Array Knife-Type Cotton Topping Machine for Selective Bud Cutting
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Solution Overview
Problem
Existing cotton topping technologies face issues of high cost, complex control systems, and potential damage to crops due to dense actuator arrangements, as well as inefficiencies in topping precision and response speed when dealing with dense top buds.
Innovation Solution
An array cutting knife-type cotton topping machine with independently switchable topping devices, controlled by cameras and controllers, and a method that identifies top bud positions for precise cutting using a staggered arrangement and protective covers to minimize crop interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple actuators are densely arranged to improve topping success rate, then the success rate of topping is improved, but it is easy to accidentally damage other parts of the crop and cause twining branches and leaves with the actuators
Solution Approach 1:
The patent divides the topping operation into multiple independent actuators arranged in an array, where each actuator can be independently controlled to operate only when needed. This segmentation allows the system to maintain high reliability through multiple actuators while reducing harmful effects by activating only the specific actuator required for each top bud, rather than having all actuators operate simultaneously.
Solution Approach 2:
The patent implements dynamic control of actuator activation based on real-time detection of top bud positions. The system dynamically determines which actuators should be activated and which should remain inactive, allowing the actuator array to adapt its operation to the actual crop configuration. This dynamic approach maintains high success rates while minimizing damage to non-target crop parts.
2Manufacturing precision
If a multi-axis mechanical arm is used to achieve precision topping, then precision topping is achieved, but the cost is high, the scheduling control is complicated, and the response speed may be slow when top buds are dense
Solution Approach 1:
Instead of using a single complex multi-axis mechanical arm, the patent segments the topping function into multiple simple, independent actuators arranged in an array. Each actuator performs a simple linear reciprocating motion, and the complexity is distributed across multiple identical units rather than concentrated in one complex mechanism. This approach achieves precision through selective activation while keeping individual actuator complexity low.
Solution Approach 2:
The patent uses multiple copies of simple actuators rather than one complex mechanical arm. Each actuator is a simplified copy that performs the same basic function, and the system achieves precision through the coordinated selection and operation of appropriate copies based on detected top bud positions. This copying approach reduces individual component complexity while maintaining overall system precision.
Data Source
AI summary
Disclosed are an array cutting knife-type cotton topping machine and a control method thereof. The cotton topping machine includes cameras, controllers, a tacho-generator and a plurality of groups of topping assemblies arranged in a left-right direction; the cameras and the tacho-generator are connected to the controllers; and a plurality of topping devices staggered left and right are arranged for each planting row. In the present disclosure, by densely arranging low-cost topping devices and determining which topping devices are switched to an operating state for topping according to visually determined top bud positions, the potential problems in the prior art of the damage to other parts of the plant or the unnecessary intertwining of branches and leaves are avoided.