InLOT System

 
 Introduction    KLiC Software (new)   InLOT Software (old) 
 

An innovative sensor data collection tool for educational and sport activities.

The InLOT system is an innovative sensor data collection tool designed for use in the educational and sports environments, that provides the teacher or the trainer with the means to monitor the student or athlete performance during specific physical activities, take corrective actions and follow-up the progress of the student or athlete during a certain time period or a full season. The system makes use of the most advanced wireless communication technologies based on the ΙEEE 802.15.4 standard to acquire physiological data, such as heart rate (ECG), respiration rate, external body temperature and body acceleration as well as hand and/or leg acceleration information from up to six (6) students/athletes at the same time.

In order to widen the scope of physical activities, that can be monitored, a suitably modified ball with an embedded 3-dimensional acceleration sensor can also be incorporated into the InLOT system allowing for the study and analysis of more composite actions and movements, that readily take place in common sports, such as football, basketball, volleyball, etc.

All sensor data acquired in the course of a physical activity are stored in the InLOT monitoring station, where they can be :

  • displayed and analyzed off-line.
  • further processed to derive additional parameters characterizing the student/ athlete effort and performance level.

Further to this, the InLOT monitoring station software allows the user to observe in real-time the values and associated waveforms from selected sensors of selected students/athletes or ball(s) participating into the physical activity under observation.

InLOT SYSTEM USER INTERFACE

The user interface of the InLOT software is simple and intuitive. At the beginning of each event the user needs only to define :

The number of students or athletes participating into the activity.
The sensors assigned to each participating student or athlete.
If there is going to be a ball or not in the activity.

Subsequently, after the students or athletes activate their sensors, the user initiates the data capturing process and selects the sensors to be displayed in real-time. At the end of the activity the user saves the captured data in a log file, which can then load at any time to:

Zoom in at selected time sections of the data waveforms.
Choose algorithms to calculate additional physical parameters related to the specific activity.
Create suitable forms to export graphs to other external applications, such as Microsoft Excel.

The InLOT monitoring software can run in any standard laptop or desktop PC with dual core processor under Windows XP operating environment and a minimum of 1GB RAM and 80GB HDD.

InLOT SYSTEM BUILDING BLOCKS
A full InLOT system consists of the following hardware and software components :

  1. The Monitoring Station, that is a laptop or desktop PC with the system monitoring software.

  2. The radionetwork Base Station, which connects wirelessly the monitoring station with the peripheral sensor units born by the students/athletes or the ball(s).

  3. The SenseVest, that is a shirt without sleeves worn by the student/athlete, which incorporates three(3) embedded sensors for measurement of heart rate, respiration rate and external body temperature. An additional body acceleration sensor device (BoS) is contained into a special small pocket at the lower front of the SenseVest.

  4. The Body Sensor device (BoS), that includes a 3-dimensional acceleration sensor for the movement of the student/athlete body and in conjunction with the embedded sensors in the SenseVest transmits to the Monitoring Station all student/athlete physiological data as well as his/her body acceleration values.



  5. The Arm/Leg Accelerometer (ALA), that is a 3-dimensional acceleration sensor worn on the wrist or the ankle of the monitored student/athlete with the aid of specially made straps, which provides for hand/leg acceleration values during the physical activity within a dynamic range of +/- 12g (g = nominal gravity acceleration equal to 9.8 m/sec² ).

  6. The InLOT straps, that is dedicated straps for holding the ALA devices on the wrist or the ankle of the student/athlete. The straps consist of a special fabric fastened with Velcro bands with a waterproof pocket on the upper part. They are available in two sizes, one small and one large.

  7. The Ball Accelerometer (BA), that is a 3-dimensional ball acceleration sensor, contained along with a pair of Li-Ion batteries inside a specially made plastic tube and the whole assembly fitted into a common FILA standard polo ball via a suitably cut and waterproof glued rubber tube surrounding the assembly.

 

 

 

 

 
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This project has been funded with support from the European Commission. This publication [communication] reflects the views only of the author, and the Commission cannot be held responsible for any use which may be made of the information contained therein.
 
         
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