A bio-inspired nonlinear algorithm to integrate carbon monoxide concentration aiming to fulfil international standards

International standards for carbon monoxide (CO) alarms in domestic premise s dictate the permissible alarm-triggering times for different CO concentra tion levels. Simple, but reliable, integration algorithms should be include d in low-cost smart alarms based on microcontrollers. Here, we present a bi o-inspired digital integrator and its performance is tested against America n and European standards. The difficulties to fulfil the later are discusse d, and some modifications of the algorithm are introduced. Finally, the adm issible concentration errors are calculated. (C) 2000 Elsevier Science S.A. All rights reserved.