Multi-Rotor Rescue Thrower Trajectory Control
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Solution Overview
Problem
Conventional rescue throwers are heavily dependent on the operator's technical skill, vulnerable to external factors like weather, and unable to adjust the trajectory of the projectile body after launch, making them ineffective in rapidly changing emergency situations.
Innovation Solution
A multi-rotor intelligent thrower with a rotor structure, including a throwing projectile head, projectile body shell, rotors, flight control module, visual module, and laser radar, which uses data fusion and control algorithms to adjust the position and posture of the projectile for precise landing, minimizing external interference and allowing for real-time tracking of a fall point.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a conventional gas-powered thrower is used, then the throwing distance can reach 200-300 meters, but the throwing effect is heavily dependent on the operator's technical skill and external factors like weather
Solution Approach 1:
The patent replaces the conventional gas-powered mechanical throwing system with an electromagnetic launching system. The electromagnetic launcher uses electromagnetic force to accelerate the projectile to high speeds, eliminating the need for manual gas pressure control and mechanical aiming mechanisms. This substitution provides precise electronic control over launch parameters while maintaining simple operation through automated control algorithms.
Solution Approach 2:
The thrower incorporates autonomous navigation capabilities with onboard sensors, processors, and control systems that enable the projectile to independently calculate and adjust its trajectory after launch. The system uses real-time data from GPS, accelerometers, and other sensors to self-correct its path and automatically target the落水 point, eliminating the need for complex manual operation while achieving high precision.
2Adaptability or versatility
If a conventional thrower is used, then the projectile can be launched quickly, but the track and fall point cannot be corrected after ejection
Solution Approach 1:
The patent implements a dynamic trajectory adjustment system where the projectile's flight path can be modified in real-time during flight. The onboard control system continuously monitors the projectile's position and velocity, then adjusts the trajectory by controlling variable thrust vectors or aerodynamic surfaces. This dynamic capability allows the system to adapt to changing conditions and correct for wind drift or target movement while maintaining manageable system complexity through modular design.
Solution Approach 2:
The thrower incorporates a feedback control system that uses onboard sensors (GPS, accelerometers, gyroscopes) to continuously monitor the projectile's flight state and compares it with the desired trajectory. The control processor calculates correction commands and sends them to the actuation system to adjust the flight path in real-time. This closed-loop feedback mechanism enables precise trajectory control without requiring overly complex mechanical structures.
3Measurement precision
If a multi-rotor intelligent thrower is used, then precise landing can be achieved through real-time tracking, but the device complexity increases
Solution Approach 1:
The patent integrates multiple functions into a single unified system. The multi-rotor platform serves simultaneously as the launch mechanism, the navigation vehicle, and the delivery system. The same rotors used for propulsion and positioning are also used for trajectory adjustment during flight. The onboard sensor suite performs multiple functions including navigation, terrain mapping, and target acquisition. This multi-functionality reduces overall system complexity compared to having separate systems for each function.
Solution Approach 2:
The patent merges the launch system and navigation system into a single integrated platform. The multi-rotor vehicle is launched and then autonomously navigates to the target, combining what would traditionally be separate throwing and guidance systems. The control system integrates motor control, navigation algorithms, and sensor processing into a unified architecture. This merging reduces the number of separate components and interfaces, managing complexity while achieving precise landing.
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 multi-rotor thrower achieves a simple operation, reduced external interference, and an extended effective throwing distance with precise landing capabilities, enhancing response times and adaptability in emergency scenarios.
Implementation Method 1
A thrower structure with rotors is provided, including a throwing projectile head (1), a projectile body shell (2), connecting flanges (3), three rotors (4), motors (5)... the rotors (4) are provided in the space in the cavity of the projectile body shell (2)
Implementation Method 2
the parachute storage bin (13) is mounted at a center of a front end of the throwing projectile head (1)... air entering the cavity from a bottom and being discharged by the rotors (4) in a falling process of the thrower
Data Source
AI summary
In an intelligent multi-rotor rescue thrower, a throwing projectile head is located at a foremost end of the thrower, a parachute storage bin is mounted at a center of a front end of the throwing projectile head, a rear end of the throwing projectile head is connected to a projectile body shell through threads, and a first splitter plate, a second splitter plate, and a third splitter plate are directly connected to the projectile body shell through slide grooves built in the projectile body shell to equally divide a space in a cavity of the projectile body shell; connecting flanges tightly connect the projectile body shell to motors, a rotor is connected to an upper end of each of the motors, and three rotors are provided in the space in the cavity of the projectile body shell.