Incentive-imparting system, incentive-imparting device, program and incentive-imparting method

Abstract

To provide an incentive-imparting system, an incentive-imparting device, a program and an incentive-imparting method capable of increasing the number of people participating in growing algae.SOLUTION: An incentive-imparting system includes a growing apparatus for growing micro algae, a measuring apparatus measuring a physical amount showing the level of growth of the micro algae, and an incentive-imparting device. The incentive-imparting device is provided with an incentive determination part and an imparting part. The incentive determination part uses the physical amount to determine the amount of incentive in accordance with a carbon dioxide absorption amount of the micro algae or the amount of incentives in accordance with the level of growth by using the physical amount. The imparting part imparts the amount of incentives to an owner of the growing apparatus.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to an incentive granting system, an incentive granting device, a program, and an incentive granting method. [Background technology]

[0002] From the perspective of carbon neutrality, the cultivation of algae for industrial use has been attracting attention. However, cultivation of algae for industrial use requires the preparation of cultivation facilities, which is costly. In addition, cultivation of algae requires knowledge about algae. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2018-191594 A Summary of the Invention [Problem to be solved by the invention]

[0004] The problem to be solved by the embodiments of the present invention is to provide an incentive granting system, an incentive granting device, a program, and an incentive granting method that can increase the number of people participating in algae cultivation. [Means for solving the problem]

[0005] An incentive granting system according to an embodiment includes a cultivation device for cultivating microalgae, a measuring device for measuring a physical quantity indicating a degree of cultivation of the microalgae, and an incentive granting device. The incentive granting device includes an incentive determination unit and a granting unit. The incentive determination unit uses the physical quantity to determine a quantity of an incentive according to the amount of carbon dioxide absorption by the microalgae or the degree of cultivation. The granting unit grants the quantity of the incentive to an owner of the cultivation device. Effect of the Invention

[0006] The present invention can increase the number of people who participate in growing algae. [Brief description of the drawings]

[0007] [Figure 1] 1 is a block diagram showing an example of a configuration of a management system according to an embodiment and essential components included in the management system; [Diagram 2] FIG. 2 is a perspective view showing an example of the culture system in FIG. 1. [Diagram 3] 2 is a flowchart showing an example of processing by a processor of the server device in FIG. 1; [Figure 4] 2 is a flowchart showing an example of processing by a processor of the culture control device in FIG. 1. [Diagram 5] 2 is a flowchart showing an example of processing by a processor of the terminal device in FIG. 1; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] The management system according to the embodiment will be described below with reference to the drawings. Note that the scale of each part in each drawing used in the following description of the embodiment may be changed as appropriate. Also, for the purpose of explanation, each drawing used in the following description of the embodiment may be shown with the configuration omitted. Also, in each drawing and in this specification, the same reference numerals indicate similar elements. FIG. 1 is a block diagram showing an example of a management system 1 according to an embodiment and a main configuration of components included in the management system 1. Each component of each device may be built-in or external. The management system 1 provides an algae cultivation service. The algae cultivation service is a service in which a user of the algae cultivation service (hereinafter simply referred to as "user") can purchase a plot of algae cultivation equipment. The algae cultivation service cultivates algae using the cultivation equipment. The algae cultivated in the management system 1 are, for example, microalgae. The management system 1 has a function of cultivating algae using the cultivation equipment. The algae cultivation service also grants points (hereinafter referred to as "cultivation points") to the user according to the carbon dioxide absorption amount (fixed amount) or the cultivation degree of the algae cultivated using the cultivation equipment purchased by the user. The management system 1 includes, as an example, a server device 100, a cultivation system 200, and a terminal device 300. The management system 1 may include some of these. Also, FIG. 1 shows one each of the server device 100, the cultivation system 200, and the terminal device 300, but the number of each is not limited. The management system 1 is an example of an incentive granting system.

[0009] The server device 100, the culture system 200, and the terminal device 300 are connected to a network NW. The network NW is typically a communication network including the Internet. The network NW is typically a communication network including a WAN (wide area network). The network NW may be a communication network including a private network such as an intranet. The network NW may be a communication network including a LAN (local area network). The network NW may be a wireless line or a wired line, or may be a mixture of wireless and wired lines. The network NW may be a communication network including a dedicated line or a public mobile phone network.

[0010] The server device 100 is, for example, a device for providing an algae cultivation service. The server device 100, for example, manages the entire algae cultivation service. The server device 100, for example, controls the cultivation system 200. The server device 100 includes, for example, a processor 110, a read-only memory (ROM) 120, a random-access memory (RAM) 130, an auxiliary storage device 140, and a communication interface 150. A bus 160 and the like connect these components together. The server device 100 is an example of an incentive granting device.

[0011] The processor 110 is a central part of a computer that performs processes such as calculations and control necessary for the operation of the server device 100, and performs various calculations and processes. The processor 110 is, for example, a central processing unit (CPU), a micro processing unit (MPU), a system on a chip (SoC), a digital signal processor (DSP), a graphics processing unit (GPU), an application specific integrated circuit (ASIC), a programmable logic device (PLD), or a field-programmable gate array (FPGA). Alternatively, the processor 110 is a combination of a plurality of these. The processor 110 may also be a combination of these with a hardware accelerator or the like. The processor 110 controls each part to realize various functions of the server device 100 based on programs such as firmware, system software, and application software stored in the ROM 120 or the auxiliary storage device 140. The processor 110 also executes processes described below based on the programs. A part or all of the programs may be incorporated in the circuitry of the processor 110.

[0012] The ROM 120 and the RAM 130 are main storage devices of the computer with the processor 110 at its core. The ROM 120 is a non-volatile memory used exclusively for reading data. The ROM 120 stores, for example, firmware among the above programs. The ROM 120 also stores data used by the processor 110 when performing various processes.

[0013] The RAM 130 is a memory used for reading and writing data. The RAM 130 is used as a work area for storing data that is temporarily used when the processor 110 performs various processes. The RAM 130 is typically a volatile memory.

[0014] The auxiliary storage device 140 is an auxiliary storage device of a computer with the processor 110 at its core. The auxiliary storage device 140 is, for example, an EEPROM (electric erasable programmable read-only memory), a HDD (hard disk drive), or a flash memory. The auxiliary storage device 140 stores, for example, system software and application software among the above programs. The auxiliary storage device 140 also stores data used by the processor 110 in performing various processes, data generated by the processes in the processor 110, various setting values, and the like.

[0015] The data stored in the auxiliary storage device 140 includes, for example, a user DB (database) 141, a cultivation DB (database) 142, and a culture solution DB 143.

[0016] User DB141 is a database that stores and manages information about users. For example, user DB141 stores user information for each user in association with a user ID (identifier). In this way, user DB141 stores and manages information about each user. Note that the user ID is identification information unique to each user. User information is information about a user identified by the associated user ID. User information includes, for example, purchase list information and point information.

[0017] The purchase list information is information that indicates a list of the sections 222 that the user has purchased. In other words, the purchase list information is information that indicates a list of the sections 222 of which the user is the owner. The purchase list information indicates a list of the sections 222 that the user has purchased, for example, by including the section ID of each section 222 that the user has purchased. The section ID is identification information that is unique for each section 222. The sections 222 will be described later.

[0018] The point information is information indicating the number of cultivation points owned by the user. The cultivation points are points granted to the user in the algae cultivation service. The cultivation points may be points exclusive to the algae cultivation service, or points that can be used in other services. The cultivation points may also be electronic money. The user can exchange the cultivation points for goods or services. The goods or services are, for example, goods related to algae and services related to algae. The goods related to algae are, for example, goods made using algae. The cultivation points are an example of an incentive granted to the owner of the section 222.

[0019] The cultivation DB 142 is a database that stores and manages information about the algae cultivated in the algae cultivation service. For example, the cultivation DB 142 stores, for each partition 222, partition information in association with a partition ID. The partition information is information about the partition 222 identified by the associated partition ID. The partition information includes allocation information, culture solution information, absorbance information, and partition point information. The allocation information indicates whether the partition 222 is assigned to a user, and to which user it is assigned. The user assigned to the partition 222 indicates the owner of the partition 222. If the partition 222 is assigned to a user, the allocation information includes the user ID of the user. The culture solution information indicates the culture solution ID of the culture solution in the partition 222. The culture solution ID is identification information unique to each culture solution. The absorbance information indicates the absorbance of the algae solution in the partition 222. The partition point information is information indicating the amount of points generated by the partition 222.

[0020] The culture solution DB143 is a database that stores and manages information on culture solutions used for cultivating algae in the algae cultivation service. The culture solution DB143 stores culture solution information for each culture solution in association with a culture solution ID. The culture solution information includes the name of the culture solution, the price of the culture solution, the composition of the culture solution, and information indicating the characteristics of the culture solution. Examples of the composition components of the culture solution include water, nitrogen, ammonium salts, nitrates, other inorganic nitrogen sources, peptone, urea, other organic nitrogen sources, phosphorus, phosphates, dipotassium hydrogen phosphate, potassium dihydrogen phosphate, calcium phosphate, sulfur, magnesium sulfate, zinc sulfate, ferrous sulfate, copper sulfate, calcium sulfate, calcium chloride, boric acid, manganese chloride, hexaammonium heptamolybdate, zinc sulfate, ferrous sulfate, copper sulfate, and other minerals. The information indicating the characteristics of the culture solution includes information indicating the main use of the algae cultivated using the culture solution.

[0021] The culture medium DB 143 stores information on a plurality of types of culture medium whose compositions are determined in advance.

[0022] The communication interface 150 is an interface for the server device 100 to communicate via a network NW or the like.

[0023] The bus 160 includes a control bus, an address bus, a data bus, etc., and transmits signals exchanged among the various components of the server device 100 .

[0024] The culture system 200 will be described with reference to Fig. 2 in addition to Fig. 1. Fig. 2 is a perspective view showing an example of a culture system 220. The culture system 200 is a system for cultivating algae. The culture system 200 cultivates algae, for example, by cultivating the algae. The culture system 200 includes, as an example, a culture control device 210, a culture device 220, an absorbance measurement device 230, and a camera 240. Note that the number of the culture control devices 210, the culture devices 220, the absorbance measurement devices 230, and the cameras 240 is not limited.

[0025] The culture control device 210 is a device that controls the culture device 200 that cultures algae. The culture control device 210 includes, for example, a processor 211, a ROM 212, a RAM 213, an auxiliary storage device 214, a communication interface 215, and a control interface 216. A bus 217 and the like connect these respective units.

[0026] The processor 211 is a central part of a computer that performs processes such as calculations and control necessary for the operation of the culture system 200, and performs various calculations and processes. The processor 211 is, for example, a CPU, an MPU, an SoC, a DSP, a GPU, an ASIC, a PLD, or an FPGA. Alternatively, the processor 211 is a combination of a plurality of these. The processor 211 may also be a combination of these with a hardware accelerator. The processor 211 controls each part to realize various functions of the culture system 200 based on programs such as firmware, system software, and application software stored in the ROM 212 or the auxiliary storage device 214. The processor 211 also executes processes described later based on the programs. Note that a part or all of the programs may be incorporated in the circuit of the processor 211.

[0027] The ROM 212 and the RAM 213 are main storage devices of the computer with the processor 211 at its core. The ROM 212 is a non-volatile memory used exclusively for reading data. The ROM 212 stores, for example, firmware among the above programs. The ROM 212 also stores data used by the processor 211 when performing various processes.

[0028] The RAM 213 is a memory used for reading and writing data. The RAM 213 is used as a work area for storing data that is temporarily used when the processor 211 performs various processes. The RAM 213 is typically a volatile memory.

[0029] The auxiliary storage device 214 is an auxiliary storage device of a computer with the processor 211 as its core. The auxiliary storage device 214 is, for example, an EEPROM, a HDD, or a flash memory. The auxiliary storage device 214 stores, for example, system software and application software among the above programs. The auxiliary storage device 214 also stores data used by the processor 211 in performing various processes, data generated by the processes in the processor 211, various setting values, and the like. The auxiliary storage device 214 also stores data similar to that of the culture solution DB 143.

[0030] The communication interface 215 is an interface for the culture system 200 to communicate via a network NW or the like.

[0031] The control interface 216 is an interface through which the culture control device 210 communicates with each device such as the culture device 220, the absorbance measurement device 230, and the camera 240. The culture control device 210 controls each of the devices via the control interface 216.

[0032] The bus 217 includes a control bus, an address bus, a data bus, etc., and transmits signals exchanged among the various parts of the culture control device 210 .

[0033] The culture device 220 is a device for culturing algae. The culture device 220 includes one or more containers 221. The culture device 220 shown in FIG. 2 includes two containers 221. The containers 221 contain a culture solution. The culture device 220 cultivates algae in the culture solution. The algae and culture solution in the container 221 are not mixed with the algae and culture solution in another container 221. It is preferable that at least a part of the wall and bottom of the container 221 is transparent so that the inside can be seen. The culture device 220 has a function of putting culture solution into the container 221. The culture device 220 also has a function of changing the culture solution in the container 221 to a culture solution with a different composition. The culture device 220 changes the culture solution in the container to a culture solution with a different composition, for example, by replacing the culture solution. The culture device 220 changes the culture solution in the container to a culture solution with a different composition, for example, by adjusting the components of the culture solution in the container. The culture device 220 is an example of a culturing device that cultivates microalgae. The culture device 220 also functions as an example of a changing unit that changes the composition of the culture solution based on the control by the control unit.

[0034] The culture device 220 includes, as an example, one or more compartments 222. Typically, one container 221 corresponds to one compartment 222. However, one container 221 may correspond to multiple compartments 222. Also, multiple containers 221 may correspond to one compartment 222. The culture device 220 shown in FIG. 2 includes two compartments 222. Note that the culture system 200 typically includes multiple culture devices 220 arranged side by side. A user can purchase a compartment 222 within the algae cultivation service. However, the purchase of a compartment 222 in the algae cultivation service does not require that the ownership of the compartment 222 is transferred to the user or that the compartment 222 is leased to the user. What is obtained by purchasing a compartment 222 in the algae cultivation service includes at least a promise or contract that cultivation points corresponding to the amount of carbon dioxide absorption or the degree of cultivation of the algae cultivated in the compartment 222 will be given to the user who purchased the compartment 222. However, the purchase of a plot 222 in an algae farming service may actually involve a transfer of ownership or lease of the plot 222 .

[0035] The culture device 220 is equipped with an absorbance measuring device 230. At least one absorbance measuring device 230 is attached to each container 221 or each section 222 of the culture device 220. The absorbance measuring device 230 is a device that measures the absorbance of the algae liquid in the container 221. The absorbance measuring device 230 includes, for example, an emission unit 231 and a sensor unit 232. The emission unit 231 and the sensor unit 232 are attached, for example, to the outside of a transparent wall surface or bottom surface of the container 221 so as to face each other. The emission unit 231 emits electromagnetic waves such as visible light toward the sensor unit 232. The electromagnetic waves may be monochromatic light. The electromagnetic waves emitted by the emission unit 231 pass through the wall surface of the container 221, the algae liquid in the container 221, and the wall surface of the container 221 facing the wall surface, and are incident on the sensor unit 232. The sensor unit 232 measures the intensity of the incident electromagnetic waves. The absorbance measuring device 230 measures absorbance, for example, based on the intensity ratio of incident light and transmitted light. The incident light is electromagnetic waves emitted by the emission unit 231. The transmitted light is electromagnetic waves incident on the sensor unit 232. The emission unit 231 and the sensor unit 232 may be attached to the inside of the wall or bottom of the container 221. In this case, the wall or bottom to which the emission unit 231 and the sensor unit 232 are attached does not need to be transparent. In this case, the electromagnetic waves emitted by the emission unit 231 pass through the algae liquid in the container 221 and are incident on the sensor unit 232.

[0036] The absorbance is an example of a physical quantity that indicates the degree of growth of the microalgae. Therefore, the absorbance measuring device 230 is an example of a measuring device that measures a physical quantity that indicates the degree of growth of the microalgae.

[0037] The camera 240 photographs the culture device 220. The culture system 220 includes, for example, one or more cameras 240 for each container 221 or each section 222. The culture system 220 may include a camera 240 capable of photographing a plurality of containers 221 or a plurality of sections 222. In this case, the culture system 220 may include one or more cameras 240 for each of the plurality of containers 221 or each of the plurality of sections 222. The camera 240 photographs the culture device 220 and outputs the photographs as image data. Note that a moving image is a type of image.

[0038] The terminal device 300 is, for example, a device used by a user of the algae cultivation service. The terminal device 300 is, for example, a PC (personal computer), a tablet terminal, or a smartphone. The terminal device 300 includes, for example, a processor 310, a ROM 320, a RAM 330, an auxiliary storage device 340, a communication interface 350, an input device 360, and a display device 370. A bus 380 and the like connect these respective units.

[0039] The processor 310 is a central part of a computer that performs various calculations and processes such as calculations and control required for the operation of the terminal device 300. The processor 310 is, for example, a CPU, an MPU, an SoC, a DSP, a GPU, an ASIC, a PLD, or an FPGA. Alternatively, the processor 310 is a combination of a plurality of these. The processor 310 may also be a combination of these with a hardware accelerator. The processor 310 controls each part to realize various functions of the terminal device 300 based on programs such as firmware, system software, and application software stored in the ROM 320 or the auxiliary storage device 340. The processor 310 also executes processes described below based on the programs. A part or all of the programs may be incorporated in the circuitry of the processor 310.

[0040] ROM 320 and RAM 330 are the main storage devices of the computer with processor 310 at its core. ROM 320 is a non-volatile memory used exclusively for reading data. ROM 320 stores, for example, firmware among the above programs. ROM 320 also stores data used by processor 310 when performing various processes.

[0041] The RAM 330 is a memory used for reading and writing data. The RAM 330 is used as a work area for storing data that is temporarily used when the processor 310 performs various processes. The RAM 330 is typically a volatile memory.

[0042] The auxiliary storage device 340 is an auxiliary storage device of a computer with the processor 310 as its core. The auxiliary storage device 340 is, for example, an EEPROM, a HDD, or a flash memory. The auxiliary storage device 340 stores, for example, system software and application software among the above programs. The auxiliary storage device 340 also stores data used by the processor 310 in performing various processes, data generated by the processes in the processor 310, various setting values, and the like.

[0043] The programs stored in the ROM 320 or the auxiliary storage device 340 include terminal applications. The terminal application is application software used to utilize the algae cultivation service. The terminal application may be application software dedicated to the algae cultivation service, or may be general-purpose application software such as a web browser.

[0044] The communication interface 350 is an interface for the terminal device 300 to communicate via a network NW or the like.

[0045] The input device 360 ​​accepts operations by an operator of the terminal device 300. The input device 360 ​​is, for example, a keyboard, a keypad, a touchpad, a mouse, a controller, etc. The input device 360 ​​may also be a device for inputting voice.

[0046] The display device 370 displays a screen for notifying the operator of the terminal device 300 of various kinds of information. The display device 370 is, for example, a display such as a liquid crystal display or an organic EL (electro-luminescence) display. A touch panel can also be used as the input device 360 ​​and the display device 370. That is, a display panel provided in the touch panel can be used as the display device 370, and a pointing device provided in the touch panel by touch input can be used as the input device 360.

[0047] The bus 380 includes a control bus, an address bus, a data bus, etc., and transmits signals exchanged among the various parts of the terminal device 300 .

[0048] The operation of the management system 1 according to the embodiment will be described below with reference to FIG. 3 to FIG. 5. The contents of the process in the following operation description are merely examples, and various processes capable of obtaining similar results can be appropriately used. FIG. 3 is a flowchart showing an example of the process by the processor 110 of the server device 100. The processor 110 executes the process of FIG. 3 based on a program stored in, for example, the ROM 120 or the auxiliary storage device 140. FIG. 4 is a flowchart showing an example of the process by the processor 211 of the culture control device 210. The processor 211 executes the process of FIG. 4 based on a program stored in, for example, the ROM 212 or the auxiliary storage device 214. FIG. 5 is a flowchart showing an example of the process by the processor 310 of the terminal device 300. The processor 310 executes the process of FIG. 5 based on, for example, a program stored in the ROM 320 or the auxiliary storage device 340. The processor 310 executes the process of FIG. 5 based on, for example, a terminal app.

[0049] The processor 310 starts the process shown in FIG. 5 in response to, for example, starting a terminal app. Alternatively, the processor 310 starts the process shown in FIG. 5 in response to accessing a web page of the algae cultivation service using a web browser. It should be noted that in order to use some or all of the functions of the algae cultivation service, it is necessary to be logged in to the algae cultivation service. The terminal device 300 logs in to the algae cultivation service, for example, using a user ID. The login may be automatic, or may require an operation by the operator of the terminal device 300. When the terminal device 300 is currently logged in to the algae cultivation service, it stores at least either the user ID used for the login and the session ID assigned in the login. The user ID or session ID is hereinafter referred to as a "login ID". However, in the following description, for simplicity, a case will be described in which the login ID is a user ID. The user identified by the user ID is hereinafter referred to as a "login user".

[0050] In step ST41 of Fig. 5, the processor 310 of the terminal device 300 generates a screen request. The screen request includes a login ID. The screen request is information requesting the server device 100 to transmit information necessary to display an algae cultivation screen, which will be described later. After generating the screen request, the processor 310 instructs the communication interface 350 to transmit the screen request to the server device 100. Upon receiving this transmission instruction, the communication interface 350 transmits the screen request to the server device 100. The transmitted screen request is received by the communication interface 150 of the server device 100.

[0051] 3, the processor 110 of the server device 100 determines whether or not a screen request has been received by the communication interface 150. If a screen request has not been received, the processor 110 determines No in step ST11 and proceeds to step ST12.

[0052] In step ST12, processor 110 determines whether or not a purchase request has been received by communication interface 150. If a purchase request has not been received, processor 110 determines No in step ST12 and proceeds to step ST13.

[0053] In step ST13, the processor 110 determines whether or not selection information has been received by the communication interface 150. If selection information has not been received, the processor 110 determines No in step ST13 and proceeds to step ST14.

[0054] In step ST14, the processor 110 determines whether or not a change request has been received by the communication interface 150. If a change request has not been received, the processor 110 determines No in step ST14 and proceeds to step ST15.

[0055] In step ST15, processor 110 determines whether or not to execute point processing. If processor 110 determines not to execute point processing, it makes a No determination in step ST15 and proceeds to step ST16.

[0056] In step ST16, processor 110 determines whether or not result information has been received by communication interface 150. If result information has not been received, processor 110 determines No in step ST16 and returns to step ST11. Thus, processor 110 enters a standby state in which it repeats steps ST11 to ST16 until a screen request, purchase request, selection information, change request, or result information is received, or it is determined that point processing is to be executed. The purchase request, selection information, change request, point processing, and result information will be described later.

[0057] If a screen request is received during a standby state in which steps ST11 to ST16 are repeated, processor 110 determines that the result is Yes in step ST11 and proceeds to step ST17.

[0058] In step ST17, processor 110 refers to user DB 141 and acquires user information identified by the user ID included in the screen request received in step ST11. Processor 110 also acquires partition IDs included in purchase list information in the user information. Processor 110 then refers to development DB 142 and acquires partition information associated with each partition ID acquired from the purchase list information.

[0059] In step ST18, the processor 110 generates screen information. The screen information includes information necessary for displaying the algae cultivation screen. The information necessary for displaying the algae cultivation screen includes at least a part of the user information acquired in step ST17, each section ID acquired in step ST17, and at least a part of each section information acquired in step ST17. After generating the screen information, the processor 110 instructs the communication interface 150 to transmit the screen information to the terminal device 300 that has sent the screen request. Upon receiving this transmission instruction, the communication interface 150 transmits the screen information to the terminal device 300. The transmitted screen information is received by the communication interface 350 of the terminal device 300. After processing step ST18, the processor 110 returns to step ST11.

[0060] 5, the processor 310 of the terminal device 300 waits for screen information to be received by the communication interface 350. If screen information has been received, the processor 310 determines that the result is Yes in step ST42, and proceeds to step ST43.

[0061] In step ST43, the processor 310 generates an image corresponding to the algae cultivation screen using the screen information received in ST42. The processor 310 then instructs the display device 370 to display the generated image. Upon receiving the display instruction, the display device 370 displays the algae cultivation screen.

[0062] The algae cultivation screen is, for example, a top screen for an algae cultivation service, and includes, for example, a user information area, a section list area, a quantity input field, and a purchase button.

[0063] The user information area is an area for displaying user information included in the screen information received in step ST42. The user information includes, for example, the number of training points owned by the user.

[0064] The partition list area is an area that displays a list of partitions 222 that the logged-in user has purchased. The partition list area displays information about each partition 222. The partition list area also includes partition selection buttons that correspond to each partition 222 displayed in the partition list area. The partition selection buttons are buttons that the operator operates when instructing the management system 1 to transition to a screen for checking detailed information about the corresponding partition 222 and changing settings for that partition 222.

[0065] The quantity input field is an input field for inputting the number of sections 222 to be newly purchased. The purchase button is a button that the operator operates when instructing the management system 1 to newly purchase the number of sections 222 input in the quantity input field.

[0066] In step ST44, processor 310 determines whether or not to perform processing to purchase partition 222. Processor 310 determines to perform processing to purchase partition 222 when it receives an instruction to purchase partition 222, such as an operation on a purchase button. If processor 310 does not determine to perform processing to purchase partition 222, it determines No in step ST44 and proceeds to step ST45.

[0067] In step ST45, processor 310 determines whether any of the partition selection buttons has been operated. If any of the partition selection buttons has not been operated, processor 310 determines No in step ST45 and returns to step ST44. Thus, processor 310 determines to perform processing to purchase partition 222, or enters a standby state in which steps ST44 and ST45 are repeated until any of the partition selection buttons is operated.

[0068] If processor 310 determines to perform processing to purchase section 222 while in a standby state in which steps ST44 and ST45 are repeated, it determines "Yes" in step ST44 and proceeds to step ST46.

[0069] In step ST46, the processor 310 generates a purchase request. The purchase request includes, for example, a login ID and quantity information. The quantity information is the number entered in the quantity input field. The purchase request is information indicating that the number of sections 222 indicated by the quantity information is to be newly purchased. After generating the purchase request, the processor 310 instructs the communication interface 350 to transmit the purchase request to the server device 100. Upon receiving this transmission instruction, the communication interface 350 transmits the purchase request to the server device 100. The transmitted purchase request is received by the communication interface 150 of the server device 100. After processing step ST46, the processor 310 returns to step ST41.

[0070] On the other hand, if the processor 110 of the server device 100 receives a purchase request while in a standby state in which steps ST11 to ST16 in FIG. 3 are repeated, the processor 110 judges the result to be Yes in step ST12 and proceeds to step ST19.

[0071] In step ST19, the processor 110 determines which sections 222 to allocate to the user identified by the user ID included in the purchase request received in step ST12. The processor 110 determines, for example, to allocate to the user the number of sections 222 included in the purchase request from among the sections 222 not allocated to the user. The processor 110 checks whether each section 222 has been allocated to the user by, for example, referring to the allocation information in the development DB 142.

[0072] In step ST20, the processor 110 performs a payment process for purchasing the section 222. For the payment, various payment methods such as credit cards, debit cards, electronic money, cryptocurrency, BNPL (buy now, pay later) or prepaid payment methods can be used. Note that it is also possible to use training points for the payment for purchasing the section 222.

[0073] In step ST21, the processor 110 updates the development DB 142 to assign the user who purchased the partition 222 to each partition 222 determined in step ST19. That is, the processor 110 associates the user ID included in the purchase request received in step ST12 with the partition ID of each partition 222 determined in step ST19. The processor 110 associates the user ID with the partition ID by writing the user ID in the assignment information associated with the partition ID. After processing step ST21, the processor 110 returns to step ST11.

[0074] If any of the section selection buttons is operated while processor 310 is in a standby state in which steps ST44 and ST45 are repeated, processor 310 determines that the answer is Yes in step ST45, and proceeds to step ST47.

[0075] In step ST47, the processor 310 generates selection information. The selection information includes, for example, a login ID and a selected partition ID. The selected partition ID is the partition ID of the partition 222 corresponding to the operated partition selection button. The selection information is information requesting transmission of information required to display a partition screen, which will be described later. The information required to display the partition screen includes information related to the partition 222 identified by the selected partition ID. After generating the selection information, the processor 310 instructs the communication interface 350 to transmit the selection information to the server device 100. Upon receiving this transmission instruction, the communication interface 350 transmits the selection information to the server device 100. The transmitted selection information is received by the communication interface 150 of the server device 100.

[0076] On the other hand, if the processor 110 of the server device 100 receives selection information while in a standby state in which steps ST11 to ST16 in FIG. 3 are repeated, the processor 110 determines Yes in step ST13 and proceeds to step ST22.

[0077] In step ST22, the processor 110 acquires information about the partition 222 identified by the partition ID included in the selection information received in step ST13. That is, the processor 110 refers to the development DB 142 and acquires partition information associated with the partition ID.

[0078] The processor 110 also controls the camera 240 to capture an image of the section 222. The processor 110 then acquires an image of the section 222 captured by the camera 240.

[0079] Furthermore, the processor 110 refers to the culture medium DB 143 to acquire the culture medium ID and culture medium information of each culture medium.

[0080] In step ST23, the processor 110 generates partition screen information. The partition screen information includes information necessary for displaying the partition screen. The partition screen information includes, for example, the partition information, image, culture solution ID, and culture solution information acquired in step ST22. After generating the partition screen information, the processor 110 instructs the communication interface 150 to transmit the partition screen information to the terminal device 300 that transmitted the selection information. In response to this transmission instruction, the communication interface 150 transmits the partition screen information to the terminal device 300. The transmitted partition screen information is received by the communication interface 350 of the terminal device 300. After processing step ST23, the processor 110 returns to step ST11.

[0081] The processor 110 works in cooperation with the communication interface 150 to transmit images of the section 222 to the terminal device 300, thereby functioning as an example of a transmission unit that transmits images of the cultivation device to a terminal device used by the owner.

[0082] 5, the processor 310 of the terminal device 300 waits for the partition screen information to be received by the communication interface 350. If the partition screen information is received, the processor 310 determines "Yes" in step ST48 and proceeds to step ST49.

[0083] In step ST49, the processor 310 generates an image corresponding to the partition screen, using the partition screen information received in ST48. Then, the processor 310 instructs the display device 370 to display this generated image. In response to the display instruction, the display device 370 displays the partition screen.

[0084] The partition screen is a screen that displays details about the partition 222 identified by the selected partition ID. The partition screen includes, for example, a partition information area, a partition image, a culture medium selection area, a culture medium change button, and a back button.

[0085] The partition information area is an area for displaying the partition information included in the partition screen information received in step ST48.

[0086] The partition image displays an image included in the partition screen information received in step ST48. The image may be updated in real time. The image may also be a real-time moving image.

[0087] The culture solution selection area is an area that displays a list of culture solutions that can be used to grow algae and a description of each culture solution. The description may include, for example, the name, price, and characteristics of the culture solution. The description may also include the composition of the culture solution. In addition, the culture solution selection area allows a user to select one culture solution by operating the input device 360.

[0088] The culture medium change button is a button that is operated when instructing the management system 1 to change the culture medium in the container 221 corresponding to the section 222 whose details are displayed on the section screen to the culture medium selected in the culture medium selection area.

[0089] The back button is a button that is operated when returning from the partition screen to the algae cultivation screen.

[0090] In step ST50, processor 310 determines whether or not the back button has been operated. If the back button has not been operated, processor 310 determines No in step ST50 and proceeds to step ST51.

[0091] In step ST51, processor 310 determines whether or not to change the culture medium. For example, processor 310 determines that the culture medium is to be changed when the culture medium change button is operated with the culture medium selected in the culture medium selection area. If processor 310 does not determine that the culture medium is to be changed, processor 310 determines No in step ST51 and returns to step ST50. Thus, processor 310 enters a standby state in which it repeats steps ST50 and ST51 until the back button is operated or processor 310 determines that the culture medium is to be changed.

[0092] If the back button is operated during a standby state in which steps ST50 and ST51 are repeated, processor 310 determines that the result is Yes in step ST50, and returns to step ST41.

[0093] If processor 310 determines to change the culture medium when in a standby state in which steps ST50 and ST51 are repeated, processor 310 determines Yes in step ST51 and proceeds to step ST52.

[0094] In step ST52, the processor 310 generates a change request. The change request includes, for example, a login ID, a selected section ID, and a culture medium ID. The culture medium ID is the culture medium ID of the culture medium selected in the culture medium selection area. The change request is information requesting that the culture medium in the container 221 corresponding to the section 222 identified by the selected section ID be changed to the culture medium identified by the culture medium ID. After generating the change request, the processor 310 instructs the communication interface 350 to transmit the change request to the server device 100. Upon receiving this transmission instruction, the communication interface 350 transmits the change request to the server device 100. The transmitted change request is received by the communication interface 150 of the server device 100. After processing step ST52, the processor 310 returns to step ST50.

[0095] On the other hand, if a change request is received while the processor 110 of the server apparatus 100 is in a standby state in which steps ST11 to ST16 in FIG. 3 are repeated, the processor 110 judges the result to be Yes in step ST14 and proceeds to step ST24.

[0096] In step ST24, the processor 110 refers to the culture solution DB 143 and obtains a price associated with the culture solution ID included in the change request received in step ST14. The price indicates the amount of the fee for changing the culture solution. The processor 110 performs a payment process for the amount. Various payment methods can be used for the payment. It is also possible to use cultivation points to pay the fee for changing the culture solution.

[0097] In step ST25, the processor 110 updates the cultivation DB 142 to store the culture medium used in the partition 222 identified by the partition ID included in the change request received in step ST14. That is, the processor 110 changes the culture medium ID in the culture medium information associated with the partition ID to the culture medium ID included in the change request.

[0098] In step ST26, the processor 110 generates change information. The change information includes, for example, the partition ID included in the change request received in step ST14 and the culture medium ID included in the change request. The change information is information instructing the partition 222 identified by the partition ID to be in a state in which the culture medium identified by the culture medium ID is contained in the container 221 corresponding to the partition 222. After generating the change information, the processor 110 instructs the communication interface 150 to transmit the change information to the culture control device 210. Upon receiving this transmission instruction, the communication interface 150 transmits the change information to the culture control device 210. The transmitted change information is received by the communication interface 215 of the culture control device 210. After processing step ST26, the processor 110 returns to step ST11.

[0099] 4, the processor 211 of the culture control device 210 determines whether or not change information has been received by the communication interface 215. If change information has not been received, the processor 211 determines No in step ST31 and proceeds to step ST32.

[0100] In step ST32, the processor 211 determines whether or not a measurement request has been received by the communication interface 215. If a measurement request has not been received, the processor 211 determines No in step ST32 and returns to step ST31. Thus, the processor 211 goes into a standby state in which steps ST31 and ST32 are repeated until change information or a measurement request is received. The measurement request will be described later.

[0101] If the processor 211 receives change information while in a standby state in which steps ST31 and ST32 are repeated, the processor 211 determines that the answer is Yes in step ST31 and proceeds to step ST33.

[0102] In step ST33, the processor 211 controls the culture device 220 to put the culture medium identified by the culture medium ID included in the change information received in step ST31 into the container 221. The container 221 is the container 221 corresponding to the partition 222 identified by the partition ID included in the change information. If the container 221 already contains culture medium, the culture device 220 changes it to the culture medium identified by the culture medium ID. If the container 221 does not contain culture medium, the culture device 220 puts the culture medium identified by the culture medium ID. After processing step ST33, the processor 211 returns to step ST31.

[0103] As described above, the server device 100 controls the culture device 220 via the culture control device 210. Therefore, by performing the processes of steps ST14 and ST26, the processor 110 functions as an example of a control unit that determines the composition of the culture solution in which the microalgae are cultured based on instructions from the owner, and controls the culture device to change the culture solution in the culture device to the composition.

[0104] The processor 110 of the server device 100 executes point processing for each section 222 every time a predetermined time T1 has elapsed. The point processing is a process of granting points to a user assigned to the section 222 in accordance with the amount of carbon dioxide absorption or the growth level of the algae in the section 222. The processor 110, for example, executes point processing for all sections 222 at once. Alternatively, the timing of point processing may differ for each section 222. The timing of point processing is when a predetermined time T1 has elapsed since the previous point processing. The processor 110 determines to execute point processing if it is time to execute point processing for at least any section 222.

[0105] If processor 110 determines to execute the point process when in a standby state in which steps ST11 to ST16 in FIG. 3 are repeated, it determines Yes in step ST15 and proceeds to step ST27.

[0106] In step ST27, the processor 110 generates a measurement request. The measurement request includes the partition ID of the target for which point processing is to be executed. The partition ID may be one or more. The measurement request is information that instructs measuring absorbance for the partition ID. After generating the measurement request, the processor 110 instructs the communication interface 150 to transmit the measurement request to the culture control device 210. Upon receiving this transmission instruction, the communication interface 150 transmits the measurement request to the culture control device 210. The transmitted measurement request is received by the communication interface 215 of the culture control device 210. After processing step ST27, the processor 110 returns to step ST11.

[0107] On the other hand, if the processor 211 of the culture control device 210 receives a measurement request while in a standby state in which steps ST31 and ST32 in FIG. 4 are repeated, it determines Yes in step ST32 and proceeds to step ST34.

[0108] In step ST34, the processor 211 controls the absorbance measuring device 230 to measure the absorbance of the algae liquid in the container 221. The container 221 in question is the container 221 that corresponds to the section 222 identified by the section ID included in the measurement request received in step ST32. If the measurement request includes multiple section IDs, the processor 211 measures the absorbance of the algae liquid in the container 221 for each section ID.

[0109] In step ST35, the processor 211 generates result information. The result information includes each partition ID included in the measurement request received in step ST32 and the measurement result in step ST34 for each partition ID. After generating the result information, the processor 211 instructs the communication interface 215 to transmit the result information to the server device 100. Upon receiving this transmission instruction, the communication interface 215 transmits the result information to the server device 100. The transmitted result information is received by the communication interface 150 of the server device 100. After processing of step ST35, the processor 211 returns to step ST31.

[0110] On the other hand, if the processor 110 of the server device 100 receives result information while in a standby state in which steps ST11 to ST16 in FIG. 3 are repeated, the processor 110 determines Yes in step ST16 and proceeds to step ST28.

[0111] In step ST28, the processor 110 determines points to be awarded for each block ID included in the result information received in step ST16. The processor 110 determines the points using, for example, the amount of carbon dioxide absorbed by the algae (hereinafter referred to as the "amount of carbon dioxide absorbed").

[0112] The amount of carbon dioxide absorption can be calculated, for example, by the following formula. This is because the amount of carbon dioxide absorption by the same amount of algae is constant. (Amount of carbon dioxide absorbed [g]) = (algae concentration [g / liter]) × (liquid volume [liter]) × (C / B ratio) (1) Here, the liquid volume is the volume of the algae liquid in section 222. The C / B ratio is an experimental value of the ratio of the amount of carbon dioxide absorption contained in the biomass. Here, it is an experimental value of the ratio of the amount of carbon dioxide absorption contained in the algae. The C / B ratio is determined, for example, from the amount of carbon dioxide fixation and the algae concentration. Therefore, the C / B ratio indicates the ratio of the amount of carbon dioxide fixation that can be absorbed by microalgae to the mass of the microalgae. Therefore, the value of the C / B ratio indicates the amount of carbon dioxide absorption that can be absorbed by unit mass (1 g) of microalgae. One example of the value of the C / B ratio is 2.02.

[0113] The algae concentration can be calculated using the following formula: (Algae concentration [g / liter]) = (OD (optical density) value) × (constant C1) (2) Here, the OD value is a value indicating absorbance. The constant C is a constant obtained from a calibration curve of the OD value and the algae concentration. As an example, the constant C is 0.5. Note that both the algae concentration and the OD value increase in value according to the degree of algae growth. Therefore, both the algae concentration and the OD value indicate the degree of algae growth.

[0114] Processor 110 calculates the number of points to be awarded, for example, using the following formula. (Number of points) = (amount of carbon dioxide absorbed) × (predetermined coefficient C2) (3)

[0115] Since the C / B ratio is a fixed value, the processor 110 may calculate the number of points using the following formula when the liquid volume is fixed. (Number of points) = (algae concentration) × (predetermined coefficient C3) (4)

[0116] Moreover, equations (1) to (3) can be summarized as follows: (Number of points) = (OD value) × (constant C1) × (liquid volume) × (C / B ratio) × (predetermined coefficient C2) (5)

[0117] In equation (5), the constant C and the C / B ratio are fixed values. Therefore, processor 110 can simplify the equation for calculating the number of points by omitting at least one of the constant C and the C / B ratio from the equation for calculating the number of points. By simplifying the equation for calculating the number of points, the amount of calculation required to determine the number of points can be reduced. Processor 110 calculates the number of points, for example, using the following equation, which omits the constant C and the C / B ratio. (Number of points) = (OD value) × (liquid volume) × (predetermined coefficient C4) (6)

[0118] When the amount of liquid is fixed, the processor 110 may calculate the number of points according to the following formula: (Number of points) = (OD value) × (predetermined coefficient C4) (7)

[0119] The processor 110 may calculate the points using other formulas, provided that the formula is such that the higher the OD value, algae concentration, or carbon dioxide absorption amount, the higher the points.

[0120] The processor 110 may also calculate the number of points using a table. The table is, for example, a table that converts the OD value, algae concentration, or carbon dioxide absorption amount into a number of points. The table is a conversion table in which the number of points increases as the OD value, algae concentration, or carbon dioxide absorption amount increases.

[0121] As described above, processor 110 performs the process of step ST28, thereby functioning as an example of an incentive determination section that determines the quantity of incentives.

[0122] In step ST29, the processor 110 performs the following process for each partition ID included in the result information received in step ST16. The processor 110 updates the user DB141 and grants points to the owner of the partition 222 identified by the partition ID. For this purpose, the processor 110 identifies the owner of the partition 222 for which points have been determined in step ST28. That is, the processor 110 refers to the development DB142 and acquires the user ID associated with the partition ID of the partition 222. The user identified by the user ID is the owner. The processor 110 rewrites the point information associated with the user ID in the user DB141 and increases the points indicated by the point information by the points determined in step ST28. The processor 110 also rewrites the partition point information associated with the partition ID in the partition DB143 and increases the points indicated by the partition point information by the points determined in step ST28. After the process of step ST29, the processor 110 returns to step ST11.

[0123] As described above, processor 110 performs the process of step ST29, thereby functioning as an example of a granting section that grants the amount of incentive determined in step ST28 to the owner of the breeding device.

[0124] The management system 1 of the embodiment cultivates algae using a culture device 220. The management system 1 of the embodiment then grants points to the user who is the owner of the section 222 of the culture device 220, depending on the amount of carbon dioxide absorption or the degree of cultivation of the algae. In this way, a user who purchases a section 222 can earn points, and it is expected that the number of people purchasing the section 222 will increase. Therefore, it is expected that the management system 1 of the embodiment can increase the number of owners, that is, the people who participate in cultivating algae.

[0125] The management system 1 of the embodiment also includes a culture device 220. The management system 1 cultivates algae using the culture device 220. Therefore, the user does not need to cultivate the algae himself. Therefore, the user does not need to prepare cultivation equipment. Furthermore, the user does not need to have knowledge about algae. Therefore, it is considered that the management system 1 of the embodiment can increase the number of owners, i.e., people who participate in algae cultivation.

[0126] The management system 1 of the embodiment also measures the absorbance of the algae liquid. The management system 1 of the embodiment then uses the absorbance to calculate at least one of the amount of carbon dioxide absorption by the algae and the algae concentration. Furthermore, the management system 1 of the embodiment uses the amount of carbon dioxide absorption or the algae concentration to determine points to be awarded to the owner of the section 222. In this way, by using the absorbance, the management system 1 of the embodiment can reduce the amount of calculation required for awarding points.

[0127] In addition, the management system 1 of the embodiment allows the owner of the section 222 to determine the composition of the culture solution. Therefore, the owner can increase the production amount of algae by changing the culture solution. In addition, the owner can determine the main use of the algae by changing the culture solution.

[0128] In addition, the management system 1 of the embodiment uses a culture solution selected from a plurality of types of culture solutions whose compositions are predetermined. The owner of the section 222 can select a culture solution from culture solutions whose compositions are predetermined, and therefore does not need to have knowledge about the composition of the culture solution.

[0129] In addition, the management system 1 of the embodiment is configured to know the main use of the algae cultivated in each culture solution. Therefore, the owner of the section 222 can easily decide which culture solution to use by checking the use.

[0130] Furthermore, the management system 1 of the embodiment transmits an image of the section 222 to the owner of the section 222. This allows the owner to see the state of the section 222.

[0131] Furthermore, according to the management system 1 of the embodiment, the culture device 220 includes a plurality of sections 222. Therefore, more people can become owners of the sections 222.

[0132] The above embodiment can be modified as follows. The management system of the embodiment may include a transmittance measuring device instead of the absorbance measuring device 230. The transmittance measuring device measures the transmittance of the algae liquid in the container 221. The culture control device 210 or the server device 100 uses the transmittance to determine the absorbance. The processor 110 calculates the number of points using the absorbance. The transmittance is an example of a physical quantity that indicates the degree of growth of the microalgae. Therefore, the transmittance measuring device is an example of a measuring device that measures a physical quantity that indicates the degree of growth of the microalgae. Furthermore, the transmittance measuring device and the culture control device 210 or the server device 100 that determines the absorbance from the transmittance are examples of measuring devices that measure a physical quantity that indicates the degree of growth of the microalgae.

[0133] The management system of the embodiment may include a concentration measuring device instead of the absorbance measuring device 230. The concentration measuring device measures the algae concentration of the algae liquid in the container 221. The processor 110 calculates the points using the algae concentration. Note that the algae concentration is an example of a physical quantity that indicates the degree of growth of microalgae. Therefore, the concentration measuring device is an example of a measuring device that measures a physical quantity that indicates the degree of growth of microalgae.

[0134] The period during which a person can become the owner of a parcel 222 by purchasing the parcel 222 may be limited.

[0135] In the above embodiment, the management system 1 grants training points to the user. However, the management system 1 may grant cash, cryptocurrency, securities, etc., instead of training points. In this case, the processor 110 of the server device 100 calculates, in step ST28, an amount of, for example, cash, cryptocurrency, or securities, instead of the number of points. Each of the cash, cryptocurrency, securities, etc., is an example of an incentive to be granted to the owner of the section 222.

[0136] The culture medium may also be purchased when purchasing the section 222. In this case, if the container 221 corresponding to the section 222 does not contain culture medium, the management system 1 can fill the container 221 with the culture medium to be purchased without changing the culture medium.

[0137] The server device 100 may also function as the culture control device 210 .

[0138] In the above embodiment, a part of the processing performed by the server device 100 may be executed by the culture control device 210 or the terminal device 300. In the above embodiment, a part of the processing performed by the culture control device 210 may be executed by the server device 100. In the above embodiment, a part of the processing performed by the terminal device 300 may be executed by the server device 100.

[0139] Each device in the embodiment may be made up of multiple devices.

[0140] The processor 110, the processor 211, or the processor 310 may implement part or all of the processing implemented by the program in the above-described embodiments by a hardware configuration of a circuit.

[0141] The program for implementing the process of the embodiment is transferred in a state in which it is stored in, for example, a non-transitory computer-readable storage medium in the device. However, the device may be transferred in a state in which the program is not stored therein. The program may then be transferred separately and written to the device. The program may be transferred in this case by, for example, recording it in a removable non-transitory computer-readable storage medium, or by downloading it via a network such as the Internet or a LAN.

[0142] Although the embodiment of the present invention has been described above, it is merely an example and does not limit the scope of the present invention. The embodiment of the present invention can be implemented in various forms without departing from the gist of the present invention. [Explanation of symbols]

[0143] 1 Management System 100 Server Devices 110,211,310 processors 120,212,320 ROM 130,213,330 RAM 140,214,340 Auxiliary storage 141 User DB 142 Development DB 143 Culture solution DB 150,215,350 Communication Interface 160,217,380 Bus 200 Culture System 210 Culture control device 216 Control Interface 220 Culture equipment 221 Container 222 Section 230 Absorbance measuring device 231 Radiation section 232 Sensor section 240 Camera 300 Terminal Equipment 360 Input Devices 370 Display Devices

Claims

1. The present invention includes a cultivation device for cultivating microalgae, a measuring device for measuring a physical quantity indicating a degree of cultivation of the microalgae, and an incentive granting device, The incentive granting device includes: an incentive determination unit that uses the physical quantity to determine the number of incentives according to the amount of carbon dioxide absorption or the growth degree of the microalgae; an incentive granting unit that grants the amount of the incentive to the owner of the breeding device; and an incentive granting system.

2. The physical quantity is the absorbance of the algae liquid containing the microalgae, 2. The incentive granting system of claim 1, wherein the incentive determination unit at least one of calculates the amount of carbon dioxide absorption using the absorbance and calculates a concentration of the microalgae in the algal juice as the degree of growth using the absorbance, and determines the quantity of the incentive using the amount of carbon dioxide absorption or the concentration.

3. The incentive granting device includes: Determine the composition of the culture solution for culturing the microalgae based on the owner's instructions; A control unit that controls the culture device to change the composition of the culture solution in the culture device to the composition, The incentive granting system of claim 1 , wherein the cultivation device includes a change unit that changes the composition of the culture solution based on control by the control unit.

4. The incentive granting system of claim 3, wherein the control unit determines the composition of the culture solution in which the microalgae are cultured to be the composition of the type of culture solution selected in the instruction based on the instruction to select from among multiple types of culture solutions whose compositions have been determined in advance.

5. 2. The incentive granting system according to claim 1, wherein the incentive granting device further comprises a transmission unit that transmits a photographed image of the development device to a terminal device used by the owner.

6. The growing device comprises a plurality of compartments, The incentive granting system of claim 1 , wherein the owner is an owner of the parcel.

7. The incentive granting system according to claim 1 , wherein the incentive is a point.

8. an incentive determination unit that uses a physical quantity indicating a growth level of the microalgae grown by the growth device to determine an amount of incentive according to the amount of carbon dioxide absorption by the microalgae or the growth level; An incentive granting device comprising: a granting unit that grants the incentive of the quantity to an owner of the development device.

9. A processor included in the incentive granting device, an incentive determination unit that uses a physical quantity indicating a growth level of the microalgae grown by the growth device to determine an amount of incentive according to the amount of carbon dioxide absorption by the microalgae or the growth level; A program that functions as an awarding unit that awards the quantity of the incentive to the owner of the breeding device.

10. Cultivating microalgae using a cultivation device Measure a physical quantity indicating the degree of growth of the microalgae, Using the physical quantity, a quantity of incentives is determined according to the amount of carbon dioxide absorbed by the microalgae or the degree of growth; An incentive granting method for granting the incentive in the quantity to the owner of the breeding device.

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