3 April 2008 Hybrid control and acquisition system for remote control systems for environmental monitoring
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Abstract
In this paper we describe the architecture and the performances of a hybrid modular acquisition and control system prototype for environmental monitoring and geophysics. The system, an alternative to a VME-UDP/IP based system, is based on a dual-channel 18-bit low noise ADC and a 16-bit DAC module at 1 MHz. The module can be configured as stand-alone or mounted on a motherboard as mezzanine. Both the modules and the motherboard can send/receive the configuration and the acquired/correction data for control through a standard EPP parallel port to a standard PC for the real-time computation. The tests have demonstrated that a distributed control systems based on this architecture exhibits a delay time of less than 25 us on a single channel, i.e a sustained sampling frequency of more than 40 kHz (and up to 80 kHz). The system is now under extensive test in the remote controls of seismic sensors (to simulate a geophysics networks of sensors) of a large baseline suspended Michelson interferometer.
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Fabio Garufi, Fabio Garufi, Fausto Acernese, Fausto Acernese, Alfonso Boiano, Alfonso Boiano, Rosario De Rosa, Rosario De Rosa, Rocco Romano, Rocco Romano, Fabrizio Barone, Fabrizio Barone, } "Hybrid control and acquisition system for remote control systems for environmental monitoring", Proc. SPIE 6926, Modeling, Signal Processing, and Control for Smart Structures 2008, 692615 (3 April 2008); doi: 10.1117/12.772198; https://doi.org/10.1117/12.772198
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