Automatic-mixing nutrient solution supply system for shitake mushrooms

Abstract

The present invention relates to an automatic-mixing nutrient solution supply system for shitake mushrooms, and more specifically the system comprising: a plurality of storage tanks respectively storing different undiluted solutions; a mixing tank which is provided immediately under the plurality of storage tanks, is in communication with the plurality of storage tanks via pipes, and is provided to manufacture a mixed nutrient solution by mixing the different undiluted solutions; a plurality of solenoid valves which control the flow of the undiluted solutions in the plurality of storage tanks; and a cultivation unit which is provided to be spaced apart from the mixing tank and has a plurality of sawdust media to which mushroom spores are sprayed, wherein when the plurality of solenoid valves are opened, the undiluted solutions respectively stored in the plurality of storage tanks flow to the mixing tank due to the gravity.

Description

Automatic mixing nutrient solution supply system for shiitake mushrooms

[0001] The present invention relates to an automatic mixing nutrient solution supply system for shiitake mushrooms, and more specifically, to a system that automatically mixes nutrient solution based on data on the state of the nutrient solution measured through sensors for electrical conductivity (EC), hydrogen ion concentration (pH), and temperature in a mixing tank, and supplies the nutrient solution to crops while maintaining it uniformly under optimal conditions.

[0002] Generally, hydroponics is a cultivation method that provides crops with a nutrient solution (hereinafter referred to as "nutrient solution") containing the nutrients necessary for crop growth in order to maximize crop yield. In other words, hydroponics refers to a plant cultivation method that supplies a nutrient solution containing essential elements required for plant growth according to a set composition ratio for plant growth after planting or sowing plants in a medium using various methods.

[0003] In hydroponic farming, an automatic nutrient solution supply device is used to automatically supply nutrient solution to crops by mixing raw water alone or raw water and fertilizer solution in an appropriate ratio.

[0004] Depending on the method of supplying the fertilizer solution, automatic nutrient solution supply devices can be broadly categorized into mixing tank-type automatic nutrient solution supply devices and direct injection-type automatic nutrient solution supply devices. Mixing tank-type automatic nutrient solution supply devices mix fertilizer solution and raw water at a certain ratio in a mixing tank and supply the mixed nutrient solution to the crops. Direct injection-type automatic nutrient solution supply devices directly inject an appropriate amount of fertilizer solution into the supply pipe where the raw water is supplied, mixing it within the pipe during transport, and then supplying it to the crops.

[0005] Meanwhile, in hydroponic farming, failure to accurately control the total ion concentration (EC) and acidity (pH) of the nutrient solution, without oversupply or undersupply, can lead to failure of the hydroponic system and the inability to grow hydroponic crops. Therefore, careful management is essential to ensure an appropriate nutrient supply. Recently, various studies have been conducted on automatic nutrient solution supply devices that can precisely control the total ion concentration (EC) and acidity of the nutrient solution.

[0006] In addition, automatic nutrient solution supply devices can control the supply area, supply time, and mixing ratio of nutrient solutions, but when supplying various types of nutrient solutions to multiple targets by setting groups, they have the disadvantage of not being able to accurately mix them in the appropriate ratio required for each group and supply the mixed nutrient solutions differentially to multiple locations over a set period of time, and the system has the disadvantage of being large in volume and weight and inconvenient to operate, so research is being conducted from various angles.

[0007] The present invention, as an alternative to the above problem, has completed the invention of an automatic mixing nutrient solution supply system for shiitake mushrooms, which is relatively small in volume and weight and supplies the nutrient solution to crops while maintaining it uniformly under optimal conditions by automatically mixing the nutrient solution based on data on the state of the nutrient solution measured through sensors for electrical conductivity (EC), hydrogen ion concentration (pH) and temperature in a mixing tank.

[0008] The purpose of the present invention is to provide an automatic mixing nutrient solution supply system for shiitake mushrooms, which automatically mixes the nutrient solution based on data on the state of the nutrient solution measured through sensors for electrical conductivity (EC), hydrogen ion concentration (pH) and temperature in a mixing tank and supplies the nutrient solution to crops while maintaining it uniformly under optimal conditions.

[0009] The technical problems to be solved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

[0010] In order to solve the above problem, the present invention comprises a plurality of storage tanks in which different raw solutions are stored, a mixing tank provided directly below the plurality of storage tanks and connected to the plurality of storage tanks through a pipe, in which the different raw solutions are mixed to produce a mixed nutrient solution, a plurality of solenoid valves for controlling the flow of the raw solutions in the plurality of storage tanks, and a cultivation unit provided spaced apart from the mixing tank and having a plurality of sawdust media on which mushroom spores are sprayed, wherein when the plurality of solenoid valves are opened, the raw solutions respectively stored in the plurality of storage tanks flow to the mixing tank by gravity.

[0011] A mixing tank including an electrical conductivity sensor, a hydrogen ion concentration sensor, and a temperature sensor that measure at least one of electrical conductivity, hydrogen ion concentration, and temperature of a mixed nutrient solution; a liquid fertilizer solution storage tank A, a liquid fertilizer solution B storage tank, and a pH solution storage tank connected to the mixing tank through a first pipe, a second pipe, and a third pipe and connected to a first solenoid valve, a second solenoid valve, and a third solenoid valve, respectively; and an external case including a pump that provides power to move the mixed nutrient solution discharged from the mixing tank to a supply unit; a supply unit connected to the mixing tank through a fifth pipe and a sixth pipe and supplying the mixed nutrient solution to each of the plurality of sawdust media; And a control unit that controls at least one of the first solenoid valve, the second solenoid valve, the third solenoid valve, and the fourth solenoid valve of the sixth pipe that supplies water from the mixing tank to the crop cultivation unit based on measurement data measured from the electric conductivity sensor, the hydrogen ion concentration sensor, and the temperature sensor to control the supply amount of each liquid from the mixing tank to the storage tank; wherein the supply unit is characterized in that it includes a plurality of needle pins that are each inserted into the plurality of sawdust beds.

[0012] The above mixing tank further includes a stirrer and an auxiliary heater for heating inside, and the control unit controls the auxiliary heater based on temperature data measured from the electric conductivity sensor, the hydrogen ion concentration sensor, and the temperature sensor, and controls the stirrer to operate simultaneously with the supply of the liquid fertilizer raw solution A, the liquid fertilizer raw solution B, the pH solution, and the raw water.

[0013] The above liquid fertilizer raw material A storage tank, the liquid fertilizer raw material B storage tank, and the pH solution storage tank are all arranged above the mixing tank, so that each liquid is supplied to the mixing tank without power.

[0014] It is characterized by further comprising a local PC that is connected to the control unit so as to be able to communicate with it via wire or wirelessly and monitor the operation of at least one of the mixing tank, the liquid fertilizer raw material A storage tank, the liquid fertilizer raw material B storage tank, the pH solution storage tank, the supply unit, and the pump; and a cloud server that is connected to the local PC and the mobile terminal so as to be able to communicate with them over an Internet network, and transmits operation information transmitted from the local PC to the mobile terminal and transmits generated information generated from the mobile terminal to the local PC.

[0015] The present invention relates to an automatic mixing nutrient solution supply system for shiitake mushrooms, which automatically mixes the nutrient solution based on data on the state of the nutrient solution measured through sensors for electrical conductivity (EC), hydrogen ion concentration (pH), and temperature in a mixing tank, thereby supplying the nutrient solution to crops while maintaining it uniformly under optimal conditions, thereby maintaining constant production and reducing labor costs.

[0016] The effects of the present invention are not limited to the effects mentioned above, and effects of the present invention not mentioned herein will be clearly understood by those skilled in the art from the description below.

[0017] FIG. 1 is a schematic diagram showing an automatic mixing nutrient solution supply system for shiitake mushrooms according to one embodiment of the present invention.

[0018] FIG. 2 is a block diagram illustrating control by a control unit of an automatic mixing nutrient solution supply system for shiitake mushrooms according to one embodiment of the present invention.

[0019] Figure 3 is a control flowchart of an automatic mixing nutrient solution supply system for shiitake mushrooms according to one embodiment of the present invention.

[0020] The terms used in this specification will be briefly explained, and the present invention will be described in detail.

[0021] The terms used in this invention have been selected from widely used, common terms, taking into account their functions. However, these terms may vary depending on the intentions of those skilled in the art, precedents, the emergence of new technologies, etc. Therefore, the terms used in this invention should be defined based on their meaning and the overall content of the invention, rather than simply their names.

[0022] When a part of a specification is said to “include” a component, this does not mean that it excludes other components, but rather that it may include other components, unless otherwise stated.

[0023] Below, with reference to the attached drawings, embodiments of the present invention are described in detail so that those skilled in the art can easily implement the invention. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein.

[0024] Specific details, including the problems to be solved, means of solving them, and the effects of the invention, are included in the embodiments and drawings described below. The advantages and features of the present invention, and methods for achieving them, will become clearer with reference to the embodiments described below in detail, along with the accompanying drawings.

[0025] Hereinafter, the present invention will be described in more detail with reference to the attached drawings.

[0026] FIG. 1 is a block diagram showing an automatic mixing nutrient solution supply system for shiitake mushrooms according to one embodiment of the present invention, and FIG. 2 is a block diagram showing control by a control unit of an automatic mixing nutrient solution supply system for shiitake mushrooms according to one embodiment of the present invention.

[0027] Referring to FIGS. 1 and 2, the automatic mixed nutrient solution supply system for shiitake mushrooms of the present invention comprises a plurality of storage tanks (110, 120, 130) in which different raw solutions are stored, a mixing tank (140) provided directly below the plurality of storage tanks (110, 120, 130) and connected to the plurality of storage tanks (110, 120, 130) through a pipe, in which the different raw solutions are mixed to produce a mixed nutrient solution, a plurality of solenoid valves (V1, V2, V3) for controlling the flow of the raw solutions in the plurality of storage tanks (110, 120, 130), and a cultivation section (300) provided spaced apart from the mixing tank (140) and having a plurality of sawdust media (310) on which mushroom spores are sprayed, and the plurality of solenoid valves (V1, V2, When V3) is opened, the original liquid stored in each of the plurality of storage tanks (110, 120, 130) flows to the mixing tank (140) by gravity.

[0028] More specifically, the present invention comprises a mixing tank (140) including an electrical conductivity (EC) sensor (141), a hydrogen ion (pH) concentration sensor (143), and a temperature sensor (142) for measuring at least one of electrical conductivity, hydrogen ion concentration, and temperature of a mixed nutrient solution; a liquid fertilizer solution storage tank (110), a liquid fertilizer solution B storage tank (120), and a pH solution storage tank (130) connected to the mixing tank (140) through a first pipe (L1), a second pipe (L2), and a third pipe (L3) and connected to a first solenoid valve (V1), a second solenoid valve (V2), and a third solenoid valve (V3), respectively; and an external case (100) including a pump (160) for providing power to move the mixed nutrient solution discharged from the mixing tank (140) to a supply unit (400); A supply unit (400) connected to the fifth pipe (L5) and the sixth pipe (L6) in the above mixing tank (140) to supply the mixed nutrient solution to each of the plurality of sawdust media (310); And the control unit (200) controls at least one of the first solenoid valve (V1), the second solenoid valve (V2), the third solenoid valve (V3) and the fourth solenoid valve (V4) of the sixth pipe (L6) supplied from the mixing tank (140) to the crop cultivation unit (300) based on measurement data measured from the electric conductivity (EC) sensor (141), the hydrogen ion (pH) concentration sensor (143) and the temperature sensor (142) to control the supply amount of each liquid from the mixing tank (140) to the storage tanks (110, 120, 130), and the supply unit provides an automatic mixed nutrient solution supply system for shiitake mushrooms including a plurality of needle pins (410) each inserted into the plurality of sawdust substrates.

[0029] The above mixing tank (140) may be connected to a fourth pipe (V4) that supplies raw water (170). In addition, the mixing tank (140) may further include an agitator (145) and an auxiliary heater (144) for heating therein.

[0030] The above mixed nutrient solution is preferably manufactured by supplying each liquid to the mixing tank (140) through the first pipe (L1), the second pipe (L2), and the third pipe (L3) from the liquid fertilizer A storage tank (110), the liquid fertilizer B storage tank (120), and the pH solution storage tank (130), in which the liquid fertilizer A, the liquid fertilizer B, and the pH solution are individually stored, and supplying the raw water (170) connected to the mixing tank (140) through the fourth pipe (L4), and uniformly mixing by the stirrer (145) in the mixing tank (140) while maintaining a constant temperature by the auxiliary heater (144) in the mixing tank (140).

[0031] It is preferable that the first solenoid valve (V1), the second solenoid valve (V2), and the third solenoid valve (V3) control the supply amounts of the liquid fertilizer raw solution A, the liquid fertilizer raw solution B, and the pH solution supplied to the mixing tank (140). For example, the liquid solution A may be potassium, and the liquid solution B may be sugar.

[0032] It is preferable that the above liquid fertilizer raw material A storage tank (110), the above liquid fertilizer raw material B storage tank (120), and the above pH solution storage tank (130) are all placed above the mixing tank (140), so that each liquid is supplied to the mixing tank (140) without power by the effect of the drop.

[0033] The above mixed nutrient solution is discharged by the fifth pipe (L5) connected to the lower portion of the mixing tank (140) and the pump (160) located at the lower portion of the mixing tank (140), and is supplied to the plurality of needle pins (410) through the supply unit (400) connected by the sixth pipe (L6), and the plurality of needle pins (410) are inserted into each of the plurality of sawdust mediums (310), so that the mixed nutrient solution supplied through the needle pins (410) is supplied to the sawdust medium (310).

[0034] The above sixth pipe (L6) includes a fourth solenoid valve (V4). In addition, it is preferable that the fourth solenoid valve (V4) regulates the amount of mixed nutrient solution discharged through the pump (160) supplied to the supply unit (400) through the sixth pipe (L6).

[0035] The above outer case (100) further includes a cooling and heat retention device (150) for temperature control within the outer case. In addition, the outer case (100) may be a showcase refrigerator, and wheels are provided at the bottom of the outer case (100) to enable movement.

[0036] The above supply unit (400) and cultivation unit (300) may be located within the crop cultivation room on the left or right side of the outer case (100).

[0037] The above control unit (200) can be installed on the left or right side of the outer case (100).

[0038] The control unit (200) preferably controls the auxiliary heater (144) based on temperature data measured from the electric conductivity (EC) sensor (141), the hydrogen ion (pH) concentration sensor (143), and the temperature sensor (142), and controls the agitator (145) to operate simultaneously with the supply of the liquid fertilizer raw solution A, the liquid fertilizer raw solution B, the pH solution, and the raw water.

[0039] In addition, the automatic mixing nutrient solution supply system for shiitake mushrooms of the present invention further includes a local PC (210) that is connected to the control unit (200) to enable wired or wireless communication so as to monitor the operation of at least one of the mixing tank (140), the liquid fertilizer A storage tank (110), the liquid fertilizer B storage tank (120), the pH solution storage tank (130), the supply unit (400), and the pump (160); and a cloud server (220) that is connected to the local PC (210) and a mobile terminal (230) so as to enable communication over an Internet network, and transmits operation information transmitted from the local PC (210) to the mobile terminal (230) and transmits generated information generated from the mobile terminal to the local PC.

[0040] The above control unit (200) can control the automatic mixing nutrient solution supply system for shiitake mushrooms by transmitting temperature data measured from the electric conductivity (EC) sensor (141), the hydrogen ion (pH) concentration sensor (143), and the temperature sensor (142) to the automatic control software of the local PC (210) through RS-485 communication.

[0041] The above control unit (200) can be converted to the automatic control function of the local PC (210) when communication on the Internet network becomes impossible and control using the mobile terminal (230) becomes difficult.

[0042] Above, referring to FIG. 3, the automatic mixed nutrient solution supply system for shiitake mushrooms of the present invention measures the electrical conductivity (EC), hydrogen ion concentration (pH), and temperature of the mixed nutrient solution in the mixing tank (140) by the electrical conductivity (EC) sensor (141), the temperature sensor (142), and the hydrogen ion (pH) concentration sensor (143) installed in the mixing tank (140). Thereafter, the control unit (200) determines whether the electrical conductivity, hydrogen ion concentration, and temperature of the mixed nutrient solution are each within a preset range based on the measured values ​​of the electrical conductivity (EC) sensor (141), the temperature sensor (142), and the hydrogen ion (pH) concentration sensor (143). At this time, if the control unit (200) determines that the electrical conductivity, hydrogen ion concentration, and temperature of the mixed nutrient solution are each within a preset range, the pump (160) is operated so that the mixed nutrient solution is sprayed to the cultivation unit (300) through the supply unit (400). In addition, if the control unit (200) determines that the electrical conductivity, hydrogen ion concentration, and temperature of the mixed nutrient solution are each outside a preset range, the first to third solenoid valves (V1, V2, V3) are opened and closed so that the original solution or pH solution is injected into the mixing tank (140).

[0043] As a result, the automatic mixing nutrient solution supply system for shiitake mushrooms of the present invention has the advantage of being able to automatically mix the nutrient solution based on data on the state of the nutrient solution measured through sensors for electrical conductivity (EC), hydrogen ion concentration (pH), and temperature, and supply it to crops while maintaining it uniformly under optimal conditions.

[0044] While specific aspects of the present invention have been described in detail above, it should be apparent to those skilled in the art that these specific descriptions are merely preferred implementation examples and are not intended to limit the scope of the present invention. In other words, those skilled in the art will readily appreciate that the technical configuration of the present invention described above can be implemented in other specific forms without altering the technical spirit or essential features of the present invention.

[0045] Therefore, the embodiments described above should be understood as being exemplary and not restrictive in all respects, and the scope of the present invention is indicated by the claims described below rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention.

[0046] Furthermore, the substantial scope of the present invention is defined by the appended claims and their equivalents. The scope of the present invention is set forth in the claims below, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

[0047] [Explanation of symbols]

[0048] 100: External case

[0049] 110: Liquid fertilizer concentrate A storage tank

[0050] 120: Liquid fertilizer concentrate B storage tank

[0051] 130: pH solution storage tank

[0052] 140: Mixing tank

[0053] 141: Electrical Conductivity (EC) Sensor

[0054] 142: Temperature sensor

[0055] 143: Hydrogen ion (pH) concentration sensor

[0056] 144: Auxiliary heater

[0057] 145: Stirrer

[0058] 150: Cooling and heating device

[0059] 160: Pump

[0060] 170: Enemy

[0061] 200: Control Unit

[0062] 210: Local PC

[0063] 220: Cloud Server

[0064] 230: Mobile terminal

[0065] 300: Cultivation Department

[0066] 310: Sawdust Badge

[0067] 400: Supply Department

[0068] 410: Pin

[0069] V1, V2, V3, V4: 1st solenoid valve to 4th solenoid valve

[0070] L1, L2, L3, L4, L5, L6: Pipes 1 to 6

Claims

1. Multiple storage tanks in which different raw materials are stored; A mixing tank provided directly below the plurality of storage tanks, connected to the plurality of storage tanks through a pipe, and in which different raw solutions are mixed to produce a mixed nutrient solution; A plurality of solenoid valves for controlling the flow of the raw liquid in the plurality of storage tanks; and A cultivation section is provided spaced apart from the above mixing tank and is provided with a plurality of sawdust substrates on which mushroom spores are sprayed; An automatic mixing nutrient solution supply system for shiitake mushrooms, characterized in that when the plurality of solenoid valves are opened, the original solution stored in each of the plurality of storage tanks flows to the mixing tank by gravity.

2. In paragraph 1, The above mixing tank includes an electrical conductivity sensor, a hydrogen ion concentration sensor, and a temperature sensor that measure at least one of the electrical conductivity, hydrogen ion concentration, and temperature of the mixed nutrient solution. The above storage tank includes a liquid fertilizer raw material A storage tank, a liquid fertilizer raw material B storage tank, and a pH solution storage tank, which are connected to the first pipe, the second pipe, and the third pipe from the mixing tank and are respectively connected to the first solenoid valve, the second solenoid valve, and the third solenoid valve. An outer case including a pump that provides power to move the mixed nutrient solution discharged from the mixing tank to the supply unit; A supply unit connected to the fifth and sixth pipes in the above mixing tank to supply the mixed nutrient solution to each of the plurality of sawdust substrates; and A control unit further includes a control unit that controls at least one of the first solenoid valve, the second solenoid valve, the third solenoid valve, and the fourth solenoid valve of the sixth pipe that supplies liquid from the mixing tank to the crop cultivation unit based on measurement data measured from the electric conductivity sensor, the hydrogen ion concentration sensor, and the temperature sensor to control the supply amount of each liquid from the mixing tank to the storage tank; An automatic mixing nutrient solution supply system for shiitake mushrooms, characterized in that the supply unit includes a plurality of needle pins each inserted into a plurality of sawdust beds.

3. In paragraph 2, The above mixing tank further includes a stirrer and an auxiliary heater for heating inside, An automatic mixing nutrient solution supply system for shiitake mushrooms, characterized in that the control unit controls the auxiliary heater based on temperature data measured from the electric conductivity sensor, the hydrogen ion concentration sensor, and the temperature sensor, and controls the stirrer to operate simultaneously with the supply of the liquid fertilizer solution A, the liquid fertilizer solution B, the pH solution, and the raw water.

4. In paragraph 2, An automatic mixing nutrient solution supply system for shiitake mushrooms, characterized in that the above liquid fertilizer solution A storage tank, the above liquid fertilizer solution B storage tank, and the above pH solution storage tank are all arranged above the above mixing tank, so that each liquid is supplied to the above mixing tank without power.

5. In paragraph 2, A local PC connected to the control unit so as to be able to communicate with it by wire or wirelessly and monitor the operation of at least one of the mixing tank, the liquid fertilizer raw material A storage tank, the liquid fertilizer raw material B storage tank, the pH solution storage tank, the supply unit, and the pump; and An automatic mixing nutrient solution supply system for shiitake mushrooms, characterized in that it further comprises a cloud server, which is connected to the local PC and the mobile terminal so as to be able to communicate with each other over an Internet network, and transmits operation information transmitted from the local PC to the mobile terminal and transmits generated information generated from the mobile terminal to the local PC.

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