TW202034203A - Simulation device, simulation program, and simulation method - Google Patents

Abstract

In the present invention, a mesh calculation unit (120) creates, on the basis of a mesh coarseness that has been input, a piping model of a mesh piping circuit into which a fluid flows, which includes a plurality of valves that can be opened/closed by control thereof and a plurality of pipes, and in which the plurality of pipes are arranged in a mesh shape by connecting the valves to each other. The mesh calculation unit (120) creates a factory model, which is a model of a simulation subject, by combining a piping model and a factory layout model indicating a model of a factory which will use the mesh piping circuit. A construction cost calculation unit (130) calculates the construction cost of the factory indicated by the factory model. A production cost calculation unit (140) simulates the factory model and calculates the running cost for running the factory using the mesh piping circuit. A mesh effect evaluation unit (170) evaluates the effect of the mesh piping circuit on the basis of the construction cost and the running cost.

Description

Simulation device, simulation program product and simulation method

This invention relates to a simulation device for supplying fluid like compressed air with a pipe.

In the past, the technology has been based on pressure data and model-based simulations to calculate the output of the compressed air leakage location candidate and the leakage amount in the leakage location using Metaheuristic optimization method (e.g. Patent Document 1) . However, in the past, a device model in which the input/output relationship of the constituent devices is represented by a plurality of node connections is branched, and a simulator is used to diagnose all leak-place combinations. Therefore, although the compressed air supply path is changed, the loss avoidance effect dependent on the variable supply path cannot be evaluated. [Advanced Technical Document] [Patent Document]

[Patent Document 1] Japanese Patent Publication No. 2009-259279

[The problem to be solved by the invention]

In the present invention, in order to perform JIT supply of compressed air to suppress loss in a factory, a controllable on-off valve is used to connect piping. On the premise of the supply path of meshed compressed air, it uses simulation to evaluate in advance a mesh type supply path that can change the supply path. The best shape is for the purpose of providing a determined simulation device. [Means to solve the problem]

The simulation device of this invention includes: The mesh calculation unit has plural valves including plural solenoid valves that can be opened and closed according to control, and plural piping. Since the plural piping connection valves of the plural piping are arranged between the plural piping connection valves, the plural piping is arranged in a mesh shape, and the fluid is produced according to the input mesh thickness The piping model of the inflowing mesh piping circuit model, by combining the above-mentioned piping model created with the factory layout model representing the factory model using the above mesh piping circuit, to create a factory model including the above mesh piping circuit and a model of the simulation target ； The construction cost calculation department calculates the construction cost of the aforementioned factory represented by the aforementioned factory model; The production cost calculation department, by simulating the above-mentioned factory model, the above-mentioned factory uses the above-mentioned mesh piping circuit to calculate the operating cost of operation; and The mesh effect evaluation department evaluates the effect of the above mesh piping circuit based on the above construction cost and the above operation cost. [Invention Effect]

According to the present invention, it is possible to provide a simulation device that evaluates and determines the optimal shape of the mesh-type supply path in which the supply path can be changed in advance.

Hereinafter, the embodiment of the present invention will be described with reference to drawings. In addition, in each figure, the same or equivalent parts are given the same symbols. In the description of the embodiment, the description of the same or equivalent parts will be omitted or simplified as appropriate.

(1) Below, sometimes the production equipment is marked as equipment. Production equipment is a fluid utilization equipment. (2) Below, use compressed air as the fluid. However, the fluid is not limited to compressed air, and inert gases other than compressed air or gases like carbon dioxide may also be used. In addition, the fluid may be liquid. In addition, the fluid may be powder. (3) Below, the piping cost database 133, the piping database 151b, and the equipment database 152b are available, but these are marked as piping cost DB133, piping DB151b, and equipment DB152b. (4) In the following, when it is described as a valve, unless otherwise specified, it is a solenoid valve that has multiple on-off valves like 1 or 4 and can control the on-off of these on-off valves. The solenoid valve is an on-off valve.

Embodiment 1 With reference to Figs. 1 to 7, the simulation device 101 of the first embodiment will be described.

Description of composition Fig. 1 shows a fluid supply system 1000 of a factory 700 including a simulation object. In Figure 1, the solid line shows the compressed air flow, and the dotted line shows the data flow. The fluid supply system 1000 includes a production execution system 230, a compressor control device 240, a valve control unit 250, and a factory 700. The factory 700 has a plurality of compressors 710, valves 720, receiving tanks 730, valves 740, and mesh piping circuits 800.

＜Mesh piping circuit 800＞ The mesh piping circuit 800 has plural valves including plural valves 801 that can be opened and closed according to control, and plural pipes 802. The plural valves of the mesh piping circuit 800 may all be solenoid valves, and one or plural manual valves may be included. In the mesh piping circuit 800, since the piping 802 of the plural piping 802 is connected between the valves 801, the plural piping 802 are arranged in a mesh shape, and fluid flows in. The plural use devices 810, 810a, and 810b using fluid are connected to different pipes 802 among the plural pipes 802, respectively. The valve control unit 250 controls a plurality of valves 801 included in the mesh piping circuit 800 to form a supply path.

＜Object of simulation＞ The simulation target of the simulation device 101 is the factory 700 in Fig. 1. The model of the factory 700 to be the simulation target is hereinafter referred to as the factory model.

Fig. 2 is a diagram illustrating the supply path in the mesh piping circuit 800 included in the fluid supply system 1000. The upper left diagram of FIG. 2 is a loop type piping of a comparative example of the mesh piping circuit 800. In loop-type piping, only device C is operating (ON) from device A to device D. Even when devices A, B, and D are stopped (OFF), compressed air must be supplied to all areas of loop-type piping. Therefore, since compressed air flows into the paths of the devices A, B, and D that are stopped, this part of the compressed air leaks. On the other hand, the mesh piping circuit 800 of Embodiment 1 is as follows. The lower left diagram of FIG. 2 schematically shows the mesh piping circuit 800. The valve V at 16 of the mesh piping circuit 800 is connected with a piping 802. The bottom left of Figure 2 shows that equipment A to equipment D are all stopped. The upper right diagram of Figure 2 shows the state of equipment C starting to operate. In the upper right diagram of Figure 2, the valve V2 direction of the valve V1 is regarded as open, the valve V3 direction of the valve V2 is open, and the valve V4 direction of the valve V3 is open, forming a supply path indicated by a solid line. At this time, for the loop-type piping in the upper left of Figure 2, because compressed air is not supplied to the portion shown by the broken line, there is little leakage of compressed air into the loop-type piping. The lower right diagram of Figure 2 shows the status of operating equipment B, C, and D. In this figure, in addition to the upper right state, because there are also valve V4 with the valve V5 direction open, valve V5 with the valve V6 direction open, valve V5 with the valve V10 direction open, and valve V6 with the valve V7 direction open, The valve V8 direction of V7 is open, and the valve V9 direction of valve V8 is open, forming a compressed air supply path shown by a solid line. The lower right diagram of Figure 2 does not use the dashed wiring duct in the mesh piping circuit 800. Therefore, there is little leakage of compressed air into the loop-type wiring duct.

The simulation device 101 simulates a factory 700 including the mesh piping circuit 800 in FIG. 2. The simulation device 101 simulates the construction cost and operating cost of the factory 700, and can evaluate the overall cost of each factory model.

＜Simulation device 101＞ Fig. 3 is a block diagram showing the structure of the simulation device 101. The simulation device 101 includes a model management unit 110, a mesh calculation unit 120, a construction cost calculation unit 130, a production cost calculation unit 140, an operating cost calculation unit 150, a reduction effect calculation unit 160, and a mesh effect evaluation unit 170.

＜Model Management Department 110＞ The model management unit 110 will be described below. The model management unit 110 includes a factory model management unit 111, a cost model production unit 112, a piping model production unit 113, a factory layout model production unit 114, and an equipment model production unit 115.

＜Factory Model Management Department 111＞ The factory model management unit 111 manages a factory model including mesh-type piping. The factory model, as shown in Figure 4 described later, is a model that expresses the mesh-type piping, equipment, etc. of the factory. The factory model is a material that models the layout and connection form of mesh-type piping, equipment, etc. of the factory determined by the mesh calculation unit 120 described later. Depending on the thickness of the mesh, multiple "factory models" exist. The factory model is used for mesh effect evaluation. The factory model is different from the factory configuration model. The factory configuration model is a layout model of production equipment and related equipment on the factory floor. On the other hand, the plant model is a simulation target model such as a plant layout model and a piping model of the operation combination, as shown in Fig. 4 described later. The factory model is not only the configuration of production equipment, but also the configuration of piping and valves.

＜Cost Model Making Department 112＞ The cost model creation unit 112 creates a compressed air cost model. The so-called compressed air cost model is a data representing the cost of compressed air in a model. The so-called compressed air cost model is a model used to convert compressed air consumption into cost. The compressed air cost model is used to calculate the cost based on the compressor power required to supply compressed air.

＜Piping Model Making Department 113＞ The piping model making part 113 creates a piping model. The piping model expresses the data of the mesh piping supplying compressed air in a model. The piping model is used for piping network design. The piping model is based on general CAD (computer-aided design), etc., as information required for the piping design of the equipment related to the consumption and supply of compressed air. The material, shape (section, thickness, etc.), junction circle, on-off valve, Modeling of pressure gauges.

＜Factory layout model making department 114＞ The factory configuration model making section 114 makes a factory configuration model. The factory configuration model is a model that expresses the information of the factory configuration. The factory configuration model is used in the design of the piping network. The factory layout model is a model of the factory floor that connects the production equipment and related equipment to the compressed air piping with general CAD.

＜Equipment Model Making Department 115＞ The equipment model making part 115 makes equipment models. The equipment model is a model that expresses the compressed air consumption of the equipment. The equipment model is used for piping network design and production simulation. The equipment model is to model the compressed air consumption according to the operation mode of the equipment (stop, run, pause, etc.). In this action mode, it is determined by the production input plan or production method. The arrangement and wiring of piping that meet the specifications of compressed air consumption is necessary.

＜Mesh calculation department 120＞ The mesh calculation unit 120 includes a mesh thickness adjustment unit 121 and a mesh wiring unit 122. The mesh calculation unit 120 creates a piping model. The piping model is a model having a plurality of valves including a plurality of solenoid valves that can be opened and closed by control, and a plurality of piping. Since the piping connection valves of the plurality of pipings are connected to each other, the plurality of pipings are arranged in a mesh pattern and the fluid flows in a mesh piping circuit. The mesh calculation unit 120 creates a piping model based on the input mesh thickness. The mesh calculation unit 120 creates a factory model by combining the created piping model and a factory layout model representing a factory model using mesh piping circuits. The so-called factory model refers to the factory model including the piping circuit of the mesh and is a model of the simulation object.

＜Mesh adjustment section 121＞ The mesh thickness adjustment unit 121 allocates settings in order to be able to instruct the thickness and granularity of the mesh to be an arbitrary thickness or to automatically set the granularity with a plurality of widths. The mesh thickness adjustment unit 121 assigns the granularity of the mesh from "large thickness" with low introduction cost and low effect to the opposite "small thickness". Between the branches (between the piping and the piping), it may be just a joining material, or it may be an on-off valve. The mesh thickness adjustment unit 121 uses the information of the factory configuration model, equipment model, piping model, and mesh thickness information to give instructions to the mesh wiring unit 122.

＜Mesh wiring part 122＞ The mesh wiring part 122, automatic wiring mesh piping. The mesh wiring part 122 is set according to the thickness of the mesh, and the mesh piping is automatically wired. The switch valve setting information is received from the mesh thickness adjustment unit 121. Figure 4 shows four mesh piping circuits wired by the mesh wiring section 122. (1) In the upper left of Figure 4, when the mesh thickness is zero, the mesh wiring part 122 instructs to form a loop-type piping circuit. (2) At the bottom left of Figure 4, when the mesh thickness is "thick", the mesh wiring section 122 indicates the piping circuit formed with a 3*3 mesh. (3) On the upper right of Figure 4, when the mesh thickness is "medium", the mesh wiring section 122 indicates the piping circuit formed with a 4*4 mesh. (4) At the bottom right of Figure 4, when the mesh thickness is "fine", the mesh wiring section 122 indicates the piping circuit formed with a 6*6 mesh. The intersection between the pipes is called a node. In several nodes, place controllable valves. The mesh wiring section 122 creates a plural "factory model" with the thickness of the mesh (the number of valves arranged), the installation location of the valve (wiring route), and the presence or absence of the valve as parameters.

＜Construction cost calculation department 130＞ The construction cost calculation unit 130 includes a baseline evaluation unit 131, a piping cost calculation unit 132, and a piping cost DB133. The construction cost calculation unit 130 calculates the factory construction cost indicated by the factory model.

＜Baseline Evaluation Department 131＞ The baseline evaluation unit 131 holds the value of the piping construction cost for the baseline described later. The baseline evaluation unit 131 compares the piping construction cost corresponding to one or plural "factory model (described later)" according to the granularity of the mesh and the piping construction cost of the factory model used as the baseline.

＜Piping cost calculation section 132＞ The piping cost calculation unit 132 calculates the cost required for piping construction. The piping cost calculation unit 132 uses the piping cost DB133 to calculate each construction cost of the plural "factory models" held by the factory model management unit 111.

＜Piping cost DB133＞ The piping cost DB133 is a database with cost data required for piping construction. The piping cost DB133 is a cost database corresponding to conditions such as the material and thickness of the piping, joints, and on-off valve settings. The piping cost DB133 has data such as the piping cost per unit length and the cost per joint.

＜Production cost calculation department 140＞ The production cost calculation unit 140 includes a plan input unit 141, a manufacturing method input unit 142, and a simulation execution unit 143. The production cost calculation unit 140 calculates the operating cost of the factory using the mesh piping circuit to operate by simulating the factory model.

＜Plan input unit 141＞ In the plan input unit 141, a hypothetical typical production input plan is input. Production input plan, in order to simulate the assumed production plan in the factory, set up a typical production input plan. For example, an example of 500 cars a day.

<Production method input unit 142> The manufacturing method input unit 142 inputs the manufacturing method of each device. Based on the equipment level, set hypothetical typical production methods. For example, the body is washed, and compressed air is sprayed at 0.5 cubic meters per second for 1 minute and then waiting for 5 minutes. Figure 5 shows the production input plan and manufacturing method input to the production cost calculation unit 140. The top table in Figure 5 shows the production input plan, and the bottom table in Figure 5 shows the manufacturing method.

＜Simulation Execution Section 143＞ The simulation execution unit 143 simulates production and calculates the cost. The simulation execution unit 143 simulates production, and passes the simulation result to the operating cost calculation unit 150 (described later). The simulation execution unit 143 receives the cost calculated by the operation cost calculation unit 150 from the operation cost calculation unit 150, and calculates the compressed air cost for production simulation consumption. In the simulation execution unit 143, each factory model, production plan, manufacturing method, and "compressed air consumption of equipment and piping" are input. The simulation execution unit 143 calculates and outputs the cost required for production based on these input values. The simulation execution unit 143 provides information required by the reduction effect calculation unit 160 by outputting solutions corresponding to various input values.

＜Operation cost calculation unit 150＞ The operating cost calculation unit 150 includes a piping evaluation unit 151, an equipment evaluation unit 152, and a cost conversion unit 153. The operating cost calculation unit 150 calculates the operating cost corresponding to the compressed air consumed in the production simulated by the simulation execution unit 143.

＜Piping Evaluation Department 151＞ The piping evaluation unit 151 includes a piping calculation unit 151a and a piping DB151b. The piping evaluation unit 151 converts the compressed air consumption of the piping to the cost. The piping evaluation unit 151 calculates the amount of compressed air consumed by the piping (volume change and leakage due to valve opening and closing) and compressor power based on the production simulated by the simulation execution unit 143, and uses the cost conversion unit 153 to calculate the compressed air cost.

＜Equipment Evaluation Department 152＞ The equipment evaluation unit 152 converts the power and compressed air consumption of the equipment into costs. The equipment evaluation unit 152 calculates the power and compressed air consumption of the equipment based on the production simulated by the simulation execution unit 143, and uses the cost conversion unit 153 to calculate the cost.

The device evaluation unit 152 includes a device calculation unit 152a and a device DB 152b.

＜Cost Conversion Department 153＞ The cost conversion unit 153 converts compressed air consumption into cost. The cost conversion unit 153 converts the compressed air consumption into a cost based on the information from the cost model creation unit 112.

<Reduction effect calculation unit 160> The reduction effect calculation unit 160 includes a mesh type evaluation unit 161 and a baseline evaluation unit 162. The reduction effect calculation unit 160, as described later, calculates the loss reduction effect based on the comparison between the baseline and the operating cost of each mesh type.

＜Mesh Type Evaluation Department 161＞ The mesh type evaluation section 161 evaluates the loss reduction effect with respect to plural mesh types. The mesh type evaluation unit 161 compares the cost obtained by the production simulation generated by the simulation execution unit 143 with the baseline calculated by the baseline evaluation unit 162 to calculate the loss reduction effect for the plural "factory model" of the distribution mesh thickness.

＜Baseline Evaluation Department 162＞ The baseline evaluation unit 162 sets the baseline value of the evaluation criterion. The so-called baseline is the benchmark for cost comparison. The principle is to assume that the conventional piping, that is, the piping, is a loop piping with a zero mesh size (the factory configuration model is the same as other factory models). However, it may be arbitrarily changed based on the user's design (for example, using the mesh thickness "medium" as the baseline). Specifically, the baseline evaluation unit 162 sets the baseline value of the evaluation criterion by receiving the setting of not introducing mesh-type piping from the model management unit 110 and the production cost calculation unit 140.

＜Mesh Effect Evaluation Department 170＞ The mesh effect evaluation unit 170 evaluates the effect of the mesh piping circuit based on the construction cost and operating cost. The net effect evaluation unit 170 evaluates the effect of net expenses on net items. The mesh effect evaluation unit 170 evaluates the effect of the mesh cost on the basis of the introduction cost of the construction cost calculation unit 130 according to the plural "factory model" and the reduction cost of the reduction effect calculation unit 160. The evaluation by the mesh effect evaluation unit 170 is based on the calculation of the optimal solution for the input of the mesh thickness, the calculation of ROI (return on investment) for each plant model, or the optimization of the investment amount.

Description of action Fig. 6 is a program diagram of the simulation device 101. Figure 7 is a flowchart that complements Figure 6. In Figure 6, write the step number in Figure 7. Hereinafter, the operation of the simulation device 101 will be described with reference to FIGS. 6 and 7. The operation of the simulation device 101 corresponds to a simulation method. The operation of the simulation device 101 corresponds to the processing of the simulation program.

<A: Step S(1)> Step S(1) is a step of initial setting. Step S(1) consists of step S(2), step S(3), step S(4) and step S(5). In step S(1), the user, as a pre-preparation, creates a model, database, and simulated production plan and manufacturing method. In step S(2), the user uses the model management unit 110 to create each model information. The cost model creation unit 112 creates a compressed air cost model. The piping model making part 113 creates a piping model. The factory configuration model making section 114 makes a factory configuration model. The equipment model making part 115 makes equipment models. In step S(3), the user creates the piping DB151b and the equipment DB152b. In step S(4), the user creates the piping cost DB133 for constructing the cost calculation unit 130. In step S(5), the user inputs the production plan to the plan input unit 141 of the production cost calculation unit 140, and inputs the manufacturing method to the manufacturing method input unit 142.

<B: Step S(6)> Step S(6) is the step of making a factory model. Step S(6) consists of step S(7) and step S(8). In step S(6), based on the "user's input" and the layout and wiring of the multiple coarse and fine meshes, a mesh-type piping factory model is created. The user inputs the thickness of the mesh to the mesh thickness adjustment part 121. For the input form of the mesh thickness, the user can also select the thickness of coarse, medium, and fine, and the user can also input the value of the direct parameter.

In step S(7), based on user input, the mesh thickness adjustment unit 121 determines the thickness parameter. The mesh wiring section 122 implements wiring of mesh piping based on the thickness parameter. On this occasion, restrictions can be set (according to the input budget and the characteristics of the production line, rough targets or detailed targets). In addition, the mesh wiring section 122 generates a baseline of the factory model for comparison based on the factory configuration model and the piping circuit. In step S(8), the factory model management unit 111 manages the result of step S(7), that is, the "factory model" of the factory layout model plus the mesh piping circuit model.

<C: Step S(9)> Step S(9) is the calculation step of the construction cost of the plant model. Step S(9) consists of step S(10). In step S(9), each construction cost of the "factory model" and the baseline generated in step (7) is calculated. In step S(10), the construction cost calculation unit 130 calculates the construction cost corresponding to the "factory model" possessed by the factory model management unit 111. The baseline evaluation unit 131 refers to the piping cost DB133, and calculates the baseline construction cost of the comparison plant model managed by the plant model management unit 111. The piping cost calculation unit 132 refers to the piping cost DB 133 to calculate the construction cost of the plant model managed by the plant model management unit 111.

<D: Step S(11)> Step S(11) is the calculation step of the operating cost of the plant model. Step S(11) consists of step S(12), step S(13) and step S(14). In step S(11), from step S(12) to step S(14), the operating cost when implementing the hypothetical production plan corresponding to the "factory model" is calculated. In step S(12), the simulation execution unit 143 uses the "factory model" possessed by the factory model management unit 111, the production plan possessed by the plan input unit 141, and the manufacturing method possessed by the manufacturing method input unit 142 to simulate each device, The operation of compressed air piping network (controlled by on-off valve supply). In step S(13), the operating cost calculation unit 150 obtains the simulation result of step S(12), calculates the power consumption cost of the equipment and calculates the compressed air cost. Specifically, the piping evaluation unit 151 and the equipment evaluation unit 152 obtain simulation results from the simulation execution unit 143. The piping evaluation unit 151 refers to the piping DB151b, and calculates the operating cost (hereinafter, piping operating cost) related to the compressed air consumption of the piping based on the compressed air consumption of the piping in the simulation result and the compressor power consumption of the simulation result. The equipment evaluation unit 152 refers to the equipment DB 152b, and calculates the equipment operating cost (hereinafter, equipment operating cost) based on the power consumed by the equipment in the simulation result and the compressed air used by the equipment in the simulation result. In step S (14), the simulation execution unit 143 obtains the piping operation cost calculated by the piping evaluation unit 151 from the piping evaluation unit 151, and obtains the equipment operation cost calculated by the equipment evaluation unit 152 from the equipment evaluation unit 152. The simulation execution unit 143 calculates the operating cost at the time of production corresponding to the "factory model".

<E: Step S(15)> Step S(15) is the step of confirming the effect of cost. Step S(15) consists of step S(16), step S(17) and step S(18). In step S(15), the loss reduction effect of the compressed air supply of the mesh-type pipe is evaluated. In step S(16), based on the data for the "factory model" of the baseline implemented in step S(7), the baseline evaluation unit 162 holds the operating cost calculated by the simulation execution unit 143 in step S(14). In step S(17), the mesh type evaluation unit 161 obtains the operating cost corresponding to the "factory model" from the simulation execution unit 143. In addition, the mesh type evaluation unit 161 obtains the baseline operating cost maintained by the baseline evaluation unit 162 in step S(16) from the baseline evaluation unit 162. The mesh type evaluation unit 161 compares the operating cost of the plant model acquired from the simulation execution unit 143 with the baseline operating cost acquired from the baseline evaluation unit 162. In step S(18), the mesh effect evaluation unit 170 compares the result of step S(17) with the result of step S(10) (construction cost of the factory model) of "the operating cost of the factory model and the baseline operating cost" , Calculate the effect of cost. As an example of the cost-effectiveness, the mesh effect evaluation unit 170, for example, invests 2 million yen in construction costs, and calculates an evaluation that can be recovered in 2 years because of the estimated operating cost reduction effect of 1 million yen/year. The user changes the input (the thickness of the mesh) to get a complex result. The mesh effect evaluation unit 170 displays a plurality of results (the effect of each input calculated by the mesh effect evaluation unit 170) on the display device 300 of the fifth embodiment described later. The user uses the result corresponding to one mesh thickness from the plural results displayed on the display device 300 (the evaluation result calculated by the mesh effect evaluation unit 170).

As another example use case of the simulation of the simulation device 101, there are the following use examples. The production cost calculation unit 140 calculates the operating cost for each production plan of the plural production plans based on the simulation of the factory model created by the mesh calculation unit 120. The mesh effect evaluation unit 170 evaluates each operating cost and extracts the production plan with the best operating cost. The following is a concrete example of simulation that can be used after compressed air piping construction. (1) After the mesh-type piping is constructed, use the simulation of the simulation device 101 to evaluate the operating cost of the multiple production plan. Based on this evaluation, the most cost-effective production plan can be prepared. (2) When there are multiple production input plans to accept orders, use the simulation device 101. (2.1) One "factory model" maintained by the mesh-type piping factory model management department. (2.2) Input multiple plans to the input section of the production input plan. (2.3) Using (2.1) and (2.2) as input, implement step S(12)~step S(14). Here, expenses such as labor costs and intermediate inventory storage costs are also treated as part of the equipment operating cost (set by equipment model). (2.4) Choose the most favorable cost plan.

Effect of Embodiment 1 (1) In the past, compressed air leakage loss in the supply path of the circuit shape was allowed. However, the simulation device 101 preliminarily simulates the construction cost dependent on the mesh shape and the loss avoidance effect dependent on the mesh shape based on the equipment and piping model based on the use of the mesh piping circuit connected with the controllable valve. Therefore, the simulation device 101 can determine the optimal mesh shape to be adopted as the mesh piping circuit. (2) In addition, the simulation device 101 can simulate the JIT (Just in Time) supply effect of compressed air according to the production plan. Therefore, it is possible to realize the "pre-quantitative evaluation of the effect of reducing the amount of compressed air loss dependent on the production plan", which was difficult in the past quantitative evaluation. That is, when the production plan is drafted, as the entire factory system such as "productivity and power consumption" and "productivity and compressed air consumption", information for optimal use can be obtained.

Embodiment 2 With reference to Fig. 8, the simulation device 102 of the second embodiment will be described. FIG. 8 is a flowchart illustrating the operation of the simulation device 102. Fig. 8 corresponds to Fig. 7, and the configuration of the simulation device 102 is the same as that of the simulation device 101 in Fig. 3.

The simulation device 102 calculates the recommended best solution through the mesh effect evaluation unit 170 for the plural "factory model" corresponding to the plural mesh thicknesses (plan 1, plan 2,...) automatically generated by the mesh calculation unit 120 and according to the initial investment Ability to ROI, the system automatically recommends (prompts) the best solution with this simulation. In addition, in the first embodiment described above, a human judges the best solution. For example, in Project 1 (the mesh size is No. 2 in 10 stages), 2 million yen is invested, because the reduction effect is 1 million yen/year, and the mesh effect evaluation unit 170 calculates that it can be recovered in 2 years.

Fig. 8 is a flowchart showing the operation of the simulation device 102. Referring to Fig. 8, the operation of the simulation device 102 will be described. The operation of the simulation device 102 corresponds to a simulation method. The operation of the simulation device 102 corresponds to the processing of the simulation program.

Fig. 8 is the same as Fig. 7 except that steps S13 and S16 in Fig. 7 become steps S27 and S13-2, step S16-2, and step S27-2.

In addition, the simulation device 102 also performs the operations of step S(1) to step S(18) similarly to the simulation device 101, but the steps S(1) to step S(18) with different processing contents will be described.

<Steps S(6) to S(8)> In step S(6), the wiring is arranged with multiple coarse and fine meshes to create a multiple mesh type piping factory model. In step S(7), the mesh calculation unit 120 allocates the parameters of the mesh thickness adjustment unit 121, and implements the arrangement and wiring of plural changes. On this occasion, you can limit the conditions (according to the input budget and production line characteristics, rough point target or detailed point target setting). In addition, the basic condition of "general loop piping that is not mesh type" is set as a baseline. In step S(8), the plant model management unit 111 manages the result of step S(7) as a plurality of plant models.

<Steps S(6), S(10)> In step S(9), the complex construction cost (including the baseline) of the plant model corresponding to step S(7) is calculated. In step S(10), the cost calculation unit 130 is constructed to calculate the costs of the plural factory models that the corresponding factory model management unit 111 has.

<Steps S(11) to S(14)> In step S(11), respectively calculate the operating costs when implementing the hypothetical production plan corresponding to the plural "factory model". In step S(12), the production cost calculation unit 140 simulates the operations of the equipment and the compressed air piping network using the data of the multiple plant models, the plan input unit 141, and the manufacturing method input unit 142 possessed by the plant model management unit 111. In step S(13), input the result of step S(12) to the operating cost calculation unit 150 to calculate the power consumption cost and compressed air cost of the equipment (based on the compressed air consumption of the equipment and the compressed air consumption of the piping, The cost conversion unit 153 converts to cost). In step S (14), the production cost calculation unit 140 receives the result of step S (13), and calculates the operating cost at the time of production corresponding to the multiple factory model.

<Steps S(15) to S(18)> Step S(15) evaluates the loss reduction effect of the compressed air supply of the mesh type pipe. In step S(16), based on the baseline plant model data implemented in step S(7), the baseline evaluation unit 162 maintains the cost calculated in step S(14). In step S(17), the cost corresponding to the plural factory models is input to the mesh type evaluation unit 161 and compared with the result of step S(16). In step S(18), based on the result of step S(17) and the result of step S(10), the mesh effect evaluation unit 170 calculates the effect of the fee. For example, if a construction cost of 2 million yen is invested, because the operating cost reduction effect of 1 million yen/year is estimated, the system (simulation device 102) recommends an optimal solution based on the results that can be recovered in 2 years.

Effect of Embodiment 2 The simulation device 102 of the second embodiment accepts a plurality of mesh thicknesses as input (step S13-2), outputs the effect of each mesh thickness, and automatically presents the best solution (step S27-2). Therefore, the cost effect of each mesh thickness can be quickly obtained.

Embodiment 3 With reference to Figs. 9 to 11, the simulation device 103 of the third embodiment will be described. The simulation device 103 utilizes artificial intelligence in the mesh size search for the best solution. The simulation device 104 of the fourth embodiment described later also uses artificial intelligence in the search of the mesh thickness of the optimal solution. However, the simulation device 103 inputs one mesh thickness every time, and the artificial intelligence judges whether it is the optimal solution. 104 For the input of complex mesh size, artificial intelligence outputs the best solution.

＜Description of composition＞ Figure 9 is a block diagram showing the functional configuration of the simulation device 103. The simulation device 103 includes a learning unit 180 compared to the simulation device 101 in FIG. 3. The learning unit 180 connects the mesh thickness adjustment unit 121 and the mesh effect evaluation unit 170. In order to efficiently converge the mesh thickness to an optimal solution, the learning unit 180 does not randomly assign the mesh thickness, but obtains the result of the mesh effect evaluation unit 170, and feeds back the mesh thickness adjustment. The learning unit 180 is not a "grid search". As an efficient exploration method, it should be deep learning or Metaheuristic genetic algorithm.

Figures 10 and 11 are flowcharts showing the operation of the simulation device 103. The flowchart in Fig. 10 corresponds to the flowchart in Fig. 7 in the first embodiment. With reference to Figs. 10 and 11, the operation of the simulation device 103 will be described. The operation of the simulation device 103 corresponds to a simulation method. The operation of the simulation device 103 corresponds to the processing of the simulation program. Fig. 10 is the same as Fig. 7 except that steps S13 and S16 in Fig. 7 become steps S13-3 and S16-3, and step S28 proceeds to step S29 in Fig. 11.

In addition, the simulation device 103 also performs the operations from step S(1) to step S(18) shown in Fig. 6 in the same manner as the simulation device 101, but the processing content of steps S(1) to step S(18) is different. step.

In step S(1) to step S(18), the two steps of step S(6) and step S(18) in the third embodiment are different. Others are the same as in Embodiment 1. Hereinafter, step S(6), step S(18), and Fig. 11 will be described.

In step S(6) of the third embodiment, the layout and wiring of the mesh is performed according to one thickness, and a mesh-type piping factory model is created.

In step S(18), based on the result of step S(17) and the result of step S(10), the mesh effect evaluation unit 170 calculates the cost-to-effect, and presents a recommended optimal solution.

Illustrate Figure 11. Step S28 in Fig. 10 proceeds to step S29 in Fig. 11. In step S29, the mesh effect evaluation unit 170 inputs to the learning unit 180 the calculation result of the fee calculated in step S28 on the effect. The learning unit 180 uses artificial intelligence for machine learning. In step S30, the learning unit 180 evaluates whether a mesh shape solution with a higher improvement effect exists. When there is no mesh shape solution with a higher improvement effect, the process proceeds to step S34, the mesh shape is determined, and the effect prediction is determined. When a mesh shape solution with a higher improvement effect exists, the process proceeds to step S32. In step S32, the learning unit 180 calculates a mesh shape proposal with a higher improvement effect. In step S33, the calculation result is input to the mesh thickness adjustment unit 121. The process proceeds from step S33 to step S13-3 in Fig. 10.

＜The method of suggesting the best solution according to the learning department 180＞ (1) The learning unit 180 evaluates whether there is a mesh shape plan that has a higher effect on effect improvement than the one fee input from the mesh effect evaluation unit 170. (2) The learning unit 180, if the mesh shape plan with higher improvement effect does not exist, prompts the input from the mesh effect evaluation unit 170 as the best solution, if there is, input a mesh shape plan with higher improvement effect to the mesh thickness adjustment部121. (3) The learning unit 180 repeats the above-mentioned step S(6) after inputting a mesh shape proposal with a high improvement effect to the mesh thickness adjustment unit 121.

＜Learning method of learning section 180＞ The learning learning unit 180 conducts pre-learning before implementing the best solution presentation. Specifically, the learning unit 180 learns the setting value of the optimal mesh thickness by performing the processing shown in Embodiments 1 and 2 during the learning, and by obtaining the calculated multiple fee pair effect. In addition, this learning may be carried out jointly with a plurality of simulation devices.

Effect of Embodiment 3 In the simulation device 103 of the third embodiment, the learning unit 180 searches for the mesh thickness that becomes the best solution. Therefore, compared to the conventional random or experience-dependent methods, the optimal solution can be reached in fewer times or in a shorter time.

Embodiment 4 Referring to Figs. 12 and 13, the simulation device 104 of the fourth embodiment will be described. The configuration of the simulation device 104 is the same as that of the simulation device 103 in FIG. 9. The simulation device 104 also includes a learning unit 180. In the simulation device 104, multiple mesh thicknesses are input.

Figures 12 and 13 are flowcharts showing the operation of the simulation device 104. With reference to Figs. 12 and 13, the operation of the simulation device 104 will be described. The operation of the simulation device 104 corresponds to the simulation method. The operation of the simulation device 104 corresponds to the processing of the simulation program.

Figure 12 is similar to Figure 7 except that steps S13, S16, and S27 in Figure 7 become steps S13-4, S16-4, and S27-4, and step S28 proceeds to step S29 in Figure 13 the same. Figure 13 is similar to Figure 11. The steps unique to Figure 13 are step S30-4, step S31-4, and step S32-4.

The simulation device 104 also performs the operations of step S(1) to step S(18) similarly to the simulation device 101, but the steps S(1) to step S(18) with different processing contents will be described. Hereinafter, in step S(1) to step S(18), the steps with different processing contents and Fig. 13 will be described.

<Steps S(6) to S(8)> In step S(6), the wiring is arranged according to the meshes of plural thicknesses, and a model of a piping factory of plural meshes is created. In step S(7), the mesh calculation unit 120 allocates the parameters of the mesh thickness adjustment unit 121, and implements the arrangement wiring of plural changes. In this case, you can set the restriction conditions (according to the initial investment budget and production line characteristics required for the introduction of piping equipment, rough or detailed targets). In addition, the condition of "general loop piping that is not a mesh type", which is the basis for comparison, is also set as a baseline. In step S(8), the plant model management unit 111 manages the result in step S(7) as a plurality of plant models.

<Steps S(9), S(10)> In step S(9), the complex construction cost (including the baseline) of the plant model corresponding to step S(7) is calculated. In step S(10), the construction cost calculation unit 130 calculates the cost of the plural factory models that the corresponding factory model management unit 111 has.

<Steps S(11) to S(14)> In step S(11), respectively calculate the operating costs for the implementation of the hypothetical production plan corresponding to the plural factory models. In step S(12), the mesh-type piping factory model is used to manage the data of the multiple factory models, the plan input unit 141, and the manufacturing method input unit 142, and the production cost calculation unit 140 multiple simulations of each equipment and compressed air piping network (with The on-off valve controls the operation of the supply). In step S(13), input the result of step S(12) to the operating cost calculation unit 150 to calculate the power consumption cost and compressed air cost of the equipment (based on the compressed air consumption of the equipment and the compressed air consumption of the piping, The cost conversion unit 153 converts to cost). In step S (14), the production cost calculation unit 140 receives the result of step S (13), and calculates the operating cost at the time of production corresponding to the multiple factory model.

<Steps S(15) to S(18)> Step S(15) evaluates the loss reduction effect of the compressed air supply of the mesh type pipe. In step S(16), based on the baseline "factory model" data implemented in step S(7), the baseline evaluation unit 162 maintains the cost calculated in step S(14). In step S(17), the cost corresponding to the plural "factory model" is input to the mesh type evaluation unit 161 and compared with the result of step S(16). In step S(18), based on the result of step S(17) and the result of step S(10), the mesh effect evaluation unit 170 calculates the cost-to-effect, presents the recommended plural best solution candidates, and gives them to the learning described later部180.

Illustrate Figure 13. Step S28 in Fig. 12 proceeds to step S29 in Fig. 13. In step S29, the mesh effect evaluation unit 170 inputs to the learning unit 180 the calculation result of the fee calculated in step S28 on the effect. The learning unit 180 uses artificial intelligence for machine learning. In step S30-4, the learning unit 180 uses the evaluation result as the learning material, and learns a mesh shape solution with a high improvement effect. In step S31-4, the learning unit 180 determines whether the stop condition is met. The "stop condition" here is a condition like condition 1 or condition 2 below. Condition 1: The condition where the difference in mesh thickness is below the critical value. Condition 2: The number of loops or loop time exceeds the critical value. When the condition 1 or the condition 2 is met, the processing of the learning unit 180 proceeds to step S34. If the "stop condition" is not met, the process proceeds to step S32-4. In step S32-4, the learning unit 180 selects a mesh shape solution with a high plural improvement effect based on the learning result. In step S33, the learning unit 180 inputs the calculation result to the mesh thickness adjustment unit 121. The process proceeds from step S33 to step S13-4 in Fig. 12.

＜The best solution presentation method of learning section 180＞ The learning unit 180 of the fourth embodiment simultaneously implements learning and optimal presentation. (1) The learning unit 180 learns the conditions for a mesh shape plan with a high improvement effect based on the multiple cost-to-effects input from the mesh effect evaluation unit 170. (2) The learning unit 180 performs stop condition determination, and if the stop condition is satisfied (YES in step S31-4), from the current cost-to-effects, the mesh shape plan with the highest cost-to-effect is the best solution. If the stop condition is not satisfied (NO in step S31-4), the learning unit 180 selects a mesh shape plan with a higher improvement effect based on the learning result (step S32), and inputs it to the mesh thickness adjustment unit 121. (3) When the learning unit 180 inputs one mesh shape plan to the mesh thickness adjustment unit 121, the step S(6) is repeated.

Effect of Embodiment 4 In the simulation device 104 of the fourth embodiment, the learning unit 180 targets the multiple mesh thicknesses and finds the optimal solution for the mesh thickness. Therefore, the optimal solution for mesh thickness can be quickly obtained.

Embodiment 5 In the fifth embodiment, the hardware configuration of the simulation devices 101, 102, 103, and 104 described in the first to fourth embodiments will be described. Figure 14 shows the hardware configuration of the simulation devices 101 and 102. Figure 15 shows the hardware configuration of the simulation devices 103 and 104. In FIG. 14, the processor 10 does not have a learning unit 180, but in FIG. 15 the processor 10 has a learning unit 180.

＜Simulation device 101＞ In the following, the simulation device 101 is taken as an example for description. The simulation device 101 is a computer. As shown in FIG. 14, the simulation device 101 includes the processor 10, and also includes hardware such as the main memory device 20, the auxiliary memory device 30, the input IF 40, the output IF 50, and the communication IF 60. And IF stands for interface. The processor 10 is connected to other hardware via a signal line 70 and controls these other hardware.

The simulation device 101 includes a model management unit 110, a mesh calculation unit 120, a construction cost calculation unit 130, a production cost calculation unit 140, an operating cost calculation unit 150, a reduction effect calculation unit 160, and a mesh effect evaluation unit 170 as functional elements. The functions of the model management unit 110, the mesh calculation unit 120, the construction cost calculation unit 130, the production cost calculation unit 140, the operating cost calculation unit 150, the reduction effect calculation unit 160, and the mesh effect evaluation unit 170 are realized by the simulation program 101a.

The processor 10 is a device that executes the simulation program 101a. The processor 10 is an IC (Integrated Circuit) that performs arithmetic processing. Specific examples of the processor 10 are CPU (Central Processing Unit), DSP (Digital Signal Processor), and GPU (Graphics Processing Unit).

Specific examples of the main memory device 20 are SRAM (Static Random Access Memory) and DRAM (Dynamic Random Access Memory). The main memory device 20 holds the calculation results of the processor 10.

The auxiliary memory device 30 is a memory device for non-volatile storage of data. A specific example of the auxiliary memory device 30 is an HDD (Hard Disk Drive). Also, the auxiliary memory device 30 may be SD (registered trademark) (Secure Digital) memory card, NAND Flash (flash), Flexible disc (floppy disk), optical disc, Compact Disc (compact disc), Blue ray ( Portable recording media such as Blu-ray) (registered trademark) disc, DVD (digital audio-visual disc). The auxiliary memory device 30 stores the piping cost DB133, the piping DB151b, the equipment DB152b, and the simulation program 101a.

The input IF40 is a port for connecting an input device 200 like a mouse or a keyboard to input data from each device. The output IF50 is a port for connecting various devices like the display device 300 or external devices, and the processor 10 outputs data to various devices. The communication IF60 is a communication port used by the processor 10 to communicate with other devices.

The processor 10 downloads the simulation program 101a from the auxiliary storage device 30 to the main storage device 20, and reads and executes the simulation program 101a from the main storage device 20. In the main storage device 20, in addition to the simulation program 101a, the OS (operating system) is also stored. The processor 10 executes the simulation program 101a while executing the OS. The simulation device 101 may include a plurality of processors instead of the processor 10. These plural processors share the execution of the simulation program 101a. Each processor, like the processor 10, is a device that executes the simulation program 101a. The data, information, signal values, and variable values used, processed or output by the simulation program 101a are stored in the main memory device 20, the auxiliary memory device 30, or the register or cache memory in the processor 10.

The simulation program 101a renames the model management unit 110, the mesh calculation unit 120, the construction cost calculation unit 130, the production cost calculation unit 140, the operating cost calculation unit 150, the reduction effect calculation unit 160, and the mesh effect evaluation unit 170 to be executed by the computer. "Department" refers to each process, each procedure or each step program of "processing", "procedure" or "step".

In addition, the simulation detection method is a method of executing the simulation program 101a through the simulation device 101 of the computer.

The simulation program 101a may be stored in a computer-readable recording medium or provided as a program product.

The hardware configuration of the simulation device 102 is also the same as that of the simulation device 101 described above. In addition, the hardware configuration of the simulation device 103 and the simulation device 104 is also the same as that of the simulation device 101 described above. In addition, the simulation device 103 and the simulation device 104 except for the model management unit 110, the mesh calculation unit 120, the construction cost calculation unit 130, the production cost calculation unit 140, the operating cost calculation unit 150, the reduction effect calculation unit 160, and the mesh effect evaluation unit 170 , Also includes the learning unit 180. The model management unit 110, the mesh calculation unit 120, the construction cost calculation unit 130, the production cost calculation unit 140, the operating cost calculation unit 150, the reduction effect calculation unit 160, the mesh effect evaluation unit 170, and the learning unit 180, execute programs with the processor 10 achieve.

＜Complement of hardware configuration＞ In the simulation device shown in Figures 14 and 15, the function of the simulation device is realized by software, but the function of the simulation device may be realized by hardware. Figure 16 shows the structure of the simulation device 101 implemented in hardware. The electronic circuit 90 in Figure 16 is a dedicated electronic circuit that realizes the model management unit 110, the mesh calculation unit 120, the construction cost calculation unit 130, the production cost calculation unit 140, the operating cost calculation unit 150, the reduction effect calculation unit 160, and the mesh effect The function of the evaluation unit 170, the main memory device 20, the auxiliary memory device 30, the input IF40, the output IF50, and the communication IF60. The electronic circuit 90 is connected to the signal line 91. The electronic circuit 90 is, specifically, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, a logic IC (integrated circuit), GA, ASIC or FPGA (field programmable gate array). GA is the abbreviation of Gate Array. ASIC is the abbreviation of (Application Specific Integrated Circuit). FPGA is the abbreviation of (Field-Programmable Gate Array). The function of the component elements of the analog device 101 is based on one electronic circuit It may be realized, or distributed into plural electronic circuits. Some functions of the components of the analog device 101 may be realized by electronic circuits, and the remaining functions may be realized by software.

The processor 10 and the electronic circuit 90 are respectively called processing circuits. In the simulation device 101, the functions of the model management unit 110, the mesh calculation unit 120, the construction cost calculation unit 130, the production cost calculation unit 140, the operating cost calculation unit 150, the reduction effect calculation unit 160, and the mesh effect evaluation unit 170 are realized by processing circuits It is also possible. Alternatively, the model management unit 110, the mesh calculation unit 120, the construction cost calculation unit 130, the production cost calculation unit 140, the operating cost calculation unit 150, the reduction effect calculation unit 160, the mesh effect evaluation unit 170, the main memory device 20, and the auxiliary memory device 30. The function of input IF40, output IF50 and communication IF60 can be realized by processing circuit. The description of FIG. 16 described above is also applicable to the simulation devices 102 and 103 and the simulation device 104.

10: processor 20: Main memory device 30: auxiliary memory device 40: Enter IF 50: output IF 60: Communication IF 90: electronic circuit 91: signal line 101: Simulator 101a: Simulation program 102: Simulator 103: Simulator 104: Simulator 110: Model Management Department 111: Factory Model Management Department 112: Cost Model Making Department 113: Piping Model Making Department 114: Factory configuration model production department 115: Equipment Model Making Department 120: Mesh Calculation Department 121: Mesh thickness adjustment section 122: Mesh wiring department 130: Construction of cost calculation department 131: Baseline Evaluation Department 132: Piping Cost Calculation Department 133: Piping cost DB 140: Production Cost Calculation Department 141: Project Input Department 142: System Input Department 143: Simulation Implementation Department 150: Operating Cost Calculation Department 151: Piping Evaluation Department 151a: Piping calculation department 151b: Piping DB 152: Equipment Evaluation Department 152a: Equipment Computing Department 152b: Device DB 153: Cost Conversion Department 160: Reduction effect calculation department 161: Mesh Type Evaluation Department 162: Baseline Evaluation Department 170: Mesh Effect Evaluation Department 180: Learning Department 200: input device 230: Production Implementation System 240: Compressor control device 250: Valve Control Department 300: display device 700: Factory 710: Compressor 720: Valve 730: receiving slot 740: Valve 800: Mesh piping circuit 801: Valve 802: Piping 810, 810a, 810b: use equipment 1000: fluid supply system V, V1, V2: Valve

[Figure 1] is a diagram showing the first embodiment, including a fluid supply system 1000 of a factory to be simulated; [Figure 2] is a diagram illustrating the first embodiment, a supply path diagram in the mesh piping circuit 800; [Figure 3] is a block diagram showing the configuration of the simulation device 101 in the figure of the first embodiment; [Figure 4] is a circuit diagram showing the four mesh piping in the mesh wiring section 122 in the figure of the first embodiment; [Figure 5] is a diagram showing the first embodiment of the production input plan and manufacturing method input to the production cost calculation unit 140; [Figure 6] is a program diagram of the simulation device 101 in the figure of the first embodiment; [Figure 7] is a diagram of the first embodiment, supplementing the flowchart of Figure 6; [Figure 8] is a diagram of the second embodiment, illustrating the operation flowchart of the simulation device 102; [Figure 9] is a block diagram showing the function of the simulation device 103 in the figure of the third embodiment; [Figure 10] is a diagram of the third embodiment, illustrating the operation flowchart of the simulation device 103; [Figure 11] is a diagram of the third embodiment, a flowchart continued from Figure 10; [Figure 12] is a diagram of the fourth embodiment, illustrating the operation flowchart of the simulation device 104; [Figure 13] is a flowchart of the fourth embodiment, continuing from Figure 12; [Figure 14] is a diagram showing the hardware configuration of the simulation devices 101 and 102 in the fifth embodiment; [Figure 15] is a diagram showing the hardware configuration of the simulation devices 103 and 104 in the fifth embodiment; and [Figure 16] is a diagram of the fifth embodiment, complementing the hardware configuration diagram.

101: Simulator

110: Model Management Department

111: Factory Model Management Department

112: Cost Model Making Department

113: Piping Model Making Department

114: Factory configuration model production department

115: Equipment Model Making Department

120: Mesh Calculation Department

121: Mesh thickness adjustment section

122: Mesh wiring department

130: Construction of cost calculation department

131: Baseline Evaluation Department

132: Piping Cost Calculation Department

133: Piping cost DB

140: Production Cost Calculation Department

141: Project Input Department

142: System Input Department

143: Simulation Implementation Department

150: Operating Cost Calculation Department

151: Piping Evaluation Department

151a: Piping calculation department

151b: Piping DB

152: Equipment Evaluation Department

152a: Equipment Computing Department

152b: Device DB

153: Cost Conversion Department

160: Reduction effect calculation department

161: Mesh Type Evaluation Department

162: Baseline Evaluation Department

170: Mesh Effect Evaluation Department

Claims (4)

A simulation device, including: The mesh calculation unit has plural valves including plural solenoid valves that can be opened and closed according to control, and plural piping. Since the plural piping connection valves of the plural piping are arranged between the plural piping connection valves, the plural piping is arranged in a mesh shape, and the fluid is produced according to the input mesh thickness The piping model of the inflowing mesh piping circuit model, by combining the above-mentioned piping model created with the factory layout model representing the factory model using the above mesh piping circuit, to create a factory model including the above mesh piping circuit and a model of the simulation target ； The construction cost calculation department calculates the construction cost of the aforementioned factory represented by the aforementioned factory model; The production cost calculation department, by simulating the above-mentioned factory model, the above-mentioned factory uses the above-mentioned mesh piping circuit to calculate the operating cost of operation; and The mesh effect evaluation department evaluates the effect of the above mesh piping circuit based on the above construction cost and the above operation cost. The simulation device described in item 1 of the scope of patent application, wherein: The production cost calculation unit, for the factory model produced by the mesh calculation unit, calculates the operating cost for each production plan of the multiple production plan through simulation; The above-mentioned mesh effect evaluation department evaluates the above-mentioned operating costs. A simulation program product that enables a computer to simulate the following processing: The mesh calculation processing includes plural valves including plural solenoid valves that can be opened and closed according to the control, and plural piping. Since the plural piping connection valves of the plural piping are arranged between the plural piping connection valves, the plural piping is arranged in a mesh shape, and the fluid is produced according to the input mesh thickness The piping model of the inflowing mesh piping circuit model, by combining the above-mentioned piping model created with the factory layout model representing the factory model using the above mesh piping circuit, to create a factory model including the above mesh piping circuit and a model of the simulation target ； Construction cost calculation processing to calculate the construction cost of the aforementioned factory represented by the aforementioned factory model; Production cost calculation processing, by simulating the above-mentioned factory model, the above-mentioned factory uses the above-mentioned mesh piping circuit to calculate the operating cost of operation; and The mesh effect evaluation process evaluates the effect of the above mesh piping circuit based on the above construction cost and the above operation cost. A simulation program method that uses a computer to perform the following steps: It has a plurality of valves including a plurality of solenoid valves that can be opened and closed according to the control, and a plurality of piping. Since the piping connection valves of the above-mentioned plurality of pipings are connected to each other, the plurality of pipings are arranged in a mesh shape, and the mesh piping into which the fluid flows is made according to the input mesh thickness The piping model of the circuit model, by combining the above-mentioned piping model and the factory configuration model representing the factory model that uses the above-mentioned mesh piping circuit, to create a factory model including the above-mentioned mesh piping circuit and a model of the simulation object; Calculate the construction cost of the aforementioned factory represented by the aforementioned factory model; By simulating the above-mentioned factory model, the above-mentioned factory uses the above-mentioned mesh piping circuit to calculate the operating cost of operation; and The mesh effect evaluation process evaluates the effect of the above mesh piping circuit based on the above construction cost and the above operation cost.

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