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QTM1001AS Application Field and Working Principle

The QTM1001AS is a multi-function, high sensitivity, ultra-low power, quaternion-based inertial motion tracking module, embedded with a low-power gyroscope, an accelerometer, and an electronic compass. It is an ideal solution for applications that require absolute orientation and motion tracking capabilities. The QTM1001AS combines the attitude and heading reference system (AHRS) and the motion processor module (MPM) to measure acceleration, angular velocity, and magnetic field vector with high sampling frequencies and low power consumption.

Applications of QTM1001AS

The QTM1001AS is widely used in various high-end applications to measure and track motion and orientation. It is commonly used in automotive applications such as assisted parking and lane change systems. The QTM1001AS is also used in industrial applications such as robotic arms and machine vision for precision guidance and navigation. Additionally, it is used in aerospace applications such as unmanned aerial vehicles (UAV) for monitoring motion in three-dimensional space.

The QTM1001AS is also widely used in virtual reality (VR) and augmented reality (AR) applications as well as wearable devices and smart phones. In VR/AR applications, the QTM1001AS works as the orientation tracker and head tracker to track movement of the human head. It is also used in fitness trackers to measure bodily motion and posture. This makes it possible for users to track their health and fitness level in real-time. In smart phones, the QTM1001AS makes it possible for users to interact with their device by simply tilting and rotating the phone.

Working Principle of QTM1001AS

The QTM1001AS utilizes advanced motion tracking algorithms to provide accurate absolute orientation and accurate motion tracking capabilities. It uses a combination of three-axis accelerometers, three-axis gyroscopes and a three-axis magnetometer to measure acceleration, angular velocity and magnetic field vector, respectively. Additionally, a radio frequency (RF) front-end is used for communication.

The accelerometers and gyroscopes measure the acceleration and angular rate of the device in three-dimensional space, while the magnetometer measures the strength and direction of the external magnetic field. The RF front-end provides wireless communication between the module and the host device for controlling the module and transferring data.

The motion tracking algorithm of the QTM1001AS utilizes an extended unscented Kalman filter (UKF) to process the data from the three different sensors. The UKF estimates motion and attitude parameters using the sensor data from the accelerometers, gyroscopes, and magnetometer. The attitude estimation algorithm of the QTM1001AS also fuses the sensor data to provide an accurate quaternion-based output.

Conclusion

The QTM1001AS is a multi-function, high sensitivity, ultra-low power inertial motion tracking module, that is widely used in various high-end applications to measure and track motion and orientation. It uses a combination of three-axis accelerometers, three-axis gyroscopes and a three-axis magnetometer, along with an RF front-end for both communication and control. It also utilizes an extended unscented Kalman filter to process the sensor data and provide accurate quaternion-based output.

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