In a blog post a few years ago, we published results of our experiments with direct integration of linear acceleration from our LPMS-B IMU. At that time, although we were able to process data in close to real-time, displacement tracking only worked on one axis and for very regular up-and-down motions.
In the meantime the measurement quality of our IMUs has improved and we have put further work into researching dead reckoning applications. Fact is that still, low-cost MEMS as they are used in our LPMS-B2 devices are not suitable to perform displacement measurement for extended periods of time or with great accuracy. But, for some applications such as sports motion measurement or as one component in a larger sensor fusion setup, the results are very promising.
A further experiment shows this algorithm applied to the evaluation of boxing motions. This system might work as a base component for IoT boxing gloves that allow automatic evaluation of an athletes technique and strength, or it might ne integrated into an advanced controller for virtual reality sports.
As usual, please contact us for further information.
Introducing IMUcore
IMUcore customizable sensor fusion solution is the central algorithm working inside all LP-RESEARCH IMUs. It collects orientation data from several sources and combines them into fast and drift-free tilt and direction information. To work with any type of MEMS sensor, various online and offline calibration methods have been implemented to guarantee high quality data output. The algorithm is very versatile and performance-saving. It can be implemented on embedded MCUs with minimum power consumption.
IMUcore is now available as a solution from LP-RESEARCH. Please contact us here for more information or a price quotation.
Sensor Fusion Filter Overview
The IMUcore customizable sensor fusion solution uses gyroscope data as basis information to calculate orientation. Errors introduced through measurement noise are corrected by accelerometer and compass data. Optionally the sensor fusion can be extended with an optical (or other) tracking system to additionally provide position information. You can see some examples of the application of IMUcore in our sensor devices here.
If this topic sounds familiar to you and you are looking for a solution to a related problem, contact us for further discussion.
We are proud to present our new partner company Xikaku. Xikaku is a US company located in Los Angeles, focusing on the development of technology related to the field of augmented reality (AR). Visit their website here.
