Objectives of the service
The STARS system automates what a swim coach typically does with the stopwatch by using wireless wearable technology. On top of that, STARS also register Global Navigation Satellite System positional information and physiological output of the body next to biomechanical parameters. The latter are stroke rate, split times and breath rate. The method of measuring physiological response is heart rate registration.
Measurements performed on the wrist and through chest straps are not desirable for a swimmer. The resistance of the water creates undesirable drag in this approach. Furthermore, the feel for the water is inhibited at these locations by using these measurement techniques. Feel for the water is an essential element in swimming which is key in performing an efficient swimming stroke. Therefore, the proposed activity measures these parameters on the head of the athlete. By measuring on the head, the data is collected in a location where swimmers are used to wearing their gear without inhibiting feel for the water and without creating significant drag.
The STARS data is linked to a mobile and tablet application and delivers workout analysis providing swimmers and coaches with a novel way to track the performance and monitor the progress of the swimmers.
Users and their needs
The user needs are evaluated through panel talks with different user groups. The user groups consist of both swimmers and coaches and are split up in groups between open water swimming and triathlon.
The image below demonstrates the resulting buyer profiles or personas. It highlights for each customer segment whether the buyer profile consists of multiple people or not, the main goals and objectives and their biggest challenges. Additionally, their source of information, communication channels and expressive values are listed as well.
As can be seen from the above image, there is a difference in expectations between coaches and athletes on the one hand and between the sports of open water swimming and triathlon on the other hand. STARS is designed to address all these expectations in one system.
Service/ system concept
STARS is a wearable wireless advanced activity tracker for ambitious swimmers and/or their coaches. The system collects both biomechanical as well as physiological information and wirelessly transfers this data towards a mobile and tablet application. STARS serves as many swimmers as possible, ranging from competitive pool swimmers to open water triathletes.
Technically, this means that several subsystems need to be implemented into an electronic system, which in turn need to be inserted into a casing with high wearability for swimmers. Multiple sensors are integrated to measure the biomechanical information of the athletes. This data is parametrized to information on breathing patterns, stroke rates, pace and more. Physiological feedback is captured by a photoplethysmography (PPG) sensor. This data is parametrized to heart rate information.
The system communicates wirelessly with a tablet application which can connect with 10 devices. The latter allows for real-time monitoring of the swimmer(s) by the coach. Once a workout is done by a swimmer, the workout data is synced wirelessly with either the mobile or tablet application and hence, can be reviewed by the coach and/or athlete.
In order to put the swimmers’ data in a broader context, both applications have access to Satellite Earth Observation data.
Space Added Value
The specific space assets that contribute to the application are Satellite Navigation, Spaceflight Technologies, and Satellite Earth Observation.
Satellite Navigation is key to track swimmers which are performing their swim outside of a pool in open water. GNSS technology is the most suitable technology available to track this as open water swimming is commonly performed in remote and open nature areas. This makes satellite navigation the go to technology.
Spaceflight Technologies can contribute on multiple levels. The development of health sensors to track the athlete’s physiology contribute to the product. Furthermore, procedures to track humans and big data processing algorithms can be leveraged within this project to come to actionable insights for coaches and their swimmers.
Lastly, Satellite Earth Observation provides the opportunity to gather information on the environment at the location of the swimmer. Hereby, the trajectory and distance swum can be put into a broader and more correct context. This technology allows Swimtraxx to remain the most advanced swim tracker ever.
STARS project kicked off in April 2022.
During the past months, user panels were held among the different pilot user groups to update the user needs. The latter were translated into system requirements and documented. Additionally, the Business Plan was revised and updated.
The system design and architecture is under definition, with the selection of the components and the trade off among different possible solutions.