Crop seed single-bin reseeding device and use method thereof

Abstract

The invention discloses a crop seed single-bin reseeding device and a use method thereof, an air suction type seed-metering device completes initial seed metering, qualified seeds fall into a reseeding bin, seeds in the reseeding bin fall into an indent type seed-metering device for seed metering, a pneumatic blowing nozzle assists in seed cleaning, and the seed-metering device is simple in structure and convenient to use. The seeds with good vigor are further stored in the indent type seed-metering device, a force sensing element and a posture micro-adjusting element are arranged in the indent type seed-metering device and used for sensing the posture of the seeds and performing micro-adjustment, after storage is completed, a disqualification or miss-seeding signal sent back by the main seed guide pipe is waited, and the first seed suction disc is driven to perform accurate reseeding; when the seeds pass through the industrial camera, the posture of the seeds is detected again, and unqualified seeds are subjected to posture adjustment through the posture adjustment module so as to ensure that the seeds fall into the soil in the same posture. The device integrates seed vigor detection and reseeding functions, improves the emergence rate and uniformity of seeding operation, is compact in structure, adapts to modification of an existing precision seeder, and is high in practicability.

Description

Technical Field

[0001] This invention relates to the field of agricultural seeding machinery technology, specifically to a single-compartment crop seed replanting device and its usage method. Background Technology

[0002] Precision seeding technology is one of the core technologies for saving seeds, improving quality, and increasing efficiency in modern agriculture. Existing precision seeders mostly employ mechanical or pneumatic seeding methods, but they generally suffer from two major technical drawbacks: First, they cannot detect seed viability in real time. When inactive, shriveled, or damaged seeds are present, it leads to low germination rates and uneven seedling distribution in the field. Second, traditional replanting methods are mostly manual or mechanical replanting based on missed seed detection, without incorporating seed viability testing. Replanted seeds may still have quality defects, and the accuracy of replanting is poor. Furthermore, existing replanting devices are mostly large-scale designs with complex structures and bulky volumes, making them difficult to adapt to small precision seeders and limiting their practicality. Therefore, developing a compact, single-compartment device capable of real-time seed viability detection and precise replanting is of great significance for improving the quality of precision seeding operations in planting. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a single-compartment replanting device for crop seeds, which can detect seed vigor in real time and complete precise replanting.

[0004] This invention is achieved through the following technical solution: a single-compartment replanting device for crop seeds, comprising a first attitude seed metering device electrically connected to the main pipe and adjusting the seed attitude, a seed delivery pipe connected to the outlet of the seed metering device and maintaining the seed attitude, and an attitude adjustment module connected to the seed delivery pipe; the attitude adjustment module includes a tee connected to the seed delivery pipe, a discharge pipe and the attitude adjustment module arranged in parallel and connected to the tee, and a first detection device for detecting the seed attitude in the seed delivery pipe; the first detection device is electrically connected to the valve of the tee and is used to control the opening and closing direction of the tee valve according to the detection result, so as to guide the seeds into the discharge pipe or the attitude adjustment module.

[0005] When this invention is in use, if the main seed tube sends a signal indicating that the seed is unqualified or has been missed, it will drive the first attitude seed metering device to perform precise reseeding. Seeds falling from the first attitude seed metering device enter the seed delivery pipe. The seeds will not change their attitude during transportation. When the seeds pass through the first detection device, those seeds with qualified attitudes will fall directly. Under the action of the three-way valve, seeds with unqualified attitudes enter the attitude adjustment module for attitude adjustment, while seeds with qualified attitudes fall directly into the soil, thereby achieving precise reseeding while maintaining the same seed attitude.

[0006] Preferably, the first posture seed metering device includes a hole-type seed metering device, and two of them are provided. The two first posture seed metering devices are located in the replenishment chamber and are arranged in parallel and symmetrically and are in an alternating standby working mode.

[0007] When this preferred solution is used, the parallel and alternating operation of the two seed metering devices greatly improves the replanting response speed and effectively reduces the missed replanting rate.

[0008] Preferably, the seed delivery tube includes a main tube and branch tubes respectively connected to two first posture seed metering devices. The bottom ends of the two branch tubes are connected to the top end of the main tube. The main tube is provided with a spiral track. The bottom end of the main tube is connected to an opening of the tee. The main tube and the discharge tube are coaxially arranged and both extend vertically downward.

[0009] In use, the spiral track ensures that the seeds maintain their intended posture as they are discharged from the first-position seed metering device during gravity descent, preventing loss of posture due to tumbling during transport.

[0010] Preferably, the replenishment chamber is also equipped with a seed cleaning nozzle facing the seed suction plate of the seed metering device. Based on the data from the rotation angle sensor, the seed cleaning nozzle is activated when it rotates through a certain angle, and blows away excess seeds from the seed suction hole through airflow.

[0011] When in use, this preferred solution utilizes a position sensor to trigger precise seed cleaning, ensuring that each seed suction hole only picks up one seed, thereby guaranteeing the absolute accuracy of single-seed seeding.

[0012] Preferably, the upper end of the replenishment chamber is provided with a small seed chamber for placing seeds, the outlet of the small seed chamber is connected to the inlet of the air suction seed metering device, and the outlet of the air suction seed metering device is connected to the inlet of the replenishment chamber.

[0013] When in use, this preferred solution supplies seeds to the refill bin quantitatively and stably through an independent air-suction seed metering device, realizing automated feeding of the refill bin and ensuring continuous refilling capability.

[0014] Preferably, a seed removal unit is provided between the air suction seed metering device and the replenishment bin. The seed removal unit includes a near-infrared spectrometer and a near-infrared reflector located inside the outlet of the air suction seed metering device and arranged opposite to each other, a seed removal tube connecting the outlet of the air suction seed metering device and the inlet of the replenishment bin, a seed removal nozzle located inside the seed removal tube, and an opening on the seed removal tube that is connected to the waste seed box and located in the blowing direction of the seed removal nozzle.

[0015] When in use, this preferred solution uses near-infrared spectroscopy to achieve non-contact online detection of seed vigor and automatically removes unqualified seeds to the waste seed bin, ensuring that only high-vigor seeds enter the replanting process.

[0016] Preferably, the replenishment compartment is also equipped with a seed quantity detection sensor to monitor the seed storage quantity in the two seed metering devices in real time.

[0017] When using this preferred solution, real-time inventory monitoring provides a basis for decision-making for the automatic feeding system, avoiding replanting failures due to seed shortages.

[0018] Preferably, the attitude adjustment module includes a housing, a second seed suction plate located inside the housing and connected to a three-way valve, the second seed suction plate having several second rows of seed holes for holding seeds, and the second rows of seed holes communicating with an air chamber through an airflow channel.

[0019] When this preferred solution is used, if the seed is determined to be in an unsuitable posture, it can be guided into the second seed suction plate and fixed by adsorption, providing a basis for subsequent posture calibration operations. The air chamber is used to maintain a stable working air pressure of the second seed suction plate, and the outer shell integrates a dustproof and sealing structure, which is suitable for field sowing operation environment.

[0020] A method for using a single-compartment crop seed replanting device includes the following steps: Seeds are stored in a small seed bin. They enter the pneumatic seed metering device for initial seed metering and then fall from the outlet of the seed metering device into the seed removal tube. A near-infrared detection device located at the outlet of the seed metering device works with a reflector to achieve non-contact detection of seed vigor, thereby screening whether the seeds are qualified. When the seeds are qualified, they enter the replenishment bin along the seed removal tube. When the seeds are unqualified, a pneumatic nozzle is driven to blow the unqualified seeds into the waste seed box. The seeds entering the replenishment bin fall into the first seed suction plate of the hole-type seed metering device for seed metering. The upper end of the first seed suction plate is equipped with a pneumatic nozzle for auxiliary seed cleaning. Seeds with good vigor are further stored in the first seed suction plate. A rotation angle sensor is installed on the drive shaft of the seed metering device to better determine the position of the first seed suction plate, so as to more accurately complete the seed cleaning and posture adjustment. The seed metering device has a force sensing element and a posture micro-adjustment element inside, which are used to sense the posture of the seeds and make fine adjustments. After storage, the system waits for signals from the main seed tube indicating unqualified or missed seeds, and then drives the first seed suction disc for precise reseeding. The two seed suction discs with two eye-shaped rollers work alternately, which greatly reduces the rate of missed reseeding. Seeds falling from the first seed suction disc enter the seed delivery pipe, which uses a spiral track structure to prevent the seeds from changing their posture during transport. When the seeds pass the first detection device, their posture is checked again, and those that are qualified fall directly. Under the action of the three-way valve, seeds with unqualified postures enter the second seed suction disc. Based on the position information fed back by the rotation angle sensor in the eye-shaped seed metering device, an angle adjustment command is sent to the angle drive module to drive the second seed suction disc to rotate by the corresponding angle, calibrating the seed posture to the preset qualified orientation; thus ensuring that the seeds fall into the soil with the same posture.

[0021] Preferably, the control console can analyze the detection signal transmitted by the near-infrared spectrometer and compare it with a preset qualified seed spectral threshold. When the detection signal is lower than the threshold, the control console activates the seed-removing nozzle to remove unqualified seeds; when the detection signal is higher than the threshold, seeds are allowed to enter the replenishment bin; when the seed quantity of any seed metering device in the replenishment bin is lower than a preset threshold, the air-suction seed metering device increases the seeding frequency; when the seed quantity reaches the full bin threshold, the air-suction seed metering device reduces the seeding frequency to the lowest level to prevent seed overflow.

[0022] When this preferred solution is used, it enables the system to operate adaptively and optimize, removes inferior seeds in real time based on spectral data, and dynamically adjusts the feeding frequency according to the inventory, thereby improving the overall energy efficiency and reliability of the system while ensuring replanting capacity.

[0023] The beneficial effects of this invention are as follows: When the main seed tube sends back a signal indicating that the seeds are unqualified or have been missed, it will drive the first attitude seed metering device to perform precise reseeding. Seeds falling from the first attitude seed metering device enter the seed delivery pipe. The seeds will not change their attitude during transportation. When the seeds pass through the first detection device, those seeds with qualified attitudes will fall directly. Under the action of the three-way valve, seeds with unqualified attitudes enter the attitude adjustment module for attitude adjustment, while seeds with qualified attitudes fall directly into the soil, thereby achieving precise reseeding while maintaining the same attitude of the seeds. The spiral track ensures that the seeds maintain their predetermined attitude when they are discharged from the first attitude seed metering device during gravity descent, preventing attitude loss of control due to tumbling during transportation. Near-infrared spectroscopy enables non-contact online detection of seed vigor and automatically removes unqualified seeds to the waste seed box, ensuring that only high-vitality seeds enter the reseeding process. Attached Figure Description

[0024] Figure 1 This is a structural diagram of a high-speed electric-driven single-seed precision seeder. Figure 2 This is a structural diagram of the present invention; Figure 3 This is an exploded view of a pneumatic seed metering device. Figure 4 Schematic diagram of air-suction seed metering device and seed detection and rejection module; Figure 5 A schematic diagram of an explosion of a seed metering device with a hole-shaped opening; Figure 6 This is a schematic diagram of the attitude adjustment module; Figure 7 A flowchart for a single-compartment reseeding device for crop seeds; Figure 8 A block diagram of the electrical control system for a single-compartment reseeding device for crop seeds; As shown in the figure: 1. Near-infrared detector accessories; 2. Seed metering device angle adjustment mechanism; 3. Re-seeding device; 4. Soil covering device; 5. Depth limiting wheel; 6. Main seed tube; 7. Pressing wheel; 8. Soil clearing device; 9. Waste seed box; 10. Main seed metering device; 11. Large seed bin; 301. Air suction seed metering device; 302. First detection device; 303. Re-seeding bin; 304. Hole-type seed metering device; 305. Divider pipe; 306. Industrial camera; 307. Seed delivery pipe; 308. Attitude adjustment module; 309. Electromagnetic diverter valve; 310. Electromagnetic ball valve; 311. Rotation angle sensor; 312. Visual sensor data processing module; 313. Small seed bin; 314. Angle sensor data processing module; 3021. Near-infrared spectrometer; 3022. Seed removal nozzle; 30 23. Seed removal tube; 3024. Drawer of waste seed box; 3025. Waste seed box; 3026. Near-infrared reflector; 3011. Outer cover of air suction seed metering device; 3012. Seed removal module of air suction seed metering device; 3013. Seed metering device base of air suction seed metering device; 3014. Suction cup frame of air suction seed metering device; 3015. Irregular suction cup of air suction seed metering device; 3016. Seed metering plate of air suction seed metering device; 3031. Replenishment chamber; 3032. Seed cleaning nozzle; 3041. Outer shell of hole-type seed metering device; 3042. First suction plate; 3043. Air chamber of hole-type seed metering device; 3044. Drive shaft of hole-type seed metering device; 3081. Air chamber of posture adjustment module; 3082. Second suction plate; 3083. Outer shell of posture adjustment module. Detailed Implementation

[0025] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0026] See attached document Figure 1-8 This invention discloses a single-compartment reseeding device for crop seeds and its method of use, applicable to the following: Figure 1 The precision seeder shown includes a near-infrared detector accessory 1, a seed metering device angle adjustment device 2, a reseeding device 3, a soil covering device 4, a depth limiting wheel 5, a main seed tube 6, a press wheel 7, a stubble clearing device 8, a waste seed box 9, a main seed metering device 10, and a large seed bin 11.

[0027] The replanting device 3 includes a seed storage module, a seed dispensing module, a seed detection and rejection module, a seed conveying module, a seed cleaning module, a posture adjustment module 308, and an electrical control module. The specific structure of each module is as follows: The seed storage module includes a small seed bin 313, a replenishment bin 303, and a waste seed bin 3025. The small seed bin 313 is responsible for storing seeds that have not undergone viability testing, the replenishment bin is responsible for storing seeds that have passed viability testing, and the waste seed bin 3025 is mainly responsible for storing seeds that have failed viability testing.

[0028] The integrated design combines the small seed bin 313, replenishment bin, and waste seed bin 3025 into a single housing, resulting in a compact structure and saving installation space.

[0029] The seed metering module includes an air-suction seed meterer 301 and a hole-type seed meterer 304. The hole-type seed meterer 304 is the first posture seed meterer. The air-suction seed meterer 301 is located below and connected to the small seed bin 313. It completes the pre-detection seed metering and is responsible for the initial single-seed metering to ensure that the seeds enter the detection area in an orderly manner. The metering frequency can be dynamically adjusted according to the amount of seeds stored in the replenishment bin.

[0030] The two seed metering devices 304 are located inside the replenishment chamber and are placed on the left and right sides of the replenishment chamber respectively. They are used to accurately replenish viable seeds. The longitudinal baffle inside the replenishment chamber divides it into two independent areas, each corresponding to one of the two seed metering devices 304, so as to realize the partitioned storage and independent replenishment of qualified seeds.

[0031] The eye-type seed metering device 304 is existing technology. Two eye-type seed metering devices 304 are symmetrically arranged on both sides of the replanting compartment. The seed suction plate surface has an adjustable-diameter suction hole, suitable for different crop seeds such as corn, wheat, and soybeans. The seed suction plate integrates a force sensor and a posture micro-adjustment device to sense the seed shape, suction force, and placement status in real time. The posture micro-adjustment device adjusts the position and posture of the seed in the suction hole to ensure that the initial seed posture is compliant. A rotation angle sensor 311 is installed at the drive shaft to accurately measure the rotation angle of the seed suction plate, providing data support for replanting timing, position control, and posture adjustment. The rotation angle sensor 311 is electrically connected to the angle sensor data processing module 314. The two seed metering devices adopt an alternating standby working mode, which greatly improves the replanting response speed and reduces the missed replanting rate.

[0032] The detection module includes a near-infrared spectrometer 3021 and a near-infrared reflector 3026. The near-infrared spectrometer 3021 and the near-infrared reflector 3026 are positioned opposite each other at the outlet of the air-suction seed metering device 301, forming a closed optical path. Employing near-infrared non-contact detection technology, it rapidly acquires seed spectral data, accurately identifies inactive, shriveled, and damaged seeds, and features a short detection response time, without affecting high-speed seed metering efficiency.

[0033] The seed removal module includes a seed removal tube 3023, a seed removal nozzle 3022, and a waste seed box 3025. The seed removal tube 3023 is connected to the outlet of the air suction seed metering device 301 and the inlet of the replenishment hopper. The seed removal nozzle 3022 is located inside the seed removal tube 3023. The seed removal tube 3023 has an opening that is connected to the waste seed box 3025 and is located in the blowing direction of the seed removal nozzle 3022. The seed removal nozzle 3022 is used to blow unqualified seeds into the waste seed box 3025 in a ° direction, which can realize the removal of bad seeds after the viability test, realize the automatic separation and recycling of unqualified seeds, and reduce seed waste. The waste seed box 3025 has a drawer that slides in, and the seeds in the waste seed box 3025 can be quickly taken out by pulling out the drawer.

[0034] The seed delivery module includes a seed delivery pipe 307 connecting the replenishment chamber and a tee. The seed delivery pipe 307 includes a main pipe and branch pipes 305 respectively connected to two first-posture seed metering devices. The bottom ends of the two branch pipes 305 are connected to the top end of the main pipe. A tee is also provided between the two branch pipes 305 and the main pipe, and an electromagnetic ball valve 310 is installed in this tee. A spiral track is provided inside the main pipe, and the bottom end of the main pipe is connected to an opening of the tee. The main pipe and the discharge pipe are coaxially arranged and both extend vertically downward.

[0035] The seed cleaning module includes a seed cleaning nozzle 3032, which is placed in the replenishment chamber and directly opposite the seed suction plate of the hole-type seed metering device 304. Based on the data from the rotation angle sensor 311, the seed cleaning nozzle 3032 is activated when it rotates through a certain angle, blowing away excess seeds from the seed suction holes with airflow to ensure that each seed suction hole only picks up one seed, thus ensuring single-seed metering accuracy. Directly opposite the hole-type seed metering device 304, it can ensure that the hole-type seed metering device 304 only picks up one seed at a time.

[0036] The attitude adjustment module 308 includes an industrial camera 306, an air chamber for the attitude adjustment module 308, an attitude adjustment seed suction plate, and a housing for the attitude adjustment module 308. The industrial camera 306 is also the first detection device 302. The industrial camera 306 is electrically connected to the vision sensing data processing module 312, which is used to process the photos taken by the industrial camera 306 and transmit them to the microcontroller.

[0037] As seeds travel through the spiral channel within the seed delivery tube 307 and pass the industrial camera 306, their orientation is detected. Seeds with acceptable orientation fall directly, while those with unacceptable orientation fall into the second seed suction plate 3082. Based on the visual detection data, the control console controls the second seed suction plate 3082 to rotate at a fixed angle, adjusting the seed orientation to ensure that all seeds fall into the soil with the same orientation. The seed delivery tube 307 and the orientation adjustment module 308 are connected via a T-junction, which contains a valve, specifically an electromagnetic diverter valve 309.

[0038] The electronic control module, with a microcontroller at its core, collaborates with other modules to form a closed-loop control system, achieving fully automated control of the entire process, including seed metering, detection, sorting, seed storage, status perception, attitude adjustment, replanting, and calibration. The power supply module provides a stable DC power supply, and the reset module ensures normal system initialization. The signal receiving module is responsible for receiving the replanting trigger signal from the main seed tube 6, the seed quantity detection signal from the replenishment warehouse, the force sensor signal, the rotation angle sensor 311 signal, and the attitude detection signal from the industrial camera 306. The drive module, according to the microcontroller's instructions, drives the air suction seed metering device 301, the seed-removing nozzle 3022, the eyelet seed metering device 304, the second attitude adjuster, etc., to perform corresponding actions, ensuring precise coordination among all links.

[0039] The electronic control module is a closed-loop control system built around a microcontroller. It is electrically connected to the seed metering module, the detection and rejection module, the seed cleaning module, and the attitude calibration module. The electronic control module includes a microcontroller, a near-infrared detection module, a sensor group (including a seed replenishment sensor, a force sensor, and a rotation angle sensor 311), a drive module (including a pneumatic nozzle drive circuit, a conical seed metering device 304 drive circuit, and an attitude adjustment drive circuit), a power supply module, a reset module, and a signal receiving / transmission module.

[0040] The power module provides a stable DC power supply for the entire electronic control system, and the reset module ensures that the system initializes normally during startup. The signal receiving module is responsible for receiving the replanting trigger signal and the seed quantity detection signal from the main seed tube 6; The drive module drives the pneumatic nozzle and the conical seed metering device 304 to perform corresponding actions according to the microcontroller instructions.

[0041] A method for using a single-compartment crop seed replanting device includes the following steps: Seeds are stored in a small seed bin 313. The seeds enter the pneumatic seed metering device 301 for initial seed metering, and then fall from the outlet of the seed metering device into the seed removal tube 3023. The near-infrared detection device located at the outlet of the seed metering device works with the reflector to achieve non-contact detection of seed vigor, thereby screening whether the seeds are qualified. When the seeds are qualified, they enter the replenishment bin along the seed removal tube 3023. When the seeds are unqualified, the pneumatic nozzle is driven to blow the unqualified seeds into the waste seed box 3025. The seeds entering the replenishment bin fall into the first seed suction plate 3042 of the eye-type seed metering device 304 for seed metering. The upper end of the first seed suction plate 3042 is equipped with a pneumatic nozzle for auxiliary seed cleaning. Seeds with good vigor will be further stored in the first seed suction plate 3042. The drive shaft 3044 of the eye-type seed metering device is equipped with a rotation angle sensor 311 to better determine the position of the first seed suction plate 3042, so as to more accurately complete the seed cleaning and posture adjustment. The seed metering device 304 has a force sensing element and a posture micro-adjustment element inside, which are used to sense the posture of the seeds and make micro-adjustments. After storage, the system waits for signals from the main seed tube 6 indicating unqualified or missed seeds, and then drives the first seed suction plate 3042 for precise reseeding. The two seed suction plates 3042 work alternately, which greatly reduces the rate of missed reseeding. Seeds falling from the first seed suction plate 3042 enter the seed delivery tube 307. The seed delivery tube 307 has a spiral track structure inside so that the seeds do not change their posture during transportation. When the seeds pass the first detection device 302, the seed posture is checked again. Seeds with qualified posture will fall directly. Under the action of the three-way valve, seeds with unqualified posture enter the second seed suction plate 3082. Based on the position information fed back by the rotation angle sensor 311 in the seed metering device 304, an angle adjustment command is sent to the angle drive module to drive the second seed suction plate 3082 to rotate the corresponding angle and calibrate the seed posture to the preset qualified orientation, thereby ensuring that the seeds fall into the soil with the same posture.

[0042] The complete electrical control process of this solution is as follows: System initialization: After starting the main machine of the seeder, the electronic control system is powered on, the power module and reset module work, the microcontroller completes self-test, the near-infrared detection module and sensor group are initialized, and the system enters standby mode, waiting for the seeding start signal.

[0043] Seeding and detection are linked: After receiving the seed metering start signal from the main unit, the microcontroller outputs a control signal to drive the pneumatic seed meterer 301 to start, and simultaneously activates the detection module. The detection module continuously collects seed spectral data, converts the analog signal into a digital signal, and transmits it to the microcontroller.

[0044] Signal Analysis and Sorting Control: The microcontroller analyzes and processes the received detection signal and compares it with the preset qualified seed spectral threshold. If the signal is below the threshold (determined to be an unqualified seed), the microcontroller outputs a drive signal to the solenoid reversing valve of the seed-removing nozzle 3022 to control the nozzle to start and complete the removal of unqualified seeds. If the signal is higher than the threshold (determined to be a qualified seed), the microcontroller will not trigger the seed-removing nozzle 3022, allowing the seed to enter the replenishment bin.

[0045] Replenishment Status Monitoring and Supply Control: Seed quantity detection sensors inside the replenishment area monitor the seed storage level in both sides in real time and transmit the data to the microcontroller. If the seed quantity does not reach the preset full warehouse threshold, the microcontroller keeps the air suction seed metering device 301 working continuously to continuously deliver qualified seeds to the replenishment warehouse. If the seed quantity reaches the full capacity threshold, the microcontroller outputs a signal indicating that the replenishment is complete, and at the same time controls the air suction seed metering device 301 to reduce the seeding frequency to prevent seed overflow.

[0046] The rotation angle sensor 311 detects the rotation angle in real time and transmits the data to the micro-adjustment element. At the same time, the micro-adjustment element uses the data transmitted back from the force sensing element. The two are combined to adjust the posture and avoid jamming.

[0047] Reseeding Triggering and Execution: When the main seed tube 6 detects missed sowing or unqualified sowing, it sends a reseeding trigger signal to the microcontroller through the signal transmission module, specifying the location of the missed sowing and the reseeding requirement. After receiving the signal, the microcontroller selects the eye-type seed metering device 304, which is in standby mode, based on the working status of the seed metering devices on both sides of the replenishment bin. The drive signal is output to the drive circuit of the drive shaft 3044 of the seed metering device, which controls the drive shaft of the seed metering device 304 to rotate at a specific angle so that the seed holes with qualified seeds are aligned with the discharge port. The seeds are replanted through the seed delivery tube 307. When passing through the industrial camera 306, the posture is detected and the signal is transmitted back. The unqualified posture is further adjusted through the posture adjustment module 308. After replanting is completed, the seed metering device sends a completion signal to the microcontroller, and the system resets to standby mode, waiting for the next replanting signal.

[0048] Of course, the above description is not limited to the examples above. Technical features not described in this invention can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solutions of this invention and are not intended to limit this invention. This invention has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this invention do not depart from the spirit of this invention and should also fall within the scope of protection of the claims of this invention.

Claims

1. A single bin seed replenishment device for crop seeds, characterized by: The first seed posture seed metering device is connected with the main pipe and adjusts the seed posture, the seed feeding pipe (307) is communicated with the seed metering device outlet and keeps the seed posture, and the posture adjusting module (308) is connected with the seed feeding pipe (307).

2. The single bin seed singulator for crop seeds of claim 1, wherein: The first seed posture seed metering device includes the seed eye seed metering device (304), and two first seed posture seed metering devices are located in the seed supplement bin (303), are arranged in parallel and symmetrically and are in an alternate standby mode, so that the seed supplement response speed is greatly improved, and the seed supplement missing rate is reduced.

3. The single bin seed singulator for crop seeds of claim 2, wherein: The seed feeding pipe (307) includes a main pipe and two branch pipes (305) connected with the two first seed posture seed metering devices respectively, the bottom ends of the two branch pipes (305) are connected with the top end of the main pipe, the main pipe is provided with a spiral track, the bottom end of the main pipe is connected with one opening of the tee joint, and the main pipe and the seed feeding pipe are coaxial and vertically downward.

4. The single bin seed singulator for crop seeds of claim 3, wherein: The seed supplement bin is also provided with the seed cleaning nozzle (3032) opposite to the seed eye seed metering device (304) seed suction disc, the seed cleaning nozzle (3032) is started when a certain angle is turned through the data of the rotation angle sensor (311), the excess seeds in the seed suction hole are blown away through the airflow, it is ensured that only one seed is adsorbed in each seed suction hole, and the single-seed seed metering precision is ensured.

5. The single bin seed singulator of claim 4, wherein: The upper end of the seed supplement bin is provided with a small seed bin for placing seeds, the small seed bin discharge port is communicated with the air suction type seed metering device (301) feeding port, and the air suction type seed metering device (301) discharge port is communicated with the seed supplement bin (303) feeding port.

6. The single bin seed singulator of claim 4, wherein: The seed supplement bin is also provided with the seed cleaning nozzle (3032) opposite to the seed eye seed metering device (304) seed suction disc, the seed cleaning nozzle (3032) is started when a certain angle is turned through the data of the rotation angle sensor (311), the excess seeds in the seed suction hole are blown away through the airflow, it is ensured that only one seed is adsorbed in each seed suction hole, and the single-seed seed metering precision is ensured.

7. The single bin seed singulator for crop seeds of claim 6, wherein: The seed supplement bin is also provided with a seed amount detection sensor for monitoring the seed storage amount in the two seed eye seed metering devices (304) in real time.

8. The single bin seed singulator for crop seeds of claim 7, wherein: The posture adjusting module (308) includes a shell, a second seed suction disc (3082) connected with the tee joint in the shell, a plurality of second seed metering holes for placing seeds are formed in the second seed suction disc (3082), and the second seed metering holes are communicated with the air chamber through the airflow channel.

9. The method of using a single bin seed singulator for crop seeds of claim 8, wherein, The method comprises the following steps: The first seed posture seed metering device is connected with the main pipe and adjusts the seed posture, the seed feeding pipe (307) is communicated with the seed metering device outlet and keeps the seed posture, and the posture adjusting module (308) is connected with the seed feeding pipe (307). The seeds are stored in the small seed bin, and the seeds enter the air suction seed metering device (301) to complete the initial seed metering, and then fall into the seed rejection tube (3023) from the discharge port of the seed metering device. The near-infrared detection device at the discharge port of the seed metering device cooperates with the reflector to realize non-contact detection of the seed vigor, thereby realizing screening of whether the seeds are qualified. When the seeds are qualified, the seeds enter the seed supplement bin along the seed rejection tube (3023). When the seeds are unqualified, the driving pneumatic nozzle blows the unqualified seeds into the waste seed box (3025). The seeds entering the seed supplement bin fall into the first suction disc (3042) of the furrow seed metering device (304) to be metered. The upper end of the first suction disc (3042) is provided with a pneumatic nozzle for auxiliary seed cleaning. The seeds with good vigor are further stored in the first suction disc (3042). The transmission shaft (3044) of the furrow seed metering device is provided with a rotation angle sensor (311) to better determine the position of the first suction disc (3042) and more accurately complete seed cleaning and posture adjustment. The furrow seed metering device (304) is provided with a force sensing element and a posture micro-adjusting element for sensing the seed posture and micro-adjusting. After storage, the unqualified or missed planting signals returned by the main seed tube (6) are waited for, and the first suction disc (3042) is driven for accurate reseeding. The two furrow wheels and the first suction disc (3042) work alternately, which can greatly reduce the reseeding rate. The seeds falling from the first suction disc (3042) enter the seed delivery tube (307). The seed delivery tube (307) adopts a spiral track structure to prevent the seeds from changing posture during transportation. When the seeds pass through the first detection device (302), the seeds with qualified posture will directly fall down. Under the action of the three-way valve, the seeds with unqualified posture enter the second suction disc (3082). Based on the position information fed back by the rotation angle sensor (311) in the furrow seed metering device (304), an angle adjustment instruction is issued to the angle driving module, and the second suction disc (3082) is driven to rotate by a corresponding angle to calibrate the seed posture to a preset compliant orientation, thereby ensuring that the seeds fall into the soil in the same posture.

10. The method of using a single bin seed singulator for crop seeds of claim 9, wherein: The console can analyze the detection signals transmitted by the near-infrared spectrometer (3021) and compare them with the preset qualified seed spectrum threshold. When the detection signal is lower than the threshold, the seed rejection nozzle (3022) is started to reject unqualified seeds. When the detection signal is higher than the threshold, the seeds are allowed to enter the seed supplement bin. When the seed amount of any furrow seed metering device (304) in the seed supplement bin is lower than the preset threshold, the air suction seed metering device (301) increases the seed metering frequency. When the seed amount reaches the full bin threshold, the air suction seed metering device (301) reduces the seed metering frequency to the lowest level to prevent seed overflow.

Images