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STMicroelectronics Reveals Motion Sensor with Machine Learning for High-Accuracy, Battery-Friendly Activity Tracking
- Machine-learning technology classifies movement data to improve activity tracking
- Embedded intelligence and additional enhancements greatly reduce power for longer battery runtime in smartphones, wearables, and game controllers
The LSM6DSOX iNEMO(TM) sensor contains a machine-learning core to classify motion data based on known patterns. Relieving this first stage of activity tracking from the main processor saves energy and accelerates motion-based apps such as fitness logging, wellness monitoring, personal navigation, and fall detection.
"Machine learning is already used for fast and efficient pattern recognition in social media, financial modelling, or autonomous driving," said Andrea Onetti, Analog,
Devices equipped with ST's LSM6DSOX can deliver a convenient and responsive "always-on" user experience without trading battery runtime. The sensor also has more internal memory than conventional sensors, and a state-of-the-art high-speed I3C digital interface, allowing longer periods between interactions with the main controller and shorter connection times for extra energy savings.
The sensor is easy to integrate with popular mobile platforms such as Android and iOS, simplifying use in smart devices for consumer, medical, and industrial markets.
The LSM6DSOX is in full production and available now, priced from
Further technical information:
The LSM6DSOX contains a 3D MEMS accelerometer and 3D MEMS gyroscope, and tracks complex movements using the machine-learning core at low typical current consumption of just 0.55mA to minimize load on the battery.
The machine-learning core works in conjunction with the sensor's integrated finite-state machine logic to handle motion pattern recognition or vibration detection. Customers creating activity-tracking products with the LSM6DSOX can train the core for decision-tree based classification using Weka, an open-source PC-based application, to generate settings and limits from sample data such as acceleration, speed, and magnetic angle that characterize the types of movements to be detected.
Support for free-fall, wakeup, 6D/4D orientation, click and double-click interrupts allows a wide variety of applications such as user-interface management and laptop protection in addition to activity tracking. Auxiliary outputs and configuration options also simplify use in optical image stabilization (OIS).
ST is a global semiconductor leader delivering intelligent and energy-efficient products and solutions that power the electronics at the heart of everyday life. ST's products are found everywhere today, and together with our customers, we are enabling smarter driving and smarter factories, cities and homes, along with the next generation of mobile and Internet of Things devices.
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Source: STMicroelectronics N.V.