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Absolute Motion Analysis- General Plane Motion01:24

Absolute Motion Analysis- General Plane Motion

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Visualize a drone, with its propellers spinning rapidly, hovering mid-air. The fascinating movements and operations of this drone can be comprehended by applying the principle of general plane motion.
As the drone's propellers rotate, an upward force is generated that counteracts the force of gravity, enabling the drone to lift off from the ground. This initial movement of the drone is along a straight path, representing a form of translational motion. In this phase, every point on the...
246
Relative Motion Analysis - Velocity01:24

Relative Motion Analysis - Velocity

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A stroke engine has a slider-crank mechanism that converts rotational motion from the crank into linear motion of the slider or vice versa. This mechanism consists of three main parts: the crank, the connecting rod, and the slider.
When an external force is exerted, it sets the crank into a rotational movement. This, in turn, instigates the motion of the connecting rod, leading to what is referred to as a general plane motion. This process involves two key points - point A on the connecting rod...
397
Relative Motion Analysis - Acceleration01:10

Relative Motion Analysis - Acceleration

388
A slider-crank mechanism converts rotational motion from the crank into linear motion of the slider or vice versa. This mechanism consists of three main parts: the crank, the connecting rod, and the slider. The movement of the slider-crank is an example of general plane motion as the fluctuating angle between the crank and the connecting rod. Consider a segment AB where point A is at the end of the slider and point B is on the diametrically opposite end to point A, on a crack. The variance in...
388

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Updated: Aug 8, 2025

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UWB Sensing for UAV and Human Comparative Movement Characterization.

Angela Digulescu1, Cristina Despina-Stoian1, Florin Popescu1

  • 1Department of Communications and Information Technology, "Ferdinand I" Military Technical Academy, 050141 Bucharest, Romania.

Sensors (Basel, Switzerland)
|February 28, 2023
PubMed
Summary
This summary is machine-generated.

This study differentiates drone and human movement indoors using UWB sensors. Advanced signal processing distinguishes unauthorized drone intrusions from permitted human presence in secure areas.

Keywords:
LSS UAVUWB sensingmovement mapphase diagram entropy

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Area of Science:

  • Robotics and Control Systems
  • Sensor Technology
  • Signal Processing

Background:

  • Unmanned aerial vehicles (UAVs) or drones are increasingly implicated in security incidents.
  • Distinguishing drone activity from human presence is crucial for indoor security.
  • Drones pose a potential threat for unauthorized indoor/office intrusion.

Purpose of the Study:

  • To comparatively characterize the movement patterns of drones and humans in an indoor environment.
  • To develop methods for differentiating drone and human movement for security applications.
  • To assess the feasibility of using UWB sensors for indoor movement detection.

Main Methods:

  • Utilized Ultra-Wideband (UWB) sensors to acquire movement signals.
  • Applied advanced signal processing techniques, including wavelet transform.
  • Employed the phase diagram concept for movement characterization.

Main Results:

  • Successfully generated movement maps differentiating drone and human trajectories.
  • Demonstrated the effectiveness of wavelet transform and phase diagrams in movement characterization.
  • Provided a comparative analysis of drone versus human movement signatures.

Conclusions:

  • The proposed methods can effectively distinguish between drone and human movement indoors.
  • UWB sensing combined with advanced signal processing offers a viable solution for drone detection.
  • This research contributes to enhanced security protocols against unauthorized drone intrusions.