PLC (Programmable Logic Controller) control method and device for filling agricultural seedling raising pot

Abstract

The invention discloses a PLC (programmable logic controller) control method and device for agricultural seedling pot filling, and the device comprises a PLC central control system, a seedling dropping system, a seedling inserting system, a pot opening system, a filling system, a split charging system and a collecting system, and the PLC central control system is in control connection with the seedling dropping system, the seedling inserting system, the pot opening system, the filling system, the split charging system and the collecting system. The filling system accurately controls the nutrient soil to be filled into the seedling pots, and the seedling pots fall into the sub-packaging system after being filled with the nutrient soil; after the seedling dropping system conveys seedlings to the position above the seedling inserting system, the seedlings fall into the seedling inserting system, the seedlings are inserted into the seedling raising pots filled with nutrient soil, the packaged seedling raising pots are conveyed to the transfer system, the transfer system adjusts the position to wait for the next packaged seedling raising pot to fall into, and all the functions can be carried out synchronously. The problems of waiting time and uncoordinated actions among subsystems are reduced, each execution system is ensured to work according to the optimal time sequence and action logic, and the seedling raising efficiency is remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, and in particular to a PLC control method and device for filling agricultural seedling pots. Background Art

[0002] At present, most systems only have one-way process control, that is, each subsystem must run independently and end before the next system can be carried out, resulting in reduced overall production efficiency. For example, in multiple steps such as seedling planting, seedling collection and transportation, packaging, filling, and potting, the equipment cannot work together, making it difficult to effectively allocate tasks and improve efficiency. Once an error occurs in a step, the interaction between the equipment will be chaotic, which may cause the operation process of the entire system to be interrupted, seriously affecting the stability of the system and increasing the risk cost of the system. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the first aspect of the present invention proposes a PLC control method for filling an agricultural seedling pot, including a PLC central control system, a seedling throwing system, a seedling transplanting system, a pot opening system, a filling system, a sub-packaging system, and a collection system. The PLC central control system is controlled and connected with the seedling throwing system, the seedling transplanting system, the pot opening system, the filling system, the sub-packaging system, and the collection system. The process steps include:

[0004] 1) Opening and filling system process:

[0005] After the pot opening system is activated by the PLC central control system, the pot taking-pot opening action is performed. After the pot opening system feedback action is completed, the PLC central control system issues a command; the filling system is started, and the filling system accurately controls the nutrient soil to be filled into the seedling pot, and the seedling pot falls into the sub-packaging system after the filling is completed; the PLC central control system issues a command to start the sub-packaging system, and the sub-packaging system transports the seedling pot to the bottom of the seedling transplanting system. At the same time, when the sub-packaging system is in place, the number of pots taken is increased by one, and through logical judgment, it is judged whether the number of seedling pots taken exceeds the threshold. If not, the pot opening-filling system process will continue;

[0006] 2) Seedling planting-seedling transplanting system process:

[0007] The seedling throwing system is activated by the PLC central control system. After the seedling throwing system transports the seedlings to the top of the seedling transplanting system, the seedlings fall into the seedling transplanting system. When the feedback from the packaging system is in place, the PLC central control system starts the seedling transplanting system and inserts the seedlings into the seedling pots filled with nutrient soil. After the seedling transplanting action is completed, the number of seedlings transplanted is increased by one. Through logical judgment, it is determined whether the number of seedlings transplanted exceeds the threshold. If not, the seedling throwing-seedling transplanting system process will continue.

[0008] 3)Transfer system process:

[0009] The PLC central control system sends out a command to start the packaging system, transports the packaged seedling pots to the transfer system, and feeds back the number of packaged seedling pots plus one. The PLC central control system sends out a signal, and the transfer system adjusts its position to wait for the next packaged seedling pot to fall in.

[0010] According to some embodiments of the present invention, the PLC central control system performs logical judgment through an internal counter. When the number of packaged seedling pots is lower than a set threshold, the seedling throwing-transplanting system process and the pot opening-filling system process are started simultaneously.

[0011] According to some embodiments of the present invention, when the dispensing system is in place, the number of bowls taken is increased by one, and a second logic judgment is performed to determine whether the number of bowls taken exceeds a threshold. If not, the bowl opening-filling system process will continue.

[0012] According to some embodiments of the present invention, after the seedling planting system action is completed, the number of seedlings planted is increased by one, and through logical judgment three, it is determined whether the number of seedlings planted exceeds a threshold. If not, the seedling planting-seedling planting system process will continue.

[0013] According to some embodiments of the present invention, when the operation mode is automatic mode, when the number of packaged seedling pots reaches a set threshold, the PLC control system will issue an instruction to start the transfer system. After the transfer system completes transporting the seedling pots to the designated location, it will automatically return and complete initialization. After initialization is completed, the transfer system will feedback a ready signal and automatically initialize each logical judgment, and restart operation from logical judgment link 1.

[0014] According to some embodiments of the present invention, when the operation mode is manual mode, when the number of packaged seedling pots reaches a set threshold, the system will issue an instruction to start the transfer system. After the transfer system transports the packaged seedling pots to the designated location, it will automatically return and complete the initialization. After the initialization of the transfer system is completed, a ready signal will be fed back, and the system process will be blocked to logic judgment 1. Pressing the reset button can clear the counter, skipping the initialization links of other subsystems, and restarting from logic judgment 1.

[0015] A second aspect of the present invention provides an agricultural seedling pot filling device, comprising a controller, wherein the controller executes a PLC control method for filling an agricultural seedling pot as described above.

[0016] The present invention has at least the following beneficial effects:

[0017] The system is divided into six subsystems: seedling delivery system, seedling transplanting system, transfer system, subpackaging system, filling system, and pot opening system, which are coordinated by the central control system to realize the functions of seedling transportation, seedling pot picking, filling into soil, seedling pot transplanting, collection and transportation, and subpackaging and delivery. Each function can be carried out simultaneously, reducing the waiting time and uncoordinated action problems between subsystems, ensuring that each execution system works according to the best time sequence and action logic, and significantly improving the efficiency of seedling cultivation.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 It is a schematic diagram of a system logic flow chart of an embodiment of the present invention. DETAILED DESCRIPTION

[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0022] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In the description of the present invention, the meaning of "a plurality" is more than two, and "greater than", "less than", "exceed" etc. are understood to exclude the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0024] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0025] Reference Figure 1A PLC control method for filling an agricultural seedling pot includes a PLC central control system, a seedling throwing system, a seedling transplanting system, a pot opening system, a filling system, a sub-packaging system, and a collection system. The PLC central control system is controlled and connected with the seedling throwing system, the seedling transplanting system, the pot opening system, the filling system, the sub-packaging system, and the collection system. The process steps include:

[0026] 1) Opening and filling system process:

[0027] After the pot opening system is activated by the PLC central control system, the pot taking-pot opening action is performed. After the pot opening system feedback action is completed, the PLC central control system issues a command; the filling system is started, and the filling system accurately controls the nutrient soil to be filled into the seedling pot. After the seedling pot is filled, it falls into the sub-packaging system; the PLC central control system issues a command to start the sub-packaging system, and the sub-packaging system transports the seedling pot to the bottom of the seedling transplanting system. At the same time, when the sub-packaging system is in place, the number of pots taken is increased by one. Through logical judgment, it is judged whether the number of seedling pots taken exceeds the threshold. If not, the pot opening-filling system process will continue;

[0028] 2) Seedling planting-seedling transplanting system process:

[0029] The seedling throwing system is activated by the PLC central control system. After the seedling throwing system transports the seedlings to the top of the seedling transplanting system, the seedlings fall into the seedling transplanting system. When the feedback packaging system is in place, the PLC central control system starts the seedling transplanting system and inserts the seedlings into the seedling pots filled with nutrient soil. After the seedling transplanting action is completed, the number of seedlings is increased by one. Through logical judgment, it is determined whether the number of seedlings exceeds the threshold. If not, the seedling throwing-seedling transplanting system process will continue.

[0030] 3)Transfer system process:

[0031] The PLC central control system sends out a command to start the packaging system, transport the packaged seedling pots to the transfer system, and feedback the number of packaged seedling pots plus one. The PLC central control system sends a signal, and the transfer system adjusts its position to wait for the next packaged seedling pot to fall in.

[0032] The system is divided into six subsystems: seedling delivery system, seedling transplanting system, transfer system, packaging system, filling system, and pot opening system, and is coordinated by the central control system to realize the functions of seedling transportation, seedling pot picking, filling into soil, seedling transplanting into pots, collection and transportation, as well as packaging and delivery; each function can be performed simultaneously, reducing the waiting time and uncoordinated action problems between subsystems, ensuring that each execution system works according to the optimal time sequence and action logic, and significantly improving the seedling cultivation efficiency.

[0033] The PLC central control system performs logical judgment through the internal counter. When the number of packaged seedling pots is lower than the set threshold, the seedling throwing-transplanting system process and the pot opening-filling system process are started at the same time.

[0034] When the dispensing system is in place, the number of bowls taken is increased by one, and through logical judgment 2, it is determined whether the number of bowls taken exceeds the threshold. If not, the bowl opening-filling system process will continue.

[0035] After the seedling planting system is completed, the number of seedlings planted is increased by one. Through logical judgment three, it is determined whether the number of seedlings planted exceeds the threshold. If not, the seedling planting system process will continue.

[0036] When the operation mode is automatic, when the number of packaged seedling pots reaches the set threshold, the PLC control system will issue a command to start the transfer system. After the transfer system completes the transportation of the seedling pots to the designated location, it will automatically return and complete the initialization. After the initialization is completed, the transfer system will feedback the ready signal and automatically initialize each logical judgment, and restart the operation from logical judgment link 1.

[0037] When the operation mode is manual mode, when the number of packaged seedling pots reaches the set threshold, the system will issue a command to start the transfer system. After the transfer system transports the packaged seedling pots to the designated location, it will automatically return and complete the initialization. After the transfer system is initialized, it will feedback the ready signal, and the system process will be blocked to logic judgment 1. Press the reset button to clear the counter, skip the initialization links of other subsystems, and restart from logic judgment 1.

[0038] An agricultural seedling pot filling device includes a controller, and the controller executes the PLC control method for filling the agricultural seedling pot as described above.

[0039] In the description of this specification, the description with reference to the terms "some embodiments" or "it is conceivable that" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A PLC control method for filling an agricultural seedling pot, characterized in that: It includes a PLC central control system, a seedling throwing system, a seedling transplanting system, a pot opening system, a filling system, a sub-packaging system, and a collection system. The PLC central control system is controlled and connected with the seedling throwing system, the seedling transplanting system, the pot opening system, the filling system, the sub-packaging system, and the collection system. The process steps include: 1) Opening and filling system process: After the pot opening system is activated by the PLC central control system, the pot taking-pot opening action is performed. After the pot opening system feedback action is completed, the PLC central control system issues a command; the filling system is started, and the filling system accurately controls the nutrient soil to be filled into the seedling pot, and the seedling pot falls into the sub-packaging system after the filling is completed; the PLC central control system issues a command to start the sub-packaging system, and the sub-packaging system transports the seedling pot to the bottom of the seedling transplanting system. At the same time, when the sub-packaging system is in place, the number of pots taken is increased by one, and through logical judgment, it is judged whether the number of seedling pots taken exceeds the threshold. If not, the pot opening-filling system process will continue; 2) Seedling planting-seedling transplanting system process: The seedling throwing system is activated by the PLC central control system. After the seedling throwing system transports the seedlings to the top of the seedling transplanting system, the seedlings fall into the seedling transplanting system. When the feedback from the packaging system is in place, the PLC central control system starts the seedling transplanting system and inserts the seedlings into the seedling pots filled with nutrient soil. After the seedling transplanting action is completed, the number of seedlings transplanted is increased by one. Through logical judgment, it is determined whether the number of seedlings transplanted exceeds the threshold. If not, the seedling throwing-seedling transplanting system process will continue. 3)Transfer system process: The PLC central control system sends out a command to start the packaging system, transports the packaged seedling pots to the transfer system, and feeds back the number of packaged seedling pots plus one. The PLC central control system sends out a signal, and the transfer system adjusts its position to wait for the next packaged seedling pot to fall in.

2. A PLC control method for filling an agricultural seedling pot according to claim 1, characterized in that: The PLC central control system performs logical judgment through an internal counter. When the number of packaged seedling pots is lower than a set threshold, the seedling throwing-seedling transplanting system process and the pot opening-filling system process are started simultaneously.

3. A PLC control method for filling an agricultural seedling pot according to claim 1, characterized in that: When the subpackaging system is in place, the number of bowls taken is increased by one, and through logical judgment 2, it is determined whether the number of bowls taken exceeds the threshold. If not, the bowl opening-filling system process will continue.

4. A PLC control method for filling an agricultural seedling pot according to claim 1, characterized in that: After the seedling planting system is completed, the number of seedlings planted is increased by one, and through logical judgment three, it is determined whether the number of seedlings planted exceeds the threshold. If not, the seedling planting-seedling planting system process will continue.

5. A PLC control method for filling an agricultural seedling pot according to claim 1, characterized in that: When the operation mode is automatic mode, when the number of packaged seedling pots reaches the set threshold, the PLC control system will issue an instruction to start the transfer system. After the transfer system completes transporting the seedling pots to the designated location, it will automatically return and complete initialization. After initialization is completed, the transfer system will feedback a ready signal and automatically initialize each logical judgment, and restart operation from logical judgment link 1.

6. A PLC control method for filling an agricultural seedling pot according to claim 1, characterized in that: When the operation mode is manual mode, when the number of packaged seedling pots reaches the set threshold, the system will issue a command to start the transfer system. After the transfer system transports the packaged seedling pots to the designated location, it will automatically return and complete the initialization. After the initialization of the transfer system is completed, a ready signal will be fed back, and the system process will be blocked to logic judgment 1. Pressing the reset button can clear the counter, skip the initialization links of other subsystems, and restart from logic judgment 1.

7. An agricultural seedling pot filling device, characterized in that: It includes a controller, which executes a PLC control method for filling an agricultural seedling pot as described in any one of claims 1 to 6.

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