Intelligent greenhouse based on Internet of Things technology

Abstract

The utility model discloses an intelligent greenhouse based on the Internet of Things technology, and relates to the technical field of agricultural production. Comprising a base, a supporting column is fixedly connected to the base, a watering assembly is arranged at the upper end of the supporting column, the watering assembly comprises a control mechanism, a moving mechanism and a rotating mechanism, the rotating mechanism is transported to a spraying position at a fixed point through the control mechanism, and the rotating mechanism can expand the spraying range. According to the utility model, soil humidity, carbon dioxide concentration and temperature in the greenhouse can be monitored in real time, and are controlled by corresponding components without being watched by a worker, and the greenhouse is intelligent in operation, convenient and simple.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural production technical field especially relates to a wisdom greenhouse based on internet of things technique. BACKGROUND

[0002] Intelligent control is to achieve the purpose of energy saving, comfort, convenience, requires the intelligent control and monitoring of city, family, agriculture and other detailed strategy and scheme. However, the traditional intelligent control system is difficult to meet the requirements due to many constraints.

[0003] The Chinese invention patent application with the publication number CN110169286A discloses an intelligent greenhouse, relates to the field of agricultural production technology, and comprises an inner support, an outer support, a ceiling plate, a vertical support, a guide rail, a guide block, a T-shaped plate, a transmission support and a bearing, etc. The top of the wall on the left and right sides is provided with an outer support, the inner top of the outer support is provided with an inner support, the inner support is connected with the wall, and the bottom of the inner support is fixedly connected with a ceiling plate.

[0004] The above-mentioned prior art scheme has the following disadvantages: in the above-mentioned scheme, the water pump can be controlled by the control module to work, and water is sprayed on the vegetables to water the vegetables. In this way, automatic watering can be achieved to avoid water shortage of the vegetables. However, the water spraying device is relatively wide and cannot automatically rotate the angle. Moreover, such a greenhouse cannot control the temperature and humidity in the greenhouse, so it has great limitations. In the existing technical scheme, adjustments need to be made based on the actual state in the greenhouse, such as opening ventilation to reduce the temperature in the greenhouse, appropriately increasing the soil humidity, adjusting the carbon dioxide concentration in the greenhouse, etc. When manually handling such problems, the adjustments are made artificially based on experience, and the operator may be negligent, resulting in economic losses. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem of providing a greenhouse system that can monitor and feedback data indicators in the greenhouse and automatically control the greenhouse based on the data.

[0006] To solve the above technical problems, the utility model adopts the technical scheme of a wisdom greenhouse based on internet of things technology, which comprises a base, a support column fixedly connected to the base, a watering assembly provided on the upper end of the support column, a plurality of first support frames fixedly arranged on the base, an opening and closing assembly provided on the first support frame, the opening and closing assembly being above the watering assembly, the first support frame being covered by an end greenhouse film and a side greenhouse film, the end greenhouse film and the side greenhouse film together forming a sealed space, and a ventilation assembly provided on the base, the ventilation assembly being outside the sealed space.

[0007] Further, the watering assembly comprises a control mechanism, a moving mechanism and a rotating mechanism, the control mechanism is used for adjusting the position of the moving mechanism, the moving mechanism is arranged on the supporting column, and the rotating mechanism is arranged on the moving mechanism.

[0008] Further, the control mechanism comprises a first motor, a fixed plate, a first wire wheel, a second wire wheel, a driving shaft, a large gear, a small gear and a gear ring, the output shaft of the first motor is fixed with the driving shaft, the driving shaft is fixedly installed with the first wire wheel, the first wire wheel is symmetrically provided with the fixed plate, the second wire wheel, the large gear, the small gear and the gear ring at both ends, the large gear is fixed on the driving shaft, the large gear is engaged with the small gear, the small gear is rotatably installed on the fixed plate, the small gear is engaged with the gear ring, the gear ring is fixed on the second wire wheel, the first wire wheel is wound with a first rope, and the second wire wheel is wound with a second rope.

[0009] Further, the moving mechanism comprises a first rope, a second rope, a fixed pulley one, a fixed pulley two, a T-shaped piece, a gear, a rack, a sliding block, a sliding plate, a slide rail, a supporting plate, a fixed pulley three and a lower base, the first rope is wound on the fixed pulley one and the fixed pulley two, and the other end of the first rope is finally fixed on the T-shaped piece, the fixed pulley one and the fixed pulley two are rotatably installed on the upper base, the T-shaped piece is rotatably installed with the gears at both ends, the T-shaped piece is slidably installed on the slide groove on the lower base at both ends, each gear is engaged with the rack, the second rope is provided with two, each second rope is wound on the fixed pulley three, and the other end of the fixed pulley three is finally connected to the sliding block, the fixed pulley three is rotatably installed on the lower base, the sliding blocks are symmetrically arranged on the two sides of the T-shaped piece, the sliding plate is fixedly installed on the bottom end of the T-shaped piece, the T-shaped piece is slidably installed on the slide groove on the lower base, the slide rail is fixed on the lower base, and the supporting plate is fixed on the sliding plate, so that the sliding plate drives the supporting plate to slide on the slide rail through the traction of the first rope and the second rope.

[0010] Further, the rotating mechanism comprises an electric cylinder, a rack plate, a second gear, a watering plate, a water tank, a fixed ring, a signal receiver and a humidity signal transmitter, the rack plate is slidably installed on the sliding plate and engaged with the second gear, the second gear is rotatably installed on the sliding plate, the second gear is symmetrically fixedly installed with the watering plates at both ends, a plurality of fixed rings are fixed below the sliding plate, the water tank and the signal receiver are fixedly installed on the fixed rings, and the humidity signal transmitters are uniformly distributed in the soil.

[0011] Further, a plurality of curved spray heads are arranged on both sides of the watering plate, straight spray heads are arranged on other parts, and a water delivery pipe is used for connecting the watering plate and the water tank, so that the water source enters the inside of the watering plate.

[0012] Furthermore, the opening and closing assembly includes a second motor, a winding post, a coil, a baffle, a baffle sleeve, a spring, a fixing block, a second support frame, and an upper base. The upper base is mounted on the fixing block in the middle position. Three fixing blocks are evenly arranged on the curved part of the first support frame. Second support frames are distributed on both sides of the first support frame for auxiliary fixing. The winding post is rotatably mounted on the upper base, and a coil is wound on the winding post. The other end of the coil is fixed to the baffle. The baffle is slidably mounted inside the baffle sleeve. A cube is fixed on the baffle and slidably mounted on the first support frame. The two sides of the baffle sleeve are fixed to the second support frame, and the two ends of the baffle sleeve are fixed to adjacent fixing blocks. One end of the spring is fixed to the fixing block, and the other end of the spring is fixed to the baffle. Identical opening and closing assemblies are arranged on both sides of the fixing block in the middle position. The upper base and the lower base are fixedly connected.

[0013] Furthermore, the ventilation assembly includes a fixed shaft, a first blade, a second blade, a lever, and an outer cylinder. One end of the outer cylinder is mounted on the end film, and a fixed shaft is fixed inside the outer cylinder. The first blade and the second blade are rotatably mounted on the fixed shaft. A blocking block is provided on one side of the first blade and the second blade. The blocking block is fixed inside the outer cylinder and is used to limit the rotation area of ​​the first blade and the second blade. A sliding groove is provided on the outer cylinder, and the lever is slidably mounted in the sliding groove on the outer cylinder.

[0014] The advantages of this utility model compared with the prior art are: (1) This utility model sets a first rope, a second rope, a fixed pulley one, a fixed pulley two, a T-shaped part, a gear, a rack, a sliding block, a sliding plate, a slide rail, a support plate, a fixed pulley three, and a lower base. Through the control mechanism, the movement directions of the first rope and the second rope are always opposite. By controlling the forward and reverse rotation of the motor, the direction of the sprinkler component can be changed at any time. There is no need for springs or other parts to perform reset operations. It has high safety performance, is controllable, and can be used for a long time.

[0015] (2) By setting up an electric cylinder, a rack plate, a second gear, a water spray plate, a water tank, a fixing ring, a signal receiver, and a humidity signal transmitter, this utility model can accurately transport the water spraying device to a dry position for precise spraying. The second gear drives the water spray plate to rotate back and forth, and the different specifications of nozzles distributed on the water spray plate can increase the water spraying area. It has high working efficiency, wide range, and high practical performance.

[0016] (3) This utility model sets up a second motor, winding column, coil, baffle, baffle sleeve, spring, fixing block, second support frame, and upper base, and uses ropes to open and close the air inlet, which can effectively change the carbon dioxide concentration and temperature inside the greenhouse. In addition, with the ventilation components at the end, the device is more intelligent, does not require staff to watch over it, and is convenient and simple. Attached Figure Description

[0017] Figure 1 is an external structure schematic diagram of the intelligent greenhouse based on the internet of things technology.

[0018] Figure 2 is Figure 1 an internal structure schematic diagram.

[0019] Figure 3 is a structure schematic diagram of the control mechanism in the watering assembly.

[0020] Figure 4 is a moving mechanism structure schematic diagram in the watering assembly.

[0021] Figure 5 is a rotating mechanism schematic diagram in the watering assembly.

[0022] Figure 6 is a partial structure schematic diagram of the rotating mechanism.

[0023] Figure 7 is a structure schematic diagram of the watering plate.

[0024] Figure 8 is an opening and closing assembly structure schematic diagram.

[0025] Figure 9 is a ventilation assembly structure schematic diagram.

[0026] Fig. 1 is a base; 2 is an end place shed film; 3 is a side shed film; 4 is a support column; 5 is a first support frame; 101 is a first motor; 102 is a fixed plate; 103 is a first wire wheel; 104 is a second wire wheel; 105 is a driving shaft; 106 is a large gear; 107 is a small gear; 108 is a gear ring; 201 is a first rope; 202 is a second rope; 203 is a fixed pulley one; 204 is a fixed pulley two; 205 is a T-shaped piece; 206 is a gear; 207 is a rack; 208 is a sliding block; 209 is a sliding plate; 210 is a sliding rail; 211 is a supporting plate; 212 is a fixed pulley three; 213 is a lower base; 301 is an electric cylinder; 302 is a rack plate; 303 is a second gear; 304 is a watering plate; 305 is a water tank; 306 is a fixed ring; 3001 is a curved spray head; 3002 is an upright spray head; 3003 is a water delivery pipe; 307 is a signal receiver; 308 is a humidity signal transmitter; 401 is a second motor; 402 is a winding column; 403 is a coil; 404 is a baffle; 405 is a baffle sleeve; 406 is a spring; 407 is a fixed block; 408 is a second support frame; 409 is an upper base; 501 is a fixed shaft; 502 is a first blade; 503 is a second blade; 504 is a lever; 505 is an outer cylinder; 506 is a blocking block. DETAILED DESCRIPTION

[0027] The technical scheme of the utility model is further illustrated below in combination with the drawings and through specific embodiments.

[0028] Among them, the drawing is only used for example explanation, the representation is only schematic diagram, and is not real object drawing, and cannot be understood as the limitation to this patent; in order to better illustrate the embodiment of the utility model, some components of the drawing will be omitted, enlarged or reduced, and the size of actual product is not represented; for those skilled in the art, it is understandable that some well-known structures and their description in the drawing can be omitted.

[0029] Embodiment: as Figures 1-9 The utility model discloses a wisdom greenhouse based on internet of things technology, including base 1, the support column 4 is fixedly connected on base 1, and the upper end of support column 4 is provided with watering assembly, and the first support frame 5 of even fixed setting of base 1 is provided with opening and closing assembly, and opening and closing assembly is above watering assembly, and the periphery of first support frame 5 is covered by end place shed membrane 2 and side shed membrane 3, and end place shed membrane 2 and side shed membrane 3 constitute a sealed space together, and base 1 is provided with ventilation assembly, and ventilation assembly is outside sealed space.

[0030] As Figure 3 The control mechanism includes first motor 101, fixed plate 102, first line wheel 103, second line wheel 104, driving shaft 105, large gear 106, small gear 107, gear ring 108, and the output shaft of first motor 101 is fixed with driving shaft 105, and first line wheel 103 is fixedly installed on driving shaft 105, and fixed plate 102, second line wheel 104, large gear 106, small gear 107 and gear ring 108 are symmetrically arranged at both ends of first line wheel 103, large gear 106 is fixed on driving shaft 105, large gear 106 is engaged with small gear 107, small gear 107 is rotatably installed on fixed plate 102, small gear 107 is engaged with gear ring 108, and gear ring 108 is fixed on second line wheel 104, first rope 201 is wound on first line wheel 103, and second rope 202 is wound on second line wheel 104.

[0031] As Figure 4As shown, the moving mechanism comprises a first rope 201, a second rope 202, a fixed pulley one 203, a fixed pulley two 204, a T-shaped piece 205, a gear 206, a rack 207, a sliding block 208, a sliding plate 209, a slide rail 210, a supporting plate 211, a fixed pulley three 212, a lower base 213, the first rope 201 is wound around the fixed pulley one 203 and the fixed pulley two 204, and the other end of the first rope 201 is finally fixed on the T-shaped piece 205, the fixed pulley one 203 and the fixed pulley two 204 are rotatably installed on the upper base 409, the gear 206 is rotatably installed at the two ends of the T-shaped piece 205, the T-shaped piece 205 is slidably installed in a sliding groove on the lower base 213, each gear 206 is engaged with the rack 207, the second rope 202 is provided with two, each second rope 202 is wound around the fixed pulley three 212, and the other end of the fixed pulley three 212 is finally connected to the sliding block 208, the fixed pulley three 212 is rotatably installed on the lower base 213, the sliding block 208 is symmetrically arranged on the two sides of the T-shaped piece 205, the sliding plate 209 is fixedly installed on the bottom end of the T-shaped piece 205, the T-shaped piece 205 is slidably installed in a sliding groove on the lower base 213, the slide rail 210 is fixed on the lower base 213, and the supporting plate 211 is fixed on the sliding plate 209, so that the sliding plate 209 drives the supporting plate 211 to slide on the slide rail 210 under the traction of the first rope 201 and the second rope 202.

[0032] As shown in Figures 5-6 The rotating mechanism comprises a rack plate 302, a second gear 303, a sprinkling plate 304, a water tank 305, a fixed ring 306, a signal receiver 307, and a humidity signal transmitter 308, the rack plate 302 is slidably installed on the sliding plate 209, the rack plate 302 is engaged with the second gear 303, the second gear 303 is rotatably installed on the sliding plate 209, the second gear 303 is symmetrically fixedly installed with the sprinkling plate 304 at the two ends, the fixed ring 306 is fixed below the sliding plate 209, the water tank 305 and the signal receiver 307 are fixedly installed on the fixed ring 306, and the humidity signal transmitter 308 is uniformly distributed in the soil.

[0033] As shown in Figure 7 The sprinkling plate 304 is provided with a plurality of curved spray heads 3001 on the two sides, is provided with upright spray heads 3002 at other parts, and a water delivery pipe 3003 is used to connect the sprinkling plate 304 and the water tank 305, so that the water source enters the inside of the sprinkling plate 304.

[0034] As shown in Figure 8As shown, the opening and closing assembly includes a second motor 401, a winding column 402, a coil 403, a baffle 404, a baffle sleeve 405, a spring 406, a fixed block 407, a second support frame 408, and an upper base 409. The upper base 409 is mounted on the fixed block 407 at the middle position. Three fixed blocks 407 are uniformly arranged on the curved portion of the first support frame 5. The second support frames 408 are distributed on both sides of the first support frame 5 for auxiliary fixation. The winding column 402 is rotatably mounted on the upper base 409. The coil 403 is wound around the winding column 402. The other end of the coil 403 is fixed to the baffle 404. The baffle 404 is slidably mounted in the baffle sleeve 405. A square block is fixed to the baffle 404. The square block is slidably mounted on the first support frame 5. The baffle sleeve 405 is fixed on both sides of the second support frame 408. The baffle sleeve 405 is fixed on the adjacent fixed blocks 407 at both ends. One end of the spring 406 is fixed to the fixed block 407. The other end of the spring 406 is fixed to the baffle 404. The same opening and closing assembly is arranged on both sides of the fixed block 407 at the middle position. The upper base 409 is fixedly connected with the lower base 213.

[0035] As shown in the drawings, Figure 9 As shown, the ventilation assembly includes a fixed shaft 501, a first blade 502, a second blade 503, a lever 504, and an outer cylinder 505. One end of the outer cylinder 505 is arranged on the end shelf film 2. The fixed shaft 501 is fixed inside the outer cylinder 505. The first blade 502 and the second blade 503 are rotatably mounted on the fixed shaft 501. The first blade 502 and the second blade 503 are provided with a blocking block 506. The blocking block 506 is fixed in the outer cylinder 505 and is used to limit the rotation area of the first blade 502 and the second blade 503. A sliding groove is arranged on the outer cylinder 505. The lever 504 is slidably mounted in the sliding groove on the outer cylinder 505.

[0036] The utility model discloses working principle is: (1) before using the subassembly of each part is assembled, is placed to corresponding position, when humidity signal transmitter 308 detects that the soil humidity is deficient, and the signal makes first motor 101 start, thereby driving shaft 105 rotates under the drive of first motor 101, driving shaft 105 drives first line wheel 103 and big gear 106 rotation, pinion 107 engages big gear 106 and gear ring 108 respectively, so gear ring 108 rotates, gear ring 108 drives second line wheel 104 rotation, and first line wheel 103 and second line wheel 104 rotation direction is opposite, so first rope 201 is continuously wound on first line wheel 103, and second rope 202 on second line wheel 104 starts to peel, and first rope 201 changes the direction after passing through fixed pulley one 203 and fixed pulley two 204, makes T piece 205 slide on the slide groove of lower base 213, and the gear 206 moves on the rack 207 in conjunction, and the cooperation of gear 206 and rack 207 can reduce the wear of parts, and T piece 205 can drive sliding plate 209 and supporting plate 211 to move, until signal receiver 307 can receive the effect of humidity signal transmitter 308, first motor 101 stops.

[0037] After first motor 101 is stationary, drive electric cylinder 301, and electric cylinder 301 carries out the reciprocating extension of continuously, drives rack plate 302 to move reciprocatingly in the groove on sliding plate 209, and rack plate 302 makes second gear 303 reciprocate, and the sprinkling plate 304 reciprocates in space, so that the sprinkling plate 304 can spray water to the specified position.

[0038] Among them, the curved spray head 3001 on the sprinkling plate 304 facilitates to expand the spraying area, the vertical spray head 3002 is used for dry point emphasis spraying, and the water delivery pipe 3003 is used for water source delivery.

[0039] (2) when the device needs to spray other points, the relative position of humidity signal transmitter 308 and signal receiver 307 is controlled to reverse the motor, so that the spraying assembly can be moved to the corresponding position.

[0040] In order to realize the control of the temperature and the carbon dioxide concentration in the greenhouse, the corresponding signal device can be arranged in the greenhouse to control the opening and closing state of the second motor 401. When the second motor 401 is started, the winding column 402 is rotated, the coil 403 is continuously wound on the winding column 402, the winding column 402 drives the baffle 404 to slide on the baffle sleeve 405, the top square of the baffle 404 also slides on the baffle sleeve 405, the fixed block 407 is stretched, finally the baffle 404 is retracted into the baffle sleeve 405, and the opening state is achieved. Air can enter from the opening, the air pressure in the interior is increased, the airflow drives the first blade 502 and the second blade 503 to rotate on the fixed shaft 501, so that air flows out from the opened gap, and the carbon dioxide is heavier than air, so that the discharge is rapid.

[0041] (3) When the staff needs to enter, the shifting rod 504 needs to be manually slid on the sliding groove of the outer cylinder 505, and the position of the shifting rod 504 is fixed. At this moment, the greenhouse can be opened to enter, so as to avoid the influence of wind on the temperature, humidity and other conditions in the greenhouse.

[0042] The utility model is not limited to the above-mentioned specific implementation, and the skilled person in the art can make various changes without creative labor, and all the changes fall within the protection scope of the utility model.

Claims

1. An Internet of Things technology-based smart greenhouse, characterized in that: The utility model provides a kind of movable greenhouse, including base (1), end place shed film (2), side shed film (3), support column (4), first support frame (5), watering assembly, opening and closing assembly, ventilation assembly, the end place shed film (2), side shed film (3) are all set on first support frame (5), the support column (4), first support frame (5), ventilation assembly are all set on base (1), the watering assembly is set on support column (4), and the opening and closing assembly is set on first support frame (5); The watering assembly includes control mechanism, moving mechanism, rotating mechanism, the control mechanism is used to adjust the position of moving mechanism, the moving mechanism is arranged on the support column (4), and the rotating mechanism is arranged on the moving mechanism.

2. The intelligent greenhouse based on the Internet of Things according to claim 1, characterized in that: The moving mechanism includes first rope (201), second rope (202), fixed pulley one (203), fixed pulley two (204), T-shaped piece (205), gear (206), rack (207), sliding block (208), sliding plate (209), slide rail (210), supporting plate (211), fixed pulley three (212), lower base (213), the first rope (201) and second rope (202) are wound on control mechanism, so that the moving direction of first rope (201) and second rope (202) is always opposite, the first rope (201) is wound on fixed pulley one (203) and fixed pulley two (204), and finally the other end of first rope (201) is fixed on T-shaped piece (205), the fixed pulley one (203) and fixed pulley two (204) are both installed on upper base (409), and the T-shaped piece (205) is symmetrically provided with sliding block (208) on both sides, and the T-shaped piece (205) is slidably installed on the slide groove on the lower base (213), each gear (206) is engaged with rack (207), the second rope (202) is provided with two, the second rope (202) is wound on fixed pulley three (212), and finally the other end of fixed pulley three (212) is connected to sliding block (208), the fixed pulley three (212) is rotatably installed on the lower base (213), the sliding block (208) is symmetrically arranged on both ends of the T-shaped piece (205), the sliding plate (209) is arranged on the bottom end of the T-shaped piece (205), and the T-shaped piece (205) is slidably installed on the slide groove on the lower base (213), the slide rail (210) is fixed on the lower base (213), the supporting plate (211) is fixed on the sliding plate (209), and the sliding plate (209) drives the supporting plate (211) to slide on the slide rail (210) by the traction of first rope (201) and second rope (202). 3.The smart greenhouse based on the Internet of Things technology according to claim 1, characterized in that: The control mechanism includes a fixed plate (102), a first line wheel (103), a second line wheel (104), a driving shaft (105), a large gear (106), a small gear (107), a gear ring (108), the driving shaft (105) is fixedly installed with the first line wheel (103), the first line wheel (103) is symmetrically provided with the fixed plate (102), the second line wheel (104), the large gear (106), the small gear (107) and the gear ring (108) at both ends, the large gear (106) is fixed on the driving shaft (105), the large gear (106) is meshed with the small gear (107), the small gear (107) is arranged on the fixed plate (102), the small gear (107) is meshed with the gear ring (108), the gear ring (108) is fixed on the second line wheel (104), the first line wheel (103) is wound with a first rope (201), and the second line wheel (104) is wound with a second rope (202).

4. The intelligent greenhouse based on the Internet of Things according to claim 1, characterized in that: The rotating mechanism includes a rack plate (302), a second gear (303), a watering plate (304), a water tank (305), a fixed ring (306), a signal receiver (307) and a humidity signal transmitter (308), the rack plate (302) is slidingly installed on the sliding plate (209), the rack plate (302) is meshed with the second gear (303), the second gear (303) is rotatably installed on the sliding plate (209), the second gear (303) is symmetrically installed with the watering plate (304) at both ends, a plurality of fixed rings (306) are arranged below the sliding plate (209), the water tank (305) and the signal receiver (307) are installed on the fixed ring (306), and the humidity signal transmitter (308) is uniformly distributed in the soil. 5.The smart greenhouse based on the Internet of Things technology according to claim 1, characterized in that: The opening and closing assembly includes a winding post (402), a coil (403), a baffle (404), a baffle sleeve (405), a spring (406), a fixing block (407), a second support frame (408), and an upper base (409). The upper base (409) is mounted on the fixing block (407). The fixing block (407) is evenly distributed at three positions in the curved portion of the first support frame (5). The second support frame (408) is provided on both sides of the first support frame (5) for auxiliary fixing. The winding post (402) is disposed on the upper base (409), and a coil is wound on the winding post (402). 403), the other end of the coil (403) is fixed on the baffle (404), the baffle (404) is slidably installed in the baffle sleeve (405), a cube is fixed on the baffle (404), the cube is slidably installed on the first support frame (5), the two sides of the baffle sleeve (405) are fixed on the second support frame (408), the two ends of the baffle sleeve (405) are fixed on the adjacent fixing block (407), one end of the spring (406) is fixed on the fixing block (407), the other end of the spring (406) is fixed on the baffle (404), and the upper base (409) is fixedly connected to the lower base (213). 6.The smart greenhouse based on the Internet of Things technology according to claim 1, characterized in that: The ventilation assembly includes a fixed shaft (501), a first blade (502), a second blade (503), a lever (504), and an outer cylinder (505). One end of the outer cylinder (505) is set on the end film (2). The fixed shaft (501) is installed inside the outer cylinder (505). The first blade (502) and the second blade (503) are rotatably mounted on the fixed shaft (501). A blocking block (506) is provided on one side of the first blade (502) and the second blade (503). The blocking block (506) is used to limit the rotation area of ​​the first blade (502) and the second blade (503). A sliding groove is provided on the outer cylinder (505). The lever (504) is slidably installed in the sliding groove on the outer cylinder (505).

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