Brushless Pump Motor System for UAV Spraying
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Solution Overview
Problem
Conventional agricultural spraying apparatuses are heavy, complex, and difficult to control, making it challenging to efficiently spray pesticides and fertilizers, especially when used in aerial systems like UAVs, due to issues with velocity and pressure control of the spraying liquid.
Innovation Solution
A controlled pumping system for agricultural UAVs, incorporating a brushless motor and electronic speed controller, which allows for precise control of the pumping operation, improving the efficiency and safety of spraying operations by enabling remote control and reducing the weight and volume of the system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional pumping systems are used in agricultural spraying apparatus, then the system can perform spraying operations, but the equipment becomes heavy and complicated, making it difficult to control
Solution Approach 1:
The patent replaces conventional mechanical pumping systems with an electronically controlled brushless DC motor system. The motor is driven by electronic speed control circuitry that receives signals from a ground remote controller or GPS, substituting complex mechanical transmission components with electronic control mechanisms. This reduction in mechanical complexity makes the system lighter and easier to control while maintaining spraying functionality.
2Reliability
If conventional pumping systems are used, then the system can spray liquid, but the velocity and pressure of sprayed liquid cannot be controlled precisely
Solution Approach 1:
The patent incorporates electronic speed control circuitry that monitors and adjusts the motor's operating parameters in real-time. The controller receives feedback about the pump's performance and adjusts the motor speed accordingly to maintain precise control over liquid velocity and pressure. This electronic feedback loop enables precise control that mechanical systems cannot achieve.
Solution Approach 2:
The system uses a brushless DC motor with electronic speed control that can dynamically adjust its operating characteristics. The motor speed and pump output can be varied continuously based on control signals, allowing precise adjustment of spray velocity and pressure. This dynamic control capability replaces fixed mechanical transmission ratios with electronically adjustable parameters.
3Reliability
If conventional spraying equipment is used in aerial systems, then spraying can be performed, but the system lacks mobility and efficiency
Solution Approach 1:
The patent replaces heavy conventional mechanical pumping equipment with a compact brushless DC motor system that can be integrated into aerial vehicles. The electronic control system allows the pump to be efficiently controlled from the ground or autonomously via GPS, enabling mobile aerial spraying operations that were not feasible with traditional heavy equipment. This substitution dramatically improves mobility and aerial spraying productivity.
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 solution enhances the efficiency of agricultural spraying by allowing precise control of the spraying fluid, reducing the weight and volume of the pumping system, and improving safety by enabling UAV operation over long distances without exposing the operator to pesticides, while also conserving resources (50% pesticide and 90% water savings).
Implementation Method 1
a brushless motor may be operatively coupled to the pump and operate to effect operation of the pump
Data Source
AI summary
Systems and methods can control a pumping system. Operating characteristics of a driving apparatus are obtained. The driving apparatus is operatively coupled to a pump and operates to effect operation of the pump. Additionally, instructions are provided to an electronic speed controller. In particular, the instructions direct the electronic speed controller to control activity of the driving apparatus.