A Proposed Application for Controlling Overweight and Obesity within the Framework of the Internet of Things

Table 1

Specific sensors that present important data.

Sensor type	Description of sensor values
TYPE_ACCELEROMETER; TYPE_GRAVITY; TYPE_GYROSCOPE; TYPE_LINEAR_ACCELERATION	(i) Measures the force of acceleration; (ii) Uses three axes (x, y, and z); (iii) Unit of measurement: m/s^2
TYPE_AMBIENT_TEMPERATURE; TYPE_TEMPERATURE	(i) Measures the room temperature; (ii) Unit of measurement: °C
TYPE_LIGHT	(i) Measures the brightness of the space; (ii) Unit of measurement: lx
TYPE_MAGNETIC_FIELD	(i) Measures the magnetic field of space; (ii) Uses three axes (x, y, and z); (iii) Unit of measurement: μT
TYPE_ORIENTATION; TYPE_ROTATION_VECTOR	(i) Measures the degree of rotation of the device through all three axes (x, y, and z)
TYPE_PRESSURE	(i) Measures the air pressure of the room; (ii) Unit of measurement: hPa or mbar
TYPE_PROXIMITY	(i) Measures the proximity of an object depending on the screen of the device; (ii) Unit of measurement: cm
TYPE_RELATIVE_HUMIDITY	(i) Measures air humidity; (ii) Measuring unit: %