Occupancy Detection for PSMs

breath_availability(x)

Implements the breathing availbaility indicator from Long-Term Sleep Assessment by Unobtrusive Pressure Sensor Arrays - 2018, Soleimani.

Expects an array with dimensions n_mats x 8 x samples. Returns the maximum distance between mattress sensors and the mode of those distances.

occupancy_detection(x::AbstractVector; kwargs)

Implements signle sensor simple occupancy detection from Long-Term Sleep Assessment by Unobtrusive Pressure Sensor Arrays - 2018, Soleimani.

Arguments

• β=350 : Average value of a sensor from an empty bed.
• m=300 : Minimum number of samples to be declared an occupancy.
• n=4 : Sensitivity parameter

occupancy_detection(x::AbstractMatrix; kwargs)

Implements simple occupancy detection from Long-Term Sleep Assessment by Unobtrusive Pressure Sensor Arrays - 2018, Soleimani.

Arguments

• max_dist=false : Use breathing availability signal from the maximum distance method.
• β=25000 : Average value of the sum of all sensors from an empty bed.
• m=300 : Minimum number of samples to be declared an occupancy.
• n=4 : Sensitivity parameter