Drone Payload Weight Detection for Overload-Safe Takeoff
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Solution Overview
Problem
Existing flying apparatuses face instability due to excessive weight of transported bodies, leading to potential overloading and impaired flight stability.
Innovation Solution
Incorporating a weight detecting unit that calculates weight values from motor instruction signals, specifically DUTY values, to prevent takeoff if the weight exceeds a threshold, ensuring stable flight by preventing overloading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the flying apparatus transports a transported body, then the utility and application scope of the flying apparatus is improved, but the stability of flight deteriorates when the weight of the transported body is excessive
Solution Approach 1:
The patent implements preliminary weight detection and verification before takeoff. The weight detecting unit measures the transported body's weight prior to flight, and the calculation control unit verifies whether it exceeds the maximum weight. This preliminary action prevents unstable flight by stopping the takeoff process before it begins if the weight is excessive, thus resolving the contradiction between maintaining flight stability and expanding application scope.
Solution Approach 2:
The patent establishes a feedback mechanism where the weight detecting unit continuously monitors the transported body's weight, and the calculation control unit receives this information to make real-time decisions. The system provides feedback by comparing the detected weight with the maximum weight threshold and automatically adjusts the takeoff permission accordingly, ensuring flight stability while allowing versatile applications within safe limits.
2Measurement precision
If a load cell is used to measure the weight of the transported body, then the weight detection accuracy is improved, but the device complexity increases
Solution Approach 1:
The patent makes the calculation control unit multi-functional by enabling it to perform both the original control functions and the weight verification function. The calculation control unit receives weight information from the weight detecting unit, compares it with the maximum weight threshold, and makes takeoff decisions based on this comparison. This eliminates the need for a separate dedicated weight verification device, reducing overall device complexity while maintaining measurement precision through the existing load cell.
Data Source
AI summary
Provided is a flying apparatus and a method for controlling the same which are capable of preventing the flying apparatus from flying in a state where the weight of a transported body is excessive. A flying apparatus 10 comprises: an airframe base unit 16; a rotor 11; a motor 12; a calculation control unit 15; and a weight detecting unit 17. The rotor 11 rotates to generate thrust for causing the airframe base unit 16 to float. The motor 12 rotationally drives the rotor 11. The weight detecting unit 17 detects a weight value of a transported body 18. If the weight value detected by the weight detecting unit 17 exceeds a threshold weight value, the calculation control unit 15 does not permit takeoff.