 DSP solutions from third parties SASL adds V.34 data modem to software line Postal sorting application uses LSI Linescan Module Active noise control silences aircraft cabins IAT bases high-definition video on 'C80 Aircraft starter/generator control uses Pentek boards Open DSP telephony platform arrives Affordable computer telephony for small businesses Portescap provides DSP motion control solution Wavetek using Virtuoso Micro with 'C44 Image processor delivers radar transmission to the PC Wavetek using Virtuoso Micro with 'C44 Image processor delivers radar transmission to the PC
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DSPs monitor human physiology in space
To develop a new method for monitoring human reaction to near-infrared (NIR) radiation in space, Systemtechnik Schwerin (STS) turned to Orth System (ORSYS) and TMS320C32 DSPs from TI. The goal of the cooperative project with AGNID (Investigator Group/Cologne) is to develop a new method to investigate human physiology for MIR '97, the German-Russian manned mission. Sponsored by DARA, the German Space Agency, the project includes a variety of biomedical experiments, important among them is the measurement of NIR light remission. The non- invasive NIR-diagnostic device from STS investigates the peripheral microcirculation dynamics of the skin and the relative blood volume flow, pulse frequency and other peripheral cardiovascular parameters. By using the ORSYS micro-line™ 'C32 CPU-module, STS was able to develop a powerful space physiology device within a short time. Two NIR sensor heads, including three signals (two wavelength-selective photodetector channels and one temperature) and two free inputs for additional parameters, are multiplexed and sampled at 500 Hz. The input data are digitally filtered and distributed to 20 logical channels. The DSP manages commands from the host system, such as setting currents for the NIR LED, and computes the medical values like spectrum, quotient and deviation from the pulse signals to determine microcirculation dynamics. The results are transmitted to a host system where they can be stored and visualized on-line. The DSP allows development of a stand-alone device, which must be minimized in volume, energy and weight for space application, at the same time that it is performing intense signal processing. The 'C3x family provides the environment for hardware and software development with powerful software libraries and micro-line modules that make it simple to modify the device for clinical usage. The system shows how innovative ideas can be changed easily into marketable products. |