Plant evaluation system, plant evaluation program, and plant evaluation method

Abstract

To provide a system, program, or method for evaluating the value of a plant. [Solution] The server, A communication unit 210 capable of communicating with the aforementioned terminal, A storage unit 220 that stores a three-dimensional model of the plant, which is an object created using optical means, A drawing creation unit 230 that creates a CAD drawing from the three-dimensional model stored in the memory unit, A spatial movement unit 240 that displays on the terminal so as to move within the three-dimensional model or the CAD drawing, An evaluation unit 250 that evaluates the value of the plant based on the three-dimensional model or the CAD drawing, The present invention provides a plant management system that includes a determination unit 260 that determines whether or not repairs to the plant are necessary based on the three-dimensional model or the CAD drawing.

Description

Technical Field

[0005] , , ,

[0001] The present invention relates to a plant evaluation system, a plant evaluation program, and a plant evaluation method.

Background Art

[0002] Conventionally, plants such as chemical plants are equipped with facilities such as tanks, pipes, and pressure transmitters that handle various fluids, and those facilities are controlled and managed by a predetermined plant control and management device or system.

[0003] And the plant is expanded or the like according to its use or the like.

[0004] In Patent Document 1, a plant maintenance work attention degree change system that outputs the work content state of plant maintenance on drawing data for plant maintenance is disclosed, and a drawing data acquisition unit that acquires the drawing data, an output unit that outputs the acquired drawing data, a designation unit that designates a desired location on the output drawing data, an arrangement unit that arranges arrangement data on the drawing data so as to be associated with the designated desired location, a status data acquisition unit that acquires status data indicating the work content state of the plant maintenance regarding the arranged arrangement data, A plant maintenance work attention degree change system including a change unit that changes the attention degree of the arranged arrangement data based on the acquired status data is disclosed.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] While plants are sometimes expanded or modified to suit their specific needs, in such cases, while older overall drawings may exist, drawings of the expanded sections may be lacking. Furthermore, drawings of the entire plant, including any expansions, may be unavailable.

[0007] In such cases, if any trouble occurs on the plant, it may take a long time to pinpoint its location.

[0008] Furthermore, in M&A, mergers, and sales of companies that own plants, there is a problem in determining the value of the plant because it is difficult to determine the current value and future value of the plant.

[0009] Furthermore, when considering expanding a plant, there is a problem in that it is difficult to determine how to proceed with the expansion.

[0010] Furthermore, without a complete blueprint of the plant, it becomes difficult to plan evacuation routes in the event of an accident.

[0011] The main objective of the present invention is to provide a system, program, or method for evaluating the current and future value of a plant.

[0012] Another object of the present invention is to provide a system, program, or method for considering the expansion or repair of a plant. [Means for solving the problem]

[0013] A plant management system according to the first aspect of the present invention is a plant management system that includes a server capable of communicating with a terminal in order to determine the repair of a plant which is the object of a three-dimensional model, The aforementioned server, A communication unit capable of communicating with the aforementioned terminal, A memory unit that stores a three-dimensional model of the plant, which is an object created using optical means, A drawing creation unit that creates a CAD drawing from the three-dimensional model stored in the memory unit, A spatial movement unit that displays the three-dimensional model or CAD drawing on the terminal so as to move within it, An evaluation unit that evaluates the value of the plant based on the three-dimensional model or the CAD drawing, The plant management system includes a determination unit that determines whether or not repairs to the plant are necessary based on the three-dimensional model or the CAD drawing.

[0014] With this kind of system, even for plants that have undergone expansions or other modifications and lack overall blueprints, CAD drawings can be created, making it easier to pinpoint the location of any problems that may occur on the plant.

[0015] Furthermore, it can be used to determine the current and future value of a plant in M&A, mergers, or sales transactions involving companies that own plants.

[0016] Furthermore, it has the advantage of making it easier to decide where and how to expand the plant.

[0017] A plant management system according to the second aspect of the present invention is a plant management system according to the first aspect, The aforementioned drawing creation unit is a plant management system that color-codes parts of the plant in the CAD drawing based on the time when those parts of the plant were constructed or expanded.

[0018] Color-coding CAD drawings makes it easier to determine when a particular section was constructed or expanded, thus facilitating plant management.

[0019] A plant management system according to the third aspect of the present invention is a plant management system according to the first aspect, When the determination unit determines that a part of the plant needs to be repaired based on the time when a part of the plant was constructed or expanded, the drawing creation unit changes the color of the part determined to need repair in the CAD drawing. It is a plant management system.

[0020] This has the advantage of immediately showing the parts that need to be repaired.

[0021] The plant management system according to the fourth aspect of the present invention is the plant management system according to the first aspect, When the determination unit determines that a part of the plant needs to be repaired and the repair is performed on the part determined to need repair, the evaluation unit is a plant management system that raises the evaluation of the plant.

[0022] This enables the current and future value of the plant.

[0023] The plant management system according to the fifth aspect of the present invention is the plant management system according to the first aspect, The evaluation unit is a plant management system that evaluates the plant based on a market approach.

[0024] By evaluating the plant using a market approach, the accurate value of the plant can be understood.

[0025] The plant management program according to the sixth aspect of the present invention is a plant management program including a server capable of communicating with a terminal in order to determine the repair of a plant that is a three-dimensional model object, The server is, A communication process capable of communicating with the terminal, A storage process for storing a three-dimensional model of a plant that is an object created using optical means, A drawing creation process for creating a CAD drawing from the three-dimensional model stored in the storage process, A spatial movement process that displays the three-dimensional model or CAD drawing on the terminal so as to move within it, An evaluation process for evaluating the value of the plant based on the three-dimensional model or the CAD drawing, This is a plant management program that performs a determination process to determine whether or not repairs to the plant are necessary based on the three-dimensional model or the CAD drawing.

[0026] Such a program would produce the same effect as the first phase.

[0027] A plant management method according to the seventh aspect of the present invention is a plant management method that includes a server capable of communicating with a terminal in order to determine whether to repair a plant which is the object of a three-dimensional model, The aforementioned server, A communication process that enables communication with the aforementioned terminal, A memory process for storing a three-dimensional model of the plant, which is an object created using optical means, A drawing creation step which creates a CAD drawing from the three-dimensional model stored in the memory step, A spatial movement step of displaying the three-dimensional model or CAD drawing on the terminal so as to move within it, An evaluation step of evaluating the value of the plant based on the three-dimensional model or the CAD drawing, The plant management method includes a determination step of determining whether or not repairs to the plant are necessary based on the three-dimensional model or the CAD drawing.

[0028] This method produces the same effect as the first and sixth phases. [Brief explanation of the drawing]

[0029] [Figure 1] A conceptual diagram illustrating the creation of a 3D model of a building by optical means in one embodiment of the present invention. [Figure 2] A conceptual diagram illustrating the creation of a 3D model of the building S by optical means in the same embodiment. [Figure 3]A conceptual diagram illustrating the creation of a 3D model of plant F by optical means in one embodiment of the present invention. [Figure 4] A conceptual diagram illustrating the creation of a 3D model of plant F by optical means in one embodiment of the present invention. [Figure 5] A conceptual diagram illustrating the creation of a 3D model of plant F by optical means in one embodiment of the present invention. [Figure 6] A conceptual diagram of a plant management system according to one embodiment of the present invention. [Figure 7] A conceptual diagram of a CAD drawing created from a 3D model of plant F in one embodiment of the present invention. [Figure 8] A conceptual diagram of a CAD drawing created from a 3D model of plant F in one embodiment of the present invention. [Figure 9] A conceptual diagram of a CAD drawing created from a 3D model of plant F in one embodiment of the present invention. [Figure 10] A conceptual diagram of a CAD drawing created from a 3D model of plant F in one embodiment of the present invention. [Figure 11] Flowchart for plant maintenance and valuation in one embodiment of the present invention [Modes for carrying out the invention]

[0030] Embodiments of the present invention will be described below with reference to the drawings.

[0031] (optical means) In this embodiment, photogrammetry is used as an optical means for producing 3DCG.

[0032] The light used as an optical means may be any type of light, such as natural light or laser light.

[0033] "Photogrammetry" is a technology that generates realistic 3D computer graphics from photographs.

[0034] Specifically, photogrammetry is a technique that combines multiple photographs of an object (in this embodiment, a building) taken from various angles.

[0035] The number of photos required will vary depending on how realistic and detailed you want the 3DCG model to be. The number of photos needed can range from tens to hundreds.

[0036] The photogrammetry production process follows these steps: 1) shooting, 2) alignment, 3) mesh generation (point cloud data creation), 4) simplification, 5) unwrap, and 6) texture generation.

[0037] Since parts that are not photographed cannot be recreated, the subject, the building, is photographed from various angles.

[0038] Careful attention is required during the shooting process, as any missed shots can lead to alignment failures or mesh generation problems.

[0039] Figures 1 and 2 show examples of areas photographed by the imaging device P. As can be seen from Figures 1 and 2, imaging is performed in principle with horizontal and vertical movement.

[0040] In this embodiment, the imaging equipment P uses a 3D laser scanner, a handheld scanner, and a drone.

[0041] Using laser scanning can yield a more accurate mesh.

[0042] Furthermore, using a drone makes it possible to photograph the roof of a target object, for example. It is also possible to take photos from high places using long poles or similar equipment.

[0043] "Alignment" refers to the process of positioning an object (element) based on its respective points.

[0044] In this embodiment, alignment involves positioning the building S with each point of the building S as a reference.

[0045] To ensure successful alignment, it is necessary to avoid missing any shots during imaging with imaging device P.

[0046] "Mesh generation" creates a mesh at the normal resolution. By reducing the image size, processing time can be shortened without affecting quality.

[0047] Simplification involves adjusting the number of polygons depending on the object. A "polygon" is a polygon (plane) used in 3D graphics to represent the curved surface of a three-dimensional object.

[0048] Set the texture resolution and number of textures in the settings, and then select Unwrap.

[0049] The term "texture" originally refers to the feel or texture of an object's surface. In 3D computer graphics (CG), patterns or images applied to the surface of a 3D object to represent its surface texture are called "textures," and the technique of applying textures in this way is called "texture mapping."

[0050] Texture mapping makes 3D objects appear more realistic. For example, the same object can look like a piece of metal if a metal texture is applied, or like a piece of wood if a wood grain texture is applied. Texture mapping can also be used to represent reflections on glossy tables or glass.

[0051] Mesh data consists of polygons and textures.

[0052] The 3DCG (3D models) created using this photogrammetry can be used in the metaverse, etc.

[0053] Furthermore, the 3D models of buildings S and other structures created using photogrammetry are assigned spatial coordinates (X, Y, Z), allowing the actual distance to be determined based on the coordinate positions.

[0054] Photogrammetry can also be constructed using point cloud data. Compared to mesh data, point cloud data consists only of information from independent points and is closer to the raw data obtained from the sensor, so it often has superior accuracy.

[0055] In this embodiment, photogrammetry is created using point cloud data.

[0056] The basic data format for point cloud data consists of six parameters: the spatial coordinates (X, Y, Z) and color (R (red), G (green), B (blue)) for each vertex. In addition, it may include scalar information such as reflectance and normal vectors.

[0057] Figures 3 through 5 show a portion of the plant's point cloud data.

[0058] As shown in Figure 6, the plant management system 100 according to this embodiment includes a cloud server 200 which is a server, The first terminal 300 is an administrator terminal that can access the cloud server 200, This includes a second terminal 400, which is a user-side terminal capable of accessing the cloud server 200.

[0059] The cloud server 200 is a server built on the cloud, and its server functions can be accessed via the internet. In this embodiment, the cloud server 200 is used as the server, but a regular server may also be used.

[0060] As shown in Figure 6, the cloud server 200 has a communication unit 210 that can communicate with the first terminal 300, A memory unit 220 that stores a 3D model (three-dimensional model) of plant F, which is an object created using photogrammetry, A drawing creation unit 230 creates a CAD (Computer-Aided Design) drawing from a 3D model of plant F stored in the memory unit 220, A spatial movement unit 240 displays the CAD drawing created by the 3D model or drawing creation unit 230 of plant F on a terminal (second terminal 400) so that it can move within the drawing, An evaluation unit 250 evaluates the value of plant F based on a 3D model of plant F or a CAD drawing created by the drawing creation unit 230, The system includes a determination unit 260 that determines whether or not repairs such as replacement of parts of plant F are necessary, based on a 3D model of plant F or a CAD drawing created by a drawing creation unit 230.

[0061] The communication unit 210 communicates with the first terminal 300. The communication method may be either wired or wireless. There may be multiple first terminals 300.

[0062] The memory unit 220 stores 3D models of plants such as Plant F, which were created using photogrammetry.

[0063] Furthermore, the memory unit 220 stores 3D models of plant F and other structures damaged by earthquakes or other events.

[0064] The drawing creation unit 230 creates CAD drawings from 3D models of the plant F, etc., stored in the storage unit 220.

[0065] Figures 3 and 5 are 3D models of plant F created using photogrammetry, and Figures 7 and 8 are CAD drawings G created by the drawing creation unit 230 from the 3D model.

[0066] As shown in Figures 7 to 10, the drawing creation unit 230 creates a CAD drawing G from a 3D model created using photogrammetry.

[0067] 3D models created using photogrammetry are assigned spatial coordinates, and the spatial coordinate distances correspond to actual distances.

[0068] Then, the actual distance is calculated from the spatial coordinate distance of the 3D model, and the dimensions can be displayed from the CAD drawing G. The calculated distance may be subject to correction during the calculation process.

[0069] Additionally, if distortion occurs in the lens of the imaging device P, it may be corrected.

[0070] This makes it possible to create CAD drawings even if expansions or other modifications have been made and CAD drawings of the entire plant are not available.

[0071] By creating a 3D model from point cloud data and then generating a CAD drawing from that model, it is possible to create a highly detailed CAD drawing.

[0072] Furthermore, when the drawing creation unit 230 creates a CAD drawing G from a 3D model, it can color-code the CAD drawing G according to the time of construction or expansion.

[0073] Additionally, the colors within CAD drawing G can be selected through the settings.

[0074] As shown in Figures 9 and 10, the spatial movement unit 240 uses point cloud data (3D data) of plant F and CAD drawing G to display a screen that makes it appear as if the screen displayed on the display unit of the terminal (second terminal 400) is moving within the CAD drawing G.

[0075] From the point cloud data (3D data) of Plant F, a CAD drawing G of the entire Plant F can be created, and the CAD drawing G can be displayed from a pedestrian's perspective.

[0076] The spatial movement unit 240 includes a direction determination unit 241 that determines the direction of travel on the display screen and displays a CAD drawing G from the perspective of a pedestrian ahead on the terminal's display screen, A viewpoint movement unit 242 that moves the viewpoint of the terminal's display screen, It includes a zoom unit 243 that zooms in and out of the CAD drawing G displayed on the terminal's display screen.

[0077] The direction determination unit 241 determines the direction of travel, such as moving forward, stopping, turning left or right, or going back, within the CAD drawing G.

[0078] Specifically, the direction determination unit 241 displays a CAD drawing G from the perspective of a pedestrian ahead on the display screen of the terminal (second terminal 400).

[0079] The viewpoint shifting unit 242 changes the viewpoint within the CAD drawing G. Specifically, the viewpoint shifting unit 242 displays the CAD drawing G from the pedestrian's perspective, with the viewpoint shifted, on the display screen of the terminal (second terminal 400).

[0080] The scaling unit 243 enlarges and reduces the viewpoint within the CAD drawing G.

[0081] Specifically, the scaling unit 243 enlarges and reduces the display of the CAD drawing G on the display screen of the terminal (second terminal 400).

[0082] The spatial movement unit 240 can display on the second terminal 400 the access route to the destination within Plant F and the evacuation route in the event of an accident.

[0083] The evaluation unit 250 evaluates the value of Plant F based on the size of Plant F determined from point cloud data (3D data) and CAD drawings G, the production volume and processing capacity of Plant F, the age of Plant F, and the expansion history of Plant F.

[0084] Furthermore, the evaluation unit 250 may evaluate plant F based on an income approach, a market approach, or a cost approach.

[0085] The income approach is a method of calculating value based on revenue (cash flow).

[0086] In other words, the income approach evaluates the value of Plant F based on its operational trends and the resulting cash (revenue).

[0087] The market approach is a method of calculating a company's value relatively based on market data such as stock prices of publicly traded companies with similar businesses.

[0088] In other words, the market approach evaluates the value of Plant F by considering factors such as the purchase price of a factory of similar size (size of Plant F, production and processing capacity of Plant F, age of Plant F, expansion history of Plant F, etc.), the cost of constructing a new factory, and the price of a business transfer.

[0089] The cost approach is a valuation method based on the assets and liabilities of a company's balance sheet, primarily focusing on net assets, which are the difference between assets and liabilities.

[0090] In other words, the cost approach evaluates the asset value of Plant F.

[0091] In this embodiment, the evaluation unit 250 evaluates plant F using a market approach.

[0092] The evaluation unit 250 has an input section 251 for entering information such as the size of plant F, the production volume and processing volume of plant F, the age of plant F, the expansion history of plant F, the purchase price of a plant of similar size, the cost of new construction, and the price if the business were transferred. Based on the entered information, the CAD drawing G, and the 3D data of plant F, the evaluation unit 250 evaluates the value of plant F. Alternatively, the evaluation unit 250 may evaluate the value of plant F based on either the CAD drawing G or the 3D data of plant F.

[0093] Furthermore, the evaluation unit 250 also records whether there have been any natural disasters such as earthquakes or tsunamis on the land where Plant F is located, and evaluates the value of Plant F.

[0094] The evaluation method of the evaluation unit 250 may be to calculate the value of plant F numerically, such as using the Weighted Average Cost of Capital.

[0095] Therefore, the evaluation unit 250 can evaluate the current value of plant F.

[0096] The determination unit 260 determines whether there are any parts of plant F that require maintenance or replacement, based on the 3D data of plant F and the CAD drawing G. Alternatively, the determination unit 260 may determine the need for maintenance of plant F based on either the CAD drawing G or the 3D data of plant F.

[0097] As shown in Figures 7 to 10, the CAD drawings G created by the drawing creation unit 230 are color-coded according to the time of construction or expansion, making it easy to see when they were built or expanded.

[0098] The determination unit 260 determines when repairs, such as replacing parts of plant F, are necessary based on the CAD drawing G created by the drawing creation unit 230.

[0099] When the time approaches for maintenance or replacement of parts of Plant F, the drawing creation unit 230 can change the color of the parts requiring replacement or repair in the CAD drawing G based on a notification from the determination unit 260 (for example, changing to red when maintenance or replacement is approaching).

[0100] In this case, based on the determination of the determination unit 260, the drawing creation unit 230 changes the color of the parts in the CAD drawing G that need to be repaired, such as by replacing parts.

[0101] The determination unit 260 notifies the second terminal 400 when repairs or replacement of parts within plant F are approaching.

[0102] Based on the determination by the determination unit 260, the user of the second terminal 400 can accurately and easily create a maintenance plan for plant F.

[0103] If repairs are carried out on Plant F based on the determination of the determination unit 260, the evaluation unit 250 will perform an evaluation that enhances the value of Plant F, upon notification from the determination unit 260 or input of that information into the evaluation unit 250.

[0104] Furthermore, the determination unit 260 can perform simulations assuming that maintenance or replacement of parts of plant F has been carried out.

[0105] In other words, assuming that maintenance and replacement of parts etc. were performed on plant F, the evaluation unit 250 will... It is possible to perform an evaluation.

[0106] In other words, the evaluation unit 250 can evaluate the future value of plant F (value after maintenance, etc.).

[0107] (Terminal 1, 300) The first terminal 300, which is a terminal, has a first communication unit 310, which is a communication function for accessing the internet in order to access the cloud server 200, A first storage unit 320 capable of storing data stored in the storage unit 220 of the cloud server 200, It includes a first display unit 330 that accesses a cloud server 200 and displays the work performed or stored data.

[0108] Examples of the first terminal 300 include personal computers and tablets.

[0109] The first communication unit 310 is where communications for internet access are performed. Through the first communication unit 310, the first terminal 300 can access the cloud server 200.

[0110] Furthermore, the first communication unit 310 also includes accessing the internet via Wi-Fi (wireless LAN) or wired LAN, etc.

[0111] The first terminal 300 is a terminal used by the administrator, and by entering a password, etc., it can access the cloud server 200 and configure the system 100.

[0112] (2nd Life 400) The second terminal 400, which is a terminal, has a second communication unit 410, which is a communication function for accessing the internet in order to access the cloud server 200, A second storage unit 420 is capable of storing a portion of the data stored in the storage unit 220 of the cloud server 200, It includes a second display unit 430 that accesses a cloud server 200 and displays the work performed or stored data.

[0113] Examples of the second terminal 400 include personal computers and tablets.

[0114] The second communication unit 410 is where communications for internet access are performed. Through the second communication unit 410, the second terminal 400 can access the cloud server 200.

[0115] Furthermore, the second communication unit 410 also includes accessing the internet via Wi-Fi (wireless LAN) or wired LAN, etc.

[0116] The user of the second terminal 400 can access the cloud server 200 and display the 3D data and CAD drawing G of plant F on the second display unit 430.

[0117] Furthermore, the user of the second terminal 400 can display the CAD drawing G on the second display unit 430 as if they were moving through the CAD drawing G using the spatial movement unit 240.

[0118] This allows access routes to destinations within Plant F, as well as evacuation routes in case of accidents, to be displayed on the second display unit 430.

[0119] (Flowchart for plant maintenance and valuation) Figure 10 shows a flowchart of the maintenance method for plant F in this embodiment. First, a 3D model of Plant F is created using photogrammetry (Step S11, 3D model creation process).

[0120] Next, the drawing creation unit 230 creates a CAD drawing G from the 3D model of plant F (step S12, drawing creation process).

[0121] The drawing creation unit 230 can calculate the actual distance from the spatial coordinate distance (the distance between (x1, y1, z1) and (x2, y2, z2)) of the 3D model of the CAD drawing G.

[0122] The drawing creation unit 230 colors the CAD drawing G according to the time when plant F was constructed or expanded (step S13, color-coding process).

[0123] Next, the evaluation unit 250 evaluates the value of plant F based on the 3D data and CAD drawing G of plant F (step S14, evaluation process).

[0124] The determination unit 260 determines when repairs such as replacement of parts of plant F are necessary based on the CAD drawing G created by the drawing creation unit 230 (step S15 is the determination step).

[0125] Next, based on the determination of the determination unit 260, the drawing creation unit 230 changes the color of the parts in the CAD drawing G that need to be replaced (step S16, modification step).

[0126] The user of the first terminal 300 determines, based on the notification from the determination unit 260, whether or not repairs such as replacing parts of plant F are necessary (step S17, notification step).

[0127] Here, a simulation can be performed assuming that parts of plant F have been replaced or otherwise modified based on a notification from the determination unit 260.

[0128] If repairs (including hypothetical ones) are carried out on Plant F based on the determination of the determination unit 260 or the decision of the user of the first terminal 300, the evaluation unit 250 performs an evaluation that increases the value of Plant F (step S18, re-evaluation step).

[0129] In other words, the evaluation unit 250 can evaluate the current value of plant F and the future value of plant F after repairs or other maintenance have been carried out.

[0130] The present invention can also be implemented in various improved, modified, or altered forms without departing from its spirit. [Explanation of Symbols]

[0131] 100... Plant Management System 200...Cloud server (server) 210... Communications Department 220...Storage section 230... Drawing Creation Department 240...Spatial movement unit 250…Evaluation Department 260...Judgment section 300...First terminal (terminal) 310...1st Communications Department 320...1st memory section 330...First display section (display section)

Claims

1. A plant management system including a terminal and a server capable of communication in order to determine the repair of a plant that is the object of a three-dimensional model, The aforementioned server, A communication unit capable of communicating with the aforementioned terminal, A memory unit that stores a three-dimensional model of the plant, which is an object created using optical means, A drawing creation unit that creates a CAD drawing from the three-dimensional model stored in the memory unit, A spatial movement unit that displays the three-dimensional model or CAD drawing on the terminal so as to move within it, An evaluation unit that evaluates the value of the plant based on the three-dimensional model or the CAD drawing, A plant management system including a determination unit that determines whether or not repairs to the plant are necessary based on the three-dimensional model or the CAD drawing.

2. The plant management system according to claim 1, wherein the drawing creation unit colors a part of the plant in the CAD drawing based on the time when a part of the plant was constructed or expanded.

3. If the determination unit determines that a part of the plant requires repair, the drawing creation unit changes the color of the part in the CAD drawing that has been determined to require repair, according to claim 1.

4. The plant management system according to claim 1, wherein the determination unit determines that a part of the plant requires repair, and when the part determined to require repair is repaired, the evaluation unit increases the evaluation of the plant.

5. The plant management system according to claim 1, wherein the evaluation unit evaluates the plant based on a market approach.

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