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boyle / 2018-measure-stress

Using machine learning to investigate sympathetic activation of the autonomic nervous system (SAANS) during the treatment of mild traumatic brain injury, chronic pain, and post-traumatic stress disorder.
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Clocks calibration #1

Closed fcharih closed 5 years ago

fcharih commented 6 years ago

Problem: Inevitably, the event timestamps will have some offset with respect to the physiological measurements. These two types of data (measurements and events) will need to be aligned.

I am assuming that there will be two devices:

  1. The tablet
  2. A desktop computer to which the sensors are connected

Potential solutions: Simplest Have the person holding the tablet and the person at the computer press a button simultaneously at the beginning of the session. The timestamps can be used to compute offsets.

fcharih commented 6 years ago

Discussed with Jim and Al, and this may not be a huge concern, as long as the clocks are within seconds of each other (computer/tablet).

fcharih commented 5 years ago

Could likely be done via Bluetooth with a small Java program on the computer.