JP6324840B2 - Multi-stage hydroponics equipment - Google Patents

Description

  The present invention is a multi-stage hydroponics that cultivates plants in hydroponics panels provided in the hydroponic equipment main body of each stage arranged in multiple stages in the vertical direction using nutrient solution and artificial illumination light. Relates to the device.

In recent years, hydroponic cultivation in which plants for cultivation are cultivated by using a nutrient solution without using soil and irradiating with artificial illumination light has become widespread.
Generally, in the hydroponic cultivation apparatus, a hydroponic cultivation panel that holds plant seedlings is provided in a hydroponic cultivation main body having a nutrient solution tank that supplies a nutrient solution, and artificially attached to the plants in the hydroponic cultivation panel. The illumination apparatus which irradiates the illumination light of is provided.

  Hydroponics does not require the use of soil, enables high-density production in a narrow indoor space, and can adjust temperature, humidity, etc. without being affected by the weather. On the other hand, there is an advantage that it is easy to remove the contamination due to the above, but there is a disadvantage that it costs more in facilities and cultivation than soil cultivation.

  In order to compensate for the economic disadvantages associated with hydroponics, for example, it is used to grow the plant to be cultivated, to increase the harvesting efficiency of the plant to be cultivated per unit area of the hydroponics facility, to increase the growth rate of the plant to be cultivated It is necessary to improve the cost performance in the cultivation process, such as reducing the amount of electricity used as much as possible.

However, conventionally, for example, the following Patent Literature 1 proposes a hydroponic cultivation apparatus aimed at increasing the harvesting efficiency of plants to be cultivated per unit area of a hydroponic cultivation facility and reducing the amount of electricity used. ing.
The hydroponic cultivation apparatus described in Patent Literature 1 has a structure in which the hydroponic cultivation equipment main body is vertically stacked in two or more stages, and the hydroponic cultivation equipment main body of each stage other than the lowest stage. A lighting device is installed in the lower part, hydroponics by irradiation of sunlight for the cultivation target plants in the uppermost cultivation panel, and sun for the cultivation target plants in the cultivation panels at each stage other than the uppermost stage. It is configured to perform hydroponic cultivation by irradiation of light and artificial light from a lighting device.
In this way, hydroponic cultivation equipment main body is multi-staged, and hydroponic cultivation described in Patent Document 1 is designed to perform hydroponic cultivation by irradiation of sunlight on the plant to be cultivated in the uppermost cultivation panel. Compared to single-stage hydroponics, the cultivation equipment has a higher yield of plants to be cultivated per unit area of hydroponic cultivation facilities, and multistage hydroponics using lighting equipment for all stages There is an advantage that the amount of electricity used can be reduced as compared with the apparatus.

Conventionally, in a hydroponic cultivation apparatus, as a moving mechanism for adjusting the distance between the cultivation target plant and the lighting device in accordance with the growth of the cultivation target plant, a plurality of support columns, a plurality of pulleys, and a plurality of weights are used. And the structure which provided the wire which connects an illuminating device and a some weight, and enabled the illuminating device to move up and down is proposed by the following patent document 2, for example.
According to the hydroponic cultivation apparatus described in Patent Literature 2, there is an advantage that the lighting device can be lifted and lowered by a simple mechanism.

  In addition, in the above-mentioned Patent Document 1, the cultivation panel of each stage is divided into a plurality of areas, and the lighting device installed at the lower part of the hydroponics equipment main body of each stage is high for each area of the cultivation stage. It is described that the thickness can be adjusted.

In soil cultivation instead of hydroponics, conventionally, for example, the lighting device is raised in accordance with the height of the plant to be cultivated in the house, and the lighting elevation is maintained to keep the distance between the lighting device and the plant to be cultivated constant. In the mechanism, the following Patent Document 3 describes that the measuring device measures the height of the plant to be cultivated, and the control unit controls the illumination lifting mechanism based on the height information of the plant to be cultivated measured by the measuring device. Yes.
The measuring device described in Patent Document 3 is arranged with a light projecting element arranged at a constant pitch on a first pipe standing on the ground, and arranged at a constant pitch and facing the light projecting element on a second pipe standing on the ground. And a light receiving element.

JP 2014-33622 A JP 2013-39045 A JP 2007-289094 A

However, a lighting device is installed at the lower part of the hydroponic cultivation main body of each stage other than the lowest stage such as the hydroponic cultivation apparatus described in Patent Document 1, so that the height can be adjusted for each area of the cultivation stage. In the above configuration, it is necessary to adjust the height of the lighting device for each lighting device installed in the hydroponic equipment main body of each stage, and for each area of the cultivation stage. Will become complicated.
Moreover, although there is no indication about electrically adjusting the height of the lighting device in the hydroponic cultivation device described in Patent Literature 1, the height of the lighting device in the hydroponic cultivation device described in Patent Literature 1 is temporarily assumed. Even if the height adjustment is performed electrically, the driving means for adjusting the height of the lighting device for each area of the cultivation stage is provided for each lighting device installed in the hydroponic cultivation main body of each stage. Furthermore, since it is necessary to drive separately for every area of a cultivation stage, the usage-amount of electricity will increase.
Furthermore, in the hydroponic cultivation device described in Patent Document 1, even if the height of the lighting device can be adjusted for each area of the cultivation stage, so that the height adjustment of the lighting device is performed at an optimal time, The growth of the plant to be cultivated must be monitored artificially, increasing the burden on the operator.

Moreover, although the mechanical structure which can move an illuminating device up and down is disclosed by patent document 2 as a moving mechanism for adjusting the distance of a plant for cultivation and an illuminating device, it is hydroponics of one-stage structure. There is no idea about the drive mechanism of the illuminating device in a multistage hydroponic cultivation apparatus.
In Patent Document 2, there is no disclosure about electrically adjusting the height of the lighting device.
Furthermore, in the hydroponic cultivation apparatus described in Patent Document 2, even if the height of the lighting device can be adjusted, the plant growth is artificially performed so that the height adjustment of the lighting device is performed at an optimal time. Therefore, the burden on the operator increases.

Moreover, in patent document 3, in the lighting raising / lowering mechanism which keeps the distance between an illuminating device and a plant for cultivation constant, the measuring device measures the height of the plant for cultivation, and the cultivation by which the control part was measured by the measuring device. Although it is described that the lighting lifting mechanism is controlled based on the height information of the target plant, a plurality of light projecting elements and light receiving elements are provided on a pipe standing on the ground as in the measurement apparatus described in Patent Document 3. In the configuration in which the height of the plant to be cultivated from the ground is measured, the number of members for measurement becomes enormous and the configuration becomes complicated.
And the illumination raising / lowering mechanism of patent document 3 is connected to the output shaft of the worm reduction gear connected with the motor arrange | positioned on the flame | frame provided in the upper part of one pillar in a house, and the front-end | tip is a bearing. A sufficiently long drive shaft that is rotatably supported by a motor is provided with two winding drums or sprockets, and a lighting support bar in which illumination is suspended at the lower end around which a wire or chain is wound. Since the structure is complicated and large, the power to be used becomes enormous.
Furthermore, the illumination raising / lowering mechanism described in Patent Document 3 is in a soil cultivation apparatus, and there is no idea about the illumination raising / lowering mechanism in a multistage hydroponic cultivation apparatus in the first place.

  The present invention has been made in view of the above problems, and adjusts the distance between the plant to be cultivated and the lighting device in accordance with the growth of the plant to be cultivated without manpower while suppressing the amount of electricity used as much as possible. Multi-stage hydroponics that can increase the growth rate of the plant to be cultivated and can significantly improve the working efficiency for cultivation as well as the harvesting efficiency of the plant to be cultivated per unit area of the hydroponics facility An object is to provide an apparatus.

  In order to achieve the above object, a multi-stage hydroponic cultivation apparatus according to the present invention is a multi-stage hydroponic cultivation apparatus provided with a hydroponic cultivation panel in a hydroponic cultivation main body arranged in a plurality of stages in the vertical direction. In each stage, the LED lighting apparatus that illuminates the plant in the hydroponics panel, and in each stage, the LED lighting that holds the LED lighting apparatus separately from the hydroponics equipment main body A holding plate, connecting means for connecting the LED lighting holding plates of all stages, an electric cylinder capable of moving the connecting means connecting the LED lighting holding plates of all stages in the vertical direction, and each of the stages In the above, a position detection sensor that is provided on the LED illumination holding plate and detects whether the relative distance between the tip of the plant in the hydroponic cultivation panel and the LED illumination holding plate has reached a predetermined range When In at least one stage, when the position detection sensor detects that the relative distance between the LED illumination holding plate at the tip of the plant in the hydroponics panel has reached a predetermined range, the electric cylinder The LED illumination holding plates of all the stages are simultaneously moved upward, and the relative distance between the position detection sensor and the LED illumination holding plate at the tip of the plant in the hydroponic cultivation panel is within a predetermined range. And an LED illumination height position control unit that stops driving of the electric cylinder when it is detected that the electric cylinder is off.

  Moreover, in the multistage hydroponic cultivation apparatus of this invention, the said connection means consists of a frame body joined to the said LED illumination holding plate of all the stages, and the said electric cylinder is integrally formed with or connected to the said frame body. It is preferable to have a rod and a motor unit that drives the rod in the vertical direction.

  Moreover, in the multistage hydroponic cultivation apparatus of this invention, the said connection means is four chains connected to the four corners of the said LED illumination holding board of all the stages, and the upper direction of the said LED illumination holding board, respectively. The chain holding member is configured to be able to lift the LED lighting holding plates of all stages by holding the four chains, and the electric cylinder is integrated with the chain holding member. It is preferable to have a rod to be formed or connected and a motor unit that drives the rod in the vertical direction.

  Moreover, in the multistage hydroponic cultivation apparatus of this invention, it is preferable that LED which comprises the said LED lighting fixture consists only of red LED and blue LED.

  Moreover, in the multistage hydroponic cultivation apparatus of the present invention, the LED lighting holding plate is sandwiched between a resin plate to which an LED tape or an LED panel can be attached, and the resin plate is sandwiched between both ends, and connected to the connecting means. It is preferable to consist of an aluminum material.

  According to the multi-stage hydroponic cultivation apparatus of the present invention, cultivation is performed by adjusting the distance between the plant to be cultivated and the lighting device in accordance with the growth of the plant to be cultivated without manpower while suppressing the amount of electricity used as much as possible. A multi-stage hydroponic cultivation device that can accelerate the growth rate of the target plant and can significantly improve the working efficiency for cultivation as well as the harvesting efficiency of the plant to be cultivated per unit area of the hydroponic cultivation facility is obtained. It is done.

It is explanatory drawing which shows roughly the whole structure of the multistage hydroponic cultivation apparatus concerning one Example of this invention. It is explanatory drawing which shows the principal part structure of the multistage hydroponic cultivation apparatus of FIG. It is explanatory drawing which shows the LED lighting fixture, the illumination holding plate, and a position detection sensor in the multistage hydroponic cultivation apparatus of FIG. 1, (a) is the figure seen from upper direction, (b) is the figure seen from the downward direction. It is explanatory drawing which shows the LED lighting fixture in the multistage hydroponic cultivation apparatus of FIG. 1, an illumination holding plate, and a position detection sensor, (a) is a partial expanded sectional view, (b) is the partial expanded view seen from the lower side. It is explanatory drawing which shows the principal part structure of the multistage hydroponic cultivation apparatus concerning one modification of this invention.

Prior to the description of the embodiments, the effects of the present invention will be described.
The multi-stage hydroponic cultivation apparatus of the present invention is a multi-stage hydroponic cultivation apparatus comprising a hydroponic cultivation panel in a hydroponic cultivation equipment main body arranged in a plurality of stages in the vertical direction, and in each stage, LED lighting fixtures that illuminate plants in hydroponics panels, LED lighting holding plates that hold LED lighting fixtures separately from the hydroponic cultivation equipment main body in each stage, and LED lighting for all stages The connecting means for connecting the holding plate, the electric cylinder for moving the connecting means for connecting the LED lighting holding plates of all the stages in the vertical direction, and the LED lighting holding plate in each of the stages. A position detection sensor that detects whether or not the relative distance between the LED illumination holding plate at the tip of the plant in the hydroponic cultivation panel has reached a predetermined range, and at least one stage, the position detection sensor Cultivation When it is detected that the relative distance between the LED lighting holding plate at the tip of the plant in the panel has reached a predetermined range, the electric cylinder is driven and the LED lighting holding plates at all stages are moved upward simultaneously. When the position detection sensor detects that the relative distance of the tip of the plant in the hydroponics panel from the LED illumination holding plate is out of the predetermined range, the LED illumination height that stops driving the electric cylinder A position control unit.

  As in the multistage hydroponic cultivation apparatus of the present invention, the connecting means for connecting the LED lighting holding plates of all the stages and the electric cylinder capable of moving the connecting means connecting the LED lighting holding plates of all the stages in the vertical direction In order to adjust the relative distance between the lighting equipment of each stage and the plant to be cultivated, if the LED lighting holding plate of all the stages is configured to be simultaneously movable in the vertical direction via the drive of the electric cylinder The number of times of driving the electric cylinder can be reduced as much as possible, and the amount of electricity used can be significantly reduced as compared with the case where the electric cylinder is driven to move each stage of the LED illumination holding plate separately. .

  Moreover, like the multistage hydroponic cultivation apparatus of this invention, the position detection sensor which detects whether the relative distance with the LED illumination holding plate of the plant tip in a hydroponic cultivation panel reached | attained within the predetermined range. Is a configuration in which the LED illumination holding plate is provided in each stage, the configuration in which a plurality of light projecting elements and light receiving elements are provided on a pipe standing on the ground like the measuring device described in Patent Document 3. In contrast, the number of sensors for measurement is sufficient for each stage, and the number of parts can be suppressed as much as possible.

  Moreover, as in the multistage hydroponic cultivation apparatus of the present invention, the LED illumination height position control unit, at least in one stage, the position detection sensor is connected to the LED illumination holding plate at the tip of the plant in the hydroponic cultivation panel. When it is detected that the relative distance has reached the predetermined range, the electric cylinder is driven, the LED illumination holding plates of all the stages are moved upward at the same time, and the position detection sensor is connected to the hydroponics panel. When it is detected that the relative distance between the LED illumination holding plate at the tip of the plant and the LED illumination holding plate is out of the predetermined range, the driving of the electric cylinder is stopped. The LED lighting apparatus can be automatically adjusted to an irradiation position suitable for the growth of the plant to be cultivated.

  In addition, if the plants in the hydroponics panel are illuminated with LED lighting fixtures as in the multistage hydroponic cultivation apparatus of the present invention, the lighting will not be damaged by heat even if it is close to the plant to be cultivated. Irradiation and power consumption can be reduced.

  For this reason, according to the multistage hydroponic cultivation apparatus of the present invention, the distance between the cultivation target plant and the lighting device is adjusted in accordance with the growth of the cultivation target plant without manpower while suppressing the amount of electricity used as much as possible. As a result, the growth rate of the plant to be cultivated can be increased, and the working efficiency for cultivation can be remarkably improved together with the harvesting efficiency of the plant to be cultivated per unit area of the hydroponic cultivation facility.

  Further, in the multistage hydroponic cultivation apparatus of the present invention, the connecting means is constituted by a frame body joined to the LED lighting holding plates of all the stages, and the electric cylinder is integrally formed with or connected to the frame body, and the rod If the motor unit is configured to be driven in the vertical direction, it is possible to realize a configuration in which the LED illumination holding plates of all the stages can be simultaneously moved in the vertical direction through driving of the electric cylinder.

  Moreover, in the multistage hydroponic cultivation apparatus of the present invention, four connecting chains are connected to the four corners of the LED lighting holding plates of all the stages, and four above the uppermost LED lighting holding plates. A rod that has a chain holding member configured to be able to lift up the LED lighting holding plates of all stages by holding the chain, and the electric cylinder is integrally formed with or connected to the chain holding member, and a rod If it is configured to have a motor unit that drives the LED in the vertical direction, it is possible to realize a configuration in which the LED illumination holding plates of all stages can be simultaneously moved in the vertical direction through the driving of the electric cylinder. The weight of the member to be lifted by can be reduced, and power consumption can be reduced accordingly.

  Moreover, in the multistage hydroponic cultivation apparatus of this invention, if LED which comprises LED lighting fixture is comprised only with red LED and blue LED, it is effective in the red wavelength and leaf growth promotion which are effective for photosynthesis of a plant for cultivation. Irradiation can be performed only with an effective blue wavelength, and as a result, the plant to be cultivated can be grown more efficiently.

  Moreover, in the multistage hydroponic cultivation apparatus of the present invention, the LED illumination holding plate is a resin plate to which the LED tape or the LED panel can be attached, and an aluminum material that sandwiches the resin plate at both ends and is connected to the coupling means. Since the LED illumination holding plate can be reduced in weight, the number of LED illumination holding plates can be increased or the area of the LED illumination holding plate per stage can be increased to increase the number of stages. It can be applied to a hydroponics panel of equipment main body or a multi-stage hydroponics apparatus equipped with a hydroponic panel of a larger area, and more efficient cultivation of a plant to be cultivated becomes possible.

FIG. 1 is an explanatory diagram schematically showing the overall configuration of a multistage hydroponic cultivation apparatus according to an embodiment of the present invention. FIG. 2 is an explanatory diagram showing a main configuration of the multistage hydroponic cultivation apparatus of FIG. 1. FIG. 3 is an explanatory view showing an LED lighting apparatus, an illumination holding plate, and a position detection sensor in the multistage hydroponic cultivation apparatus of FIG. 1, wherein (a) is a view from above, and (b) is a view from below. FIG. 4 is an explanatory view showing an LED lighting apparatus, an illumination holding plate and a position detection sensor in the multistage hydroponic cultivation apparatus of FIG. 1, (a) is a partially enlarged sectional view, and (b) is a partially enlarged view seen from below. It is. FIG. 5 is an explanatory diagram illustrating a main configuration of a multistage hydroponic cultivation apparatus according to a modification of the present embodiment.
The multistage hydroponic cultivation apparatus 1 of the present embodiment includes a hydroponic cultivation equipment main body 2, a hydroponic cultivation panel 3, an LED lighting device 4, an illumination holding plate 5, a connecting means 12, and an electric cylinder 6. The position detection sensor 7 and the LED illumination height position control unit 8 are provided.

The hydroponic cultivation equipment main body 2 is, for example, arranged in a plurality of layers in the vertical direction on a metal rack member 2a having a plurality of racks in the vertical direction, and the hydroponics panel 3 in each level. And a nutrient solution tank 2b capable of supplying a nutrient solution to the plant 20 planted in the hydroponics panel 3.
A drainage port 2b1 and a water supply port 2b2 are provided in the nutrient solution tank 2b of the hydroponics facility main body 2 of each stage. A pipe 2b3 is connected to the drainage port 2b1 of the nutrient solution tank 2b of the hydroponic equipment main body 2 of each stage and the water supply port 2b2 of the nutrient solution tank 2b of each stage of the hydroponic culture equipment main body 2 excluding the uppermost stage. Has been. And the nutrient solution of the nutrient solution tank 2b of the hydroponic cultivation equipment main-body part 2 of each step | line except the lowest stage can be sent into the nutrient solution tank 2b of the hydroponic culture equipment main-body part 2 of the lower step through the pipe | tube 2b3. It is like that. In the example of FIG. 1, the pipe 2 b 3 is a component of the rack member 2 a and is piped through the pipe by making a hole in a part of the pipe that is erected. In addition, the pipe 2b3 may be piped so as to connect the drain port 2b1 and the water supply port 2b2 without passing through the pipe in the rack member 2a.
In addition, a pumping pump 9 is configured to be connected to a drain port 2b1 of the nutrient solution tank 2b of the lowermost hydroponics facility main body 2 via a suction pipe 9a. The pump 9 pumps the nutrient solution in the nutrient tank 2b of the lowermost hydroponics main body 2 and feeds the nutrient solution of the uppermost hydroponic plant main body 2 from the discharge pipe 9b connected to the water supply port 2b2. It is provided to be supplied to the tank 2b.

  In the example of FIG. 1, a water storage tank 10 is provided between the drainage port 2 b 1 of the nutrient solution tank 2 b of the lowermost hydroponics main body 2 and the suction pipe 9 a of the pumping pump 9, and the lowermost hydroponics The nutrient solution tank 2b of the cultivation equipment main body 2 and the water storage tank 10 are connected by a pipe 2b3, and ozone bubbles are supplied to the water storage tank 10 via the ozone supply means 11, and from the water storage tank 10 Ozone contained in the nutrient solution supplied to the nutrient solution tank 2b of the uppermost hydroponic cultivation facility body 2 from the discharge pipe 9b connected to the water supply port 2b2 via the pumping pump 9 The nutrient solution tank 2b of the main body 2 and the hydroponics panel 3 are sterilized.

The hydroponics panel 3 is provided in the nutrient solution tank 2b of each hydroponics equipment main body 2 of each stage, and the lower surface is disposed so as to be in contact with the nutrient solution in the nutrient solution tank 2b. Specifically, for example, the hydroponics panel 3 is further provided in a foamable plate having holes or grooves or the like (not shown) for determining the position where the plant 20 for hydroponics is cultivated on the upper surface. Alternatively, a holding member (not shown) such as a sponge for holding the plant 20 in a stable state is inserted into the groove or the like. And the plant 20 for hydroponics is in the state hold | maintained at the holding member inserted in the hole or groove | channel of the hydroponics panel 3, and a hair root is the nutrient solution of the nutrient tank 2b from the lower surface of the hydroponics panel 3 Arranged to be able to suck up.
The hydroponics panel 3 is not limited to the above-described configuration, and may be any configuration as long as it can be grown while holding the hydroponic plant 20.

As shown in FIG. 2, the LED lighting device 4 is held by the LED holding plate 5 at each stage, and illuminates the plants 20 in the hydroponics panel 3 at each stage.
Moreover, the LED lighting fixture 4 is comprised with the waterproof type LED tape 4a provided with several LED4a1, and the adapter for LED power supply (illustration omitted), as shown in FIG.3 and FIG.4. Moreover, only red LED and blue LED are used for LED4a1 which comprises the LED lighting fixture 4. FIG. In addition, when the ratio of red LED and blue LED which comprises LED4a1 is set to 3 or 4: 1, for example, it is more preferable. Moreover, although LED lighting fixture 4 was set as the structure provided with LED tape 4a, as LED lighting fixture 4 applicable to the multistage hydroponic cultivation apparatus of a present Example, for example, red LED and blue LED May be configured to include LED panels arranged at a ratio of 3 or 4: 1, for example.
The LED holding plate 5 is provided separately from the hydroponic cultivation equipment main body 2 at each stage, and holds the LED lighting apparatus 4. Specifically, the LED illumination holding plate 5 includes, for example, a resin plate 5a to which an LED tape (or LED panel) 4a can be attached, and an aluminum material 5b that sandwiches the resin plate 5a at both ends and is connected to the connecting means 12. Consists of.

  The connecting means 12 includes a frame body 12a that joins the LED illumination holding plates 5 at all stages.

  The electric cylinder 6 is configured so that the connecting means 12 connecting the LED illumination holding plates 5 of all stages can be moved in the vertical direction. In the example shown in FIGS. 1 to 3, the electric cylinder 6 includes a rod portion 6 a integrally formed with a frame body 12 a to be joined to the aluminum material 5 b of the LED illumination holding plate 5 in all stages, and the rod portion 6 a in the vertical direction. It has the motor part 6b to drive.

In addition, if the connection means 12 and the electric cylinder 6 hold | maintain the LED illumination holding board 5 of all the steps, and are a structure which can move to an up-down direction simultaneously, it will be limited to the structure of the example shown in FIGS. It is not a thing and what kind of composition may be sufficient.
For example, the rod portion 6a may be connected to the frame body 12a.

Further, for example, as shown in FIG. 5 as a modified example, four chains 12a ′ respectively connecting the connecting means 12 to the four corners of the LED illumination holding plates 5 in all stages, and the LED illumination holding plate 5 in the uppermost stage. And holding the four chains 12a ′, the LED illumination holding plates of all the stages are configured to have a chain holding member 12b ′ that can be lifted, and the electric cylinder 6 is held by the chain. You may comprise and comprise the rod 6a integrally formed or connected to member 12a ', and the motor part 6b which drives a rod to an up-down direction.
In FIG. 5, 12b1 ′ is a main body of the chain holding member 12b ′, 12b2 ′ is another component of the chain holding member 12b ′, and the four chains 12a ′ are suspended by the main body 12b ′. It is a frame for stabilizing. In the example of FIG. 5, four chains 12a ′ connected to the four corners of the uppermost LED illumination holding plate 5 are respectively connected to the four corners of the frame body 12b ′, and four chains are connected from the four corners of the frame body 12b ′. 12a ′ is attached to the tip of the main body 12b ′.
In FIG. 5, for convenience, only one chain 12 a ′ is visible because it is a side view. However, two chains 12 a that are connected to the two corners of the LED illumination holding plate 5 on the back side of the page as well. 'Equipped with.

  The position detection sensor 7 is provided on the LED illumination holding plate 5 at each stage, and as shown in FIG. 4A, the LED illumination holding plate 5 at the tip of the plant 20 in the hydroponic cultivation panel 3 It is configured to detect whether or not the relative distance L has reached within a predetermined range L0 (L ≦ L0). Specifically, the position detection sensor 7 includes a pair of light emitting / receiving elements 7a and 7b provided so that the position from the lower surface of the LED illumination holding plate 5 is within a predetermined range L0. The light-emitting / light-receiving elements 7a and 7b constituting the position detection sensor 7 do not have to be limited to one set at each stage, and may be provided in a plurality corresponding to the plurality of plants 20.

  The LED illumination height position control unit 8 is connected to the position detection sensor 7 and the electric motor 6, and at least at one stage, the position detection sensor 7 is the LED illumination holding plate 5 at the tip of the plant 20 in the hydroponic cultivation panel 3. , When it is detected that the relative distance L has reached the predetermined range L0 (L ≦ L0), the electric cylinder 6 is driven, and the LED illumination holding plates 5 of all the stages are simultaneously moved upward, When the position detection sensor 7 detects that the relative distance L between the tip of the plant 20 in the hydroponics panel 3 and the LED illumination holding plate 5 is out of the predetermined range L0 (L0 <L). The computer is configured with an arithmetic unit incorporating control software for stopping the driving of the electric cylinder 6.

  In the cultivation process using the multistage hydroponic cultivation apparatus 1 of the present embodiment configured as described above, the pipe 2b3 and the water storage tank 10 are connected to the drainage port 2b1 of the nutrient solution tank 2b of the lowermost hydroponic equipment main body 2. The nutrient solution sterilized via the ozone supply means 11 is periodically pumped by the pump 9 through the suction pipe 9a, and is supplied from the discharge pipe 9b through the water supply port 2b2 to the uppermost hydroponics main body 2. To the nutrient solution tank 2b. The supplied nutrient solution in the nutrient tank 2b of the uppermost hydroponic equipment main body 2 passes through the drainage port 2b1, the pipe 2b3, and the water supply port 2b2 to the nutrient solution tank 2b of the lowermost hydroponic plant main body 2 It flows in step by step. Then, the nutrient solution flows into the nutrient solution tank 2b of the lowermost hydroponic cultivation equipment main body 2 and, when a predetermined time has elapsed, is sterilized from the nutrient solution tank 2b through the water storage tank 10 via the ozone supply means 11. The nutrient solution is again pumped up by the pumping pump 9 and supplied to the nutrient solution tank 2 b of the uppermost hydroponics main body 2. These operations are repeated.

  Meanwhile, the LED lighting device 4 irradiates the plant 20 in the hydroponics panel 3 of each stage with LED light to promote photosynthesis. Meanwhile, the LED illumination height position control unit 8 indicates that the position detection sensor 7 of each stage has a relative distance L between the LED illumination holding plate 5 at the tip of the plant 20 in the hydroponic cultivation panel 3 within a predetermined range L0 ( Whether or not it has reached L ≦ L0) is monitored. The LED illumination height position control unit 8 has a predetermined distance L between the position detection sensor 7 and the LED illumination holding plate 5 at the tip of the plant 20 in the hydroponic cultivation panel 3 in at least one stage. When it is detected that it has reached the range L0 (L ≦ L0), the electric cylinder 6 is driven, the LED illumination holding plates 5 of all the stages are simultaneously moved upward, and the position detection sensor 7 When it is detected that the relative distance L between the tip of the plant 20 in the cultivation panel 3 and the LED illumination holding plate 5 is out of the predetermined range L0 (L0 <L), the driving of the electric cylinder 6 is stopped. Let

  Such a control operation is repeated until the plant in the hydroponics panel 3 grows to a size that can be harvested.

  According to the multistage hydroponic cultivation apparatus 1 of the present embodiment, the connecting means 12 that connects the LED lighting holding plates 5 of all the stages and the connecting means 12 that connects the LED lighting holding plates 5 of all the stages are vertically moved. The LED lighting holding plate 5 of all the stages can be moved simultaneously in the vertical direction through the driving of the electric cylinder 6, so that the LED lighting apparatus 4 of each stage and the cultivation target When the number of times of driving the electric cylinder 6 for adjusting the relative distance from the plant 20 can be reduced as much as possible, and the electric cylinder 6 is driven in order to move the LED illumination holding plates 5 of each stage separately. In comparison, the amount of electricity used can be significantly reduced.

  Moreover, according to the multistage hydroponic cultivation apparatus 1 of a present Example, whether the relative distance with the said LED illumination holding board 5 of the front-end | tip of the plant 20 in the hydroponic cultivation panel 3 reached | attained within the predetermined range. Since the position detection sensor 7 for detecting this is provided on the LED illumination holding plate 5 at each stage, a plurality of light projecting elements are provided on a pipe standing on the ground like the measuring device described in Patent Document 3. Unlike the configuration in which the light receiving element is provided, the number of sensors for measurement is sufficient for each stage, and the number of parts can be suppressed as much as possible.

  Moreover, according to the multistage hydroponic cultivation apparatus 1 of the present embodiment, the LED illumination height position control unit 8 is arranged at least in one stage, and the position detection sensor 7 is the tip of the plant 20 in the hydroponic cultivation panel 3. When it is detected that the relative distance L to the LED illumination holding plate 5 has reached the predetermined range L0 (L ≦ L0), the electric cylinder 6 is driven, and the LED illumination holding plates 5 of all the stages are moved. At the same time, the position detection sensor 7 has moved away from the predetermined distance L relative to the LED illumination holding plate 5 at the tip of the plant 20 in the hydroponic cultivation panel 3 (L0 <L). Since it was set as the structure which stops the drive of the electric cylinder 6 when it detects, the LED lighting fixture 4 can be automatically adjusted to the irradiation position suitable for growth of the plant to be cultivated about all the steps, without manpower.

  Moreover, according to the multistage hydroponics apparatus 1 of a present Example, since the plant 20 in the hydroponics panel 3 was illuminated with the LED lighting fixture 4, even if it makes illumination close to the plant 20 for cultivation, it is heat Therefore, it is possible to irradiate efficiently and reduce power consumption.

  For this reason, according to the multistage hydroponic cultivation apparatus 1 of a present Example, cultivation target plant 20 and LED lighting fixture are matched with the growth of cultivation target plant 20 without manpower, suppressing electric consumption as much as possible. The growth rate of the plant 20 to be cultivated can be increased by adjusting the distance to 4, and the work efficiency for cultivation can be significantly improved together with the harvesting efficiency of the plant 20 to be cultivated per unit area of the hydroponics facility Is possible.

  Moreover, according to the multistage hydroponic cultivation apparatus 1 of a present Example, the connection means 12 is comprised with the frame 12a joined to the LED lighting holding plate 5 of all the stages, and the electric cylinder 6 is comprised with the frame 12a. Since the rod 6a that is integrally formed (or connected) and the motor portion 6b that drives the rod 6a in the vertical direction are configured, the LED illumination holding plates 5 of all the stages are simultaneously connected via the drive of the electric cylinder 6. A configuration that can move in the vertical direction can be realized.

  Moreover, in the multistage hydroponic cultivation apparatus 1 of the present embodiment, four chains 12a ′ respectively connecting the connecting means 12 to the four corners of the LED lighting holding plates 5 of all the stages, and the uppermost LED lighting holding plate. 5, by holding the four chains 12 a ′, the LED illumination holding plates 5 of all the stages are configured to have a chain holding member 12 b ′ that can be lifted, and the electric cylinder 6 is If the rod 6a that is integrally formed with or connected to the chain holding member 12b ′ and the motor portion 6b that drives the rod 6a in the vertical direction are configured, the LED illumination can be held at all stages through the drive of the electric cylinder 6a. A configuration in which the plate 5 can be moved simultaneously in the vertical direction can be realized, and the weight of a member to be lifted by the electric cylinder 6a can be reduced, and power consumption can be reduced accordingly.

  Moreover, according to the multistage hydroponic cultivation apparatus 1 of a present Example, since LED4a1 which comprises LED lighting fixture 4 was comprised only with red LED and blue LED, the red wavelength effective for photosynthesis of the cultivation target plant 20 It is possible to irradiate only with a blue wavelength effective for promoting the growth of leaves, and as a result, it is possible to grow the plant 20 to be cultivated more efficiently.

  Moreover, according to the multistage hydroponic cultivation apparatus 1 of the present embodiment, the LED illumination holding plate 5 is sandwiched between the resin plate 5a to which the LED tape (or LED panel) 4a can be attached, and the resin plate at both ends, and Since it comprises the aluminum material 5b connected to the connecting means 12, the LED illumination holding plate 5 can be reduced in weight. For this reason, the number of the LED illumination holding plates 5 is increased, or the area of the LED illumination holding plate 5 per stage is increased to increase the number of stages, and the hydroponics panel 3 of the hydroponic equipment main body 2 having a larger number of stages. Or it can apply to the multistage hydroponic cultivation apparatus 1 provided with the hydroponic cultivation panel 3 of a larger area, and the cultivation of the plant 20 to be cultivated more efficiently is attained.

  The multi-stage hydroponic cultivation apparatus of the present invention uses the nutrient solution and artificial illumination light for the plants in the hydroponic cultivation panel provided in the hydroponic cultivation main body of each stage arranged in multiple stages in the vertical direction. It is useful for multi-stage hydroponic cultivation equipment.

DESCRIPTION OF SYMBOLS 1 Multistage hydroponic cultivation apparatus 2 Hydroponic cultivation equipment main-body part 2a Rack member 2b Nutrient tank 2b1 Drainage port 2b2 Water supply port 2b3 Pipe 3 Hydroponic cultivation panel 4 LED lighting fixture 4a LED tape (or LED panel)
4a1 LED
5 LED illumination holding plate 5a Resin plate 5b Aluminum material 6 Electric cylinder 6a Rod portion 6b Motor portion 7 Position detection sensor 8 LED illumination height position control portion 9 Pumping pump 9a Suction tube 9b Discharge tube 10 Water storage tank 11 Ozone supply means 12 Connection Means 12a Frame body 12a 'Chain 12b' Chain holding member 12b1 'Body portion 12b2' Frame body 20 Plant to be cultivated

Claims (5)

It is a multi-stage hydroponic cultivation apparatus equipped with a hydroponic cultivation panel in a hydroponic cultivation main body arranged in a plurality of stages in the vertical direction,
In each of the stages, an LED lighting device that illuminates the plant in the hydroponics panel,
In each of the stages, an LED illumination holding plate that holds the LED lighting apparatus separately from the hydroponic cultivation main body, and
Connecting means for connecting the LED lighting holding plates of all stages;
An electric cylinder capable of moving the connecting means connecting the LED illumination holding plates of all stages in the vertical direction;
In each stage, it is provided on the LED illumination holding plate and detects whether or not the relative distance between the LED illumination holding plate at the tip of the plant in the hydroponic cultivation panel has reached a predetermined range. A position detection sensor that
In at least one stage, when the position detection sensor detects that the relative distance between the LED illumination holding plate at the tip of the plant in the hydroponics panel has reached a predetermined range, the electric cylinder The LED illumination holding plates of all the stages are simultaneously moved upward, and the relative distance between the position detection sensor and the LED illumination holding plate at the tip of the plant in the hydroponic cultivation panel is within a predetermined range. An LED illumination height position control unit that stops driving of the electric cylinder when it is detected that the electric cylinder is off.
A multi-stage hydroponic cultivation apparatus comprising: The connecting means comprises a frame body joined to the LED lighting holding plates of all stages,
2. The multistage hydroponic according to claim 1, wherein the electric cylinder includes a rod that is integrally formed with or connected to the frame body, and a motor unit that drives the rod in a vertical direction. Cultivation equipment. The connecting means includes four chains respectively connected to the four corners of the LED lighting holding plates of all stages;
Above the uppermost LED lighting holding plate, by holding the four chains, it is configured to have a chain holding member configured to be able to lift the LED lighting holding plates of all stages,
2. The multistage water according to claim 1, wherein the electric cylinder includes a rod that is integrally formed with or connected to the chain holding member, and a motor unit that drives the rod in a vertical direction. Tillage cultivation equipment. LED which comprises the said LED lighting fixture consists only of red LED and blue LED, The multistage hydroponic cultivation apparatus in any one of Claims 1-3 characterized by the above-mentioned. The LED lighting holding plate is made of a resin plate to which an LED tape or an LED panel can be attached, and an aluminum material that sandwiches the resin plate at both ends and is connected to the connecting means. The multistage hydroponics apparatus in any one of -4.

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