The Concept of the Remote Devices Content Management
Table 1
Android sensors [18] for smart and ambient environments—overview.
Type
Functionality
Accelerometer
Sensor calculate acceleration without gravity acceleration m/s2 as following equitation: The reason is user centric-suspected behaviour for an end-user where device in a stable position placed on the table should have acceleration 0 instead of +9.81
Ambient temperature
Ambient (room) temperature in degree Celsius
Gravity
A three-dimensional vector indicating the direction and magnitude of gravity. Units are m/s2. The coordinate system is the same as is used by the acceleration sensor
Gyroscope
Values are in radians/second and measure the rate of rotation around the device's local -, -, and -axis
Light
Ambient light level in SI lux units
Linear acceleration
A three-dimensional vector indicating acceleration along each device axis, not including gravity. All values have units of m/s2. The coordinate system is the same as is used by the acceleration sensor The output of the accelerometer, gravity and linear-acceleration sensors must obey the following relation: acceleration = gravity + linear-acceleration
Magnetic field
Values are in micro-Tesla (uT) and measure the ambient magnetic field in the -, -, and -axis
Orientation
All values are angles in degrees
Pressure
Atmospheric pressure in hPa (millibar)
Proximity
Proximity sensor distance measured in centimeters
Relative humidity
Relative ambient air humidity in percent
Rotation vector
The rotation vector represents the orientation of the device as a combination of an angle and an axis, in which the device has rotated through an angle around an axis