JPWO2013072990A1 - Cultivation system and cultivation method - Google Patents

Abstract

Increase the operating rate of lighting equipment in plant factories and reduce initial costs of plant factories.
The cultivation system 10 is a cultivation system 10 installed in a plant factory. The cultivation system 10 is divided into a plurality of regions 22 and 23 and is cultivated so as to be movable between a plurality of regions and a cultivation bed 20 that grows plants in each region. And an illumination device 30 attached to the bed 20, and the illumination device 30 selectively illuminates any one of the plurality of regions 22 and 23.

Description

  The present invention relates to a cultivation system for cultivating plants and a cultivation method using the same.

  In recent years, plant factories for cultivating plants in buildings have been built for the purpose of stably supplying crops to the market without being affected by the weather. The plant factory is often a dark room that does not receive external light. In that case, the plant is cultivated by light from a lighting device provided in the room. Patent Document 1 discloses a lighting device for plant cultivation that can select an optimal pitch of an illuminating lamp in accordance with the type and growth of a plant and can perform illumination according to the type and growth of the plant.

JP 2009-106208 A

  In the plant factory, it is cultivated by the light from the lighting device without being affected by the weather and sunlight, so that the plant can be grown by continuously lighting all day long. However, when a plant is grown by continuous illumination, a physiological disorder, for example, a phenomenon in which plant cells are necrotized (chip burn) occurs, and the growth may be inhibited. Therefore, the plant factory is turned off so as to be in the nighttime state for a certain period of time, and the plant is rested to suppress the occurrence of physiological phenomena.

  However, since the lighting device is not used while the light is turned off, the operating rate of the lighting device is lowered. Moreover, since the illuminating device is installed to illuminate the entire area of the cultivation bed, the initial cost (initial investment cost) for constructing the plant factory increases.

  Therefore, it is desired to increase the operating rate of the lighting device in the plant factory and to suppress the initial cost of the plant factory.

  The present invention is a cultivation system installed in a plant factory, and is divided into a plurality of areas, and is attached to the cultivation bed so as to be movable between the plurality of areas, and a cultivation bed that cultivates plants in each area. An illuminating device, wherein the illuminating device selectively illuminates any one of the plurality of regions.

  In the present invention, the cultivation bed has an elongated shape having a length and a width. The plurality of regions are divided by a dividing line extending in a length direction of the cultivation bed. A cultivation system that is movable in the width direction is provided.

  Moreover, this invention provides the cultivation system further provided with the moving mechanism which moves the said illuminating device.

  In the present invention, the moving mechanism includes a motor provided in the lighting device, a pulley attached to the motor, one end fixed to the pulley, and the other end extending in a moving direction of the lighting device. And a linear member fixed to a bed. The cultivation system is provided in which the illumination device moves when the motor rotates and the pulley winds the linear member.

  Moreover, this invention is a rodless cylinder with which the said moving mechanism is provided above the said cultivation bed, this rodless cylinder has a moving body which moves along the axial direction, The said illuminating device is the said rod Provided is a cultivation system that moves while suspended from the moving body of a less cylinder.

  Moreover, this invention is provided with the said moving mechanism provided with the motor and pulley provided above the said cultivation bed, and the transmission element which the said illuminating device hangs while winding the said motor and pulley, and the said motor rotates. The cultivation system by which the said illuminating device moves is provided.

  Moreover, this invention is further equipped with the separator which stands up along the dividing line which divides this cultivation bed, and the said separator illuminates one area | region among the said several area | regions in the said separator. A cultivation system is provided that has a height that blocks light irradiated toward other adjacent areas.

  Furthermore, the present invention further includes a carbon dioxide generator that generates carbon dioxide, and the lighting device has a carbon dioxide supply port that supplies the carbon dioxide generated by the carbon dioxide generator toward a plant. I will provide a.

  The present invention further includes a cultivation system comprising a carbon dioxide generator that generates carbon dioxide, the separator having a carbon dioxide supply port that supplies the carbon dioxide generated by the carbon dioxide generator toward a plant. provide.

  Moreover, this invention provides the cultivation system with which the said illuminating device is always lighting.

  Moreover, this invention is a cultivation method using the said cultivation system, Comprising: After illuminating one area | region among the said several area | region for a predetermined time, the said illuminating device is moved to another area | region, and is illuminated. Provide cultivation methods.

  If the cultivation system of the present invention is used, in the plant factory in the dark room, the lighting device selectively illuminates any one of the plurality of regions of the cultivation bed. Can grow and rest plants in other areas. Since the lighting device is attached so as to be movable between a plurality of regions, the lighting device can be lit continuously by moving the lighting device between the plurality of regions every predetermined time. The operating rate of the apparatus can be improved.

  Moreover, the illuminating device is movable, and it is only necessary to illuminate a partial area of the divided cultivation bed, and it is not necessary to illuminate all areas of the cultivation bed at once. Therefore, the number of lighting devices can be reduced, and the initial cost (initial investment) necessary for the construction of the plant factory can be reduced.

It is a top view which shows the whole plant factory which installed the cultivation system. It is an enlarged view which expands the II part of FIG. 1 and shows a part of cultivation system. It is sectional drawing of the cultivation system along the III-III line of FIG. It is sectional drawing of the cultivation system along the IV-IV line of FIG. It is a figure which shows a pulley. It is a figure which shows another example of a cultivation system, Fig.6 (a) is a figure which shows the cultivation system which used the rodless cylinder as a moving mechanism, FIG.6 (b) shows the cultivation system which used the motor chain as a moving mechanism. FIG. 6 (c) is a diagram showing a cultivation system in which a carbon dioxide supply port is provided in the separator. It is a graph which shows the relationship between photosynthesis speed and light intensity.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following embodiments, the same or similar components are denoted by common reference numerals, and the scale of these drawings is appropriately changed for easy understanding. In addition, it should be noted that the technical scope of the present invention is not limited to these embodiments, but extends to the invention described in the claims and equivalents thereof.

  FIG. 1 is a plan view showing the whole plant factory 1 in which the cultivation system 10 of the present embodiment is installed, and FIG. 2 is an enlarged view showing a part of the cultivation system 10 by enlarging the II part of FIG. is there. FIG. 3 is a cross-sectional view of the cultivation system 10 along the line III-III in FIG. 2, and FIG. 4 is a cross-sectional view of the cultivation system 10 along the line IV-IV in FIG.

  The cultivation system 10 of the present embodiment is a system for cultivating a plant 21 by illumination such as a fluorescent lamp in a plant factory 1 that is a dark room, and two regions (a first region 22 and a second region 23, each of which is a first water tank). 22 and may also be referred to as a second water tank 23), and the cultivation bed 20 for cultivating the plant 21 in each region and the cultivation bed 20 movably between the first region 22 and the second region 23 It is provided with an illumination device 30 that selectively illuminates one of the first region 22 and the second region 23, and a moving mechanism 40 that automatically moves the illumination device 30. The plant factory 1 in the illustrated embodiment is a space surrounded by a roof and a wall, and is a dark room where sunlight does not enter even during the daytime. The plant 21 can be cultivated only by the light of the lighting device 30. It has become. As shown in FIG. 1, the cultivation bed 20 has an elongated rectangular shape having a length L1 and a width W1 in consideration of workability when planting and collecting plants. The cultivation system 10 is installed in parallel with each other.

  In the illustrated embodiment, the cultivation bed 20 is a cultivation tank for hydroponics, and the plant 21 is cultivated by floating the cultivation panel 24 on which the plant 21 is planted on the water surface. A plurality of cultivation beds 20 are stacked and installed, and only the bottom cultivation bed 20 is shown in the figure. On the side of the cultivation bed 20, pillars 29a and 29b that support the upper cultivation bed stand up. Moreover, the wall part 25 has stood up in the side part of the cultivation bed 20, and can interrupt the light from the outside of the cultivation bed 20. A part of the wall portion 25 may be a curtain that can be opened and closed. The cultivation bed 20 is divided into two regions (first region 22 and second region 23) by a center line B extending in the length direction of the cultivation bed 20, as shown in FIG. 2 and FIG. A separator 26 that rises along the center line B and blocks the light of the lighting device above the adjacent region is disposed.

  In the cultivation system 10 of this embodiment, the illuminating device 30 is installed so that either one of the 1st area | region 22 and the 2nd area | region 23 can be alternatively illuminated. 2 to 4 show a state in which the illumination device 30 is disposed above the first region 22.

  In the state shown in the drawing, the light emitted from the lighting device 30 does not leak outside the first region 22 by the shade 35 of the lighting device 30 described later, the wall portion 25 of the cultivation bed 20 and the separator 26. Yes. Therefore, when the lighting device 30 is arranged above the first region 22, only the plant 21 in the first region 22 is illuminated to promote growth. On the other hand, in the second region 23 adjacent to the first region 22, the plant factory 1 is a dark room while the lighting device 30 illuminates the first region 22, and the separator 26 and the shade 35 remove the lighting device 30 from the lighting device 30. Therefore, the light does not enter the second region 23, and the plant 21 in the second region 23 is in a resting state.

  In the present embodiment, the wall 25 and the separator 26 are provided in order to block the light from the lighting device 30, but due to the shape of the shade 35, when the lighting device 30 does not irradiate the adjacent region with strong light, The wall portion 25 or the separator 26 may not be provided. Further, the wall portion 25 may be attached to be able to be opened and closed by a curtain type or a door type as shown in FIG.

  The cultivation system 10 of this embodiment is provided with a rail 27 above the lighting device 30 as shown in the figure. The rail 27 has a runner 28 that moves along the rail 27, and the lighting device 30 is suspended from the rail 27 via the runner 28. The rail 27 shown in the figure is attached to the bottom surface (not shown) of a cultivation bed of another cultivation system located on the upper stage of the cultivation system 10, for example. In the cultivation system in the uppermost stage, the rail 27 may be attached to the roof of the plant factory 1. In this embodiment, the rail 27 is provided so as to extend in the width direction of the cultivation bed 20. Therefore, the illumination device 30 suspended from the rail 27 can be moved manually or automatically in the width direction of the cultivation bed 20.

  Since the illuminating device 30 is movable, the illuminating device 30 illuminates the first region 22 for a predetermined time, and then the illuminating device 30 moves to the second region 23 in a lit state (a state indicated by a dotted line in FIG. 3). The second area 23 is subsequently illuminated. While the illumination device 30 illuminates the second region 23, light from the illumination device 30 is blocked by the separator 26 and the shade 35, and the first region 22 becomes a dark place. Therefore, the growth of the plant 21 in the second region 23 is promoted, and the plant 21 in the first region 22 in the dark place comes to rest.

  As shown in FIG. 3, the illuminating device 30 includes a substrate 32, a fluorescent lamp 34 that is a light source of the illuminating device 30 and is provided below the substrate 32, and a shade 35 that covers the fluorescent lamp 34. . The substrate 32 includes reinforcing members 33a, 33b, and 33c that reinforce the strength of the substrate 32 (see FIG. 2). The shade 35 covering the fluorescent lamp 34 is formed along a quadratic curve in which the position of the fluorescent lamp 34 is a focal point, and the light emitted from the fluorescent lamp 34 is reflected downward in the figure to improve the efficiency. In particular, the plant 21 is irradiated with light.

  The lighting unit 31 is configured by combining a substrate 32, two fluorescent lamps 34, and a shade 35. The lighting device 30 is manufactured by connecting a plurality of lighting units 31 to each other, and the lighting device 30 corresponding to the length of the cultivation bed 20 can be manufactured by adjusting the number of lighting units 31 to be connected. it can. In addition, when some of the lighting units 31 of the lighting device 30 fail, only the failed lighting unit 31 needs to be repaired or replaced, and the lighting device 30 can be repaired quickly.

  In the figure, a lighting unit 31 having two fluorescent lamps 34 is shown. However, the number of fluorescent lamps 34 provided in the lighting unit 31 may be increased or decreased as the plant 21 grows. Three or more fluorescent lamps 34 may be provided in order to secure the necessary amount of light. Moreover, when the amount of light may be small, it may be one. The light source of the illumination unit 31 is not limited to a fluorescent lamp, and may be an LED or an incandescent bulb. However, it is most preferable to use a fluorescent lamp from the viewpoint of operation cost. The lifespan of fluorescent lamps is mainly 12000 hours on average, but recently, those with a lifespan of 15000 hours or more have been manufactured and sold, and can be used for a longer time.

  Next, the moving mechanism 40 that moves the lighting device 30 of the cultivation system 10 will be described. As described above, the lighting device 30 is suspended from the runner 28 that moves along the rail 27, and the lighting device 30 can move in the width direction of the cultivation bed 20. Although the movement of the illuminating device 30 may be performed manually by the operator, since many cultivation systems 10 are installed in the plant factory 1 as shown in FIG. 1, all the illuminating devices 30 are manually moved. It takes time and effort to move. Therefore, the cultivation system 10 of this embodiment is provided with the moving mechanism 40 which can move the illuminating device 30 automatically.

  As shown in FIG. 1, the moving mechanism 40 is disposed substantially at the center in the length direction of the illumination device 30. 2 to 4, the moving mechanism 40 of the present embodiment includes a motor 41 disposed on the substrate 32, a pulley 42 attached to the tip of the rotating shaft 41 a of the motor 41, and two wound around the pulley 42. Wire 43a, 43b. One end of the two wires 43a and 43b is fixed to the pulley 42, and the other end extends in the moving direction of the lighting device 30, and in the illustrated embodiment, is fixed to the column portions 29a and 29b that support the upper cultivation bed. Yes. The other ends of the two wires may be fixed to the wall of the plant factory or the back of the roof, or may be fixed to a wall portion that rises on the side of the cultivation bed.

  The pulley 42 includes a right-turn winding type pulley 42a (hereinafter referred to as a right-handed pulley 42a) that winds the wire 43a, and a left-turn winding type pulley 42b (hereinafter referred to as a left-handed pulley 42b) that winds the wire 43b. Are fixed coaxially with each other. Further, between the right-hand pulley 42a and the rotation shaft 41a, when the pulley 42 rotates in the rewind direction of the right-hand pulley 42a (left rotation, direction C in FIG. 5), A ratchet 44a for freely rotating the pulley 42a is provided. Further, between the left-handed pulley 42b and the rotating shaft 41a, when the pulley 42 rotates in the rewinding direction of the left-handed pulley 42b (right rotation, direction D in FIG. 5), the left-handed pulley with respect to the rotating shaft 41a. A ratchet 44b for freely rotating 42b is provided. This is because the winding length and rewinding length of the right-handed pulley 42a and the left-handed pulley 42b are the same due to the elongation of the wires 43a and 43b or the overlapping of the wires during winding. This is because they do not necessarily match. Therefore, the ratchet 44a, 44b can freely rotate the rewinding side in accordance with the rotation direction of the rotating shaft 41a, so that the difference between the winding length and the rewinding length of the wires 43a, 43b can be absorbed. ing.

  For example, by rotating the rotating shaft 41a counterclockwise (in the direction of arrow C in FIG. 5), the left-handed pulley 42b winds the wire 43b and the right-handed pulley 42b rewinds the wire 43a. At this time, the left-hand pulley 42b on the winding side rotates together with the rotating shaft 41a, and the motor 41, that is, the lighting device 30 moves in the direction E in the drawing. The right-handed pulley 42a on the rewinding side freely rotates with respect to the rotating shaft 41a and is pulled by the column part 29a to rewind the wire 43a. The illumination device 30 moves by a distance that the left-hand pulley 42b winds the wire 43b. If the rotating shaft 41a is rotated in the opposite direction (right rotation, arrow D direction in FIG. 5), the right-hand pulley 42a winds the wire 43a, and the lighting device 30 moves in the F direction. The left-handed pulley 42b rotates freely and is pulled by the column portion 29b, so that the wire 43b is rewound. With such a structure, the motor 41 itself moves by rotating the rotary shaft 41 a, and the lighting device 30 can move alternately between the first region 22 and the second region 23 by operating the motor 41.

  Although not shown, the motor 41 is connected to a power source that supplies electric power and a control device that controls the rotation direction, rotation time, and time of the motor 41, and can move the illumination device 30 in accordance with an instruction from an operator. In addition, the lighting device 30 can be automatically moved at a predetermined time.

  In the present embodiment, an example is shown in which wires 43a and 43b, which are linear members, are used as the traction means of the motor 41. However, the linear members are not limited to wires, and chains or timing belts may be used. .

  Another example of the moving mechanism 40 is shown in FIGS. 6 (a) and 6 (b). A moving mechanism 40 a shown in FIG. 6A is provided with a rodless cylinder 45 instead of the rail 27, and the lighting device 30 is suspended from a moving body 46 that moves along the axial direction of the rodless cylinder 45. Has been lowered. As a method for reciprocating the moving body 46 of the rodless cylinder 45, there are a pneumatic method, a hydraulic method, a magnet method, and the like. The illuminating device 30 moves because the moving body 46 moves in the width direction.

  The moving mechanism 40 b shown in FIG. 6B moves the lighting device 30 using the chain 47. The moving mechanism 40b includes a motor 48a attached to the pillar portion 29a and a pulley 48b attached to the pillar portion 29b, and the chain 47, which is a transmission element, transmits the rotation of the motor 48a to the pulley 48b. It is wound around 48a and pulley 48b. The illuminating device 30 is suspended from the chain 47, and the illuminating device 30 moves when the motor 48a rotates. The moving mechanism is not limited to the illustrated embodiment. For example, the pulley 48b may be a sprocket, and the chain 47 as a transmission element may be a timing belt.

  The cultivation system 10 can include a carbon dioxide generator 50. Carbon dioxide is a necessary element for plant photosynthesis, and it is desirable to supply it to plants simultaneously with lighting to promote photosynthesis. In this embodiment, as shown in FIG.2 and FIG.3, the carbon dioxide generator 50 is arrange | positioned at the side part of the cultivation bed 20. FIG. And as shown in FIG. 3, the carbon dioxide supply port 51 is provided so that the carbon dioxide which the carbon dioxide generator 50 generated from the board | substrate 32 of the illuminating device 30 can supply the plant 21 below in the figure. . Although not shown, the carbon dioxide generator 50 and the carbon dioxide supply port 51 are connected by a flexible tube, and carbon dioxide can be supplied from the carbon dioxide supply port 51 even if the lighting device 30 moves. it can. In the state of the cultivation system 10 shown in FIG. 3, in the first region 22, a substantially closed space is formed by the shade 35, the separator 26, and the wall portion 25, and carbon dioxide supplied from the carbon dioxide supply port 51. Stays around the plant 21 and can promote photosynthesis. In addition, since a substantially closed space is formed by the shade 35, the separator 26, and the wall portion 25, compared to a cultivation system without a wall or a separator, the supplied carbon dioxide is difficult to diffuse and the carbon dioxide is efficiently used. Can be supplied well.

  Moreover, in the cultivation system 10 shown in FIGS. 2-4, although the carbon dioxide supply port 51 is provided in the illuminating device 30, the position of a carbon dioxide supply port is not limited to this, For example, FIG.6 (c). As shown, the separator 26a of the cultivation bed 20 may be provided. In this case, the carbon dioxide supply port 51a is provided on the side surface near the top of the separator 26a and can supply the carbon dioxide supply port 51a toward the plant 21 in the first region 22 and the second region 23 (FIG. 6C). Arrow G1, G2).

  In the illustrated embodiment, carbon dioxide is supplied from the carbon dioxide supply port to increase the carbon dioxide concentration around the plant, but cultivation is performed while keeping the carbon dioxide concentration in the entire cultivation room higher than the carbon dioxide concentration in the atmosphere. May be.

  In the figure, plants in substantially the same state are shown in the first region 22 and the second region 23, but the growth state of the plants may be different. For example, one region may be a seedling state, and the other region may be a grown state immediately before shipment. Further, the first region 22 and the second region 23 may cultivate different types of plants having different growth rates. When cultivating plants in different growth states or different types of plants in the first region 22 and the second region 23, the illumination time interval may be changed according to the growth of the plant to be cultivated.

  The separator 26 may be used as a cooling device that lowers the temperature around the plant. Generally, the temperature of the nutrient solution in the water tank is set slightly lower than the temperature. Therefore, by using the separator 26 as a heat transfer plate having high heat transfer properties, the nutrient solution temperature lower than the temperature can be transferred from the portion where the separator 26 contacts the nutrient solution to the portion of the separator 26 around the plant. It becomes possible. Therefore, local cooling, for example, the temperature around the plant can be lowered. Therefore, the separator 26 is preferably made of metal, and may have a highly reflective, for example, white rust-proof coating on the surface thereof. Moreover, as shown in FIG.6 (c), the air-conditioning duct 52 for cooling is provided in the inside of the separator 26 like the carbon dioxide supply port 51a, and the plant periphery is cooled by blowing a cold wind directly from the separator 26. May be.

  In the present embodiment, the cultivation bed 20 is divided into a first region 22 and a second region 23 by a center line B extending in the length direction of the cultivation bed 20. However, the division | segmentation method of the cultivation bed 20 is not restricted to this, For example, you may divide | segment by the line extended in the width direction in the center of the length direction of the cultivation bed 20. FIG. In this case, the moving distance of the illumination device 30 that moves between the divided areas is longer than the moving distance of the illustrated embodiment. In the illustrated embodiment, the cultivation bed 20 is divided into two first regions 22 and second regions 23, but the cultivation bed has three or more regions, that is, a third region and a fourth region. It may be divided.

  Next, a cultivation method using the cultivation system 10 will be described.

  In plant factories, plants are cultivated with a lighting device, so that the plant growth rate can be increased by continuous illumination. That is, when the lighting is continued for 24 hours, the daily growth amount (cumulative photosynthesis amount) of the plant becomes the maximum. However, under a certain light intensity, if the continuous illumination time exceeds a predetermined time, the photosynthetic rate of the plant decreases and the increase in the accumulated photosynthesis amount slows down. In addition, when cultivation is performed without resting the plant by continuous illumination, a physiological disorder (chip burn) in which cells of the plant body are necrotized may occur. The incidence of chip burn increases dramatically when the continuous illumination time exceeds a predetermined time. In order to increase the growth rate, attempts have been made to increase the light intensity of the lighting device. However, as shown in FIG. 7, when the light intensity reaches a certain level, the plant photosynthesis rate reaches the saturation point and slows down. Therefore, in a plant factory, the time to illuminate continuously may be suppressed. And when it is off, the plant has stopped growing and has rested.

  The lighting time (cumulative lighting time) required before harvesting is approximately determined according to the crop. For example, in order to harvest a certain kind of lettuce, the cumulative lighting time is normally required to be 560 hours. In a conventional plant factory, assuming that lighting was performed for 10 hours per day, it took 56 days to secure a cumulative lighting time of 560 hours necessary for harvesting the lettuce. Among these, the time when the plant is resting, that is, the turn-off time is 14 hours per day. However, if a certain amount of rest time is secured per day for plants, the occurrence of physiological disorders is suppressed, and for example, a rest time of 8 hours per day is sufficient. Therefore, if the rest time per day is reduced from 14 hours to 8 hours, it is possible to shorten the number of days until harvesting while securing the cumulative lighting time required until harvesting.

  If the cultivation system 10 of this embodiment is utilized, the 1st area | region 22 and the 2nd area | region 23 can be moved so that the illuminating device 30 may reciprocate. Therefore, it is possible to illuminate the plants in each region alternately at a predetermined time interval. For example, as shown in Table 1, the plants are cultivated by alternating growth and rest every 8 hours. Can do.

  As can be seen from Table 1, when the lighting device 30 is moved and cultivated every 8 hours, the accumulated lighting time of 560 hours can be secured and the number of days until shipment can be set to 47 days. Since the time for continuously illuminating the plant is within 10 hours, the occurrence of physiological disorders is also suppressed.

  In the conventional plant factory, the rest time of the plant was secured for 14 hours or more per day, but it can be said that the rest time was secured more than necessary. On the other hand, if the cultivation system of the present invention is used, the number of days until the plant is shipped can be reduced while securing the cumulative lighting time by reducing the resting time of the plant to 8 hours.

  In the conventional plant factory, the illuminating device was provided so that all the areas of the cultivation bed could be illuminated. However, since a physiological disorder may occur, it is not possible to cultivate a plant by always lighting the lighting device, and it is necessary to turn off the light for a certain period of time in order to rest the plant. If the cultivation system of this invention is used, an illuminating device can be moved between the area | regions of the divided cultivation bed, with it lighting. Therefore, in each region, the illuminated state and the unlit state come alternately, and plants can be grown while suppressing the occurrence of physiological disorders. On the other hand, since it is always lit if attention is paid to the lighting device, the operating rate of the lighting device itself is improved. Moreover, since it is not necessary to provide an illuminating device in all the area | regions of a cultivation bed, the number of the illuminating devices installed from the conventional cultivation system can be decreased, and the initial cost of a plant factory can be reduced. In the cultivation system according to the present invention, by shortening the extinguishing time of each region, that is, the resting time of the plant, it is possible to reduce the number of days until shipment while ensuring the cumulative lighting time necessary for the growth of the plant. Many can be cultivated. Therefore, as a result, the entire cultivation cost can be reduced.

  Moreover, in the conventional plant factory, since the illuminating device was fixed, the time zone which can illuminate a plant was limited. By using the cultivation system of the present invention, it is possible to selectively illuminate any one of a plurality of divided areas by moving the illuminating device, so that the illuminating device can be used all day. is there. In other words, it is possible to freely set a time zone during which no illumination is performed. For example, it can be set not to illuminate any area between 14:00 and 16:00. Therefore, it is possible to cultivate plants while avoiding the time zone in which the power consumption of the region reaches its peak. Moreover, you may change the time slot | zone illuminated according to a season. For example, in Japan, the power consumption in summer and winter is large overall in spring and autumn. Therefore, lighting may be performed while avoiding the time period in which the power consumption reaches its peak in summer and winter, and lighting may be continued for 24 hours in spring and autumn. In this way, using the cultivation system of the present invention, in the area where the plant factory is installed, it can be illuminated in a time zone where power consumption is low, and can be turned off in a time zone where power consumption is high, Contributes to leveling power consumption.

DESCRIPTION OF SYMBOLS 1 Plant factory 10 Cultivation system 20 Cultivation bed 21 Plant 22 1st area | region 23 2nd area | region 24 Cultivation panel 25 Wall part 26 Separator 27 Rail 28 Runner 29a, 29b Pillar part 30 Illumination device 31 Illumination unit 32 Substrate 33 Reinforcement member 34 Fluorescent lamp 35 Shade 40, 40a, 40b Moving mechanism 41, 48a Motor 42, 48b Pulley 43a, 43b Wire 44a, 44b Ratchet 45 Rodless cylinder 46 Moving body 47 Chain 50 Carbon dioxide generator 51 Carbon dioxide supply port

Claims (11)

A cultivation system installed in a plant factory,
A cultivation bed that is divided into a plurality of regions and cultivates plants in each region;
A lighting device attached to the cultivation bed so as to be movable between the plurality of regions,
The said illuminating device selectively illuminates any one area | region of these several area | regions, The cultivation system characterized by the above-mentioned. The cultivation bed has an elongated shape having a length and a width,
The plurality of regions are divided by a dividing line extending in the length direction of the cultivation bed,
The cultivation system according to claim 1, wherein the lighting device is movable in the width direction of the cultivation bed.   The cultivation system of Claim 1 or 2 further provided with the moving mechanism to which the said illuminating device is moved. The moving mechanism is
A motor provided in the lighting device;
A pulley attached to the motor;
A linear member having one end fixed to the pulley and the other end extending in the moving direction of the lighting device,
The cultivation system according to claim 3, wherein the lighting device moves as the motor rotates and the pulley winds the linear member.   The moving mechanism is a rodless cylinder provided above the cultivation bed, the rodless cylinder has a moving body that moves along an axial direction thereof, and the lighting device is the moving body of the rodless cylinder. The cultivation system according to claim 3, wherein the cultivation system is hung and moved.   The moving mechanism includes a motor and a pulley provided above the cultivation bed, and a transmission element that winds the motor and the pulley and the lighting device is suspended, and the lighting device is rotated by rotating the motor. The cultivation system of Claim 3 which moves. The cultivation bed further comprises a separator that rises along a dividing line that divides the cultivation bed,
The said separator has the height which interrupts | blocks the light irradiated toward other adjacent area | regions, when the said illuminating device illuminates one area | region among these several area | regions. The cultivation system according to one item.   Furthermore, it has a carbon dioxide generator which generates carbon dioxide, and has the carbon dioxide supply port which supplies the carbon dioxide which this carbon dioxide generator generated toward a plant in the lighting device. The cultivation system according to one item.   The cultivation system according to claim 7, further comprising a carbon dioxide generator that generates carbon dioxide, and the separator having a carbon dioxide supply port that supplies the carbon dioxide generated by the carbon dioxide generator toward a plant.   The cultivation system according to any one of claims 1 to 9, wherein the lighting device is always lit. A cultivation method using the cultivation system according to any one of claims 1 to 10,
The cultivation method which illuminates by moving the said illuminating device to another area | region after illuminating one area | region of these several area | region for a predetermined time.

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