Zephyr BioHarness - 4. Data Descriptions; 4.1. Transmitted Data

BioHarness Bluetooth Developer Kit User Manual
Page 26
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This document has been prepared by Zephyr Technology Ltd and is not to be distributed, copied or reproduced without permission.
9700.0026 © Zephyr Technology 2010 2010-06-02
4. Data Descriptions
4.1. Transmitted Data
Data output from the device is described fully in the BioHarness Bluetooth Comms Link
Specification [1]. Data output is in the form of a number of messages, each of which can be
enabled or disabled. Details on how to do this are included in the above document.
Parameter Reporting
Frequency
(Hz)
Range Units Description
General Data Packet
Heart Rate 1 0 – 240 BPM Beats per Minute
Breathing Rate 1 0 – 70 BPM Breaths per Minute
Skin Temperature 1 0 – 60 °C
Posture 1 ±180 Degrees Vertical = 0°
Activity Level 1 ±3.3 VMU (g)
Peak Acceleration 1 ±3.3 g
Battery Voltage 1 3.5 – 4.2 V
Breathing Wave
Amplitude
1 V Indicative only
ECG Amplitude 1 V Indicative only
ECG Noise 1 V Indicative only
X Acceleration Min 1 ±3.3 g Vertical axis
X Acceleration Peak 1 ±3.3 g
Y Acceleration Min 1 ±3.3 g Lateral axis
Y Acceleration Peak 1 ±3.3 g
Z Acceleration Min 1 ±3.3 g Sagittal axis
Z Acceleration Peak 1 ±3.3 g
ROG Status 1 R,O,G See section 5
Strap Worn Status 1 0,1 0 = not worn.
Device Button pressed
status
1 0,1 0 = not pressed
Battery Percentage of
Full Charge
1 0 – 100 % % of full capacity
Breathing Dat
a Packet
Breathing sensor output 18 0 – 4095 bits Does not indicate
breathing depth
ECG Packet
ECG Sensor output 250 0 – 1024 bits For debugging purposes
only
Heart Rate R
-
R Packet
HR RR value 18 Minimum
250
ms Alternating ± sign at new
detection
Accelerometer Data packet
X axis acceleration 50 ±3.3 g
Y axis acceleration 50 ±3.3 g
Z axis acceleration 50 ±3.3 g
All data packets are time-stamped in milliseconds