| | BioRowTel®
data acquisition system
The system, which can measure everything in rowing!
Compare to other telemetry systems, our BioRowTel system is not "turn key”
product and require qualified personnel (usually with sport-science
qualification) and some learning curve of calibration and data processing.
In return, BioRowTel is the most flexible, accurate, can measure more
variables in as a standard (e.g. vertical oar angle, segments velocities) and
opened to any new transducers. It allows to collect data through up to 128
channels at 25, 50 and 100Hz with 14 bit resolution.
BioRowTel is an ideal solution for elite rowers in National teams and
researchers in universities.
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Standard
components of BioRowTel system
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The main
electronic unit Master contains:
the main
processor, 2 Gb memory (enough for more than 100 hours), 5 Hz GPS receiver,
3D accelerometer and 2D gyro, RS232 output, radio modem, Li-Ion battery and
12 external input channels
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Up to 8 additional
Slave units can be connected to the Master in a chain. Each Slave unit
contains:
processor,
analogue input for 8 or 16 channels, two impulse inputs (heart rate or
impeller), RS485 connection tot the Master, RS232 output, "traffic
lights" immediate feedback.
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Two-dimensional
(2D) oar angle sensor measures position of the oar shaft in horizontal and
vertical planes. This allows to define the track of the blade relative to
water level and hence catch and release slips and effective angles.
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The force sensor
measures the force applied to the oar handle by means of detection of the
shaft flex. Unique calibration method takes less than a minute to calibrate
each oar. This allows very accurate calculation of rowing power, which does
not affected by the point of force application on the handle. The sensor is
small, light and can be used on both sculling and sweep oars.
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Position sensors
of the seat and shoulders allow to derive their velocities and power input
into total rowing power, which makes it possible to define rowing style and
conduct in-depth analysis of the technique.
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Wind speed and
direction sensor measures effect of wind on the boat speed in a real time.
This allows to determine prognostic boat speed for a calm conditions and
accurately compare performance of the crew(s) in a various weather
conditions.
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Software package
implements a unique averaging algorithms, which allow unambiguous analysis of
massive rowing data, easy comparison of various samples (rowers in the boat,
various stroke rates, previous and current data). It provides a feedback as a
report or data replay combined with a video. Specific rowing video analysis
is also included.
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