SensoriaDataModel.swift

Purpose

SensoriaDataModel.swift defines the structure of a single data packet received from Sensoria wearable sensors. These data packets contain pressure sensor values and 9-axis IMU readings for each timestamped frame.

Struct: SensorData

struct SensorData {
    var s0: Int16
    var s1: Int16
    var s2: Int16
    var accX: Float
    var accY: Float
    var accZ: Float
    var magX: Float
    var magY: Float
    var magZ: Float
    var gyroX: Float
    var gyroY: Float
    var gyroZ: Float
    var timestamp: Int
    var footIndicator: String
}

Field Breakdown

  • s0, s1, s2: Raw pressure sensor readings from the wearable insole or sock.

  • accX, accY, accZ: 3D acceleration vector values (from IMU).

  • magX, magY, magZ: Magnetometer readings (for orientation and heading).

  • gyroX, gyroY, gyroZ: Gyroscope data (angular velocity around each axis).

  • timestamp: Millisecond-based time at which the sample was captured.

  • footIndicator: Custom label indicating whether the reading is from the left or right foot (e.g., "Left", "Right").

Usage

This structure is used by:

  • SensoriaHandler.swift for parsing Bluetooth packets.

  • File-writing components for exporting logs.

  • Visualization tools for foot pressure and gait analysis.