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SENSOR_CATEGORY_MOTION

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The SENSOR_CATEGORY_MOTION category contains sensors that provide information that is related to physical movement. Accelerometers measure acceleration of the sensor, including gravitational acceleration. Motion detectors, such as human movement detection in a security system, sense moving objects. Gyrometers sense changes in angular velocity. Speedometers measure velocity.

Platform-defined Sensor Types

This category includes the following platform-defined sensor types.

Sensor type Meaning
SENSOR_TYPE_ACCELEROMETER_1D One-axis accelerometers.
SENSOR_TYPE_ACCELEROMETER_2D Two-axis accelerometers.
SENSOR_TYPE_ACCELEROMETER_3D Three-axis accelerometers.
SENSOR_TYPE_GYROMETER_1D One-axis gyrometers.
SENSOR_TYPE_GYROMETER_2D Two-axis gyrometers.
SENSOR_TYPE_GYROMETER_3D Three-axis gyrometers.
SENSOR_TYPE_MOTION_DETECTOR Motion detectors, such as those used in security systems.
SENSOR_TYPE_SPEEDOMETER Rate-of-motion sensors.

Platform-defined Data Fields

This category includes the following platform-defined data fields.

Data type Type Meaning
SENSOR_DATA_TYPE_ACCELERATION_X_G VT_R8 X-axis acceleration, in gs.
SENSOR_DATA_TYPE_ACCELERATION_Y_G VT_R8 Y-axis acceleration, in gs.
SENSOR_DATA_TYPE_ACCELERATION_Z_G VT_R8 Z-axis acceleration, in gs.
SENSOR_DATA_TYPE_ANGULAR_ACCELERATION_X_DEGREES_PER_SECOND VT_R8 Gyrometric x-axis acceleration, in degrees per second. squared.
SENSOR_DATA_TYPE_ANGULAR_ACCELERATION_Y_DEGREES_PER_SECOND VT_R8 Gyrometric y-axis acceleration, in degrees per second squared.
SENSOR_DATA_TYPE_ANGULAR_ACCELERATION_Z_DEGREES_PER_SECOND VT_R8 Gyrometric z-axis acceleration, in degrees per second squared.
SENSOR_DATA_TYPE_ANGULAR_VELOCITY_X_DEGREES_PER_SECOND VT_R8 Gyrometric x-axis velocity, in degrees per second.
SENSOR_DATA_TYPE_ANGULAR_VELOCITY_Y_DEGREES_PER_SECOND VT_R8 Gyrometric y-axis velocity, in degrees per second.
SENSOR_DATA_TYPE_ANGULAR_VELOCITY_Z_DEGREES_PER_SECOND VT_R8 Gyrometric z-axis velocity, in degrees per second.
SENSOR_DATA_TYPE_MOTION_STATE VT_BOOL VARIANT_TRUE if motion is detected, otherwise VARIANT_FALSE.
SENSOR_DATA_TYPE_SPEED_METERS_PER_SECOND VT_R8 Speed in meters per second.

Important

Each platform-defined motion data type PROPERTYKEY is based on a common GUID that is named SENSOR_DATA_TYPE_MOTION_GUID. As it is a reserved base value, do not use this GUID to define your own property keys.

Requirements

   
Minimum supported client Windows 7
Minimum supported server None supported
Header sensors.h