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==Short Description==
 
==Short Description==
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In ski jumping, low repetition rates of jumps limit effectiveness of training. Thus, increasing learning rate within every single jump is key to success. A critical element of athlete training is motor learning, which has been shown to be accelerated using feedback methods. Today, coach’s training feedback is mainly verbal and based on recorded video data. Video data provides good insight into the entire jump, however for an athlete to convert post-action video and speech information into actual motor control during action is difficult. Therefore, we aim to develop a system that translates sensor data into simple, motor-transferable information online and displays this to jumpers (e.g. via LEDs) during the execution of the jump.
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Ultrasound is a key technology in healthcare, and it is being explored for non-invasive, wearable, continuous monitoring of vital signs. However, its widespread adoption in this scenario is still hindered by the size, complexity, and power consumption of current devices. Moreover, such an application demands adaptability to human anatomy, which is hard to achieve with current transducer technology. In this work, we develop strategies and prototypes to advance ultrasound into a wrist-worn application, e.g. for monitoring vital signs.
  
 
===Status: Available ===
 
===Status: Available ===
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: Students will be co-supervised by the Center of Project Based Learning.
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: Looking for 1 Bachelor or Semester student
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: Looking for 1-2 Bachelor or Semester students / 1 Master student
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: Contact: [[:User:Cleitne | Christoph Leitner (iis)]], [mailto:marco.giordano@pbl.ee.ethz.ch Marco Giordano (pbl)]
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: Contact: [[:User:Cleitne | Christoph Leitner]], [mailto:schuluka@student.ethz.ch Lukas Schulthess (PBL)]
 
  
 
===Prerequisites===
 
===Prerequisites===
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: Embedded systems and PCB design
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: Creativity and solid research methodology (highly appreciated)
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: Microcontrollers
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: Additive manufacturing know-how and knowledge of CAD tools (e.g., SolidWorks)
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: Signal Processing
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===Status: Completed ===
 
===Status: Completed ===
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: Supervision: [[:User:Cleitne | Christoph Leitner]], Marco Giordano (PBL- ETHZ)
 
: Supervision: [[:User:Cleitne | Christoph Leitner]], Marco Giordano (PBL- ETHZ)
 
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===Character===
 
===Character===
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: 40% Hardware and PCB Design
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: 30% Mechanical Design
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: 30% Firmware Development
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: 30% Signal Processing
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: 20% Hardware evaluation and integration
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: 20% Literature Research
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: 10% Data analyses and documentation
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: 20% Data analyses and documentation
  
 
===Professor===
 
===Professor===
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==Detailed Task Description==
 
==Detailed Task Description==
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The main goal of this thesis is to design, build and test an intelligent ski goggle that provides in-action feedback to athletes. Goggles should inform athletes about their center of gravity positioning druing the in-run. For this purpose, sensor data is collected from the insole of ski boots and processed with a tinyML model. The extracted feedback information is displayed over a LED display inside the glasses. According to the level of the student and the chosen thesis type (BT/ST/MT) the work will include some or all following tasks:  
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The focus of this work is to support the development of an ultrasound technology and its adaptation to a wrist-worn application. Depending on the level of the student and the type of work chosen (B/S/M), the work will include some or all of the following tasks:  
  
 
===Goals===
 
===Goals===
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=====Hardware and PCB Design=====
 
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* Creation of design proposals for the integration of a visual biofeedback in ski goggles.
 
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* Development of a benchtop prototype using a nRF52 development kit (Nordic Semiconductor)
 
  
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=====Firmware Development=====
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=====Literature Research=====
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* Implementation of biofeedback data transmission via BLE using two nRF52 microcontrollers (on the sensor node and in the glasses).  
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* Research of commercially available coupling media
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* Conversion of tinyML outputs into visual feedback.
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* Evaluation of coupling media in terms of: acoustic properties (e.g., attenuation), 3d design and integration, farbication complexity, cost.  
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=====Testbench Design=====
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* Design of a coupling media testbench
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* Design of casts and fabrication of prototypes
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* Development of software for testing
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* Prototype integration into a wrist band
  
 
=====Testing=====
 
=====Testing=====
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* Analyses of data transfer quality using BLE (e.g., identification of losses, delay times,..)
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* Ultrasound characterization of coupling media
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* Testing in lab conditions and in a real world scenario
 
  
 
===Practical Details===
 
===Practical Details===
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[[#top|↑ top]]
 
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[[Category:Digital]]
 
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[[Category:Wearables for Sports and Fitness]]
 
[[Category:Wearables for Sports and Fitness]]
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[[Category:USsignals]]
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[[Category:UScharacterization]]
 
[[Category:Ultrasound]]
 
[[Category:Ultrasound]]
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[[Category:WearablesSF_testing]]
 
[[Category:SmartSensors]]
 
[[Category:SmartSensors]]
 
[[Category:Available]]
 
[[Category:Available]]
 
[[Category:Semester Thesis]]
 
[[Category:Semester Thesis]]
 
[[Category:Cleitne]]
 
[[Category:Cleitne]]
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Latest revision as of 12:43, 23 July 2023

Fitness tracker coupling.png


Short Description

Ultrasound is a key technology in healthcare, and it is being explored for non-invasive, wearable, continuous monitoring of vital signs. However, its widespread adoption in this scenario is still hindered by the size, complexity, and power consumption of current devices. Moreover, such an application demands adaptability to human anatomy, which is hard to achieve with current transducer technology. In this work, we develop strategies and prototypes to advance ultrasound into a wrist-worn application, e.g. for monitoring vital signs.

Status: Available

Looking for 1 Bachelor or Semester student
Contact: Christoph Leitner (iis), Marco Giordano (pbl)

Prerequisites

Creativity and solid research methodology (highly appreciated)
Additive manufacturing know-how and knowledge of CAD tools (e.g., SolidWorks)
Signal Processing

Character

30% Mechanical Design
30% Signal Processing
20% Literature Research
20% Data analyses and documentation

Professor

Luca Benini

↑ top

Detailed Task Description

The focus of this work is to support the development of an ultrasound technology and its adaptation to a wrist-worn application. Depending on the level of the student and the type of work chosen (B/S/M), the work will include some or all of the following tasks:

Goals

Literature Research
  • Research of commercially available coupling media
  • Evaluation of coupling media in terms of: acoustic properties (e.g., attenuation), 3d design and integration, farbication complexity, cost.
Testbench Design
  • Design of a coupling media testbench
  • Design of casts and fabrication of prototypes
  • Development of software for testing
  • Prototype integration into a wrist band
Testing
  • Ultrasound characterization of coupling media

Practical Details


Links

↑ top


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