Sensors

Mobile Robotics - More than just localization and planning

A talk about mobile robots for industrial application

B75i

Development of the autonomous scrubbing machine B75i.

A novel Chlorophyll Fluorescence based approach for Mowing Area Classification

Detecting cost-effectively and accurately the working area for autonomous lawn mowers is key for widespread automation of garden care. At present this is realized by means of perimeter wire, which leads to high setup and maintenance costs. Here, we …

Exploiting Chlorophyll Fluorescense for building robust low-cost Mowing Area Detectors

A talk about a low-cost mowing area detector

Exploiting Chlorophyll Fluorescense for building robust low-cost Mowing Area Detectors

Detecting cost-effectively and accurately the working area for autonomous lawn mowers is key for widespread automation of garden care. Therefore, we propose an active low-cost sensor approach for detecting fluorescence response. The area to be …

A-DRZ (expired)

Aufbau des Deutschen Rettungsrobotik-Zentrums (A-DRZ)

Plant Classification based on Chlorophyll Detection for autonomous Gardening

Abstract Upon illumination of a sufficient amount of light, the chlorophyll molecules of a plant start to emit photons in the far red region of the light spectrum. This phenomenon is also known as chlorophyll fluorescence. In this thesis a classi- fier is built that serves as a benchmark for plant classification via chlorophyll a fluorescence. A data set of 2500 samples was acquired by illuminating a total of 500 leaves gathered from five different plants with seven LEDs.

Machine Learning for plant classification based on chlorophyll detection

Abstract Based on the intention to build an autonomous lawn mower robot, this work examines the viability of a sensor and microprocessor for onboard plant clas- sification using machine learning. Usually, some sort of fencing is required to keep the robot in its intended processing area, so such a sensor would allow the robot to differentiate between grass and e.g. flowers. Also, the drive and blade speed can be adjusted for certain species or plant densities, etc.

Development of an electromagnetic Tracking System for use in Medical Interventions

Abstract Medical interventions are often supported by imaging and position-determining procedures. In this thesis we investigate to what extent electromagnetic tracking systems can be used for accurate positioning. The focus is first on 2D, then on 3D systems.