Pneumatic Pollination Device for Hybrid Rice Seed Production
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Solution Overview
Problem
Current pollination methods for hybrid rice seed production are inefficient and labor-intensive, particularly for large-scale production, as there is a lack of suitable mechanized equipment capable of handling high row ratios and ensuring directional and uniform pollination.
Innovation Solution
A pneumatic pollination device with a large row ratio, comprising a pneumatic pollination component, a controller, and a four-wheel power chassis, featuring adjustable airflow velocity sensors and blowers, which enables directional and uniform pollination by controlling airflow to transport pollen from male to female rice plants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional manual pollination methods are used, then pollination can be completed, but productivity is extremely low and labor intensity is high
Solution Approach 1:
The patent replaces manual mechanical pollination operations with a pneumatic system that uses airflow to transport pollen. The pneumatic pollinator uses fans to generate controlled air currents that carry pollen from male to female rice plants, eliminating the need for manual rod-based pollination methods and significantly reducing labor intensity while improving productivity
Solution Approach 2:
The patent employs pneumatic principles by using fans to generate controlled airflow that transports pollen through the air from male to female plants. The pneumatic system creates directed air currents that efficiently move pollen over the required distances, enabling mechanized pollination without direct mechanical contact with the plants
2Extent of automation
If micro unmanned aerial vehicles are used for pollination, then mechanization is achieved, but the vertical airflow is not conducive to pollen spreading to female parent
Solution Approach 1:
The patent employs asymmetric horizontal airflow generation rather than symmetric vertical airflow. The fans are positioned and oriented to create horizontal air currents that move pollen laterally from male to female plants, matching the horizontal row arrangement of rice plants in the field, thereby improving pollen delivery efficiency
Solution Approach 2:
The patent changes the airflow direction from vertical (as in UAVs) to horizontal, aligning with the spatial arrangement of rice plants in rows. This dimensional change in airflow direction enables effective pollen transport between horizontally spaced male and female plants, achieving both mechanization and high pollination rates
3Adaptability or versatility
If small row ratio (1:3, 1:4, 2:6, 2:8) is used, then traditional pollination methods can be applied, but large-scale seed production requirements cannot be met
Solution Approach 1:
The patent employs dynamically adjustable pollinators that can modify their position, airflow strength, and orientation in real-time. This dynamic capability allows the system to adapt to various row ratios and plant configurations, maintaining effective pollination across different field layouts while preserving high productivity
Solution Approach 2:
The pneumatic pollination system is designed with universal applicability to handle multiple row ratios (1:3, 1:4, 2:6, 2:8 and larger ratios). The adjustable pollinators can be configured for different spacing arrangements, making the system versatile for various large-scale production requirements while maintaining high pollination efficiency
4Productivity
If rope powder pulling method is used, then productivity is slightly higher, but pollen utilization rate is low and plant damage is serious
Solution Approach 1:
The patent replaces the mechanical rope-based pollination system with a pneumatic system that uses airflow instead of physical contact. This substitution eliminates the mechanical damage caused by ropes to rice plants while maintaining high pollination speed through efficient airborne pollen transport
Solution Approach 2:
The patent introduces air flow as an intermediary medium to transport pollen from male to female plants. This intermediary approach allows pollen transfer without direct mechanical contact between the pollination device and plants, preventing plant damage while maintaining high productivity through efficient pneumatic pollen delivery
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device significantly enhances pollination productivity, improves mechanization, and ensures high-quality seed production by efficiently transporting pollen across large areas, addressing labor shortages and equipment limitations in existing methods.
Implementation Method 1
a blower (14) connected to the air inlet of the pollination pipe, wherein the blower (14) generates airflow to transport pollen from the male parent to the female parent through the pollination pipe
Data Source
AI summary
A pneumatic pollination device and a method for hybrid rice seed production with a large row ratio are provided. The pneumatic pollination device includes a pneumatic pollination component, a controller, a lifting adjustment component and a four-wheel power chassis. The pneumatic pollination component is mounted at the front part of the four-wheel power chassis through the lifting adjusting component, and the controller is mounted at the upper part of the four-wheel power chassis. The airflow of each pollination pipe respectively acts on the spike part of the male parent row of corresponding hybrid rice, so that the male pollen is separated from stamens and floats to the female compartment. The airflow velocities of the pollination pipes of respective male parent rows are different to ensure that the pollen is conveyed to the main female parent action region.