Smartsuit Pro II

Reference frames

Smartsuit Pro II sensor coordinate axes.

Note: the positive Y-axis points towards the cable that connects to the suit. See the image below for clarification.

Cable orientation indicating the positive Y-axis direction.

Sensor Frames

The table below lists the reference frames used in the Smartsuit Pro II data streams.

Frame Name	Description
left_hip_sensor	The frame located at the left hip sensor.
left_upper_leg_sensor	The frame located at the left upper leg sensor.
left_lower_leg_sensor	The frame located at the left lower leg sensor.
left_foot_sensor	The frame located at the left foot sensor.
left_shoulder_sensor	The frame located at the left shoulder sensor.
left_upper_arm_sensor	The frame located at the left upper arm sensor.
left_lower_arm_sensor	The frame located at the left lower arm sensor.
left_hand_sensor	The frame located at the left hand sensor.
right_hip_sensor	The frame located at the right hip sensor.
right_upper_leg_sensor	The frame located at the right upper leg sensor.
right_lower_leg_sensor	The frame located at the right lower leg sensor.
right_foot_sensor	The frame located at the right foot sensor.
right_shoulder_sensor	The frame located at the right shoulder sensor.
right_upper_arm_sensor	The frame located at the right upper arm sensor.
right_lower_arm_sensor	The frame located at the right lower arm sensor.
right_hand_sensor	The frame located at the right hand sensor.
head_sensor	The frame located at the head sensor.

Status flags

The Smartsuit Pro II data streams include status flags that indicate the tracking status of each sensor. The meaning of each flag is elaborated in the table below.

Flag Name	Description
is_magnetometer_saturated	Whether at least one axis of the magnetometer is saturated.
is_accelerometer_saturated	Whether at least one axis of the accelerometer is saturated.
is_gyroscope_saturated	Whether at least one axis of the gyroscope is saturated.
not_is_accelerometer_used	Whether the accelerometer is not being used in the sensor fusion. This will be true when the sensor is accelerating.
not_is_magnetometer_used	Whether the magnetometer is not being used in the sensor fusion. This will be true when the sensor is experiencing strong magnetic interference.