| 摘要 |
PURPOSE:To keep the pollution concentration at the preset value or below by calculating the calibrated value of the pollution material occurrence quantity based on the measured value of the pollution concentration and the added value of the ventilation quantity in a fixed period and the traffic in a fixed period and correcting the preset value with arithmetic means. CONSTITUTION:An arithmetic unit 1 adds the product of the traffic of large and small vehicles and preset values alpham and betam in a fixed period and predicts the pollution material quantity in a tunnel and calculates the pollution concentration. An arithmetic unit 3 is operated based on the pollution concentration and controls the ventilation quantity by feed-forward control according to the predicted pollution material quantity based on the control signal of a controller 6. An arithmetic unit 8 calculates the pollution material quantity in a fixed period based on the pollution measured signal inputted from a VI meter or the like and outputs it to an arithmetic unit 9. A counting unit 7 outputs the traffic in a fixed period to the arithmetic unit 9. The arithmetic unit 9 calculates the actual unit occurrence quantities alpha and beta of large and small vehicles as calibration values and outputs them to the arithmetic unit 1 to correct the preset values alpham and betam. |
