Monitoring method for potato tuber seeder

Abstract

The invention discloses a monitoring method for a potato tuber seeding machine. The seeding machine comprises a tuber storage box, a chain, seed spoons and a seed discharging pipeline, and further comprises a seed spoon detection sensor and a seed taking monitoring sensor; a plurality of seed taking groups are arranged on the chain, and each seed taking group comprises two seed spoons which have the same height and are respectively arranged on two sides of the chain; the seeding machine further comprises a switching mechanism capable of changing the state of the seed spoon; the monitoring method comprises the following steps: obtaining the seed holding condition of each seed spoon in a seed spoon group through a seed taking monitoring sensor, and obtaining the seed holding condition of the seed spoon group according to the seed holding condition; counting the comprehensive seed holding condition of N continuous seed spoon groups; managing the states of the seed spoons in each group according to the comprehensive seed holding condition; by arranging the seed spoons on the chain in groups and performing state management on the seed spoons as required, seed taking and backup can be realized, and backup tubers can be transferred to the seed spoon group lacking seeds or redundant tubers can be discarded as required, so that the problem of easy seed leakage of the seed spoon type seeder can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of potato sowing, in particular to a monitoring method for a potato tuber sowing machine. Background Art

[0002] As an important crop widely grown around the world, potato is not only one of the main sources of food in many countries, but also essential to human health because it is rich in nutrients such as carbohydrates, vitamin C and minerals. It occupies an irreplaceable position in the agricultural economy. At the same time, it has strong adaptability and can grow under a variety of climatic conditions, which helps to ensure food safety and promote farmers' income. The automatic seeder of potato tubers is a product of modern agricultural mechanization, which aims to improve the efficiency and quality of sowing. As a traditional machine, the seed spoon type seeder has achieved mechanized operation, but it has some shortcomings: mainly reflected in the unstable seeding of the seed spoon and the easy phenomenon of missing seeds.

[0003] In the prior art, patent CN 107703831 A discloses a missed seeding detection-replanting system, a potato missed seeding detection-replanting integrated control system and a method thereof, which accurately detects the missed seeding position through photoelectric, piezoelectric and Hall sensor signals, and uses counting to accurately judge the replanting time; when replanting, an acceleration control method is used to bypass the missing seeding spoon and replant with the next seeding spoon. In this patent solution, when the acceleration control method is used to bypass the missing seeding spoon and replant with the next seeding spoon, there is a delay in motor acceleration, which will affect the planting spacing, and in this method, the chain running speed needs to be adjusted according to the machine running speed to maintain the plant spacing, which increases the control difficulty. Summary of the invention

[0004] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a monitoring method for a potato tuber seeder that can monitor missed seeds and timely replant without affecting the seeding spacing.

[0005] Technical solution: To achieve the above-mentioned purpose, the potato tuber planter monitoring method of the present invention comprises a planter including a tuber storage box, a chain, a seed spoon and a seed discharge pipe, wherein the seed spoon is equidistantly installed on the chain; the planter also comprises a seed spoon detection sensor and a seed taking monitoring sensor, wherein the seed taking monitoring sensor is used to detect whether there are potato tubers in the seed spoon; when the chain is running, the seed spoon can circulate in and out of the tuber storage box, and the seed spoon can take out the potato tubers in the tuber storage box to achieve seed separation; as the chain runs, the seed spoon carries the potato tubers into the seed discharge pipe, and the seed discharge pipe puts the potato tubers into the furrows opened in the land to achieve seeding; the driving sprocket corresponding to the chain is driven by the ground wheel, and the rotation speed of the ground wheel changes dynamically with the vehicle speed;

[0006] All the seed spoons installed on the chain form a plurality of seed taking groups, each of which includes two seed spoons of the same height and disposed on both sides of the chain; the seed spoons can switch between a seed holding state and a release state relative to the chain;

[0007] The planter also includes a switching mechanism capable of changing the state of the seed spoon; the seed taking monitoring sensor is located below the switching mechanism;

[0008] The monitoring method includes the following steps S101-S103:

[0009] Step S101, obtaining the seed holding status of each seed spoon in the seed spoon group through the seed taking monitoring sensor, and obtaining the seed holding status of the seed spoon group accordingly, wherein the seed holding status of the seed spoon group includes: double seed holding, single seed holding and double empty spoons; the double seed holding status means that both seed spoons in the seed spoon group have potato tubers, the single seed holding status means that only one seed spoon in the seed spoon group has potato tubers, and the double empty spoon status means that neither seed spoon in the seed spoon group has potato tubers;

[0010] Step S102, counting the comprehensive seed holding status of N consecutive seed spoon groups, where N is a preset fixed value; in this solution, N=3 is used for illustration;

[0011] Step S103, managing the status of the seed spoons of each group according to the comprehensive seed holding situation; specifically: when a lower seed spoon group is short of seeds, the higher seed spoon group transfers excess tubers to the seed spoon group that is short of seeds; when no seed spoon group is short of seeds, the higher seed spoon group releases and discards excess tubers and returns them to the tuber storage box.

[0012] In the above method, by arranging seed spoons in groups on the chain and managing the status of the seed spoons as needed, seed backup can be achieved, and the backup tubers can be transferred to the seed spoon group that is short of seeds or the excess tubers can be discarded as needed. In this way, the problem of seed leakage in seed spoon type seeders can be solved.

[0013] In the prior art, a motor is used to accelerate the tubers of the next seed scoop into the seed discharge pipe to make up for the missing seeds. However, there is a delay in the acceleration of the motor in the prior art, which will affect the planting spacing. In the prior art, the running speed of the chain needs to be adjusted according to the running speed of the machine to maintain the spacing. In comparison, in the present invention, the chain can be driven by the ground wheel to maintain the consistent spacing. The monitoring and adjustment process will not affect the spacing, and no additional computing power is required to maintain the spacing.

[0014] Furthermore, the management of the status of the seed spoons of each group according to the seed distribution status in the above step S103 includes the following steps S201-S202:

[0015] Step S201, when the seed spoon detection sensor generates a trigger signal each time, it is determined whether the current N seed spoon groups are all single-holding seed spoons or double-holding seed spoons, and a first determination result is obtained;

[0016] Step S202, when the first judgment result is yes: when the seed spoon group at the highest position in the N groups is in a double-holding seeding situation, the switching mechanism is used to discard the excess tubers;

[0017] Step S203, when the first judgment result is no: for the seed spoon group in the double empty spoon situation, determine whether there are extra tubers in the seed spoon group located higher than it, if yes, supplement the seed spoon group in the double empty spoon by transferring tubers so that it has potato tubers, otherwise, issue an alarm.

[0018] In addition, after executing the above steps S201-S203, the seed holding status of the highest seed spoon group is eliminated, and the seed holding status of a new group of seed spoon groups is added after the next seed spoon detection sensor generates a trigger signal. In this way, continue to run the above steps S201-S203 for continuous operation.

[0019] Furthermore, the seed spoon comprises a seed spoon body and a seat body fixed on the chain link of the chain, and also comprises a support rod; the seed spoon body is rotatably mounted relative to the seat body, the support rod can slide relative to the seat body, and a spring is provided between the support rod and the seat body; a guide rod is fixed on the support rod;

[0020] The switching mechanism includes a transverse pushing block capable of acting on the guide rod and a transverse pushing unit for translating the transverse pushing block.

[0021] In the seed holding state, the supporting rod presses against the bottom of the seed spoon body, so that the seed spoon body is placed horizontally; the horizontal pushing unit acts on the guide rod through the horizontal pushing block, so that the supporting rod leaves the bottom of the seed spoon body, and the seed spoon body rotates downward to release the tuber.

[0022] Furthermore, the seed spoon detection sensor is a proximity sensor.

[0023] Furthermore, the seed collection monitoring sensor is a camera, which determines whether there are potato tubers in the seed spoon by image recognition.

[0024] Furthermore, two sets of the switching mechanisms are provided on each side of the chain, which are used to discard the tubers on the seed spoon and transfer the tubers on the seed spoon downwards respectively.

[0025] In order to prevent the seed spoon from affecting the seed spoon below when discarding the tuber, the tuber storage box is installed with an inclined guide plate, and also includes a limit plate and a tension spring acting on the guide plate; the limit plate limits the lowest position of the guide plate, and the guide plate can rotate upward from the position of the limit plate, and the tension spring makes the guide plate have a downward rotation tendency. During operation, the seed spoon is pushed to rotate upward to pass through the edge of the guide plate to reach the top of the guide plate during the rising process, and then when the seed spoon needs to discard the tuber, the switching mechanism switches the seed spoon to the release state, and the tuber released by the seed spoon falls to the guide plate and falls back to the tuber storage box along the guide plate, and will not hit the seed spoon below.

[0026] In order to prevent the tubers from falling and causing transfer failure when the upper seed spoon transfers the tubers to the lower seed spoon, a seed protection channel is provided in the tuber storage box. The seed spoon can pass through the seed protection channel, and the operation of transferring the tubers is carried out in the seed protection channel to ensure successful transfer.

[0027] Beneficial effects: The potato tuber planter monitoring method of the present invention has the following beneficial effects:

[0028] (1) By arranging seed spoons in groups on the chain and managing the status of the seed spoons as needed, it is possible to achieve seed backup and transfer the backup tubers to the seed spoon group that is short of seeds or discard the excess tubers as needed. In this way, the problem of seed leakage in the seed spoon type seeder can be solved.

[0029] (2) In the prior art, a motor is used to accelerate the tubers of the next seed scoop into the seed discharge pipe to make up for the missing seeds. In the prior art, there is a delay in the motor acceleration, which will affect the planting spacing. In the prior art, the chain running speed needs to be adjusted according to the machine running speed to maintain the plant spacing. In comparison, in the present invention, the chain can be driven by the ground wheel to maintain the consistent plant spacing. The monitoring and adjustment process will not affect the plant spacing, and no additional computing power is required to maintain the plant spacing. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional structural diagram of the sowing part of the seeder;

[0031] Figure 2 It is a side view of the sowing part of the seeder;

[0032] Figure 3 for Figure 2 Middle AA section structure diagram;

[0033] Figure 4 This is the combined structure diagram of the seed spoon and the chain;

[0034] Figure 5 for Figure 3 The enlarged structure diagram of part B;

[0035] Figure 6 This is a structural diagram of the switching mechanism.

[0036] In the figure: 1-tuber storage box; 2-chain; 3-seed spoon; 31-seed spoon body; 32-seat; 33-support rod; 34-spring; 35-guide rod; 4-seed discharge pipe; 5-seed spoon detection sensor; 6-seed removal monitoring sensor; 7-switching mechanism; 71-transverse push block; 72-transverse push unit; 81-guide plate; 82-limiting plate; 83-tension spring; 9-seed protection channel. DETAILED DESCRIPTION

[0037] The present invention will be further described below in conjunction with the accompanying drawings.

[0038] like Figures 1 to 3 The potato tuber planter monitoring method shown in the figure comprises a tuber storage box 1, a chain 2, a seed scoop 3 and a seed discharge pipe 4, wherein the seed scoop 3 is equidistantly installed on the chain 2; a seed scoop detection sensor 5 and a seed removal monitoring sensor 6 are further provided, wherein the seed removal monitoring sensor 6 is used to detect whether there are potato tubers in the seed scoop 3; in this embodiment, the seed scoop detection sensor 5 is a proximity sensor. The seed removal monitoring sensor 6 is a camera, which determines whether there are potato tubers in the seed scoop 3 by image recognition.

[0039] When the chain 2 is running, the seed spoon 3 can circulate in and out of the tuber storage box 1, and the seed spoon 3 can take out the potato tubers in the tuber storage box 1 to achieve seeding. As the chain 2 runs, the seed spoon 3 carries the potato tubers into the seeding pipe 4, and the seeding pipe 4 puts the potato tubers into the furrows opened in the land to achieve sowing; the driving sprocket corresponding to the chain 2 is driven by the ground wheel, and the rotation speed of the ground wheel changes dynamically with the vehicle speed;

[0040] All the seed spoons 3 installed on the chain 2 form a plurality of seed taking groups, each of which includes two seed spoons 3 of the same height and disposed on both sides of the chain 2; the seed spoons 3 can be switched between a seed holding state and a release state relative to the chain 2;

[0041] The seed drill further includes a switching mechanism 7 capable of changing the state of the seed spoon 3; the seed taking monitoring sensor 6 is located below the switching mechanism 7;

[0042] The monitoring method includes the following steps S101-S103:

[0043] Step S101, obtaining the seed holding status of each seed spoon 3 in the seed spoon group through the seed taking monitoring sensor 6, and obtaining the seed holding status of the seed spoon group accordingly, the seed holding status of the seed spoon group including: double seed holding, single seed holding and double empty spoons; the double seed holding status means that both seed spoons 3 in the seed spoon group have potato tubers, the single seed holding status means that only one seed spoon 3 in the seed spoon group has potato tubers, and the double empty spoon status means that both seed spoons in the seed spoon group have no potato tubers;

[0044] Step S102, counting the comprehensive seed holding status of N consecutive seed spoon groups, where N is a preset fixed value; in this embodiment, N=3 is used for illustration;

[0045] Step S103, managing the status of the seed spoons 3 of each group according to the comprehensive seed holding situation; specifically: when a lower seed spoon group is short of seeds, the higher seed spoon group transfers excess tubers to the seed spoon group short of seeds; when no seed spoon group is short of seeds, the higher seed spoon group releases and discards excess tubers and returns them to the tuber storage box 1.

[0046] In the above method, by arranging the seed spoons 3 in groups on the chain 2 and managing the status of the seed spoons 3 as needed, it is possible to achieve seed backup, and transfer the backup tubers to the seed spoon group that is short of seeds or discard the excess tubers as needed. In this way, the problem of seed leakage in the seed spoon type seeder can be solved.

[0047] In the prior art, a motor is used to accelerate the tubers of the next seed scoop into the seed discharge pipe to make up for the missing seeds. However, there is a delay in the acceleration of the motor in the prior art, which will affect the planting spacing. In the prior art, the running speed of the chain needs to be adjusted according to the running speed of the machine to maintain the spacing. In comparison, in the present invention, the chain 2 can be driven by the ground wheel to maintain a consistent spacing. The monitoring and adjustment process will not affect the spacing, and no additional computing power is required to maintain the spacing.

[0048] Preferably, the management of the status of the seed spoons 3 of each group according to the seed distribution status in the above step S103 includes the following steps S201-S202:

[0049] Step S201, when the seed spoon detection sensor 5 generates a trigger signal each time, it is determined whether the current N seed spoon groups are all single-holding seed spoons or double-holding seed spoons, and a first determination result is obtained;

[0050] Step S202, when the first judgment result is yes: when the seed spoon group at the highest position in the N groups is in the double seed holding state, the switching mechanism 7 is used to discard the excess tubers;

[0051] Step S203, when the first judgment result is no: for the seed spoon group in the double empty spoon situation, determine whether there are extra tubers in the seed spoon group located higher than it, if yes, supplement the seed spoon group in the double empty spoon by transferring tubers so that it has potato tubers, otherwise, issue an alarm.

[0052] In addition, after executing the above steps S201-S203, the seed holding status of the highest seed spoon group is eliminated, and the seed holding status of a new group of seed spoon groups is added after the next seed spoon detection sensor 5 generates a trigger signal. In this way, continue to run the above steps S201-S203 for continuous operation.

[0053] In the above method, when the value of N is appropriate, continuous and trouble-free operation of the machine can be achieved.

[0054] When N=3, if the number of seeds held by the three seed spoon groups is 2, 2, 0 or 1, 2, 0 from high to low, the middle seed spoon group will replant the seed spoon group at the lowest position. If the number of seeds held by the three seed spoon groups is 2, 1, 0 from high to low, the seed spoon group at the highest position will replant the seeds to the middle seed spoon group, and the seed spoon group in the middle will replant the seeds to the seed spoon group at the lowest position. When the number of seeds held by the three seed spoon groups is 1, 1, 0 from high to low, an alarm will be issued.

[0055] Preferably, if Figure 4 As shown, the seed spoon 3 includes a seed spoon body 31 and a seat body 32 fixed on the link of the chain 2, and also includes a support rod 33; the seed spoon body 31 is rotatably installed relative to the seat body 32, the support rod 33 can slide relative to the seat body 32, and a spring 34 is provided between the support rod 33 and the seat body 32; a guide rod 35 is fixed on the support rod 33;

[0056] like Figure 6As shown, the switching mechanism 7 includes a transverse pushing block 71 capable of acting on the guide rod 35 and a transverse pushing unit 72 for translating the transverse pushing block 71 . In addition, it also includes a guide plate 73 with a guide groove, and the guide rod 35 can move in the guide groove. The guide groove has a vertically arranged main groove 73a. When the guide rod 35 moves in the main groove 73a, the seed spoon 3 is in a seed holding state (in the seed holding state, the seed spoon body 31 is placed horizontally, and there is not necessarily a tuber therein). The guide groove also includes a branch groove 73b deviating from the main groove and an inclined groove 73c connecting the branch groove 73b and the main groove 73a. When the guide rod 35 is placed in the branch groove 73b, the seed spoon 3 is in a released state. The horizontal push block 71 has a slot 71a for the guide rod 35 to pass through. After the guide rod 35 of the seed spoon 3 enters the slot 71a, when it is necessary to switch the seed spoon 3 to the released state, the horizontal push unit 72 causes the horizontal push block 71 to translate horizontally so that the slot 71a is docked with the branch groove 73b. After the guide rod 35 enters the branch groove 73b, the horizontal push unit 72 resets the horizontal push block 71. When the guide rod 35 moves in the branch groove 73b, the seed spoon 3 is maintained in a released state, and then the guide rod 35 returns to the main groove 73a via the inclined groove 73c, so that the seed spoon 3 returns to the seed holding state.

[0057] In the seed holding state, the support rod 33 presses against the bottom of the seed spoon body 31, so that the seed spoon body 31 is placed horizontally; the horizontal pushing unit 72 acts on the guide rod 35 through the horizontal pushing block 71, so that the support rod 33 leaves the bottom of the seed spoon body 31, and the seed spoon body 31 rotates downward to release the tuber.

[0058] Preferably, two sets of the switching mechanisms 7 are provided on each side of the chain 2, which are used to discard the tubers on the seed spoon 3 and transfer the tubers on the seed spoon 3 downwards respectively.

[0059] In order to prevent the seed spoon 3 from affecting the seed spoon 3 below when discarding the tuber, Figure 5 As shown, the tuber storage box 1 is provided with an inclined guide plate 81, and also includes a limit plate 82 and a tension spring 83 acting on the guide plate 81; the limit plate 82 limits the lowest position of the guide plate 81, and the guide plate 81 can rotate upward from the position of the limit plate 82, and the tension spring 83 makes the guide plate 81 have a tendency to rotate downward. During operation, the seed spoon 3 is pushed to rotate upward to pass through the edge of the guide plate 81 to reach the top of the guide plate 81 during the rising process, and then when the seed spoon 3 needs to discard the tuber, the switching mechanism 7 switches the seed spoon 3 to the release state, and the tuber released by the seed spoon 3 falls to the guide plate 81 and falls back to the tuber storage box 1 along the guide plate 81, and will not hit the seed spoon 3 below.

[0060] In order to prevent the tubers from falling when the upper seed spoon 3 is transferred to the lower seed spoon 3, resulting in transfer failure, a seed protection channel 9 is provided in the tuber storage box 1. The seed spoon 3 can pass through the seed protection channel 9, and the operation of transferring the tubers is carried out in the seed protection channel 9 to ensure successful transfer.

[0061] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A monitoring method for a potato tuber planter, the planter comprising a tuber storage box (1), a chain (2), a seed spoon (3) and a seed discharge pipe (4), wherein the seed spoons (3) are equidistantly mounted on the chain (2); and further comprising a seed spoon detection sensor (5) and a seed taking monitoring sensor (6); characterized in that: All the seed spoons (3) installed on the chain (2) form a plurality of seed taking groups, each of the seed taking groups comprising two seed spoons (3) of the same height and arranged on both sides of the chain (2); the seed spoons (3) can be switched between a seed holding state and a release state relative to the chain (2); The seed drill further comprises a switching mechanism (7) capable of changing the state of the seed spoon (3); Monitoring methods include: Acquiring the seed holding status of each seed spoon (3) in the seed spoon group through the seed taking monitoring sensor (6), thereby obtaining the seed holding status of the seed spoon group, the seed holding status of the seed spoon group including: double seed holding, single seed holding and double empty spoons; Counting the comprehensive seed holding status of N consecutive seed spoon groups, where N is a preset fixed value; The status of the seed spoons (3) of each group is managed according to the comprehensive seed holding situation; specifically: when a seed spoon group at a lower position is short of seeds, the seed spoon group at a higher position transfers excess tubers to the seed spoon group that is short of seeds; when no seed spoon group is short of seeds, the seed spoon group at a higher position releases and discards excess tubers.

2. The potato tuber planter monitoring method according to claim 1, characterized in that: The state of the seed spoons (3) of each group is managed according to the seed distribution status, including: When the seed spoon detection sensor (5) generates a trigger signal each time, it is determined whether the current N seed spoon groups are all in a single-holding seeding or double-holding seeding situation, and a first determination result is obtained; When the first judgment result is yes: when the seed spoon group at the highest position in the N groups is in a double-holding seeding situation, the switching mechanism (7) is used to make it discard excess tubers; When the first judgment result is no: for the seed spoon group with two empty spoons, determine whether there are extra tubers in the seed spoon group higher than it. If so, make up for the seed spoon group with two empty spoons by transferring tubers, otherwise issue an alarm.

3. The potato tuber planter monitoring method according to claim 1, characterized in that: The seed spoon (3) comprises a seed spoon body (31) and a seat body (32) fixed on the link of the chain (2), and also comprises a support rod (33); the seed spoon body (31) is rotatably mounted relative to the seat body (32), the support rod (33) can slide relative to the seat body (32), and a spring (34) is provided between the support rod (33) and the seat body (32); a guide rod (35) is fixed on the support rod (33); The switching mechanism (7) comprises a transverse pushing block (71) capable of acting on the guide rod (35) and a transverse pushing unit (72) for causing the transverse pushing block (71) to translate.

4. The potato tuber planter monitoring method according to claim 1, characterized in that: The seed spoon detection sensor (5) is a proximity sensor.

5. The potato tuber planter monitoring method according to claim 1, characterized in that: The seeding monitoring sensor (6) is a camera.

6. The potato tuber planter monitoring method according to claim 1, characterized in that: Two sets of the switching mechanisms (7) are provided on each side of the chain (2).

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