Express highway section multi- tunnel gathering type intelligent aeration control method
A technology of expressway and control method, applied in mine/tunnel ventilation, earthwork drilling, mining equipment, etc., can solve the problems of unsatisfactory ventilation control effect, easy fluctuation of fans, shortened service life of fans, etc., to achieve ventilation control The effect is improved, the ventilation control effect is good, and the service life is improved
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[0044] Example
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[0045] Figure 1 shows that a specific implementation of the present invention is:
[0046] A multi-tunnel integrated intelligent ventilation control method for expressway sections. In each tunnel, the vehicle detector CT, smoke concentration / carbon monoxide detector VI / COT, and wind speed detector WST are used to separately measure the traffic flow, smoke and carbon monoxide in the respective tunnels. The concentration and wind speed are tested, and the data processing and control system controls the on or off state of the jet fan JF in the tunnel according to the test results.
[0047] According to the test results, the data analysis and control system controls the on-state of the jet fan JF in the tunnel as follows:
[0048] The first tunnel:
[0049] A1. Traffic flow prediction: The data processing and control system receives the traffic flow q measured by the current control cycle of the tunnel 1t , Combined with the traffic flow q of the last control cycle of the tunnel 1(t-1...
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[0080] Example two
[0081] This embodiment is basically the same as the first embodiment, except that the prediction method of the traffic flow of the third and subsequent tunnels is the same as the prediction method of the second tunnel. That is, the second, third and subsequent tunnels are calculated according to the following formula:
[0082] q m(t+1) =α m ·Q (m-1)t +β m ·Q mt +γ m ·Q m(t-1)
[0083] Where α m , Β m , Γ m Q (m-1)t , Q mt , Q m(t-1) The weighting coefficient satisfies α m +β m +γm=1. m=2, 3, 4...M, respectively representing the second, third, fourth...Mth tunnel.
[0084] That is to say, the traffic flow prediction of the third, fourth and later tunnels in this example only considers the influence of the previous tunnel, and does not consider the influence of the previous (first two) tunnels. The prediction calculation is simpler, but the accuracy is Lower.
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