount of other optional fuel tanks. A fuel replenishment apparatus for determining a fuel tank, characterized in that it comprises a replenishing amount determination means for determining the replenishment rate of the tank, the.

The apparatus or method described above, determining means replenishing amount about the said fuel tank is characterized in that the determination of the minimum replenishment rate of replenishment in descending order in the minimum replenishment rate.

  The apparatus or method described above is characterized in that when there is no general order quantity information, the number of hatches corresponding to general orders is set to zero.

  In any of the above-described apparatuses or methods, the set minimum replenishment amount is a replenishment amount determined by a predetermined order point for a tank stock amount determined by the tank stock amount and elapsed time at the time of measurement and a predetermined stock allowable limit value. The minimum replenishment amount that is set is determined by the replenishment amount from the stock allowable limit value to the order point or the replenishment amount from the stock amount predicted at the time of replenishment until the fuel tank is full.

  Here, the fuel tank is used to mean a fuel container for storing fuel, such as oil and gasoline, installed in an office such as a gas station (gasoline station), a factory, a building, or a general household. Or gaseous. In addition, the fuel includes not only the same type but also similar types.

  According to the present invention, a fuel replenishment plan can be made so that fuel can be replenished so that a fuel tank installed in a gas station, a factory, an office, or a general household does not run out of stock. , Create a delivery plan so that the shipping capacity of the tank lorry hatch used by the seller does not become empty and make the transport capacity as close to 100% as possible every day, and reduce the loss of delivery A fuel tank fuel replenishment determination device and a fuel tank fuel replenishment determination method that can be provided are provided.

The figure which shows schematic structure of the Example of this invention. The block diagram which shows the structure of the Example of this invention. Sales forecast calculation conceptual diagram. Sales performance and sales volume integrated value model diagram. The fuel tank inventory quantity increase / decrease model diagram. Tank lorry hatch assignment conceptual diagram. The tank replenishment amount determination processing flowchart.

  Embodiments of the present invention will be described below with reference to the drawings. In the following examples, oil is used as fuel, and a fuel tank of a gas station is used as a fuel tank, that is, a gas station used in a normal sense, but the present invention is not limited to these examples.

  FIG. 1 shows the configuration of an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes an order delivery center of an oil major sales company, which accepts orders from a gas station and issues delivery instructions to a shipping site. The oil delivery company order delivery center 1 is provided with a reception computer 5, a replenishment amount calculation computer 6, a delivery planning computer 7 and a delivery instruction computer 8, and the amount of oil tank stock transmitted from the gas stations 3 and 4. And the sales results are stored in the auxiliary storage device 12 by the replenishment amount calculation computer 6, the future sales quantity is predicted based on the accumulated sales results, and the fuel tank inventory amount also stored in the auxiliary storage device 12. The estimated delivery date that is the day before the scheduled date below the preset order point, the minimum replenishment amount that restores the tank to the order point on the scheduled delivery date, and the maximum replenishment amount calculation that fills the fuel tank Applies to The delivery calculation computer 8 formulates a delivery plan by giving priority to the order information received on the same delivery date received via the order receiving computer 5 from the gas station through a normal ordering action, and then selects any of the gas stations 3 and 4 in the same direction. The amount that can be delivered, that is, the delivery amount is recovered from the minimum replenishment amount (described later) to the fuel tank ordering point, and the maximum replenishment amount that fills the tank is stacked. The quantity to be fully loaded is adjusted, and the replenishment amount and the delivery plan result determined as a result are transmitted to the delivery instruction computer 8 and delivered to the shipping site.

  On the other hand, the gas stations 3 and 4 that are the targets of the tank replenishment amount calculation in the order delivery center 1 are provided with a fuel tank 9 for storing oil, and the fuel tank 9 has a liquid level gauge for detecting the stock quantity and the stock quantity measuring device 10. Is equipped. Further, a sales record input device 13 for inputting the sales record is also installed, and when the inventory measuring device 10 breaks down, it is possible to input the inventory amount.

  Note that the liquid level gauge is applied at the time of inventory detection because oil is assumed in this embodiment, and in the case of gas or the like, a pressure gauge such as a differential pressure gauge may be applied.

  In this embodiment, the tank inventory amount and the sales record from the gas station 3 or 4 are supplied from the inventory measurement device 10 and the sales record input device 13 via the wide area network 11 and the local area network 2. However, a public line, a dedicated line, a PHS line, or a mobile phone line may be used as a transmission means.

  Further, in this embodiment, the tank inventory amount and the sales record from the gas stations 3 and 4 are obtained from the inventory measurement device 10 and the sales record input device 13 via the wide area network 11 and the local area network 2. In this case, a method of transmitting from the inventory amount measuring device 10 and the sales result input device 13 side to the auxiliary storage device of the replenishment amount calculation computer 6 is adopted. As a response, a method of sucking up the tank inventory amount and the sales record from the inventory amount measuring device 10 and the sales result input device 12 side may be used.

  FIG. 2 shows fuel replenishment composed of various computers (in the case of the figure, order computer 5, replenishment amount computer 6, delivery planning computer 7, delivery instruction computer 8) and various communication means arranged in the order delivery center 1. 2 is a block diagram showing a determination device (CPU) 21. FIG. Although a plurality of computers are used in the example of FIG. 1, it may be configured by a single computer.

  In FIG. 2, the fuel replenishment determining device 21 includes an inventory prediction calculating means 22, an input means 23, a storage means 24, a fuel tank (A) specifying means 25, a fuel tank (A) replenishment amount determining means 26, a fuel tank ( B) specifying means 27, fuel tank (B) replenishment amount determining means 28, and screen display means 29.

  The inventory forecast calculation means 22 performs petroleum inventory forecast calculation for each fuel tank 9 as will be described later.

  The input means 23 is inputted with other information about the inventory quantity and the sales record and the general order quantity regarding the fuel tanks 9 of the gas stations 3 and 4 through various communication means 30. Here, the general order is an order that is required to be replenished with priority regardless of the inventory amount of the fuel tank 9, and a response is required by quick replenishment.

The storage means 24 includes the gas stations 3 and 4 and the fuel tank 9 to be managed, the order point (including the order date and time, including specific points related to the order), the set maximum replenishment amount, the set minimum replenishment amount, and the inventory allowable limit. The value, the tank lorry to be managed, the number of hatches for each tank lorry and the capacity for each hatch are stored and stored. Here, the set maximum replenishment amount is as large as possible near the stock allowable limit (including the stock allowable limit) within the tank full upper limit and the stock allowable limit amount. For example, a predetermined first refill amount is set so as to fill the fuel tank. This is the set maximum replenishment amount determined depending on the line, and the allowable stock limit amount indicates the lower stock limit, and it must be avoided that the stock amount decreases beyond the allowable stock limit on the delivery date. The set minimum replenishment amount is a set minimum replenishment amount that is determined depending on a predetermined second line within a range that does not reach the set maximum replenishment amount. A typical example of the set minimum replenishment amount is a replenishment amount determined by an order point and a stock allowable limit value. In addition, even before the inventory allowable limit amount, it should be as small as possible (including zero) beyond the order point, exceed the order point, and in advance with the replenishment amount for the order point when measured. The set minimum replenishment amount can be determined.

The ordering point is a point at which fuel is ordered when the tank inventory amount reaches a certain point due to the relationship between the tank inventory amount and the elapsed time, and is typically determined in a typical example. The scheduled delivery date can be set the day before the scheduled date below the order point. Thus, the scheduled delivery date is a date that is assumed and determined in relation to the order point, that is, the order date and time. This date can include the date and time, but here it will be described as “day”. Further, the order date can be determined in advance in relation to the stock quantity. In such a case, although it is a specific point, it is related to ordering and can be handled as an order point. The inside of the tank lorry 64 is divided and divided for each hatch 76 , but the number of hatches is determined by the tank lorry, and the fuel capacity of each hatch is similarly determined. These data are stored in the storage means 24 in advance.

  The fuel tank (A) specifying means 25 assumes a scheduled delivery date based on the forecasted inventory quantity calculated by the inventory forecast calculating means 22, reaches the set maximum replenishment quantity by the scheduled delivery date, and falls within the allowable inventory limit quantity. Then, the fuel tank (A) or / and the gas stations 3 and 4 that require replenishment of the maximum replenishment amount are set. In addition to the above-mentioned shipping date and time, the scheduled delivery date may be determined in advance from a rule of thumb as the date when a certain date and time reaches the set maximum replenishment amount, or may be combined with both.

The fuel tank (B) specifying means 27 assumes the estimated delivery date based on the similarly estimated stock amount, reaches the set minimum replenishment amount, is within the set maximum replenishment amount, and replenishes the set replenishment amount. performing capable der Ru setting fuel tank (B) or / and gasoline tanks 3,4.

The fuel tank (A) replenishment amount determination means 26 inputs the general order quantity information, calculates the number of hatches corresponding to the general order quantity necessary and sufficient to secure the general order quantity for a specific tank truck, and calculates the number of hatches from the number of hatches. Subtract the number of hatches corresponding to the general order quantity to calculate the first capacity margin hatch number, calculate the maximum replenishment amount of the specified fuel tank (A), and the first capacity sufficient to cover the calculated maximum replenishment amount When there is a surplus hatch capacity corresponding to the number of surplus hatches , that is, when an empty hatch remains, it is determined to replenish the maximum replenishment amount for the specified fuel tank (A).

The replenishment amount determination means 28 for the fuel tank (B) calculates the second capacity margin hatch number by subtracting the hatch number necessary and sufficient to cover the maximum replenishment amount from the first capacity margin hatch number. Calculate the minimum refill amount of the specified fuel tank (B) when there is a surplus hatch number, that is, when there are remaining empty hatch numbers, and refill within the range of the calculated minimum refill amount and maximum refill amount To decide.

  The maximum replenishment amount and the minimum replenishment amount used above are amounts used when the replenishment is actually performed according to the concept corresponding to the set maximum replenishment amount and the set minimum replenishment amount.

  In the above-described example, the set maximum replenishment amount and the set minimum replenishment amount are used in two lines, but this may be gradual using two or more lines. Further, although the unit of hatch is 1, an empty hatch may be a value smaller than “1”, for example, 0.5.

  Further, the replenishment amount determination means 28 for the fuel tank (B) desirably determines the replenishment of the minimum replenishment amount in descending order of the minimum replenishment amount, but is not limited thereto. When there is no general order quantity information, the number of hatches corresponding to general orders is naturally zero. In addition, the first capability margin hatch number may be zero or the second capability margin hatch number may be zero.

  The screen display means 29 determines the fuel tank 9 specified by the fuel tank (A) specifying means and / or the gas stations 3 and 4 (which also means the fuel tank 9), and the replenishment amount of the fuel tank (A). The replenishment amount determined by the means 26, the fuel tank (B) specified by the fuel tank (B) specifying means 27, and the replenishment amount determined by the replenishment amount determination means 28 of the fuel tank (B) are displayed on one screen. To be configured and displayed. The generated information is stored and stored in the storage unit 24. The data created in this way is transmitted to an external screen display device (see FIG. 1).

  According to the above configuration, the following example can be realized.

The one or more fuel tanks 9 and stock quantity measuring apparatus for measuring the amount of inventory, as well as comprising an input device for inputting sales Quantity in gas stations 3,4 which owns the fuel tank 9, the stock The quantity measuring device and the sales result input device 23 are connected to the replenishment quantity calculation computer of the order delivery center 1 of the oil major sales company via the network, and the inventory quantity in the fuel tank is periodically fetched by the inventory quantity measuring apparatus. The sales record is input for each sale by the sales record input device 23, and the acquired inventory quantity and the input sales record are transmitted to the replenishment amount calculation computer 6 of the order delivery center 1 via the network 11 for auxiliary storage. In addition to being stored in the device 12, the replenishment amount calculation computer 6 predicts the future sales quantity based on the stored sales performance information, and also stores it in the auxiliary storage device. Taking into account the stock amount of the fuel tanks 9 loaded, the estimated delivery date, which is the day before the scheduled date below the preset order point, the minimum replenishment amount for recovering the tank to the order point on the scheduled delivery date, and Since the information on the maximum replenishment amount that fills up the fuel tank can be output to the display device, the oil retailer can predict when the gas stations 3 and 4 will run out of stock, and the replenishment amount is also minimal. Since the replenishment amount to the maximum replenishment amount are shown, the replenishment amount can be determined flexibly according to the delivery capability at the time of delivery, and the delivery loss can be minimized.

The transmission, delivery date output from the replenishing amount calculating computer 6, the minimum replenishment rate to restore the delivery date tank 9 to reorder point, and the maximum replenishment amount of the fuel tank 9 filled in the delivery plan computer 7 Then, after planning the delivery plan by giving priority to the order information received on the same scheduled delivery date received through the order receiving computer 5 from other gas stations through the normal ordering action, the quantity that can be delivered to any gas station in the same direction That is, since the delivery amount is changed between the minimum replenishment amount for recovering to the order point of the fuel tank 9 and the maximum replenishment amount for filling the tank, the loading is determined to be the full load amount of the tank lorry. , When ordering with general order information of fixed replenishment quantity ordered by normal ordering, general order information is given priority and tank lorry empty hatch is full The replenishing amount to adjust the range of the maximum delivery amount from the minimum delivery amount can be brought close to 100% as possible a loading ratio.

  Also, the quantity that can be delivered to any of the gas stations 3 and 4 in the same direction, that is, the delivery amount is changed from the minimum replenishment amount that recovers to the order point of the fuel tank 9 to the maximum replenishment amount that fills the tank. If the amount of replenishment is less than the full capacity of the tank lorries, the information is scheduled to be replenished the next day or after the next day. , 4 only, if tank lorry still has spare capacity, deliver to the gas station where inventory will run out if the next day is not delivered, and adjust the replenishment amount from the minimum delivery amount to the maximum delivery amount before delivery As a result, it is possible to level out variations in daily delivery volume.

  In addition, the amount of deliverables at any gas station in the same direction, that is, the delivery amount is changed from the minimum replenishment amount that recovers to the tank order point to the maximum replenishment amount that fills the tank, and the tank lorries are stacked. If the replenishment amount is less than full, the oil for the same gas stations 3 and 4 that are not less than the order points of different types will be packed within the replenishable quantity range and within the loadable range. By combining and delivering different types of oil for the same gas station, the number of times of replenishment to the same gas station can be reduced, leading to improved customer service and delivery. Efficiency is also improved.

Further, the delivery planning computer 7 has three delivery schedules: a scheduled delivery date that is the day before the scheduled date below the ordering point, a minimum replenishment amount that restores the tank to the ordering point on the scheduled delivery date, and a maximum replenishment amount that fills the tank. Based on the information, a delivery plan is prepared, the replenishment amount is determined, and the delivery plan result is transmitted to the delivery plan computer 7 so that oil is delivered based on the delivery plan result. Order information from orders 3 and 4 and delivery information based on the replenishment amount determination method can be efficiently combined and systematically delivered without distinction, delivery loss is reduced, and delivery efficiency is greatly improved. This can improve customer service and reduce delivery costs.

In the above example, the set minimum replenishment amount is set to a replenishment amount determined by a predetermined order point for the tank stock amount determined by the tank stock amount and elapsed time at the time of measurement and a predetermined stock allowable limit value, and the minimum replenishment amount Is the replenishment amount from the stock allowable limit value to the order point, but the minimum replenishment amount can be determined as the replenishment amount from the stock amount predicted at the time of replenishment to the fullness of the fuel tank .

FIG. 3 is a diagram showing the concept of sales forecast calculation by the inventory forecast calculation means 22. In FIG. 3, the tank inventory amount and the sales record 21 stored in the auxiliary storage device 12 (storage means 24 in FIG. 2) of the replenishment amount calculation computer 6 are stored in the replenishment amount calculation computer 6 (inventory prediction calculation means in FIG. 2). ) A predicted value 32 is obtained by a simple regression equation from the daily sales performance data 31 for a certain fixed period in the past, and the daily sales performance data 31 for a certain fixed period in the past is tabulated every month, and the average value is calculated for each month. The periodic fluctuation value 33 calculated as the sales performance data is obtained. Next, the daily sales performance data for a certain period in the past is totaled for each month, the median average value 34 for each month is obtained, and the average value for each month is divided by the median average value to obtain the seasonal ratio for each month. 36 is obtained, and an average value of the seasonal ratios is obtained, and a numerical value obtained by adjusting each month is set as a seasonal index value 38 for each month. Next, the sales performance data for each day of a certain period in the past is aggregated for each day of the week, the moving average value 35 for each day of the week is obtained, and the average value for each day is divided by the moving average value to calculate the seasonal ratio for each day of the week. 37 is obtained, and a numerical value obtained by adjusting each day of the week for obtaining an average value of the seasonal ratio is set as a seasonal index (day of the week) 39 for each day of the week. Finally, by multiplying the slope a43 of the approximate straight line obtained from the simple regression equation by the seasonal index (day of the week) 39, the seasonal index (month) 38, and the special index random index 40 due to events, etc., the future multi-day sales quantity forecast 41 is obtained. obtain.

  FIG. 4 is a diagram showing a sales performance and a sales volume integrated value model. In FIG. 4, the daily sales volume (sales performance) 42 with respect to the sales forecast volume 41 is measured, and the slope “a” of the sales volume approximation line is obtained from the average value of the sales volume (upper figure). From this “a”, the sales quantity approximation straight line Y = ax + b shown in the following figure is obtained (b: a constant), and the sales quantity integrated value with respect to the number of elapsed times is obtained. As a result, the amount of oil sold at the gas stations 3 and 4 can be predicted, and therefore, petroleum inventory prediction calculation can be performed.

  FIG. 5 is a diagram showing a stock amount increase / decrease model in the fuel tank.

FIG. 5 shows the fuel tank inventory with respect to the elapsed time. Note that, in the figure, unlike the actual increase / decrease, the manner in which the inventory amount increases / decreases is approximated by a straight line. In this figure, the tank upper limit indicates that the tank is full, and the tank lower limit indicates the stock allowable limit value, which is the first set line. The ordering point, which is the second setting line, indicates that the ordering operation is performed automatically or manually when the tank stock reaches the ordering point. A zigzag line indicates the tank inventory 52, which is reduced by sales and increased by replenishment, and 54 is an inventory measurement point. The stock quantity is measured at the stock measurement point 54. Although FIG. 5 shows the elapsed time, it may be the number of elapsed times. In FIG. 5, the replenishment amount from the replenishment point 53 which is the lowest point of the zigzag point to the tank upper limit shows a typical maximum replenishment amount. The replenishment amount from the replenishment point beyond the order point of the zigzag line to the order point indicates a typical minimum replenishment amount. In FIG. 5, the ordering point is displayed by one dotted line, but other ordering points can be set for the minimum replenishment amount. In this case, the order point is on the upper side of the order point shown in FIG. As shown in FIG. 5, in this embodiment, the first line and the second line are set to determine the set maximum replenishment amount and the set minimum replenishment amount. It is characterized in that the amount is determined according to the hatch capacity.

FIG. 6 is a diagram showing the concept of tank lorry hatch assignment. In the case of this example, the tank lorry 64 has seven hatches 76 . Each hatch 76 shows an example in which 4,4,4,2,2,4,4 kl of oil can be loaded, respectively. This load capacity is the hatch capacity, and the capacity of the tank truck is 24 kl.

6, 69 denotes a stock allowable limit line (tank inventory allowable lower limit), 70 denotes a stock line, 7 denotes a tank on KiriMitsuru Cup line, 65 denotes a stock tolerable amount, 66 orders A dot is indicated, 67 indicates a minimum replenishment amount, and 68 indicates a maximum replenishment amount. On the side shown in FIG. 6, in the fuel tank 9, the maximum replenishment amount 68 is a replenishment amount between the tank full line upper limit 77 and the inventory allowable limit line. In this case, the set maximum replenishment amount is It matches the maximum replenishment amount. The actual maximum replenishment amount may be within 10 kl. In this example, the maximum replenishment amount is 10 kl. Minimum replenishment rate 67 is a replenishing amount of between order point 66 and standing Kuramoto capacity limit line 69, in this case, setting the minimum replenishment rate matches the minimum replenishment rate. The actual minimum replenishment amount may be within 2 kl. In this example, the minimum replenishment amount is 2 kl. The state set to 2,10 kl is referred to as supplement information 61.

  A future tank inventory amount is predicted from the predicted sales quantity 41 and the tank inventory amount 52, and the day below the tank inventory amount 52 and the order point 66 is specified, and the day before that is set as the scheduled delivery date.

The tank replenishment amount generation for determining two tank replenishment amounts, ie, the minimum replenishment amount 67 for recovering the tank to the order point on the scheduled delivery date and the maximum replenishment amount 68 for filling the tank is executed. As a result of the execution, the replenishment amount of the fuel tank 9 , the tank inventory and the sales performance are obtained for each gas station shown in the output 75 (FIG. 7), and the information is output on the display device and also sent to the delivery planning computer 7. Sent. Delivery schedule computer 7 estimated delivery date received, the minimum replenishment rate 67, it is sequentially allocated to seven hatch 76 shown in tank truck hatch configuration summarized by quarters each information of the maximum replenishment rate 68. In this case, general order information (fixed) 62 received from the gas stations 3 and 4 by a normal ordering action is assigned with the highest priority. For example, if 5 hatches 16kl of 7 hatches are filled, one tank lorry 64 is provided. Can not be full. In this case, the replenishment information 61 of the gas stations 3 and 4 in the same direction a is taken out, and the loading amount is changed between the minimum replenishment amount 2 kl to the maximum replenishment amount 10 kl , so that the empty hatch 8 kl of the tank lorry 64 becomes full. A process 63 for inflating is performed so that there is no uselessness such as carrying air. In the present embodiment, it is assumed that the general order information (fixed) 62 is stacked, but if the general order information (fixed) 62 is not included, it is treated as zero and all are determined from the sales forecast value and the tank inventory. You may process with the information produced | generated from the replenishment method.

  FIG. 7 shows a tank replenishment amount determination process flow.

  In FIG. 7, sales results (every day), tank inventory (CSV file), and general order quantity information are input 71 via the input means 23 (FIG. 2). The reported sales quantity that has been statistically entered may be entered.

Sales forecast future sales volumes based according to the procedure described above on the basis of these data, it performs sales prediction 72, and sales prediction means value data. Sales volume predicted value and to predict the tank inventory amount of future tank inventory levels based on the measurement point in time (tank inventory amount prediction 73), and tank inventory amount prediction value data.

  A tank replenishment amount is generated according to the above-described method based on the predicted value of the tank inventory amount and the order point, and is set as tank replenishment amount generation data 74. Based on this result, in accordance with the method described above, tank inventory, sales performance and replenishment amount are obtained for each gas station and each fuel tank, the replenishment amount is determined, and the used hatch for the target tank truck is determined (hatch assignment). Are displayed on the screen, and output 75 is performed. This screen is displayed on the screen of the delivery plan computer 7 shown in FIG.

  According to this embodiment, the fuel tank 9 can be replenished at an arbitrary timing so as not to run out of stock, and the replenishment amount that has been fixed at a fixed amount in the past can be widened to have a liquid or gas distributor. In order to utilize the constant transportation capacity as close as possible to 100% every day, a delivery plan is created so that there is no empty space in the tank truck hatch, and the refill amount of the liquid or gas tank is determined with minimal delivery loss. To be able to provide a method.

DESCRIPTION OF SYMBOLS 1 ... Order delivery center, 2 ... Local area network, 3, 4 ... Gas station, 5 ... Order receiving computer, 6 ... Replenishment amount calculation computer, 7 ... Delivery planning computer, 8 ... Delivery instruction computer, 9 ... Fuel tank, 10 ... Inventory quantity measuring device, 11 ... Wide area network, 12 ... Auxiliary storage device, 13 ... Sales performance input device, 21 ... Fuel replenishment determining device, 22 ... Inventory forecast calculation means, 23 ... Input means, 24 ... Storage means, 25 ... Fuel tank (A) specifying means, 26 ... Fuel tank (A) replenishment amount determining means, 27 ... Fuel tank (B) specifying means, 28 ... Fuel tank (B) replenishing amount determining means, 29 ... Screen display Instructing means, 31 ... sales performance data, 64 ... tank truck , 76 ... hatch .

Claims (1)

The amount of replenishment until each fuel tank is filled with fuel is the maximum replenishment amount, and the amount that is replenished from the inventory amount and elapsed time obtained from the inventory prediction calculation to a predetermined order point is stored as the minimum replenishment amount. And storage means for storing a predetermined hatch capacity and number of hatches for each hatch of each tank lorry in the hatch configuration,
An inventory forecast calculation means for calculating and forecasting the inventory amount of each fuel tank from the fuel inventory forecast calculation;
General order quantity information input means for inputting general order quantity information indicating that replenishment is performed with priority regardless of the stock quantity of each fuel tank;
Calculate the maximum and minimum replenishment amount for each fuel tank, set the maximum and minimum replenishment amount for each fuel tank, and calculate that the stock amount of any fuel tank is less than the order point by inventory forecast calculation When a decision is made, it is decided to preferentially replenish the general order quantity, and then a delivery plan by tank lorry that the fuel tank is to be replenished within the range of the maximum replenishment quantity and the minimum replenishment quantity, and the set maximum replenishment is established. whether individual hatch tank trucks can be filled calculated when planned so that replenishes the range of amounts and minimum replenishment rate, when the result can not be filled is output, the full each hatch of tank trucks The required replenishment amount required for the fuel tank is calculated, and within the range of the maximum replenishment amount and the minimum replenishment amount of other optional fuel tanks, the optional replenishment tank and other fuel tanks and others Refueling determination device for a fuel tank comprising: the replenishing amount determination means for determining the replenishment rate of any fuel tank, a.

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