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Sewn-in, multi-sensor motion co-processor for precise, real-time body motion reconstruction

STMicroelectronics has released a smart suit prototype with sewn-in, multi-sensor iNEMO motion co-processor that recognises complex movements of the wearer’s body and translates them to a digital model with high precision and speed. The iBMR (iNEMO body motion reconstruction technology) can ensure good outcomes in clinical and sports medicine applications, as well as augmented reality, says the company. The current-generation prototype of the company’s body-motion reconstruction suit demonstrates the optimal performance of the miniaturised multi-sensor nodes attached on each arm, forearm, thigh, calf, and two on the back; additional nodes can be mounted on hands, on shoes or on the head, says the company. The integration of motion and magnetic MEMS sensors with a 32bit STM32 microcontroller and dedicated software in one miniaturised solderable module of 13x13x2mm, make the motion co-processor suitable for effortless orientation estimation embedded applications. Using the company’s data fusion software, each smart sensor node represents one of the small attitude and heading reference system modules.All nodes send their data to the control unit, which applies the measurements to a graphical skeleton model and displays body movements in real time, claims the company. The company’s body-motion reconstruction suit ensures deviation in spatial accuracy below 0.5° during movements and requires less than 15ms to process and apply the sensor data to the skeleton model, says the company.