VENTILATION AUTOMATIC CONTROL DEVICE FOR ROAD TUNNEL

摘要

PROBLEM TO BE SOLVED: To efficiently perform a stabilization control by determining necessary ventilating quantity by fuzzy inference from the necessary ventilating quantities determined by feedforward method by required ventilating quantity and by feedback method by exhaust gas transmittance. ;SOLUTION: The vehicle number N and vehicle speed V are determined from a traffic volume meter 4 and a speed meter 5, a required ventilating quantity I1 is calculated by a required ventilating quantity arithmetic part 6, and a required wind speed I2 is calculated by an arithmetic part 7. In a calculation part 9, a traffic ventilating force I3 is calculated from the traffic volume N, the vehicle speed V and the wind speed WS from an anemometer 8. In an arithmetic part 10, the operating numbers of ventilators is determined from these values, ventilating resistance, and resistant natural wind, and a necessary ventilating quantity I4 is calculated by feedforward method. On the other hand, an exhaust gas transmittance VI is read from an exhaust gas transmissometer 1 and averaged, and a necessary ventilating quantity I5 is calculated by feedback method in a ventilator number calculating part 12. The necessary ventilating quantities I4 and I5 are mutually compared to calculate the integrated ventilating quantity.;COPYRIGHT: (C)1999,JPO