mmWave Radar Sensor Data Collection Session 1 (session aborted)

1. Overview

Project Name: mmWave Radar Sensor

Data Collection Session: 1st Session

Date: Mon 27 Jan

Location: Queen’s Building 1.15

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2. Purpose and Scope

This session aims to collect radar data of participants performing three distinct activities (standing, sitting, lying down) for 3 minutes each, to support the development and validation of posture recognition algorithms using mmWave radar.

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3. Setup

• Sensor Information:
  • mmWave Sensor Model: IWRL6432
  • Sensor Orientation and Position: Rotated 90deg (see below pic) for the measurements to get the maximum benefit for the height measurements from the antenna.

  Notes:

  • x and z are swapped, and new x measurement removed since on this radar board they will be 0 for now. So you will only see posy, posz, vely, velz, accy, accz in the CSV file.

  • The python parser will print the current height (posz) and range (posy) of the tracked person’s median so that you get an idea of what is being recorded.

• Height of radar board (above ground): 150 cm

• Distance from Participant: 270 cm

• Data Storage & File Naming Convention:
  • Radar Data: results_[Activity]_[Name]_[Time].csv

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4. Participant Details

Participant	Height (Range)
Ed	6ft
Emmanuel	5ft 8in
Faik	5ft 8in
Eddie	6ft

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5. Activity Log

Record each activity with precise start/end times, duration, and file names. Each activity should last approximately 3 minutes.

Participant ID	Activity	Start Time	End Time	Duration (mins)	Radar File Name	Notes
Ed	Standing	15:38	15:40	2	P001_Standing_XXXX.bin	e.g., Facing sensor directly
Ed	Sitting	HH:MM	HH:MM	2	P001_Sitting_XXXX.bin	e.g., Sitting on a standard office chair
Ed	Lying Down	HH:MM	HH:MM	5	P001_Lying_XXXX.bin	e.g., Lying on back on a flat surface
Emmanuel	Standing	HH:MM	HH:MM	5	P002_Standing_XXXX.bin
Emmanuel	Sitting	HH:MM	HH:MM	5	P002_Sitting_XXXX.bin
Emmanuel	Lying Down	HH:MM	HH:MM	5	P002_Lying_XXXX.bin

^^^ INCOMPLETE AND ABORTED

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6. Procedure

1. Preparation:
   • Ensure the environment is free of unnecessary movement, noise, and obstacles.
   • Verify mmWave radar sensor calibration (if applicable).
   • Confirm camera setup (focus, angle, and lighting).
2. Data Collection:
   • Each participant performs the following activities for 3 minutes each: Standing, Sitting, Lying Down.
   • Record radar data and video simultaneously.
   • Save data files with the appropriate naming convention.
3. Post-Collection Tasks:
   • Immediately back up recorded data to a secure location.
   • Perform a quick quality check (e.g., confirm file sizes, watch sample video segments, review radar logs).
   • Document any deviations from the planned procedure.

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7. Observations & Deviations

Use this section to note anything unusual or noteworthy during data collection:

• Sensor Issues: (e.g., unexpected noise, data dropouts, error messages)
• Participant Behavior: (e.g., slight movement, fidgeting, posture adjustments)
• Environmental Factors: (e.g., changes in lighting or temperature, background noise)
• Protocol Deviations: (e.g., shorter/longer recording due to interruptions, sensor malfunction, etc.)

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8. Data Quality Check

• Initial Observations: (Any obvious anomalies in radar or video data?)
• Action Items:
  • Verify all files are labeled correctly and consistently.
  • Confirm each activity was recorded for the full duration.
  • Ensure all data is securely stored (local and/or cloud).

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9. Next Steps

Outline subsequent actions or follow-up tasks:

• Data Preprocessing: (e.g., synchronization of radar and video timestamps, noise filtering)
• Analysis Plan: (e.g., feature extraction, machine learning model training)
• Further Data Collection: (e.g., additional participants, different environments, extended tasks)