rörelsedata

Rörelsedata, literally motion data in Swedish, refers to time-series measurements that describe the movement of people, animals, or objects. It is collected by sensors such as inertial measurement units (accelerometers, gyroscopes, magnetometers), Global Positioning System receivers, radiolocation, or computer vision systems, and is typically stored as timestamped samples.

Data are commonly structured as sequences with fields for time, linear acceleration, angular velocity, orientation, and, when available, position or velocity. Orientation is often represented as quaternions or Euler angles. Sensor fusion techniques combine inputs from multiple sources to estimate state variables such as trajectory, pose, and speed. Noise, bias, and drift are key challenges, requiring calibration, filtering (for example Kalman or complementary filters), and drift correction.

Rörelsedata supports a wide range of applications. In sports science and biomechanics, it enables gait analysis and performance monitoring. In healthcare and rehabilitation, it supports activity recognition and monitoring of movement disorders. In robotics and automation, it provides state estimation and path planning. In human-computer interaction and mobile devices, it enables activity detection and contextual sensing. In animation and graphics, motion capture data translates real-world movement into digital models.

Privacy and ethical considerations apply, especially where location and identifiable movement patterns are involved. Anonymization and consent are important. Data formats often include CSV, JSON, or HDF5, and may be accompanied by metadata describing sampling rate, device, and calibration.