A rapid detection system for moisture and impurity in machine-picked seed cotton during the acquisition process

Abstract

The present invention relates to a rapid detection system for moisture and impurity in machine-picked seed cotton during the acquisition process. Its structure includes a large impurity cleaning device for seed cotton, a seed cotton sample box, a driving and transmission device, a cotton pressing device, an image acquisition and processing device, a moisture regain detection device, and a control cabinet; the seed cotton sample box consists of a positioning plate and a high-transparency glass box; the weighing device consists of a weighing sensor, a support plate, and an electric push rod; the driving and transmission device consists of a roller, a conveyor belt motor, and a conveyor belt; the cotton pressing device consists of an electric push rod, a connecting rod, a connecting plate, and a high-transparency glass plate; the image acquisition and processing device consists of a camera, a light source, a detection sensor, an industrial control computer, a touch screen, etc.; the moisture regain detection device consists of a moisture regain detection sensor, a signal line, and a measurement controller; according to this rapid detection system for moisture and impurity in machine-picked seed cotton during the acquisition process, it can quickly realize the detection of the impurity content and moisture regain of seed cotton after removing large impurities, solve the technical problems such as the complicated detection process and slow speed of the impurity content and moisture regain of seed cotton during the acquisition process, and provide a real-time basis for the settlement of seed cotton transactions during the acquisition process.

Description

Technical Field

[0001] The present invention relates to a rapid detection system for moisture and impurities in machine-picked seed cotton during the acquisition process, belonging to the field of agricultural machinery and equipment. Background Art

[0002] Cotton is an important production material and has an important impact on the national economy and social development. In the production and sales of cotton, the selling price of cotton decreases as the impurity content increases, and the moisture regain rate is an important factor affecting the processing quality of seed cotton.

[0003] In the current cotton acquisition process in China, mainly after manual sampling, a cotton impurity analyzer is used to conduct impurity separation tests on seed cotton samples to detect the impurity content. The moisture regain rate of seed cotton is generally measured manually using a handheld moisture regain meter. Each link requires manual participation, resulting in high labor intensity, low efficiency, and complex processes, which is not conducive to the rapid detection and grading of seed cotton and seriously affects the production and sales efficiency during the cotton acquisition period. In summary, the present invention proposes a rapid detection system for moisture and impurities in machine-picked seed cotton during the acquisition process to achieve the rapid detection of the impurity content and moisture regain rate of seed cotton during the acquisition process, improve the degree of automation, reduce the manufacturing cost of the detection device, reduce the labor intensity, and improve the detection efficiency. Summary of the Invention

[0004] To solve the deficiencies in the prior art during the seed cotton acquisition process, the present invention provides a rapid detection system for moisture and impurities in machine-picked seed cotton during the acquisition process, and its technical solution is as follows: A rapid detection system for moisture and impurities in machine-picked seed cotton during the acquisition process includes a large impurity cleaning device (1) for seed cotton, a seed cotton sample box (4), a driving and transmission device (11), a cotton pressing device (7), an image acquisition and processing device, a moisture regain rate detection device, and a control cabinet (16); The large impurity cleaning device (1) for seed cotton is located at the leftmost side of the detection system, and its top is provided with a cotton inlet (2), and its upper right side is provided with a cotton outlet (3); The seed cotton sample box (4) is arranged directly below the cotton outlet (3) of the large impurity cleaning device for seed cotton, and the seed cotton sample box (4) is composed of a positioning plate (19) and a high-transparency glass box (18); The high-transparency glass box (18) is located directly above the positioning plate (19), and a weighing device is arranged below the positioning plate (19); The weighing device is composed of a weighing sensor (20), a support plate (22), and a first electric push rod (21). The weighing sensor (20) is located at the top of the weighing device, and a support plate (22) is arranged below it. The lower end of the support plate (22) is provided with a first electric push rod (21); The weighing device is arranged directly below the seed cotton sample box (4) and is located between two conveyor belts; The upper end of the left end of the driving and transmission device (11) is a positioning plate (19); An image acquisition and processing device and a cotton pressing device are arranged at its right end.

[0005] The driving and conveying device (11) consists of a driving roller (23), a driven roller (26), a first conveyor belt (24), a second conveyor belt (25), and a conveyor belt motor (28);

[0006] The conveyor belt motor (28) is located at the lower left end of the driving and conveying device (11). The end of its transmission shaft is connected to one end of the driving roller (23) through a belt. The first conveyor belt (24) and the second conveyor belt (25) are respectively sleeved on the driving roller (23) and the driven roller (26) in parallel;

[0007] The cotton pressing device consists of a second electric push rod (30), a connecting rod (31), a connecting plate (29), and a high-transparency glass plate (33); the image acquisition and processing device consists of a first camera (8), a first light source (9), a first detection sensor (17), a second camera (14), a second light source (12), a second detection sensor (10), an industrial control computer, and a touch screen; the moisture regain detection device consists of a moisture regain detection sensor (32), a signal line, and a measurement controller;

[0008] The driving and conveying device consists of a driving roller, a driven roller, a first conveyor belt, a second conveyor belt, a conveyor belt motor, a speed regulator, and a detection sensor. The two conveyor belts are parallel, and there is a certain gap between the two conveyor belts. The driving rollers and the driven rollers of the two conveyor belts are the same, so the speeds of the two conveyor belts are consistent. A detection sensor is installed on the driving and conveying device.

[0009] The cotton pressing device consists of a second electric push rod, a connecting rod, a connecting plate, and a high-transparency glass plate. The connecting plate is fixed on the electric push rod, and the cotton pressing glass plate is fixed to the connecting plate through the connecting rod and moves downward under the drive of the electric push rod to press the cotton;

[0010] The image acquisition and processing device consists of a first camera, a second camera, a camera bracket, a first light source, a second light source, a detection sensor, an industrial control computer, and a touch screen. The first camera, the first light source, the second camera, and the second light source are all fixed on the machine frame through brackets and bolt nuts, so that the positions of the first camera, the first light source, the second camera, and the second light source are respectively fixed above and below the driving and conveying device through the machine frame to collect double-sided image information of the unginned cotton sample. The detection sensor is fixed on the machine frame. During operation, the image acquisition device is covered by a light-shielding cover, and the light source emits light. After the surface of the unginned cotton is flattened by the cotton pressing device, the camera real-time collects the image information of the upper and lower surfaces of the unginned cotton. After being processed by the image processing software, the impurity content is calculated, and the moisture regain of the unginned cotton sample is measured through the moisture regain measurement circuit and is displayed on the touch screen in real time, and the information is stored;

[0011] The moisture regain detection device is composed of a moisture regain detection sensor, a signal line, and a measurement controller. The moisture regain detection sensor is fixed inside a high-transparency glass plate and is connected to the measurement controller through the signal line. The measurement controller is placed inside the control cabinet. The motor starts to rotate by detecting the signal from the first detection sensor, driving the sample box to the collection location. Then, the second detection sensor detects, and the controller controls the motor to stop rotating. After the cotton sample is compacted by the cotton pressing device, the moisture regain detection sensor measures the moisture regain of the seed cotton.

[0012] The detection system process mainly processes and analyzes the seed cotton impurity information in the sample image through image processing and machine learning technologies, and predicts the mass of small impurities. For detecting the total impurity content rate of the sample, it is necessary to calculate the total impurity content rate of the sample based on the mass of small impurities in the predicted image sample plus the mass of large impurities obtained through the large impurity cleaning device.

[0013] The beneficial effects of the present invention: It solves the deficiencies in the prior art such as the complicated water and impurity detection process and slow speed in the seed cotton acquisition link, quickly measures the impurity content rate and moisture regain of the seed cotton sample, provides favorable support for the rapid grading of seed cotton, eliminates the trouble of manual operation, improves work efficiency, uses a small-power motor for equipment transmission, saves energy consumption, and has great utilization value and promotion value. Brief Description of the Drawings

[0014] The present invention will be further described in detail below through specific embodiments in conjunction with the drawings.

[0015] Figure 1 It is the front view of the present invention;

[0016] Figure 2 It is the structural diagram of the weighing device of the present invention;

[0017] Figure 3 It is the structural diagram of the drive transmission device of the present invention;

[0018] Figure 4 It is the structural diagram of the cotton pressing device of the present invention;

[0019] Figure 5 It is the system detection flow chart of the present invention;

[0020] In the illustration: 1 - Seed cotton large impurity cleaning device, 2 - Cotton inlet, 3 - Cotton outlet, 4 - Seed cotton sample box, 5 - Touch screen, 6 - Frame, 7 - Cotton pressing device, 8 - First camera, 9 - First light source, 10 - Second detection sensor, 11 - Driving transmission device, 12 - Second light source, 13 - Camera support, 14 - Second camera, 15 - Button switch, 16 - Control cabinet, 17 - First detection sensor, 18 - High-transparency glass box, 19 - Positioning plate, 20 - Weighing sensor, 21 - First electric push rod, 22 - Support plate, 23 - Driving roller, 24 - First conveyor belt, 25 - Second conveyor belt, 26 - Driven roller, 27 - Speed governor, 28 - Conveyor belt motor, 29 - Connecting plate, 30 - Second electric push rod, 31 - Connecting rod, 32 - Moisture regain detection sensor, 33 - High-transparency glass plate Detailed implementation mode

[0021] The present invention will be further described in detail below in conjunction with the specific implementation mode and the attached drawings.

[0022] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 shown, a rapid detection system for the water and impurity of machine-picked seed cotton in the acquisition link includes a seed cotton large impurity cleaning device (1), a seed cotton sample box (4), a driving transmission device (11), a cotton pressing device (7), an image acquisition and processing device, a moisture regain detection device and a control cabinet (16); the seed cotton large impurity cleaning device (1) is located at the leftmost side of the detection system, and a cotton inlet (2) is arranged at the top thereof, and a cotton outlet (3) is arranged at the upper right side thereof; the seed cotton sample box (4) is arranged directly below the cotton outlet (3) of the seed cotton large impurity cleaning device, and the seed cotton sample box (4) is composed of a positioning plate (19) and a high-transparency glass box (18); the high-transparency glass box (18) is located directly above the positioning plate (19), and a weighing device is arranged below the positioning plate (19); the weighing device is composed of a weighing sensor (20), a support plate (22) and an electric push rod (21), the weighing sensor (20) is located at the top of the weighing device, a support plate (22) is arranged below it, and a first electric push rod (21) is arranged at the lower end of the support plate (22); the weighing device is arranged directly below the seed cotton sample box (4) and is located between two conveyor belts; the upper end of the left end of the driving transmission device (11) is a positioning plate (19); an image acquisition and processing device and a cotton pressing device are arranged at the right end thereof;

[0023] The driving transmission device (11) is composed of a driving roller (23), a driven roller (26), a first conveyor belt (24), a second conveyor belt (25) and a conveyor belt motor (28);

[0024] The conveyor belt motor (28) is located at the lower left end of the drive transmission device (11). The end of its transmission shaft is connected to one end of the driving roller (23) through a belt. The first conveyor belt (24) and the second conveyor belt (25) are respectively sleeved on the driving roller (23) and the driven roller (26) in parallel.

[0025] The cotton pressing device is composed of a second electric push rod (30), a connecting rod (31), a connecting plate (29), and a high-transparency glass plate (33); the image acquisition and processing device is composed of a first camera (8), a first light source (9), a first detection sensor (17), a second camera (14), a second light source (12), a second detection sensor (10), an industrial control computer, and a touch screen; the moisture regain detection device is composed of a moisture regain detection sensor (32), a signal line, and a measurement controller.

[0026] The unginned cotton sample box is composed of a positioning plate and a high-transparency glass box. A stepped round hole with a diameter slightly smaller than that of the high-transparency glass box is opened in the middle of the positioning plate to realize the acquisition of the image of the lower surface information of the unginned cotton sample. The positioning plate is fixed on the conveyor belt, and its initial position is below the cotton outlet. The high-transparency glass box is placed on the positioning plate. The weighing device jacks up the high-transparency glass box and waits for the unginned cotton to fall in for weighing. The weighing device is composed of a weighing sensor, a tray, and an electric push rod. The weighing sensor is installed on the tray, and the tray is fixed on the first electric push rod. The diameter of the tray is slightly smaller than the diameter of the upper circle of the positioning plate, which is convenient for the electric push rod to jack up the high-transparency glass box through the tray and wait for the unginned cotton after removing large impurities to fall in and then the weighing sensor detects it.

[0027] The drive transmission device is composed of a driving roller, a driven roller, a first conveyor belt, a second conveyor belt, a conveyor belt motor, a speed regulator, and a detection sensor. The two conveyor belts are parallel, and there is a certain gap between the two conveyor belts. The driving rollers and the driven rollers of the two conveyor belts are the same, so the speeds of the two conveyor belts are the same. A detection sensor is installed on the drive transmission device.

[0028] The cotton pressing device is composed of a second electric push rod, a connecting rod, a connecting plate, and a high-transparency glass plate. The connecting plate is fixed on the electric push rod, and the cotton pressing glass plate is fixed to the connecting plate through the connecting rod and moves downward under the drive of the electric push rod to press the cotton.

[0029] The image acquisition and processing device consists of a first camera, a second camera, a camera support, a first light source, a second light source, a detection sensor, an industrial computer, and a touch screen. The first camera and the first light source, as well as the second camera and the second light source, are fixed on the frame through brackets and bolt nuts, such that the positions of the first camera, the first light source, the second camera, and the second light source are respectively fixed above and below the drive transmission device through the frame to collect double-sided image information of the seed cotton sample. The detection sensor is fixed on the frame. During operation, the image acquisition device is covered by a light-shielding cover, and the light source emits light. After the surface of the seed cotton is flattened by the cotton pressing device, the cameras collect the image information of the upper and lower surfaces of the seed cotton in real time. After being processed by the image processing software, the impurity content rate is calculated, and the moisture regain rate of the seed cotton sample is measured by the moisture regain rate measurement circuit, which is displayed on the touch screen in real time and the information is stored.

[0030] The moisture regain rate detection device consists of a moisture regain rate detection sensor, a signal line, and a measurement controller. The moisture regain rate detection sensor is fixed inside a high-transparency glass plate and is connected to the measurement controller through the signal line. The measurement controller is placed inside the control cabinet. By detecting the signal from the first detection sensor, the motor starts to rotate, driving the sample box to the collection location. Then, the second detection sensor detects, and the controller controls the motor to stop rotating. After the cotton sample is compacted by the cotton pressing device, the moisture regain rate detection sensor detects the moisture regain rate of the seed cotton.

[0031] The detection system process mainly processes and analyzes the seed cotton impurity information in the sample image through image processing and machine learning techniques to predict the mass of small impurities. For detecting the total impurity content rate of the sample, it is necessary to calculate the total impurity content rate of the sample based on the mass of small impurities in the predicted image sample plus the mass of large impurities obtained through the large impurity cleaning device.

[0032] The sample unginned cotton is fed in from the cotton inlet of the unginned cotton large impurity cleaning device. After the large impurities are removed, the unginned cotton falls into the unginned cotton sample box from the cotton outlet. The weight of the unginned cotton after removing the large impurities is recorded by the weighing sensor. After completion, the switch button is pressed, and the first electric push rod descends. The sample glass box falls onto the positioning plate. When the first detection sensor detects a signal, the conveyor belt motor starts to rotate, that is, the conveyor belt starts. The driving transmission device sends the sample box containing the unginned cotton to the image acquisition location. The second detection sensor will detect. When the second detection sensor detects a signal, that is, the sample box has reached the designated position, the controller controls the conveyor belt motor to stop rotating. After a short delay, the cotton pressing device moves downward under the drive of the second electric push rod to compact the fluffy unginned cotton after removing the large impurities and ensure that the surface of the unginned cotton is on a plane. The first camera and the second camera collect the double-sided images of the unginned cotton in the sample box in real time. The entire image acquisition and processing device is covered by a light shield. After being processed by the image processing software, the impurity content rate is calculated. The moisture regain detection sensor measures the moisture regain of the unginned cotton and stores the information. The impurity content rate and moisture regain of the unginned cotton sample are displayed on the touch screen in real time. After the measurement is completed, the electric push rod retracts, that is, the cotton pressing device resets. After a period of delay, the conveyor belt motor starts to reverse. When the first detection sensor detects a signal, the conveyor belt motor stops rotating. The weighing device resets and lifts the high-transparency glass box to wait for the next sample detection.

[0033] The above uses specific examples to elaborate on the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. Any equivalent or simple changes made according to the structure, features, and principles described in the inventive concept of the present invention are included in the protection scope of the present invention.

Claims

1. A rapid detection system for moisture and impurities in machine-picked seed cotton during the acquisition process, characterized in that: It includes a large impurity cleaning device (1) for seed cotton, a seed cotton sample box (4), a driving and conveying device (11), a cotton pressing device (7), an image acquisition and processing device, a moisture regain detection device, and a control cabinet (16); the large impurity cleaning device (1) for seed cotton is located at the leftmost side of the detection system, and its top is provided with a cotton inlet (2), and its upper right side is provided with a cotton outlet (3); the seed cotton sample box (4) is arranged directly below the cotton outlet (3) of the large impurity cleaning device for seed cotton, and the seed cotton sample box (4) is composed of a positioning plate (19) and a high-transparency glass box (18); the high-transparency glass box (18) is located directly above the positioning plate (19), and a weighing device is arranged below the positioning plate (19). A stepped round hole with a diameter slightly smaller than that of the high-transparency glass box is opened in the middle of the positioning plate, and the high-transparency glass box can be placed on the stepped round hole; the weighing device is composed of a weighing sensor (20), a support plate (22), and a first electric push rod (21). The weighing sensor (20) is located at the top of the weighing device, and a support plate (22) is arranged below it. The lower end of the support plate (22) is provided with a first electric push rod (21); the weighing device is arranged directly below the seed cotton sample box (4) and is located between two conveyor belts; the upper end of the left end of the driving and conveying device (11) is a positioning plate (19), and the positioning plate is fixed on the conveyor belt; an image acquisition and processing device and a cotton pressing device are arranged at its right end; the conveyor belt motor (28) is located at the lower left side of the driving and conveying device (11), and the end of its transmission shaft is connected to one end of the driving roller (23) through a belt. The first conveyor belt (24) and the second conveyor belt (25) are respectively sleeved in parallel on the driving roller (23) and the driven roller (26); the driving and conveying device consists of a conveyor belt motor (28), a speed regulator (27), a driving roller (23), a driven roller (26), a first conveyor belt (24), a second conveyor belt (25), and a first detection sensor (17); the image acquisition and processing device consists of a first camera (8), a second camera (14), a camera bracket (13), a first light source (9), a second light source (12), a second detection sensor (10), an industrial control computer (16), and a touch screen (5); the first camera, the first light source, the second camera, and the second light source are all fixed on the frame through brackets and bolts and nuts, so that the positions of the first camera, the first light source, the second camera, and the second light source are respectively fixed above and below the driving and conveying device through the frame.

2. The rapid detection system for moisture and impurities in machine-picked seed cotton during the acquisition process according to claim 1, characterized in that: The moisture regain detection device consists of a moisture regain detection sensor (32), a signal line, and a measurement controller. The moisture regain detection sensor (32) is fixed inside a highly transparent glass plate (33) and is connected to the measurement controller through a signal line. The measurement controller is fixed inside the control cabinet (16). The motor starts to rotate by detecting the signal from the first detection sensor (17), driving the sample box to the collection location, and then the second detection sensor (10) detects. The controller controls the motor to stop rotating. After the cotton sample is compacted by the cotton pressing device (7), the moisture regain detection sensor (32) measures the moisture regain of the seed cotton.

3. According to the rapid detection system for water and impurities in machine-picked seed cotton during the acquisition process described in claim 2, it is characterized in that: The process of the detection system is to process and analyze the seed cotton impurity information in the sample image through image processing and machine learning techniques to predict the mass of small impurities. For the total impurity content rate of the detection sample, it is necessary to calculate the total impurity content rate of the sample based on the mass of small impurities in the predicted image sample plus the mass of large impurities obtained through the large impurity cleaning device.

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