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TI mmWave Labs
Vital Signs Measurement

Contents
• Overview
• Requirements
• Software setup
– Pre-requisites
– Downloading the Lab Project
– Building the project
• Hardware setup
– Preparing the EVM
– Connecting the EVM
• Running the Lab
– Loading Program
– Running the GUI
2

Lab Overview
3
• This lab exercise demonstrates the ability of TI IWR 14xx mmWave sensor to measure chest
displacements due to breathing and heart beat
• Typical vital signs parameters for adults
Vital Signs Amplitude Frequency
Breathing Rate (Adults) 1- 12 mm 0.1 – 0.5 Hz
Heart Rate (Adults) 0.1 – 0.5 mm
0.8 – 2 Hz
• To measure these small scale vibrations/displacements, we measure the change in phase of the
FMCW signal with time at the target range bin
4
b
R
- corresponds to the change in phase when the target moves a distance R
- Note that a smaller wavelength will give better displacement sensitivity
b
• Code Composer Studio (CCS) project along with source code is provided for this lab

Lab Overview
• TI mmWave sensor measures the chest displacement when it is pointed towards the chest of a person
sitting in front of the sensor
• The onboard programmable processing cores on the TI IWR 14xx mmWave sensor are used to filter out
the breathing and heart beat pattern from chest displacements and estimate the Breathing and Heart-rate
• GUI displays the chest displacements, filtered waveforms and the estimated Breathing and Heart-rate
4
EVM at same
level as chest
GUI
Chest area
clear of objects
Note: Although not an absolute requirement, a lens in
front of the sensor will improve the performance

1. Requirements
• Software
– Pre-requisites
• Latest TI mmWave SDK and all related dependencies
installed as mentioned in the mmWave SDK release
notes.
– Vital Signs Lab CCS Project
• Download from TI Resource Explorer
– UniFlash
• For flashing firmware images onto
• Download from TI.com/tool/uniflash
– XDS110 Drivers
• For EVM XDS device support
• Included with CCS Installation, or standalone through
TI XDS Emulation Software
– MATLAB runtime R2016b (9.1)
• For running the Vital Signs Lab GUI
• Download from MATLAB website
• Hardware
– AWR14xx/IWR14xx EVM
– Micro USB cable (included in the EVM package)
– 5V/5A Power Supply
• Purchase from Digikey
– A lens/concentrator to direct the radar waves
towards the chest
5
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