UAV Motor Power Wiring With Embedded Data Communication
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Solution Overview
Problem
The increasing presence of unmanned aerial vehicles (UAVs) in residential areas poses challenges for data transmission and weight reduction, as they require dedicated wires for data communication, which can be cumbersome and weight-intensive.
Innovation Solution
Embedding data into the power signal using frequency modulation, such as frequency-shift keying (FSK), allows for the removal of dedicated data wires by transmitting data through the power supply to the motors, enabling weight savings and redundancy in data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dedicated data wires are used for communication between control system and motors, then data transmission reliability is improved, but system weight increases
Solution Approach 1:
The patent combines data communication and power transmission functions into a single wire system. The control system modulates data onto the power signal waveform, allowing both power delivery and data transmission through the same physical medium, thereby eliminating dedicated data wires and reducing overall system weight.
Solution Approach 2:
The power wires are made multi-functional by enabling them to carry both power delivery and data communication tasks simultaneously. The modulation technique allows the existing power infrastructure to serve dual purposes, removing the need for separate communication channels and reducing weight.
2Weight of moving object
If dedicated data wires are removed and data is embedded in power signal, then system weight is reduced, but data transmission complexity increases
Solution Approach 1:
The patent replaces the mechanical/wire-based dedicated data transmission system with an electromagnetic modulation approach. By encoding data onto the power signal waveform using frequency modulation, the system eliminates physical data wires while managing complexity through signal processing techniques.
Solution Approach 2:
The patent changes the parameters of the power signal by modulating its frequency to encode data. This allows data transmission through variations in the power signal's characteristics rather than requiring separate communication channels, reducing weight while managing complexity through parameter manipulation.
3Reliability
If multiple wires are used for both power and data, then communication redundancy is improved, but device complexity increases
Solution Approach 1:
The patent merges power and data communication into a single wire system, reducing the total number of wires required. This consolidation decreases device complexity while maintaining communication capabilities through the combined power-data signal.
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
This solution enables efficient data transmission without additional weight, enhancing the performance and efficiency of UAVs by eliminating the need for dedicated data wires while maintaining reliable communication between the control system and motors.
Implementation Method 1
Embedding data into the power signal using frequency modulation, such as frequency-shift keying (FSK)
Data Source
AI summary
Techniques for an unmanned aerial system that embeds data into power sent from a control system to one or more motors so that one or more wires between the control system and the one or more motors can be used to transmit power and data are described. As one example, an unmanned aerial system includes a sensor, a control system comprising alternating current power generation circuitry and first embedded data communication circuitry, and a motor system coupled to the control system via a set of one or more wires and comprising at least one motor to provide propulsion from power generated by the alternating current power generation circuitry and second embedded data communication circuitry to embed data from the sensor into the power generated by the alternating current power generation circuitry to produce modulated power, wherein the first embedded data communication circuitry is to extract the data from the modulated power. The unmanned aerial system may include a second set of one or more wires dedicated to send the data from the sensor to the control system.