An IoT-based sprinkler irrigation and bird-repellent system for grain experimental fields

Abstract

The present invention belongs to the technical field of agricultural machinery, and specifically relates to an Internet of Things (IoT) sprinkler irrigation and bird-repelling integrated system dedicated to a grain experimental field, comprising a control unit, and a suspended sprinkler irrigation and bird-repelling device connected to the control end of the control unit. The suspended sprinkler irrigation and bird-repelling device comprises a beam supported by a group of spaced support rods, a water spray pipe arranged above the beam, a track arranged below the water spray pipe along the length direction of the beam, and a trolley arranged in conjunction with the track. The trolley is provided with an audible and visual alarm, and a camera with a camera range covering a monitoring area is provided outside the experimental field. The system can quickly identify birds that fall into the experimental field and expel the birds within the range close to the birds in the monitoring area. It is only necessary to obtain a rough landing range of the birds. The algorithm is simple, the identification is fast, and the cost of bird repelling is low.

Description

Technical Field

[0001] The present invention belongs to the technical field of agricultural machinery, and in particular relates to an Internet of Things (IoT) sprinkler irrigation and bird-repellent integrated system dedicated to grain experimental fields. Background Art

[0002] During the harvest season, crops, especially rice, wheat and other grains, will become one of the targets of birds' crazy pecking. Ordinary farmland needs to ensure production and increase economic income, while experimental fields are usually small plots of land for planting and research. In order to ensure the reliability of grain research data, the requirements for grain results are even more accurate to the grain. In order to protect the crops in the experimental fields from being pecked by birds, the traditional bird-repelling method is to use scarecrows or pull protective nets around the fields. The protective nets are simple and effective, but they can easily cause casualties among birds. Scarecrows do not harm birds, but they cannot move and do not make any sound. In actual applications, the bird-repelling effect is minimal. How to protect birds from being pecked by birds in the experimental fields while protecting them from harm has become an urgent problem to be solved. On the other hand, in order to facilitate observation and recording, experimental fields are usually set up in locations close to residential areas. While effectively repelling birds, reducing interference with residential areas is also a problem that needs to be solved. Summary of the Invention

[0003] In order to solve the problems existing in the above-mentioned prior art, the present invention provides an Internet of Things sprinkler and bird-repellent integrated system dedicated to grain experimental fields, which can quickly determine the range where birds land and perform sound and light bird-repellent operations within this range. It can not only effectively repel birds without causing casualties to birds, but also prevent large-scale sound and light bird-repellent from interfering with residential areas, ensuring that the grain in the experimental fields is protected from being pecked by birds, and thus providing reliable data for scientific research.

[0004] The specific technical solution adopted in the present invention is:

[0005] A special Internet of Things sprinkler irrigation and bird-repellent integrated system for millet experimental fields includes a control unit and a suspended sprinkler irrigation and bird-repellent device connected to the control end of the control unit. The key point is that the suspended sprinkler irrigation and bird-repellent device includes a beam supported by a group of spaced support rods, a water spray pipe arranged above the beam, a track arranged below the water spray pipe along the length of the beam, and a trolley arranged in conjunction with the track, the trolley is provided with an audible and visual alarm, the beam is located in the experimental field, and a group of cameras arranged in rows along the beam are provided outside the experimental field. A group of rectangular monitoring areas are provided along the length of the beam, the cameras include a first camera and a second camera located on one side of the monitoring area, the first camera and the second camera are at the same distance from the beam, and the camera range of the first camera and the second camera covers the monitoring area, the controlled ends of the water spray pipe, the trolley and the audible and visual alarm are respectively connected to the control end of the control unit, and the information collection end of the control unit is respectively connected to the information sending ends of the first camera and the second camera.

[0006] The system also includes a method for using the suspended sprinkler bird repellent device, which includes the following steps:

[0007] S1. Number each support pole in a single monitoring area, from left to right as A1, A2, A3...A m 、A m+1 …A n 、A n+1 ...A z ;

[0008] S2, the first camera and the second camera capture images D1 and D2 when the bird lands in the monitoring area, and images D1 and D2 are sent to the control unit;

[0009] S3. The control unit determines the eviction area based on the images captured by the two cameras:

[0010] S301, in image D1, the bird is hidden by the support pole A n With A n+1 In image D2, the bird is hidden by support pole A. m With A m+1 It means that the bird is located at A when the image is captured. m With A n+1 Between the numbered support rods, determine A m With A n+1 The area between is the expulsion area;

[0011] S302: In image D1, the bird is hidden by support pole A. z When the second camera is between the two cameras, the bird in image D2 is blocked by the support pole A. m 、A m+1 When between m+1 With A z The area between the two poles is used as the expulsion area; in image D1, the bird is blocked by the support pole A. n 、A n+1 When the bird is blocked between the support pole A1 and the first camera in the image D2, it is determined that A1 and A n between as an expulsion area;

[0012] S4. The control unit controls the trolley to move back and forth several times in the expulsion area on the track, and at the same time activates the sound and light alarm to perform bird expulsion operations.

[0013] Step S301 also includes the following steps for determining a highly suspected site in the expulsion area:

[0014] After the first camera and the second camera are installed in place, the coordinate axis is established with the first camera as the origin, the line between the first camera and the second camera as the x-axis, and the vertical line between the first camera and the beam as the y-axis; the first camera and the second camera are respectively connected to the midpoint of a section of the beam sandwiched between two adjacent support rods to form a position reference line, and the angle between each position reference line and the x-axis is measured. After S301 determines the support rod intervals blocked by the bird images in image D1 and image D2, the intersection of the two sets of position reference lines is the highly suspected site. According to the preset position reference lines and angles, the coordinates (x 高 ,y 高 ).

[0015] In step S4, the control unit controls the trolley to move back and forth on the track within the expulsion area, and the trolley stays for 3-5 seconds when it moves to the height x.

[0016] A group of spaced metal sheets are arranged on one side of the rail on the crossbeam, and a paddle in contact with the metal sheets is arranged on the trolley.

[0017] The beneficial effects of the present invention are:

[0018] In the present invention, the beam is supported by a group of support rods arranged at intervals, and a group of monitoring areas are set along the length direction of the beam in the experimental field. A first camera and a second camera located outside each monitoring area are used to monitor each monitoring area. When a bird lands, the two cameras simultaneously capture photos and send them to the control unit. The control unit selects the range between a certain support rod and another support rod as the expulsion range after calculation, and drives the trolley to move back and forth in the expulsion range. While moving back and forth in the expulsion range, the sound and light alarm is activated to start the bird-repelling operation. This method only repels birds in a small range close to the birds, and has little impact on residential areas. The movement of the trolley and the sound and light operation can frighten the birds and keep them away from the experimental field, effectively protecting the grain in the experimental field from being pecking without causing casualties to the birds. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the system control connection of the present invention;

[0021] In the accompanying drawings, 1. control unit, 2. support rod, 3. crossbeam, 4. water pipe, 5. track, 6. trolley, 7. sound and light alarm, 8. monitoring area, 9. first camera, 10. second camera, 11. first position reference line, 12. second position reference line. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0023] Specific implementation examples Figure 1-2 As shown, an IoT sprinkler irrigation and bird-repelling integrated system for millet experimental fields includes a control unit 1, a suspended sprinkler irrigation and bird-repelling device connected to the control end of the control unit 1, the suspended sprinkler irrigation and bird-repelling device includes a beam 3 supported by a group of spaced support rods 2, a water spray pipe 4 arranged above the beam 3, a track 5 arranged below the water spray pipe 4 along the length direction of the beam 3, and a trolley 6 matched with the track 5, the trolley 6 is provided with an audible and visual alarm 7, the beam 3 is located in the experimental field, and a group of cameras arranged in rows along the beam 3 are provided outside the experimental field. The beam 3 and the cameras are higher than the grains, and a group of rectangular monitoring areas 8 are provided along the length direction of the beam 3. The cameras include a first A camera 9 and a second camera 10 are provided. The distances between the first camera 9 and the second camera 10 and the crossbeam 3 are the same. A line is connected between the first camera 9 and the support rod 2 farthest from the first camera 9 , and a line is connected between the second camera 10 and the support rod 2 farthest from the second camera 10. The intersection of the two lines is the edge of the experimental field. The imaging range of the first camera 9 and the second camera 10 covers the monitoring area 8. The first camera 9 and the second camera 10 are located on the same horizontal line. The controlled ends of the water pipe 4, the trolley 6 and the sound and light alarm 7 are respectively connected to the control end of the control unit 1. The information collection end of the control unit 1 is respectively connected to the information sending end of the first camera 9 and the second camera 10. A water spray pipe 4 and a trolley 6 with an audible and visual alarm 7 are provided on the crossbeam 3. During the grain sowing and growth period, the control unit 1 controls the water spray pipe 4 to irrigate the experimental field according to actual conditions to ensure the normal growth of the grain; when the grain is approaching the harvest period, the control unit 1 performs bird-repelling operations based on the camera and the trolley 6; the structure is simple, and bird-repelling and irrigation are integrated into one, and there is no need to set up separate bird-repelling equipment in the experimental field.

[0024] The following is a detailed description of the method for using a suspended sprinkler bird repellent device for a monitoring area 8. The method for using the suspended sprinkler bird repellent device includes the following steps:

[0025] S1. Number each support rod 2 in a single monitoring area 8. In this embodiment, there are 7 support rods in a single monitoring area, which are A1, A2, A3, A4, A5, A6, and A7 from left to right.

[0026] S2, the first camera 9, and the second camera 10 simultaneously capture images D1 and D2 when the bird lands in the monitoring area 8, and the images D1 and D2 are sent to the control unit 1;

[0027] S3. The control unit 1 determines the expulsion area based on the images captured by the two cameras:

[0028] S301, in image D1, the bird is hidden in A n With A n+1 In image D2, the bird is hidden in A m With A m+1 It means that the bird was located at A when the photo was taken. m With A n+1 Between the numbered support rods 2, if m+1=n or n-1, then determine A m With A n+1 The area between is the expulsion area;

[0029] In this embodiment, the description is as follows: in image D1, the bird is hidden between A4 and A5, and in image D2, the bird is hidden between A2 and A3. This means that when the image was captured, the bird was located between the support poles 2 numbered A2 and A5. Therefore, the area between A2 and A5 is determined to be the expulsion area.

[0030] The highly suspected locations where birds land can be determined in the expulsion area. The steps of the determination method are as follows: after the first camera 9 and the second camera 10 are installed in place, the first camera 9 is used as the origin o, the line between the first camera 9 and the second camera 10 is used as the x-axis, and the vertical line between the first camera 9 and the beam 3 on the horizontal plane is used as the y-axis to establish a coordinate axis, record the position of the second camera 10 as b and the vertical point from the first camera 9 to the beam 3 as c, and record the length of ob; pre-connect the first camera 9 and the second camera 10 with the midpoint of a section of the beam 3 sandwiched between two adjacent support rods 2 to form a position reference line, and measure the angle between each position reference line and the x-axis, and determine the birds in image D1 and image D2 in S3. After the images cover the interval of the support pole 2 respectively, the intersection of the two sets of position reference lines is the highly suspected site. Let the position reference line formed by the first camera 9 and the midpoint of the beam 3 sandwiched by A4 and A5 be the first position reference line 11, and the position reference line formed by the second camera 10 and the midpoint of the beam 3 sandwiched by A2 and A3 be the second position reference line 12. The angle between the first position reference line 11 and the x-axis is α, and the angle between the second position reference line 12 and the x-axis is β. The intersection point of the first position reference line 11 and the second position reference line 12 is e, and the foot of the perpendicular between the intersection point e and the x-axis is f. The coordinates of the intersection point e are calculated according to trigonometric functions. The coordinates of the intersection point e are the coordinates of the highly suspected site, and the approximate location where the bird landed is determined;

[0031] The coordinates of the highly suspected sites are calculated as follows: of = cotα × ef, fb = cotβ × ef, of + fb = ob, y 高 =ef=ob / (cotα+cotβ), ob, α, β are all known parameters, so the length of ef can be calculated, x 高=of = ef / tanα, and the length of of can be obtained to obtain the coordinates of the highly suspected site (x 高 ,y 高 );

[0032] S302: When the bird in D1 is blocked between A7 and the second camera 10, and when the bird in D2 is blocked between A2 and A3, the area between A3 and A7 is used as the expulsion area;

[0033] S4, the control unit 1 controls the trolley 6 to move back and forth several times in the expulsion area on the track 5, and at the same time starts the sound and light alarm 7 to perform the bird-repelling operation, and the trolley 6 stays for 3-5 seconds when it moves to the x-axis coordinate of a highly suspected site on the track, that is, the extension line of ef. If there is no highly suspected site, there is no need to stay.

[0034] The trolley 6 moves back and forth in the expulsion range and activates the sound and light alarm 7 at the same time, effectively expelling birds by the movement + sound and light method, avoiding the simultaneous issuance of sound and light alarms to drive away birds in the entire monitoring area 8. This method only drives away birds in a small range close to the birds, and the impact of sound and light on residential areas is very small; the movement of the trolley and the sound and light operation can frighten the birds and keep them away from the experimental fields, effectively protecting the grain in the experimental fields from being pecking without causing casualties to the birds.

[0035] The first camera 9 and the second camera 10 are both infrared cameras.

[0036] A group of spaced metal sheets are provided on the beam 3 on one side of the track 5, and a paddle is provided on the trolley 6 to contact the metal sheets. When the trolley 6 moves along the track 5, the paddle paddles the metal sheets, causing the metal sheets to make a noise, which disturbs the birds and has a certain effect on driving away the birds. The sound made by the collision between the paddle and the metal sheets is relatively small and will not cause noise impact on residential areas.

[0037] The system can quickly identify birds that land in the experimental field and expel them from the area close to the birds within the monitoring area. It only needs to obtain a rough range of the bird landing. It requires little data, has a simple algorithm, and can quickly identify birds. It does not require the use of high-precision computing electronic components, and the cost of bird repelling is low.

Claims

1. A millet experimental field-specific Internet of Things sprinkler irrigation and bird repellent integrated system, comprising a control unit (1), and a suspended sprinkler irrigation and bird repellent device connected to a control end of the control unit (1), characterized in that: The suspended sprinkler bird-repelling device comprises a beam (3) supported by a group of spaced support rods (2), a water spray pipe (4) arranged above the beam (3), a track (5) arranged below the water spray pipe (4) along the length direction of the beam (3), and a trolley (6) matched with the track (5), wherein the trolley (6) is provided with an audible and visual alarm (7), the beam (3) is located in the test field, and a group of cameras arranged in rows along the beam (3) are provided outside the test field, and a group of rectangular monitoring areas (8) are provided along the length direction of the beam (3). The camera comprises a first camera (9) and a second camera (10) located on one side of a monitoring area (8); the first camera (9) and the second camera (10) are at the same distance from the crossbeam (3); the camera ranges of the first camera (9) and the second camera (10) cover the monitoring area (8); the controlled ends of the water spray pipe (4), the trolley (6) and the sound and light alarm (7) are respectively connected to the control end of the control unit (1); and the information collection end of the control unit (1) is respectively connected to the information sending end of the first camera (9) and the second camera (10); The system also includes a method for using the suspended sprinkler bird repellent device, which includes the following steps: S1. Number each support rod (2) in a single monitoring area (8), from left to right, A1, A2, A3...A m 、A m+1 …A n 、A n+1 ...A z ; S2, the first camera (9), and the second camera (10) simultaneously capture images D1 and D2 when the bird lands in the monitoring area (8), and the images D1 and D2 are sent to the control unit (1); S3. The control unit (1) determines the expulsion area based on the images captured by the two cameras: S301, in image D1, the bird is hidden by the support pole (2) A n With A n+1 In image D2, the bird is hidden by the support pole (2)A m With A m+1 It means that the bird is located at A when the image is captured. m With A n+1 Between the numbered support rods (2), determine A m With A n+1 The area between is the deportation area; S302, in image D1, the bird is hidden by the support pole (2) A z When the bird is between the second camera (10), the bird in the image D2 is blocked by the support pole (2) A. m 、A m+1 When between m+1 With A z The area between them is used as the expulsion area; in image D1, the bird is hidden between the support pole (2)A n 、A n+1 When the bird in the image D2 is blocked between the support rod (2) A1 and the first camera (9), it is determined that A1 and A n between as an expulsion area; S4, the control unit (1) controls the trolley (6) to move back and forth several times within the expulsion area on the track (5), and simultaneously activates the sound and light alarm (7) to perform bird expulsion operations.

2. The IoT sprinkler irrigation and bird repellent integrated system for millet experimental fields according to claim 1 is characterized in that: The step S301 also includes the following steps of determining a highly suspected site in the expulsion area: After the first camera (9) and the second camera (10) are installed in place, the first camera (9) is used as the origin, the line between the first camera (9) and the second camera (10) is used as the x-axis, and the vertical line between the first camera (9) and the crossbeam (3) is used as the y-axis to establish a coordinate axis; the first camera (9) and the second camera (10) are respectively connected to the midpoint of a crossbeam (3) sandwiched between two adjacent support rods (2) to form a position reference line, and the angle between each position reference line and the x-axis is measured. After S301 determines the support rod (2) interval blocked by the bird images in image D1 and image D2, the intersection of the two sets of position reference lines is a highly suspected site. According to the preset position reference lines and the angle, the coordinates (x) of the intersection of the two sets of position reference lines, i.e., the highly suspected site, are obtained. 高 ,y 高 ).

3. The IoT sprinkler irrigation and bird repellent system for millet experimental fields according to claim 2 is characterized by: In the step S4, the control unit (1) controls the trolley (6) to move back and forth in the expulsion area on the track (5), and the trolley (6) moves to x 高 Stay for 3-5 seconds.

4. The IoT sprinkler irrigation and bird repellent system for millet experimental fields according to claim 1 is characterized by: A group of spaced metal sheets are provided on the crossbeam (3) on one side of the track (5), and a paddle in contact with the metal sheets is provided on the trolley (6).

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