Wireless DSP architecture for biosignals recording

The paper describes a ARM-based Bluetooth wireless system for biosignal recording and monitoring. The architecture is composed of two functional blocks: an ECG pre-processing board to acquire differential signals and a 8-channel DSP system. The acquisition, the digital processing and the transmission control are performed by an ARM7 chip. The transmission is carried out using a Bluetooth chip interfaced to a computer or a PDA. This device addresses the new concepts of ubiquitous sensing and computing applied to health care: in particular it was validated in a wearable and environmental ECG setup. With these devices new frontiers of applications in ambient intelligence and home care are going to be explored to expand the diffusion of a similar approach on ARM-based products.