The final BMR algorithm deviation is within range of 10% compared to reference CWT (using stop watch), the algorithm performance fulfills the potential clinical rehabilitation quality assessment requirement.
The BMR algorithm reaches comparable performance range as initial benchmark device ActivPAL3, which is mounted at a much better position for steps detection. (ActivPaL3: UpperLeg, BMR: Belt at the Hip)
MicRoberts’ MiniMod has problem while detecting extreme slow walking speed (down to 1.4 km/h = 0.4 m/s), because of worse mounting position compared to ActivPAL3.
BMR system has online processing algorithm (fixed point computation) while MiniMod system uses offline processing mode.
The main error source is from test persons’ transition pattern and mis-classification into locomotion class in standing and sitting cases.