Table 13.
The comparison of multi-sensor approaches on a fusion platform.
| Fusion Platform | AutoSense | PACT | PACT v2 |
|---|---|---|---|
| Sensing element employed in smoking research |
RIP sensing, 6-axis IMU (other sensors not utilized yet in smoking research) |
RIP, Proximity | RIP, Bioimpedance sensor, ECG, 6-axis IMU and Instrument lighter (other sensors not utilized yet in smoking research) |
| Sampling Frequency | 21.3 Hz for RIP, 16 Hz for Inertial Sensor |
100 Hz | 100 Hz for IMU, RIP, Proximity; 1 KHz for Physiological sensor |
| Device Storage | N/A | Portable Datalogger (Logomatic V2, Sparkfun Electronics, Boulder, CO) | On Board 4-GB Micro SD card |
| Sensor data Transmission Method | To smartphone via ANT Radio. | N/A | N/A |
| Data analysis/processing method | Published | Published | Published |
| Clinical or Validation Survey | Performed over more than 100 subjects in different studies | Performed over 20 regular smokers. | Performed over 40 regular smokers. |
| Tested in Free-living | Tested over 61 regular smokers in different studies | Not tested | Tested over 40 regular smokers. |
| Gold Standard Comparison | Manual annotation by an observer. | Push Button based manual annotation | Manual Video Annotation and cellphone registration |
| System longevity (Battery Life) | More than a day | More than a day | More than a day |