JP2021050090A - Interference time ratio output device, operational availability information output device, interference time ratio output method and program, and operational availability information output method and program - Google Patents

Abstract

To derive the ratio of the time when interference occurs between a plurality of transport facilities.SOLUTION: There are included: recorded information acquisition means for acquiring information which records the area where each transport facility of a plurality of transport facilities existed at each time of a plurality of times in a logistics simulation; set information acquisition means for acquiring set information which indicates the possibility of interference of the plurality of transport facilities when a plurality of transport facilities exist in a plurality of areas for a combination of a plurality of areas; evaluation value derivation means for deriving an evaluation value that evaluates the possibility of interference of the plurality of transport facilities at each time of the plurality of times; interference time ratio derivation means for deriving an interference time ratio which is the ratio of the time during which interference between the plurality of transport facilities occurs by dividing the total time of the logistics simulation for the evaluation value derived by the evaluation value derivation means; and output means that outputs the interference time ratio derived by the interference time ratio derivation means.SELECTED DRAWING: Figure 3

Description

The present invention relates to an interference time ratio output device, an operation availability information output device, an interference time ratio output method, an operation availability information output method, and a program.

A solution method that uses a genetic algorithm (GA) for transport equipment allocation in a two-step solution method that determines the work time of each equipment and the transport equipment allocation that avoids interference in the forward simulation in the order of the earliest latest work time determined by the backward simulation. Is known (see, for example, Patent Document 1).

Takashi Tanizaki et al., "Application of GA Method to Scheduling Problems in Production Processes with Interfering Cranes", 59th Joint Lecture on Automatic Control, November 10-12, 2016

When a configuration is adopted in which a physical distribution simulation is performed so that interference between a plurality of transport equipments does not occur, a plurality of transports are carried out from the recorded information that records the area in which each transport equipment of the plurality of transport equipments exists at each time of a plurality of times. It will not be possible to derive the ratio of the time during which equipment interference occurs.

An object of the present invention is to make it possible to derive the ratio of the time during which interference of a plurality of transport equipment occurs from the recorded information recording the area in which each transport equipment of the plurality of transport equipment exists at each time of a plurality of times. There is.

For this purpose, the present invention provides a recording information acquisition means for acquiring record information recording an area in which each transfer facility of a plurality of transfer facilities exists at each time of a plurality of times in a physical distribution simulation, and a plurality of areas. Setting information acquisition means and recording information acquisition means for acquiring setting information in which information indicating the possibility of interference between a plurality of transfer facilities exists when a plurality of transfer facilities exist in a plurality of areas for a combination. Based on the recorded information acquired by the above and the setting information acquired by the setting information acquisition means, an evaluation value for deriving an evaluation value that evaluates the possibility of interference of a plurality of transport facilities at each time of a plurality of times is derived. Interference time, which is the ratio of the time at which interference between a plurality of transport facilities occurs by dividing the sum of the value deriving means and the evaluation value derived by the evaluation value deriving means for the physical distribution simulation time by the physical distribution simulation time. Provided is an interference time ratio output device including an interference time ratio deriving means for deriving a ratio and an output means for outputting an interference time ratio derived by the interference time ratio deriving means.

The setting information may be information in which the presence or absence of interference of a plurality of transport equipments is set as information indicating the possibility of interference of a plurality of transport equipments for a combination of a plurality of regions.

The setting information may be information in which the probability of interference of a plurality of transport facilities is set as information indicating the possibility of interference of a plurality of transport facilities for a combination of a plurality of regions.

The setting information is information indicating the possibility of interference of a plurality of transport facilities for a combination of a plurality of areas, and is the presence or absence of interference of a plurality of transport facilities or the probability of interference of a plurality of transport facilities. It may be the information that sets the function to obtain. In that case, the function may be one that uses the attribute of the product transported by each transport facility of the plurality of transport facilities as a variable.

Further, the present invention relates to a record information acquisition means for acquiring record information recording an area in which each transfer facility of a plurality of transfer facilities exists at each time of a plurality of times in a physical distribution simulation, and a combination of the plurality of areas. It was acquired by the setting information acquisition means for acquiring the setting information in which the information indicating the possibility of interference of the plurality of transport equipments exists when a plurality of transport equipments exist in a plurality of areas, and the record information acquisition means. An evaluation value deriving means for deriving an evaluation value that evaluates the possibility of interference of a plurality of transport facilities at each time of a plurality of times based on the recorded information and the setting information acquired by the setting information acquisition means. By dividing the total of the evaluation values derived by the evaluation value derivation means for the physical distribution simulation time by the physical distribution simulation time, the interference time ratio, which is the ratio of the time when the interference of a plurality of transport facilities occurs, is derived. Comparing the sum of the interference time ratio deriving means, the interference time ratio derived by the interference time ratio deriving means, and the sum of the operating rates of a plurality of transport facilities with the sum of the upper limits of the operating rates of a plurality of transport facilities. As a result, an operation availability information output device including a determination means for determining the operation availability of a plurality of transport facilities and an output means for outputting information indicating the operation availability determined by the determination means is also provided.

Further, in the present invention, the computer recording information acquisition means acquires the recording information recording the area in which each transport facility of the plurality of transport facilities exists at each time of the plurality of times in the physical distribution simulation, and the setting of the computer. A step in which the information acquisition means acquires setting information in which information indicating the possibility of interference between a plurality of transport facilities exists when a plurality of transport facilities exist in a plurality of areas for a combination of a plurality of areas. Based on the acquired record information and the acquired setting information, the evaluation value deriving means of the computer evaluates the possibility of interference of a plurality of transport facilities at each time of a plurality of times. By dividing the total of the derived evaluation values for the physical distribution simulation time by the physical distribution simulation time, the computer's interference time ratio derivation means divides the total of the derived evaluation values by the physical distribution simulation time. Also provided is an interference time ratio output method that includes a step of deriving the interference time ratio, which is a ratio, and a step of outputting the derived interference time ratio by a computer output means.

Further, in the present invention, the computer recording information acquisition means acquires the recording information recording the area in which each transport facility of the plurality of transport facilities exists at each time of the plurality of times in the physical distribution simulation, and the setting of the computer. A step in which the information acquisition means acquires setting information in which information indicating the possibility of interference between a plurality of transfer facilities may occur when a plurality of transfer facilities are present in a plurality of areas for a combination of a plurality of areas. Based on the acquired record information and the acquired setting information, the evaluation value deriving means of the computer evaluates the possibility of interference of a plurality of transport facilities at each time of a plurality of times. By dividing the total of the derived evaluation values for the physical distribution simulation time by the physical distribution simulation time, the computer's interference time ratio derivation means divides the total of the derived evaluation values by the physical distribution simulation time. The step of deriving the interference time ratio, which is a ratio, and the judgment means of the computer, the sum of the derived interference time ratio and the total of the operating rates of the plurality of transport facilities is the upper limit of the operating rates of the plurality of transport facilities. Also provided is an operability information output method including a step of determining the operability of a plurality of transport facilities by comparing with the total, and a step of outputting information indicating the determined operability by the output means of the computer.

Furthermore, the present invention provides a computer with a function of acquiring recorded information recording an area in which each transfer facility of a plurality of transfer facilities exists at each time of a plurality of times in a physical distribution simulation, and a combination of the plurality of areas. A function to acquire setting information that sets information indicating the possibility of interference between a plurality of transport equipments when a plurality of transport equipments are present in a plurality of areas, an acquired record information, and an acquired record information. Based on the setting information, the function to derive the evaluation value that evaluates the possibility of interference of multiple transport equipment at each time of multiple times and the total of the time of the distribution simulation of the derived evaluation value We also provide a program to realize the function of deriving the interference time ratio, which is the ratio of the time when interference of a plurality of transport facilities occurs, by dividing by the time of the physical distribution simulation.

Furthermore, the present invention is obtained by comparing the sum of the interference time ratio derived to the computer and the total operating rates of the plurality of transport facilities with the total of the upper limits of the operating rates of the plurality of transport facilities. Also provided is a program for further realizing a function of determining whether or not the transport equipment can be operated and a function of outputting information indicating whether or not the determined operation is possible.

According to the present invention, it becomes possible to derive the ratio of the time at which interference of a plurality of transport equipment occurs from the recorded information recording the area where each transport equipment of the plurality of transport equipment exists at each time of a plurality of times. ..

It is a figure which showed the example of the yard where two cranes which are presupposed in the embodiment of this invention are arranged on the same track. It is a figure which showed the example of the arrangement of the storage place in a yard which is premised in embodiment of this invention. It is a block diagram which showed the functional structure example of the physical distribution establishment determination apparatus in embodiment of this invention. It is a figure which showed the specific example of the simulation result stored in embodiment of this invention. It is a figure which showed the 1st specific example of the pointing setting information stored in embodiment of this invention. It is a figure which showed the 2nd specific example of the pointing setting information stored in embodiment of this invention. (A) and (b) are diagrams showing a third specific example of the pointing setting information stored in the embodiment of the present invention. It is a figure which showed the relationship between the crane and the storage place for demonstrating the function used in embodiment of this invention. It is a figure which showed the 1st specific example of the pointing evaluation information stored in embodiment of this invention. It is a figure which showed the 2nd specific example of the pointing evaluation information stored in embodiment of this invention. It is a flowchart which showed the operation example when the physical distribution establishment determination apparatus in embodiment of this invention generates the pointing evaluation information. It is a flowchart which showed the operation example when the physical distribution establishment determination apparatus in embodiment of this invention derives a pointing time ratio. It is a figure which showed the hardware configuration example of the computer which realizes the physical distribution establishment determination apparatus in embodiment of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[Background and outline of this embodiment]
Consider a case where the sufficiency of the capacity of an overhead crane (hereinafter, simply referred to as "crane") is examined by a physical distribution simulation (hereinafter, simply referred to as "simulation").

Of course, the operating rate of each crane must be less than 100% (actually, it needs to be about 80% or less because there are breaks, inspections, etc.).

By the way, depending on the factory, a plurality of cranes may be arranged on the same track. FIG. 1 shows, as an example, a case where two cranes are arranged on the same track. In FIG. 1, it is assumed that cranes # 1 and # 2 are arranged on the same track on the ceiling of the yard α. Further, it is assumed that the product is carried in from the equipment # 1 to the yard α via the conveyor # 2, and the product is carried out from the yard α to the equipment # 2 and # 3 via the conveyors # 1 and # 3, respectively. There is.

Now, when the cranes # 1 and # 2 are arranged in this way, it is necessary to consider the orientation of the cranes # 1 and # 2. The orientation will be described below.

In FIG. 1, it is assumed that the crane # 1 is located in the west and the crane # 2 is located in the east in the yard α. Since cranes # 1 and # 2 travel on the same orbit, crane # 1 cannot be located east of crane # 2.

FIG. 2 is a diagram showing an example of arrangement of storage areas in the yard α. In FIG. 2, in the yard α, the storage area # 1 to the west of the conveyor # 1, the storage area # 2 to the east of the conveyor # 1 to the west of the conveyor # 2, and the storage area # 2 to the east of the conveyor # 2 to the west of the conveyor # 3. It is assumed that 3 is located to the east of conveyor # 3, and storage # 4 is located to the east of conveyor # 3. When the yard # 1 to # 4 are arranged in this way, for example, the crane # 1 cannot exist in the yard # 3 and the crane # 2 cannot exist in the yard # 2. Such a situation where a plurality of cranes interfere with each other is called a pointing.

The logistics simulator (hereinafter, simply referred to as "simulator") also considers the pointing of multiple cranes so that the pointing does not occur, that is, the ratio of the time during which the pointing occurs to the simulation time (hereinafter, "" Ideally, it is executed so that the "pointing time ratio") becomes "0". Although research on such simulators has been conducted, it cannot be said that it is highly versatile, and the method to be taken differs depending on the problem. Therefore, an advanced system is constructed for each different simulation, but it is not realistic to construct an advanced system for each of such different simulations.

Therefore, pointing of a plurality of cranes is allowed, and the simulation result is evaluated in consideration of both the pointing time ratio and the operating rate of the cranes. For example, suppose that the operating rate of crane # 1 is 50%, the operating rate of crane # 2 is 55%, and the pointing time ratio of cranes # 1 and # 2 is 10%. Considering that one of the cranes was stopped for 10% of the time, for example, crane # 1 was stopped west of the evacuation area, it can be considered that there was no contact. However, instead, the operating rate of crane # 1 is 60% (= 50% + 10%). Assuming that the upper limit of the operating rate of cranes # 1 and # 2 is 80%, the sum of the operating rates of cranes # 1 and # 2 is 105% (= 60% + 55%), which is the upper limit of the operating rate of cranes # 1 and # 2. The sum does not exceed 160% (= 80% + 80%). Therefore, it can be said that the cranes # 1 and # 2 can be operated and are established as physical distribution.

On the contrary, if "Σ {crane operating rate upper limit} <Σ {crane operating rate} + pointing time ratio" holds, the simulation result indicates that the crane load is too high to operate and the distribution is not established. It can be said that it shows.

In the above example, assuming that the pointing time ratio is 60%, the sum of the operating rates of cranes # 1 and # 2 is 165% (= 50% + 55% + 60%), and the operating rates of cranes # 1 and # 2 are operating. The sum of the upper limit of the rate exceeds 160% (= 80% + 80%). Therefore, it can be said that the cranes # 1 and # 2 cannot operate and are not established as physical distribution.

Thus, the derivation of the pointing time ratio is important in crane simulation. The present embodiment proposes a method for easily deriving the pointing time ratio from the simulation results.

The operating rate of cranes can be easily calculated based on the operating time of each crane in the simulator. Here, various definitions can be considered for the operating time of the crane, but it is preferable that only the time when the crane is stationary without a load is defined as the stopping time, and the other time is defined as the operating time. That is, the operating time can be derived by totaling the above-mentioned downtime and subtracting it from the simulation time.

The above applies not only to cranes but also to transport equipment in general, but the following will also be described by taking a crane as an example of transport equipment.

[Structure of logistics establishment judgment device]
FIG. 3 is a block diagram showing a functional configuration example of the physical distribution establishment determination device 10 according to the present embodiment. As shown in the figure, the physical distribution establishment determination device 10 includes a simulation result storage unit 11, a pointing setting information storage unit 12, a pointing evaluation information generation unit 13, a pointing evaluation information storage unit 14, and a pointing time ratio. It includes a derivation unit 15, an operability determination unit 16, and an operability output unit 17.

The simulation result storage unit 11 stores the simulation result by the simulator. Specifically, the simulation result of recording in which area of the yard each crane was located in the simulation for each time is stored. In the present embodiment, the simulation result is used as an example of the recorded information that records the area in which each transport facility of a plurality of transport facilities exists at each time of a plurality of times in the physical distribution simulation.

The pointing setting information storage unit 12 stores the pointing setting information in which information indicating the possibility of occurrence of pointing is set for the combination of areas in which each crane exists. Here, as information indicating the possibility of occurrence of pointing, for example, there is a function for deriving the presence / absence of occurrence of pointing, the probability of occurrence of pointing, and the probability of occurrence of pointing. In addition, although the function is described here as deriving the probability of occurrence of pointing, it may be used to derive the presence or absence of occurrence of pointing. In the present embodiment, as an example of setting information in which information indicating the possibility of interference of a plurality of transport equipments may occur when a plurality of transport equipments are present in a plurality of regions for a combination of a plurality of regions. , The pointing setting information is used. Further, as an example of the presence / absence of interference between a plurality of transport equipments, the presence / absence of a pointing occurrence is used, and as an example of the probability of occurrence of interference between a plurality of transport equipments, the pointing occurrence probability is used. As an example of a function for determining the presence / absence of interference of transport equipment or the probability of occurrence of interference of a plurality of transport equipment, a function for deriving the presence / absence of pointing occurrence or the probability of occurrence of pointing is used.

The pointing evaluation information generation unit 13 acquires the simulation result from the simulation result storage unit 11, and acquires the pointing setting information from the pointing setting information storage unit 12. Then, based on the simulation result and the matching setting information, the pointing evaluation information consisting of the pointing evaluation values for evaluating the possibility of the occurrence of the pointing at each time is generated. First, it is assumed that the pointing setting information stored in the pointing setting information storage unit 12 sets whether or not a pointing occurs. In this case, the pointing evaluation information generation unit 13 is based on the area in which each crane exists for each time stored in the simulation result storage unit 11 and the presence / absence of the pointing occurrence stored in the pointing setting information storage unit 12. Therefore, the pointing evaluation information including the presence or absence of the pointing at each time is generated. Further, it is assumed that the pointing setting information stored in the pointing setting information storage unit 12 sets the pointing occurrence probability or the function for deriving the matching occurrence probability. In this case, the pointing evaluation information generation unit 13 determines the area in which each crane exists for each time stored in the simulation result storage unit 11 and the pointing occurrence probability stored in the pointing setting information storage unit 12 or this. Based on the derived function, the pointing evaluation information consisting of the matching occurrence probability at each time is generated. In the present embodiment, the pointing evaluation value is used as an example of the evaluation value for evaluating the possibility of interference of a plurality of transport facilities at each time of a plurality of times. Further, as an example of a record information acquisition means for acquiring record information, a setting information acquisition means for acquiring setting information, and an evaluation value derivation means for deriving an evaluation value based on the record information and the setting information, a pointing evaluation information generation unit 13 is provided.

The pointing evaluation information storage unit 14 stores the pointing evaluation information derived by the pointing evaluation information generation unit 13.

The pointing time ratio deriving unit 15 refers to the pointing evaluation information stored in the pointing evaluation information storage unit 14, totals the pointing evaluation values at each time for the simulation time, and divides it by the simulation time. By doing so, the pointing time ratio is derived. In the present embodiment, the pointing time ratio is used as an example of the interference time ratio, which is the ratio of the time at which interference of a plurality of transport facilities occurs, and the total of the evaluation values for the distribution simulation time is used for the distribution simulation. The pointing time ratio deriving unit 15 is provided as an example of the interference time ratio deriving means for deriving the interference time ratio by dividing by time.

In the operability determination unit 16, the sum of the pointing time ratio derived by the pointing time ratio deriving unit 15 and the total of the crane operating rates for all the cranes is the total for all the cranes having the upper limit of the crane operating rate. The availability of the crane is determined by checking whether or not it exceeds. Specifically, if the sum of the pointing time ratio and the total of the crane operating rate exceeds the total of the upper limit of the crane operating rate, the operational availability output unit 17 is informed that the crane cannot be operated as information on the operational availability. Tell. Further, if the sum of the pointing time ratio and the total of the crane operating rate is equal to or less than the total of the upper limit of the crane operating rate, the operating availability output unit 17 is notified that the crane can be operated as information on whether or not the crane can be operated. In the present embodiment, it is determined whether or not the plurality of transport facilities can be operated by comparing the sum of the interference time ratio and the total of the operating rates of the plurality of transport facilities with the total of the upper limits of the operating rates of the plurality of transport facilities. As an example of the determination means, an operation availability determination unit 16 is provided.

The operability output unit 17 outputs the operability information transmitted by the operability determination unit 16 to, for example, the display mechanism 95. In the present embodiment, the operability output unit 17 is provided as an example of the output means for outputting the information indicating the operability.

[Concrete example"
First, the simulation result stored in the simulation result storage unit 11 will be described.

FIG. 4 is a diagram showing a specific example of the simulation result. As shown in the figure, the simulation result shows where the cranes # 1 and # 2 were located in the storage areas # 1 to # 4 and the conveyors # 1 to # 3 every minute.

Next, the pointing setting information stored in the pointing setting information storage unit 12 will be described.

FIG. 5 is a diagram showing a first specific example of the orientation setting information. As shown in the figure, the first specific example of the orientation setting information is in the cell corresponding to the location where the crane # 1 is present on the horizontal axis and the location where the crane # 2 is present on the vertical axis. The presence or absence of contact occurrence is set. In the figure, when "1" is set in the cell, it means that the occurrence of pointing is "Yes", and when "0" is set in the cell, the occurrence of pointing is "None". Indicates that there is. For example, consider the case where the crane # 1 exists in the storage area # 2. In this case, if the crane # 2 exists in the yard # 1, the conveyor # 1, and the yard # 2, all the cells are set to "1", so that the occurrence of pointing is "yes". If the crane # 2 exists on the conveyor # 2, the yard # 3, the conveyor # 3, and the yard # 4, all the cells are set to "0", so that the occurrence of pointing is "none".

FIG. 6 is a diagram showing a second specific example of the orientation setting information. As shown in the figure, the second specific example of the orientation setting information is in the cell corresponding to the location where the crane # 1 is present on the horizontal axis and the location where the crane # 2 is present on the vertical axis. The probability of occurrence of contact is set. In the figure, when "1" is set in the cell, it means that the probability of occurrence of pointing is 1, and when "0" is set in the cell, the probability of occurrence of pointing is 0. When x (0 <x <1) is set in the cell, it indicates that the probability of occurrence of pointing is x. For example, when the cranes # 1 and # 2 are present in the same storage area # 1, the probability of occurrence of pointing is "1". This means that cranes # 1 and # 2 cannot exist in the yard # 1 at the same time. Further, when the crane # 1 is in the storage place # 1 and the crane # 2 is in the conveyor # 1, the probability of occurrence of pointing is 0.3. This means that even if the crane # 2 is present on the conveyor # 1, the crane # 1 can be present at the yard # 1 at the same time as long as it is on the west side of the yard # 1.

7 (a) and 7 (b) are diagrams showing a third specific example of the pointing setting information.

As shown in FIG. 7 (a), the third specific example of the orientation setting information is the place where the crane # 1 shown on the horizontal axis exists and the place where the crane # 2 shown on the vertical axis exists. A function for deriving the probability of occurrence of pointing is set in the corresponding cell. The function is represented by fij (C1, C2). Here, i is the index of the location on the vertical axis, and j is the index of the location on the horizontal axis. Further, C1 is the type of coil carried by the crane # 1 at that time or most recently, and C2 is the type of coil carried by the crane # 2 at that time or most recently. That is, the position in the storage area may differ depending on the type of coil, which is reflected. The function fij (C1, C2) takes a value of 0 or more and 1 or less.

FIG. 7B shows a setting example of the function phi (C1, C2). In the figure, when "1" is set in the cell, it means that the value of the function fij (C1, C2) is "1", that is, the probability of occurrence of pointing is "1". When "0" is set in the cell, it indicates that the value of the function fij (C1, C2) is "0", that is, the probability of occurrence of pointing is "0". When the function fij (C1, C2) is set in the cell, it indicates that the value of the function fij (C1, C2) is x (0 <x <1), that is, the probability of occurrence of pointing is x.

Here, the function phi (C1, C2) will be described by taking as an example the function f53 (C1, C2) when the crane # 2 exists in the yard # 3 and the crane # 1 exists in the yard # 2.

FIG. 8 is a diagram showing the relationship between the crane and the storage place for explaining the function f53 (C1, C2). As shown in the figure, it is assumed that the storage areas # 2 and # 3 are configured so that their positions in the storage area differ depending on the weight of the coil. When the crane # 1 places the small coil in the yard # 2 and the crane # 2 puts the large coil in the yard # 3, there is a possibility that two cranes will face each other. In this case, the pointing probability is 0.6, and when this is expressed by an equation, "f53 (C1, C2) = 0.6". On the other hand, in the case of other combinations, no pointing occurs. That is, when the crane # 1 places the large coil in the yard # 2 and the crane # 2 puts the small coil in the yard # 3, the crane # 1 puts the large coil in the yard # 2 and the crane # 2 puts the large coil in the yard # 3. When the crane # 1 places the small coil in the storage area # 2, and the crane # 2 places the small coil in the storage area # 3, no pointing occurs. Expressing this in an equation, "f53 (C1, C2) = 0".

Here, the type of coil is used as a variable of the function, but this is not the case. Any attribute of the product being transported by the transport equipment may be used as a variable for the function.

Next, the pointing evaluation information stored in the pointing evaluation information storage unit 14 will be described.

FIG. 9 is a diagram showing a first specific example of the pointing evaluation information. This is a specific example of the pointing evaluation information when the first specific example of the pointing setting information of FIG. 5 is stored in the pointing setting information storage unit 12. As shown in the figure, the first specific example of the pointing evaluation information is the presence / absence of pointing occurrence set in FIG. 5 according to the combination of the areas where the crane exists every minute with respect to the simulation result of FIG. Is added.

FIG. 10 is a diagram showing a second specific example of the pointing evaluation information. This is because the second specific example of the pointing setting information of FIG. 6 or the third specific example of the pointing setting information of FIGS. 7A and 7B is stored in the pointing setting information storage unit 12. This is a specific example of the case matching evaluation information. As shown in the figure, the second specific example of the pointing evaluation information is the pointing occurrence probability set in FIG. 6 according to the combination of the regions where the crane exists every minute with respect to the simulation result of FIG. Or, the probability of occurrence of pointing derived by the function set in FIGS. 7 (a) and 7 (b) is added according to the combination of the regions where the crane exists.

[Operation of logistics establishment judgment device]
In the physical distribution establishment determination device 10, first, the pointing evaluation information generation unit 13 acquires the simulation result from the simulation result storage unit 11, and acquires the pointing setting information from the pointing setting information storage unit 12. Then, the pointing evaluation information is generated from the simulation result and the pointing setting information.

FIG. 11 is a flowchart showing an operation example when the pointing evaluation information generation unit 13 generates the pointing evaluation information. Prior to this operation, a line of the pointing evaluation value is added to the copy of the simulation result stored in the simulation result storage unit 11 and the line is left blank as the pointing evaluation information. It is assumed that it is stored in 14.

As shown in the figure, first, the pointing evaluation information generation unit 13 sets the time t to 1 (step 101). Then, the simulation time is substituted into N (step 102).

Next, the pointing evaluation information generation unit 13 executes the processes of steps 103 to 108 while increasing the time t by 1 up to N.

That is, the pointing evaluation information generation unit 13 refers to the simulation result, substitutes the region where the crane # 1 exists at the time t into the variable R1 (step 103), and assigns the region where the crane # 2 exists at the time t. Assign to the variable R2 (step 104). Then, with reference to the pointing setting information, the area assigned to the variable R1 in step 103 is set as the area on the horizontal axis, and the area assigned to the variable R2 in step 104 is set as the area on the vertical axis. Acquire information indicating the possibility of occurrence of a match (step 105).

Next, the pointing evaluation information generation unit 13 sets the evaluation value based on the information indicating the possibility of occurrence of the pointing acquired in step 105 in the pointing evaluation information prepared prior to the operation at time t. The pointing evaluation value is used (step 106). For example, when the information indicating the possibility of occurrence of pointing is the presence or absence of pointing, "0" or "1" indicating the occurrence of pointing can be set as it is in the time t column of the pointing evaluation information. Good. When the information indicating the possibility of occurrence of pointing is the probability of occurrence of pointing, the probability of occurrence of pointing may be set as it is in the time t column of the matching evaluation information. When the information indicating the possibility of occurrence of a match is a function for deriving the probability of occurrence of a match, the probability of occurrence of a match derived from the function may be set in the time t column of the match evaluation information.

After that, the pointing evaluation information generation unit 13 adds 1 to the time t (step 107) and determines whether or not the time t is N or less (step 108). Then, if it is determined that the time t is N or less, the process is returned to step 103, and if it is determined that the time t exceeds N, the process ends.

When the pointing evaluation information generation unit 13 generates the pointing evaluation information in this way, the pointing evaluation information generation unit 13 stores the generated pointing evaluation information in the pointing evaluation information storage unit 14.

Next, in the physical distribution establishment determination device 10, the pointing time ratio derivation unit 15 acquires the pointing evaluation information from the pointing evaluation information storage unit 14. Then, the pointing time ratio is derived from the pointing evaluation information.

FIG. 12 is a flowchart showing an operation example when the pointing time ratio deriving unit 15 derives the pointing time ratio.

As shown in the figure, first, the pointing time ratio deriving unit 15 sets the time t to 1 (step 151), and sets the variable Sum that stores the total value of the pointing time to 0 (step 152). Then, the simulation time is substituted into N (step 153).

Next, the pointing time ratio deriving unit 15 executes the processes of steps 154 to 157 while increasing the time t by 1 to N.

That is, the pointing time ratio deriving unit 15 refers to the pointing evaluation information and substitutes the pointing evaluation value corresponding to the time t into the variable Temp (step 154). Then, the pointing evaluation value assigned to the variable Temp is added to the variable Sum (step 155).

After that, the pointing time ratio deriving unit 15 adds 1 to the time t (step 156) and determines whether or not the time t is N or less (step 157). Then, if it is determined that the time t is N or less, the process returns to step 154, and if it is determined that the time t exceeds N, the process proceeds to step 158.

Finally, the pointing time ratio deriving unit 15 derives the pointing time ratio by dividing the value of the variable Sum at this point by N (step 158). For example, if the information indicating the possibility of occurrence of pointing is the presence or absence of pointing, and the pointing evaluation information in FIG. 9 is generated, the total of the presence or absence of pointing at each time is 5, which is the time. The value divided by 10 is 0.5. That is, 50% is the pointing time ratio. If the information indicating the possibility of occurrence of a match is the probability of occurrence of a match or a function for deriving the probability of the match, and the match evaluation information shown in FIG. 10 is generated, the total of the match probabilities at each time is 5. It becomes 3, and the value obtained by dividing it by the time 10 becomes 0.53. That is, 53% is the pointing time ratio.

When the pointing time ratio deriving unit 15 derives the pointing time ratio in this way, the pointing time ratio deriving unit 15 outputs the derived pointing time ratio to the operation availability determination unit 16.

Next, the operation availability determination unit 16 holds the sum of the pointing time ratio acquired from the pointing time ratio deriving unit 15 and the total operating rate of each crane held in advance for each crane in advance. Whether or not each crane can be operated is determined by comparing it with the total of the upper limit of the operating rate. Specifically, if the sum of the pointing time ratio and the total operating rate of each crane exceeds the total of the upper limit of the operating rate of each crane, it is determined that each crane cannot be operated. On the other hand, if the sum of the pointing time ratio and the total operating rate of each crane is equal to or less than the total of the upper limit of the operating rate of each crane, it is determined that each crane can be operated. Then, the operability determination unit 16 transmits the operability information to the operability output unit 17.

Finally, the operability output unit 17 outputs the operability information acquired from the operability determination unit 16 to, for example, the display mechanism 95.

[Hardware configuration of logistics establishment judgment device]
The physical distribution establishment determination device 10 in the present embodiment may be realized by, for example, a general-purpose computer. Therefore, assuming that the physical distribution establishment determination device 10 is realized by the computer 90, the hardware configuration of the computer 90 will be described.

FIG. 13 is a diagram showing a hardware configuration example of the computer 90.

As shown in the figure, the computer 90 is realized by, for example, a general-purpose personal computer (Personal Computer) or the like, and includes a CPU 91 as a calculation means, a main memory 92 as a storage means, and a magnetic disk device (HDD: Hard Disk Drive) 93. Be prepared. Here, the CPU 91 executes various programs such as an OS (Operating System) and application software, and realizes each of the above-mentioned processing units. The main memory 92 is a storage area for storing various programs and data used for executing the various programs, and the HDD 93 is input data (for example, order information) for various programs and output data (for example, schedule information) from various programs. ) Etc. are stored in this storage area.

Further, the computer 90 reads and writes data to and from a communication I / F 94 for communicating with the outside, a display mechanism 95 including a video memory and a display, an input device 96 such as a keyboard and a mouse, and a storage medium. It is provided with a driver 97 for performing the above.

[Modification example]
In the above, the present embodiment is regarded as a physical distribution establishment determination device 10 for determining whether or not the simulation result is established as physical distribution. In this case, the physical distribution establishment determination device 10 is an example of an operation availability information output device.

However, the present embodiment may be regarded as a pointing time ratio deriving device for deriving the pointing time ratio. Among the components of the distribution establishment determination device 10, the pointing time ratio deriving device includes a simulation result storage unit 11, a pointing setting information storage unit 12, a pointing evaluation information generation unit 13, a pointing evaluation information storage unit 14, and a pointing evaluation information storage unit 14. , The pointing time ratio deriving unit 15 is provided. Then, the pointing time ratio deriving unit 15 may output the derived pointing time ratio to, for example, the display mechanism 95. In this case, the pointing time ratio deriving device is an example of an interference time ratio output device, and the pointing time ratio deriving unit 15 is an example of an output means for outputting the interference time ratio. The hardware configuration example of the computer that realizes the pointing time ratio derivation device is also the same as that shown in FIG.

[Effect of this embodiment]
As described above, in the present embodiment, the simulation result of recording the area where each crane existed at each time and the case where a plurality of cranes exist in a plurality of areas for a combination of a plurality of areas are present. Based on the pointing setting information that sets the information indicating the possibility of occurrence of the crane pointing, the evaluation value that evaluates the possibility of the occurrence of the pointing of multiple cranes at each time is derived and derived. By dividing the total of the evaluation values for the simulation time by the simulation time, the pointing time ratios of multiple cranes are derived. This makes it possible to derive the pointing time ratio of multiple cranes from the simulation results that record the area where each crane exists at each time.

Further, in the present embodiment, the sum of the derived pointing time ratio and the total of the operating rates of the plurality of cranes is compared with the total of the upper limits of the operating rates of the plurality of cranes. Changed to judge whether it can be operated. This makes it possible to determine whether or not the simulation result is valid as a physical distribution.

10 ... Logistics establishment determination device, 11 ... Simulation result storage unit, 12 ... Pointing setting information storage unit, 13 ... Pointing evaluation information generation unit, 14 ... Pointing evaluation information storage unit, 15 ... Pointing time ratio derivation unit, 16 ... Operation availability judgment unit, 17 ... Operation availability output unit

Claims (10)

A record information acquisition means for acquiring record information that records an area in which each transfer facility of a plurality of transfer facilities exists at each time of a plurality of times in a physical distribution simulation.
Acquisition of setting information that sets information indicating the possibility of interference of the plurality of transport equipments when the plurality of transport equipments exist in the plurality of regions for a combination of a plurality of regions. Means and
Based on the recorded information acquired by the record information acquisition means and the setting information acquired by the setting information acquisition means, interference of the plurality of transport facilities may occur at each time of the plurality of times. Evaluation value derivation means for deriving the evaluation value that evaluated the sex, and
Interference time, which is the ratio of the time during which interference between the plurality of transport facilities occurs, by dividing the total of the evaluation values derived by the evaluation value deriving means for the time of the physical distribution simulation by the time of the physical distribution simulation. Interference time ratio derivation means for deriving the ratio,
An interference time ratio output device including an output means for outputting the interference time ratio derived by the interference time ratio deriving means. The setting information is information in which the presence or absence of interference of the plurality of transport equipments is set as information indicating the possibility of interference of the plurality of transport equipments with respect to the combination of the plurality of regions. The interference time ratio output device according to claim 1. The setting information is information in which the probability of interference of the plurality of transport facilities is set as information indicating the possibility of interference of the plurality of transport facilities for the combination of the plurality of regions. The interference time ratio output device according to claim 1. The setting information is information indicating the possibility of interference of the plurality of transport facilities with respect to the combination of the plurality of regions, and is the presence or absence of interference of the plurality of transport facilities or the presence or absence of interference of the plurality of transport facilities. The interference time ratio output device according to claim 1, wherein the information includes a function for obtaining the probability of occurrence of interference. The interference time ratio output device according to claim 4, wherein the function uses the attribute of the product transported by each of the plurality of transport facilities as a variable. A record information acquisition means for acquiring record information that records an area in which each transfer facility of a plurality of transfer facilities exists at each time of a plurality of times in a physical distribution simulation.
Acquisition of setting information that sets information indicating the possibility of interference of the plurality of transport equipments when the plurality of transport equipments exist in the plurality of regions for a combination of a plurality of regions. Means and
Based on the recorded information acquired by the record information acquisition means and the setting information acquired by the setting information acquisition means, interference of the plurality of transport facilities may occur at each time of the plurality of times. Evaluation value derivation means for deriving the evaluation value that evaluated the sex, and
Interference time, which is the ratio of the time during which interference between the plurality of transport facilities occurs, by dividing the total of the evaluation values derived by the evaluation value deriving means for the time of the physical distribution simulation by the time of the physical distribution simulation. Interference time ratio derivation means for deriving the ratio,
By comparing the sum of the interference time ratio derived by the interference time ratio deriving means and the total operating rates of the plurality of transport facilities with the total of the upper limits of the operating rates of the plurality of transport facilities, the said. Judgment means for determining whether or not multiple transport facilities can be operated,
An operability information output device including an output means for outputting information indicating the operability determined by the determination means. A step in which a computer's record information acquisition means acquires record information that records an area in which each transfer facility of a plurality of transfer facilities exists at each time of a plurality of times in a physical distribution simulation.
The computer setting information acquisition means sets information indicating the possibility of interference of the plurality of transport equipments when the plurality of transport equipments are present in the plurality of regions for a combination of the plurality of regions. Steps to get setting information and
Based on the acquired recorded information and the acquired setting information, the evaluation value deriving means of the computer evaluated the possibility of interference of the plurality of transport facilities occurring at each time of the plurality of times. Steps to derive the evaluation value and
The interference time ratio derivation means of the computer divides the sum of the derived evaluation values for the time of the physical distribution simulation by the time of the physical distribution simulation, so that the ratio of the time when the interference of the plurality of transport facilities occurs is The step of deriving a certain interference time ratio,
A method for outputting an interference time ratio, wherein the output means of the computer includes a step of outputting the derived interference time ratio. A step in which a computer's record information acquisition means acquires record information that records an area in which each transfer facility of a plurality of transfer facilities exists at each time of a plurality of times in a physical distribution simulation.
The computer setting information acquisition means sets information indicating the possibility of interference of the plurality of transport equipments when the plurality of transport equipments are present in the plurality of regions for a combination of the plurality of regions. Steps to get setting information and
Based on the acquired recorded information and the acquired setting information, the evaluation value deriving means of the computer evaluated the possibility of interference of the plurality of transport facilities occurring at each time of the plurality of times. Steps to derive the evaluation value and
The interference time ratio derivation means of the computer divides the sum of the derived evaluation values for the time of the physical distribution simulation by the time of the physical distribution simulation, so that the ratio of the time when the interference of the plurality of transport facilities occurs is The step of deriving a certain interference time ratio,
The determination means of the computer compares the sum of the derived interference time ratio and the total of the operating rates of the plurality of transport facilities with the total of the upper limits of the operating rates of the plurality of transport facilities. Steps to determine the availability of the transport equipment in
A method of outputting information on whether or not an operation is possible, wherein the output means of the computer includes a step of outputting the determined information indicating whether or not the operation is possible. On the computer
In the logistics simulation, the function to acquire the recorded information that records the area where each transport facility of multiple transport facilities existed at each time of multiple times, and
A function to acquire setting information in which information indicating the possibility of interference of the plurality of transport equipments may occur when the plurality of transport equipments are present in the plurality of regions for a combination of a plurality of regions.
Based on the acquired record information and the acquired setting information, a function of deriving an evaluation value for evaluating the possibility of interference of the plurality of transport facilities at each time of the plurality of times, and a function of deriving the evaluation value.
By dividing the total of the derived evaluation values for the time of the physical distribution simulation by the time of the physical distribution simulation, a function of deriving the interference time ratio, which is the ratio of the time when the interference of the plurality of transport facilities occurs. Program to realize. On the computer
By comparing the sum of the derived interference time ratio and the total operating rate of the plurality of transport facilities with the total of the upper limits of the operating rates of the plurality of transport facilities, whether or not the plurality of transport facilities can be operated is possible. And the function to judge
The program according to claim 9, further realizing a function of outputting the determined information indicating whether or not the operation is possible.

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