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Difference between revisions of "Wireless In Action Data Streaming in Ski Jumping (1 B/S)"

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[[File:SkiJumpingArena_l.png|thumb|600px]]
[[File:SkiJumperInAir.png|thumb|]]
 
  
  
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==Short Description==
 
==Short Description==
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 oral and based on recorded video data. Video data provides good insight into the entire jump, however translating video information into actual motor control is difficult
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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, training feedback from coaches is mainly verbal and based on recorded video data. To improve modern feedback methods in ski jumping, we aim to develop a system that collects athlete performance data with a body-worn sensor node and transmits the information to the coach in real time. This requires reliable wireless communication with sufficient bandwidth and range.
 
 
To improve current feedback methods, we want to develop an in-action system that converts sensor node data into simple yet motor-transferable information. To do this, data must be transmitted between onbody sensor nodes as well as between a sensor node master and the coaching tower. This requires reliable wireless communication with sufficient bandwidth and range.
 
 
 
  
 
===Status: Available ===
 
===Status: Available ===
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The main objective of this work is to implement and test a reliable Bluetooth Low Energy Coded PHY radio communication
 
The main objective of this work is to implement and test a reliable Bluetooth Low Energy Coded PHY radio communication
 
between an existing sensor node and a gateway. Field measurements (also with real ski jumpers) shall demonstrate the performance of the developed system. According to the level of the student and the chosen thesis type (BT/ST) the work will include some or all following tasks:  
 
between an existing sensor node and a gateway. Field measurements (also with real ski jumpers) shall demonstrate the performance of the developed system. According to the level of the student and the chosen thesis type (BT/ST) the work will include some or all following tasks:  
[[File:SkiEdgingAngles.png|thumb|]]
 
  
 
===Goals===
 
===Goals===
=====Sensors and Acquisition=====
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=====Firmware Development=====
* Investigation and evaluation of various commercially available sensor technologies (IMUs, pressure sensors).
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* Implement the BLE coded PHY stack on a nRF52 microcontroller (Nordic semiconductors) integrated in an existing multisensor system for ski-jumping
* Evaluation of the attachment of sensors to skis and in boots.
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=====Characterization=====
* Use an in-house multipurpose embedded systems controller (Vitalcore) to build & test data collection with sensors.
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Characterization of data transmission quality and identification of losses using BLE coded PHY in various laboratory scenarious:
=====Communication and Data Transfer=====
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* with increasing distance between source and target
* Develop a data transfer strategy to
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* with high velocity differences between source and target.
** collect data from two different sensors, and  
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* Using synthetic and/or real sensor data
** to transmit synchronized (raw) data to the coaching tower.
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=====Field Test=====
** Use an in-house multipurpose embedded systems controller (Vitalcore) to test data transfers via BLE.
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* Transfer of the measurment setup on a ski jumping hill.
** Test data transfer in ski jumping arena situation and revaluate transfer strategy if necessary.
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* Validation of the system in a real-world scenario.  
=====Assembly and Test=====
 
* Make a PCB board design for the readout system.
 
* Design a casing to attach sensors system on the skis or shoes. Aiming for a minimalistic form-factor and weight.
 
* Test, build and evaluate a working prototype in laboratory conditions and in a real-life environment.
 
  
  
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[[Category:Wearables for Sports and Fitness]]
 
[[Category:Wearables for Sports and Fitness]]
 
[[Category:SmartSensors]]
 
[[Category:SmartSensors]]
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[[Category:WearablesSF_fw]]
 
[[Category:Available]]
 
[[Category:Available]]
 
[[Category:Group Work]]
 
[[Category:Group Work]]

Latest revision as of 12:15, 23 July 2023

SkiJumpingArena l.png




Short Description

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, training feedback from coaches is mainly verbal and based on recorded video data. To improve modern feedback methods in ski jumping, we aim to develop a system that collects athlete performance data with a body-worn sensor node and transmits the information to the coach in real time. This requires reliable wireless communication with sufficient bandwidth and range.

Status: Available

Students will be co-supervised by the Center of Project Based Learning.
Looking for 1-2 Semester/Master students
Contact: Christoph Leitner, Lukas Schulthess (PBL)

Prerequisites

Embedded systems and PCB design
Microcontrollers

Character

60% Firmware Development
20% Fieldwork
10% Hardware evaluation and integration
10% Data analyses and documentation

Professor

Luca Benini

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Detailed Task Description

The main objective of this work is to implement and test a reliable Bluetooth Low Energy Coded PHY radio communication between an existing sensor node and a gateway. Field measurements (also with real ski jumpers) shall demonstrate the performance of the developed system. According to the level of the student and the chosen thesis type (BT/ST) the work will include some or all following tasks:

Goals

Firmware Development
  • Implement the BLE coded PHY stack on a nRF52 microcontroller (Nordic semiconductors) integrated in an existing multisensor system for ski-jumping
Characterization

Characterization of data transmission quality and identification of losses using BLE coded PHY in various laboratory scenarious:

  • with increasing distance between source and target
  • with high velocity differences between source and target.
  • Using synthetic and/or real sensor data
Field Test
  • Transfer of the measurment setup on a ski jumping hill.
  • Validation of the system in a real-world scenario.


Practical Details


Links

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