JP2000337100A - Tunnel ventilation control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To meet the contradictory requirements that safety and the environment be taken into consideration and that operating costs be reduced by preventing air containing contaminants from flowing out of the mouth of a road tunnel, while keeping the operating costs low. SOLUTION: This tunnel ventilation control device controls the ventilating power of an exhauster 9 according to a corrected wind speed measurement obtained by averaging wind speed values in different portions of a road tunnel which are output from anemometers 5 arranged within the road tunnel, and a first section wind speed control value Urmin1 [m/s] and a second section wind speed control value Urmin2 [m/s] which are adjusted according to the traffic volume of large vehicles involved in an anticipated traffic volume of the day which is obtained by statistically processing the traffic volume that is output from a traffic volume measuring apparatus 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tunnel ventilation control device for ventilating a road tunnel using a ventilator installed in the road tunnel.

[0002]

2. Description of the Related Art In a road tunnel, a visual environment is secured by maintaining the concentration of contaminants in the road tunnel below an allowable value by ventilating the inside of the road tunnel using a ventilator installed in the road tunnel. This ensures the safety and comfort of tunnel users.

[0003] In this case, various systems have been proposed as ventilation systems for road tunnels. In recent years, however, due to increasing awareness of the environment, a system called a centralized exhaust system that takes into consideration the effects on the surrounding environment is often adopted. .

In the tunnel ventilation system employing this centralized exhaust system, when the traffic direction is the facing direction, the traffic flow shown in FIG.
When the traffic direction is one-way, ventilation in a road tunnel is performed using the system shown in FIG.

[0005] At this time, a tunnel ventilation system 101 shown in FIG. 10 is provided at one of the entrances of a road tunnel 102, and a vehicle 10 that enters and exits the road tunnel 102 is provided.
Traffic meter (TC) 104 that counts the number 3
Is placed in the road tunnel 102 and the road tunnel 1
Anemometer (AV) 10 for measuring wind direction and wind speed in 02
5 and 106, and a tunnel ventilation control device 107 for controlling ventilation of the road tunnel 102.

[0006] As shown in FIG. 11, the tunnel ventilation control device 107 performs a PI control calculation based on a wind speed value of each part of the road tunnel 102 obtained by each wind direction anemometer 105 and a preset wind speed management value. Alternatively, a ventilator feedback control unit 107 that performs a fuzzy control calculation or the like to generate a ventilator ventilation command value, and a road tunnel 102
Is provided in the centralized ventilator 108 provided at the center of the road tunnel 10 with a ventilation force according to the exhaust fan ventilation command value output from the ventilator feedback control unit 107.
A blower 109 that sucks in the air inside and discharges it to the outside
And

[0007] The road tunnel 10 output from each of the anemometers 105 arranged in the road tunnel 102.
(2) Based on the wind speed value of each part and a preset wind speed management value, the ventilation force of the exhaust fan 109 is controlled so that the inside of the road tunnel 102 has a negative pressure. While guiding the air into the road tunnel 102,
Along with these air, the contaminants in the road tunnel 102 are guided into the central ventilation device 108,
After the contaminants are removed, the contaminants are discharged to the outside of the road tunnel 102 so that the contaminants do not flow out of both exits of the road tunnel 102 and the environment around the exit is not deteriorated.

Further, a tunnel ventilation control device 115 shown in FIG. 12 is provided at the entrance of a road tunnel 116, and a traffic meter (TC) 118 for counting the number of vehicles 117 entering the road tunnel 116; Tunnel 1
13, a plurality of anemometers (AV) 119 that are arranged in the vehicle tunnel 16 and measure the wind direction and the wind speed in the road tunnel 116.
As shown in the figure, the wind speed value of each part of the road tunnel 116 obtained by each wind direction anemometer 119 and the wind speed management value set in advance, for example, 1.5 [M / s]-2.0
A ventilator feedback control unit 121 that generates a ventilator ventilation command value by performing a PI control operation or a fuzzy control operation based on a wind speed management value set to a value such as [m / s]; The air in the road tunnel 116 is sucked in with the ventilation power provided in the centralized ventilator 122 provided on the exit side of the airbag 116 and according to the exhaust fan ventilation command value output from the ventilator feedback control unit 121. And an exhaust fan 123 for exhausting the air.

The road tunnel 1 output from each of the anemometers 119 disposed in the road tunnel 116
16 based on the wind speed value of each part and the preset wind speed management value, so that the pressure inside the road tunnel 116 becomes negative pressure.
By controlling the ventilation force of the exhaust fan 123, the road tunnel 116 is controlled.
After the contaminants in the road tunnel 116 are guided into the central ventilation vent 122 together with the air while the air is guided into the road tunnel 116 from both the exits, the contaminants are removed by a filter or the like. Then, the pollutants are discharged out of the road tunnel 116 to prevent the pollutant from flowing out of both the exits of the road tunnel 116 so that the environment around the exit is not deteriorated.

[0010]

However, the aforementioned conventional tunnel ventilation control devices 101 and 115 have the following problems.

That is, the road tunnel 1 of the centralized exhaust system
In 02 and 116, in order to minimize the influence on the environment around the exit, the exhaust fans 109 and 123 were positively operated.
Although it is desired to always maintain the concentrated exhaust state, such an operation increases the operation cost of the ventilation equipment.

Therefore, in order to simultaneously achieve such conflicting demands for safety and environmental considerations and for reducing operating costs, air containing pollutants in the road tunnels 102 and 116 is discharged from both exits to the outside. An operation method is adopted in which the wind speed management value is reduced as much as possible without causing a state of flowing out (called a blow-by phenomenon).

However, if the operating cost is reduced by such an operation method, when a gust or the like blows, a blow-by phenomenon occurs, and the air containing contaminants in the road tunnels 102 and 116 flows from the exit to the outside. In some cases, the wind speed management value can be reduced only to a certain extent, because it may cause the environment around the exit to deteriorate.

In particular, as shown in FIGS. 12 and 13, a road tunnel 1 provided with a centralized ventilation resistor 122 on the exit side.
In the section No. 16, in the section on the exit side (second section) of the road tunnel 116, the wind speed fluctuates greatly and the blow-by phenomenon easily occurs, so it is difficult to lower the wind speed management value.
There has been a problem that a large operating cost is required to maintain the concentrated exhaust state.

The present invention has been made in view of the above circumstances, and it is possible to prevent the air containing pollutants from flowing out of the entrance of a road tunnel to the outside while keeping the operation cost low. It is an object of the present invention to provide a tunnel ventilation control device capable of simultaneously satisfying conflicting demands of reducing operating costs and operating costs.

[0016]

SUMMARY OF THE INVENTION In order to achieve the above object, according to the present invention, a contaminated air in a tunnel is operated by operating an exhaust fan provided in a centralized ventilation device formed in a road tunnel. In the tunnel ventilation control device for discharging the outside of the road tunnel, a wind speed management value changing means for changing the wind speed management value of the road tunnel, and a wind speed measurement value output from a wind direction anemometer provided in the road tunnel, And a ventilator feedback control unit for controlling the ventilator so as not to fall below the wind speed management value obtained by the wind speed management value changing unit.

According to a second aspect of the present invention, there is provided a tunnel ventilation control device for operating a blower provided at a central ventilation port formed in a road tunnel to discharge polluted air in the tunnel to the outside of the road tunnel. A wind speed management value changing means for changing a wind speed management value based on the traffic volume output from the traffic volume measuring device, and a wind speed measurement value output from a wind direction anemometer provided in the road tunnel, wherein the wind speed management value is And a ventilator feedback control means for controlling the ventilator so as not to fall below the wind speed management value obtained by the value changing means.

According to a third aspect of the present invention, there is provided a tunnel ventilation control device for operating a blower provided in a centralized ventilation device formed in a road tunnel to discharge contaminated air in the tunnel to the outside of the road tunnel. Traffic ventilation power prediction means for generating a traffic ventilation power prediction value based on the traffic volume output from the measured traffic volume measurement device, and wind speed management based on the traffic ventilation power prediction value obtained by the traffic ventilation power prediction means. A wind speed control value changing means for changing a value, and the ventilation so that a wind speed measurement value outputted from a wind direction anemometer provided in the road tunnel does not fall below a wind speed management value obtained by the wind speed control value changing means. And a ventilator feedback control means for controlling the ventilator.

According to a fourth aspect of the present invention, there is provided a tunnel ventilation control device for operating a blower provided on a centralized ventilation device formed in a road tunnel to discharge contaminated air in the tunnel to the outside of the road tunnel. Means for generating a predicted amount of pollution based on the traffic volume output from the measured traffic volume measuring device, and wind speed management based on the predicted amount of pollution generated by the pollution volume measuring means. A wind speed management value changing means for changing a value, and a wind speed measurement value output from a wind direction anemometer provided in the road tunnel,
And a ventilator feedback control unit for controlling the ventilator so as not to fall below the wind speed management value obtained by the wind speed management value changing unit.

According to a fifth aspect of the present invention, there is provided a tunnel ventilation control device for operating a blower provided in a centralized ventilation device formed in a road tunnel to discharge contaminated air in the tunnel to the outside of the road tunnel. A traffic volume prediction means for generating a traffic volume predicted value at a certain time after the time on the day based on the traffic volume output from the measured traffic volume measuring device, and a traffic volume prediction obtained by the traffic volume prediction device. A wind speed management value changing unit that changes a wind speed management value based on the value, and a wind speed measurement value output from a wind direction anemometer provided in the road tunnel, and a wind speed management value obtained by the wind speed management value changing unit. Ventilator feedback control means for controlling the ventilator so as not to fall below.

According to a sixth aspect of the present invention, there is provided a tunnel ventilation control device for operating a blower provided at a central ventilation port formed in a road tunnel to discharge contaminated air in the tunnel to the outside of the road tunnel. A traffic volume prediction means for generating a traffic volume predicted value at a certain time after the time on the day based on the traffic volume output from the measured traffic volume measuring device, and a traffic volume prediction obtained by the traffic volume prediction device. Traffic ventilation power prediction means for generating a traffic ventilation power prediction value based on the value, wind speed management value changing means for changing the wind speed management value based on the traffic ventilation power prediction value obtained by the traffic ventilation power prediction means, A ventilator fee for controlling the ventilator such that a measured wind speed output from a wind direction anemometer provided in the road tunnel does not fall below a wind speed management value obtained by the wind speed management value changing means. It is characterized in that a back control means.

According to a seventh aspect of the present invention, there is provided a tunnel ventilation control device for operating a blower provided in a centralized ventilation device formed in a road tunnel to discharge contaminated air in the tunnel to the outside of the road tunnel. A traffic volume prediction means for generating a traffic volume predicted value at a certain time after the time on the day based on the traffic volume output from the measured traffic volume measuring device, and a traffic volume prediction obtained by the traffic volume prediction device. A pollution occurrence amount prediction means for generating a pollution occurrence amount prediction value based on the value, a wind speed management value changing means for changing a wind speed management value based on the pollution occurrence amount prediction value obtained by the contamination occurrence amount prediction means, A ventilator fee for controlling the ventilator such that a measured wind speed output from a wind direction anemometer provided in the road tunnel does not fall below a wind speed management value obtained by the wind speed management value changing means. It is characterized in that a back control means.

According to an eighth aspect of the present invention, in the tunnel ventilation control device according to any one of the fifth to seventh aspects, the traffic volume estimating means includes the past n times output from a traffic volume meter provided in the road tunnel. A traffic volume prediction value of a large vehicle and a traffic volume prediction value of a small vehicle are generated based on the traffic volume prediction pattern of the day obtained by statistically processing the traffic volume of the vehicle.

According to a ninth aspect, in the tunnel ventilation control device according to any one of the first to eighth aspects, a fast-period vibration component included in a wind speed measurement value output from a wind direction anemometer provided in the road tunnel. Wind velocity measurement value correction means for generating a corrected wind velocity measurement value by removing the wind velocity measurement value correction means, the ventilator feedback control means, the corrected wind velocity measurement value obtained by the wind velocity measurement value correction means, the wind speed management value change The ventilator is controlled so as not to fall below the wind speed control value obtained by the means.

According to a tenth aspect of the present invention, there is provided a tunnel ventilation control device for operating a blower provided at a central ventilation port formed in a road tunnel to discharge polluted air in the tunnel to the outside of the road tunnel. Wind speed measurement value correcting means for generating a corrected wind speed measurement value by removing a fast-period vibration component included in the wind speed measurement value output from the obtained wind direction anemometer, and a correction obtained by the wind speed measurement value correction means And a ventilator feedback control means for controlling the ventilator so that the measured wind speed does not fall below a preset wind speed management value.

According to the first aspect of the present invention, the wind speed management value changing means changes the wind speed management value of the road tunnel.
The ventilator feedback control means performs feedback control so that the measured wind speed does not fall below the changed wind speed management value. Thereby, by manual operation by the operator,
By setting the optimal wind speed management value according to the day of the week and time zone, the ventilation equipment facility cost and operating cost are kept low, and the air containing the pollutants does not flow out from the entrance of the road tunnel to safety. At the same time, the conflicting demands of environmental considerations and operating cost reduction are achieved.

[0027] According to the second aspect, the wind speed management value changing means outputs the data from the traffic flow meter provided in the road tunnel using a preset arithmetic expression or a conversion table created in advance. The wind speed control value of the road tunnel is changed based on the traffic volume. The ventilator feedback control means performs feedback control so that the measured wind speed does not fall below the changed wind speed management value. This keeps operating costs low and prevents air containing pollutants from escaping from the exit of road tunnels, simultaneously achieving conflicting demands for safety and environmental considerations and reducing operating costs. .

According to the third aspect, the traffic ventilation power prediction means generates the traffic ventilation power prediction value based on the traffic volume output from the traffic volume meter provided in the road tunnel. The wind speed management value changing means changes the wind speed management value based on the traffic ventilation power predicted value using a preset arithmetic expression or a conversion table created in advance. The ventilator feedback control means performs feedback control so that the measured wind speed does not fall below the changed wind speed management value. This allows predicting the traffic ventilation generated by the vehicles traveling in the road tunnel, and setting the wind speed control value higher when there are many vehicles traveling in the road tunnel, with a focus on ventilator control with an emphasis on blow-by prevention. When the number of vehicles traveling in the road tunnel is small, set the wind speed management value to a lower value,
Ventilator control with an emphasis on reducing operating costs, keeping operating costs low, preventing air containing pollutants from flowing out of the tunnel tunnel entrance, safety,
Simultaneously achieve the conflicting demands of environmental considerations and reduced operating costs.

According to the fourth aspect, the pollution generation amount predicting means generates the pollution generation amount prediction value based on the traffic volume output from the traffic volume measuring device provided in the road tunnel. The wind speed management value changing means changes the wind speed management value based on the predicted value of the amount of contamination using a preset arithmetic expression or a conversion table created in advance. The ventilator feedback control means performs feedback control so that the measured wind speed does not fall below the changed wind speed management value. As a result, the amount of pollutants emitted from vehicles traveling in the road tunnel is predicted, and when there are many vehicles traveling in the road tunnel, the wind speed control value is set higher to focus on reducing the pollution concentration. When the number of vehicles traveling in the road tunnel is small, the wind speed control value is set lower, and the ventilator control with emphasis on reducing operating costs is performed, thereby lowering operating costs. It will prevent pollutant-containing air from flowing out of the entrance of the road tunnel while controlling, and simultaneously achieve the conflicting demands of safety and environmental considerations and reduction of operating costs.

According to the fifth aspect, the traffic volume predicting means predicts the traffic volume after a certain time from the time on the day based on the traffic volume output from the traffic volume meter provided in the road tunnel. To generate traffic forecast values. The wind speed management value changing means changes the wind speed management value based on the predicted traffic volume value using a preset arithmetic expression or a conversion table created in advance. The ventilator feedback control means performs feedback control of the ventilator so that the measured wind speed does not fall below the changed wind speed management value. This keeps operating costs low while preventing air containing contaminants from escaping through the tunnel tunnels, ensuring safety,
Simultaneously achieve the conflicting demands of environmental considerations and reduced operating costs.

According to the sixth aspect, the traffic volume prediction means predicts the traffic volume after a certain time from the time on the day based on the traffic volume output from the traffic volume meter provided in the road tunnel. To generate a traffic forecast value. The traffic ventilation power prediction means generates a traffic ventilation power prediction value based on the traffic volume prediction value by using a preset arithmetic expression or a conversion table created in advance. The wind speed management value changing means changes the wind speed management value based on the traffic ventilation power predicted value using a preset arithmetic expression or a conversion table created in advance. The ventilator feedback control means performs feedback control of the ventilator so that the measured wind speed does not fall below the changed wind speed management value. This allows predicting the traffic ventilation generated by the vehicles traveling in the road tunnel, and setting the wind speed control value higher when there are many vehicles traveling in the road tunnel, with a focus on ventilator control with an emphasis on blow-by prevention. In addition, when the number of vehicles traveling in the road tunnel is small, the wind speed control value is set lower, the ventilator control with emphasis on reducing operating costs is performed, and the operating cost is kept low, To prevent air containing pollutants from leaking to the outside, and at the same time achieve the conflicting demands of safety and environmental considerations and reduction of operating costs.

According to the seventh aspect, the traffic volume estimating means predicts the traffic volume after a certain time from the time on the day based on the traffic volume output from the traffic volume meter provided in the road tunnel. To generate a traffic forecast value. The pollution occurrence amount prediction means generates a pollution occurrence amount prediction value based on the traffic amount prediction value by using a preset arithmetic expression or a conversion table created in advance. The wind speed management value changing means changes the wind speed management value based on the predicted pollution occurrence amount using a preset arithmetic expression or a conversion table created in advance. The ventilator feedback control means performs feedback control of the ventilator so that the measured wind speed does not fall below the changed wind speed management value. As a result, the amount of pollutants emitted from vehicles traveling in the road tunnel is predicted, and when there are many vehicles traveling in the road tunnel, the wind speed control value is set higher to focus on reducing the pollution concentration. When the number of vehicles traveling in the road tunnel is small, set the wind speed management value to a lower value,
Ventilator control with an emphasis on reducing operating costs, thereby keeping operating costs low and preventing air containing pollutants from flowing out from the entrance of road tunnels, giving consideration to safety, the environment, etc. And at the same time achieve the conflicting demands of reducing operating costs.

According to the eighth aspect, the traffic amount estimating means statistically processes the traffic amount of the past n times output from the traffic amount measuring device provided in the road tunnel and obtains the traffic amount of the day. Based on the traffic volume prediction pattern, a traffic volume predicted value for a large vehicle and a traffic volume predicted value for a small vehicle are generated. With this, it is possible to obtain an appropriate traffic volume prediction value according to the past usage state of the road tunnel to be controlled, thereby accurately predicting the traffic volume from the time at that time to a certain time on the day,
While keeping the operating costs low, the air containing pollutants will not escape to the outside from the entrance of the road tunnel, and at the same time, the conflicting demands of safety and environmental considerations and reducing operating costs will be achieved.

According to the ninth aspect, the wind speed measurement value correcting means removes a fast cycle vibration component included in the wind speed measurement value output from the wind direction anemometer provided in the road tunnel and corrects the corrected wind speed measurement value. Generate The ventilator feedback control means performs feedback control of the ventilator so that the corrected wind speed measurement value does not fall below the changed wind speed management value. This keeps operating costs low and prevents air containing pollutants from escaping from the exit of road tunnels, simultaneously achieving conflicting demands for safety and environmental considerations and reducing operating costs. .

According to the tenth aspect, the wind speed measurement value correction means removes a fast-period vibration component included in the wind speed measurement value output from the wind direction anemometer provided in the road tunnel and corrects the corrected wind speed measurement value. Generate The ventilator feedback control means performs feedback control of the ventilator so that the corrected wind speed measurement value obtained by the wind speed measurement value correction means does not fall below a preset wind speed management value. As a result, in a road tunnel in which the number of vehicles passing through is almost constant, it is possible to reduce the cost of ventilator equipment, to prevent inappropriate operation of the ventilator, and to keep the operating cost low. To prevent the air containing pollutants from leaking out of the doorway, and at the same time achieve the conflicting demands of safety and environmental considerations and reduction of operating costs.

[0036]

DESCRIPTION OF THE PREFERRED EMBODIMENTS << First Embodiment >> FIG. 1 is a block diagram of a tunnel ventilation system to which a tunnel ventilation control device according to the present invention is applied, and FIG. 2 is a diagram showing a tunnel ventilation control device according to the present invention. FIG. 1 is a configuration diagram illustrating one embodiment. This first embodiment corresponds to claims 5, 8, and 9.

As shown in FIG. 1, the tunnel ventilation system 1 is provided at the entrance of a road tunnel 2 and counts the number of vehicles 3 entering the road tunnel 2 by a traffic flow meter (TC) 4. A plurality of anemometers (AV) 5 arranged in the road tunnel 2 for measuring the wind direction and the wind speed in the road tunnel 2, and various parts of the road tunnel 2 arranged in a control room and obtained by each anemometer 5 Tunnel ventilation control device 7 that generates an optimal exhaust fan ventilation command value based on the wind speed value of the vehicle and the traffic volume obtained by the traffic volume measuring device 4.
(7a-7f), provided in the centralized ventilation device 8 provided on the exit side of the road tunnel 2, and provided with the tunnel ventilation control device 7
The air in the road tunnel 2 is sucked by the ventilation force according to the exhaust ventilation command value output from (7a to 7f),
And a blower 9 for discharging to the outside.

A wind speed measurement value obtained by averaging the wind speed values of the respective portions of the road tunnel 2 output from the respective wind direction and anemometers 5 arranged in the road tunnel 2 and a traffic flow meter 4
Of the first section wind speed control value U _rmin1 [m /
s] and the second section wind speed control value U _rmin2 [m / s], the ventilation force of the exhaust _fan 9 is controlled so that the inside of the road tunnel 2 becomes a negative pressure, and the two _{exits of} the road tunnel 2 are controlled. From the road tunnel 2 along with the air, the contaminants in the road tunnel 2 are led into the central ventilation 8 to remove the contaminants with a filter or the like, and then discharged out of the road tunnel 2 In this way, contaminants are prevented from flowing out of both exits of the road tunnel 2 so that the environment around the exit is not deteriorated.

Next, referring to the block diagram shown in FIG. 2, a traffic volume estimating unit 10 and a wind speed management value changing unit 11, which constitute the tunnel ventilation control device 7a according to the first embodiment of the present invention, The wind speed measurement value correction unit 12 and the ventilator feedback control unit 13 will be sequentially described in detail.

First, the traffic volume of the vehicle 3 traveling in the road tunnel 2 (the number of vehicles in each vehicle class, distinguishing between large vehicles and small vehicles) is measured by the traffic volume measuring device 4 installed near the road tunnel 2. And the vehicle speed of each vehicle 3 are measured, and the results of these measurements are calculated in the format shown below.
Supplied to

The number of large vehicles: n _L [vehicles / 5 minutes] The number of small vehicles: n _S [vehicles / 5 minutes] Vehicle speed: v [km / h] The average value is averaged in a set unit time, for example, one hour, and the following average value is obtained and stored in a hard disk device (not shown) or the like.

Number of large vehicles per unit time: N _L [vehicles / h] Number of small vehicles per unit time: N _S [vehicles / h] Vehicle speed per unit time: V [km / h] Then, in the traffic volume estimating unit 10, the average values up to the previous day stored in the hard disk device are calculated on weekdays (Tuesday to Friday), before holidays (Saturday, the day before holidays), and holidays (Sunday, holidays). , Holidays (Monday, the day after the designated holiday), and special days (New Year holidays, Bon Festival, Golden Week, etc.), and are formed into a fluctuation pattern. Next, from among the fluctuation patterns for each classification, the fluctuation patterns for the past several times corresponding to the day of the prediction day are selected, and for each of these fluctuation patterns, the Kalman filter is used to estimate the autoregressive model coefficients. You. Then, from the autoregressive model coefficients, as shown below, a traffic volume prediction value for each time zone on the prediction day is obtained, and this is calculated by the wind speed management value changing unit 11.
Supplied to

The predicted traffic value of a large vehicle: N _LP [vehicle / h] The predicted traffic value of a small vehicle: N _SP [vehicle / h] The predicted vehicle speed: V _TP [km / h] Next, the wind speed control value was changed. The unit 11 calculates the predicted traffic value N _LP [vehicle / h] of these large vehicles and the predicted traffic value N of the small vehicles.
_{Based on SP} [vehicles / h] and predicted vehicle speed V _TP [km / h],
The first section wind speed management value and the second section wind speed management value shown below are changed.

First section wind speed control value: U _rmin1 [m / s] Second section wind speed control value: U _rmin2 [m / s] At this time, a one-way road tunnel 2 as shown in FIG.
Then, of these first section and second section,
In addition to its short length, the exit side section of the road tunnel 2 (second section) where the blow-by phenomenon is likely to occur due to the fact that the wind flow during the concentrated exhaustion and the traveling direction of the vehicle 3 are reversed. An important point is the method of setting the wind speed management value (second section wind speed management value U _rmin2 [m / s]) for the section).

At this time, the second section wind speed control value U
_If a large value is set as _rmin2 [m / s], the occurrence of the blow-by phenomenon can be completely prevented, but in such an operation method, the exhaust _fan 9 is always operated at a high air volume, The operating cost increases.

Therefore, in the first embodiment, not only the number of vehicles 3 traveling in the road tunnel 2, particularly the front projected area is large, and the influence on the road wind is large, but also
Control is performed as follows based on the number of large vehicles that emit large amounts of pollutants. That is, during a time period when the traffic volume of a large vehicle is large, the second section wind speed control value U _rmin2 [m / s]
Is adjusted to a large value to prevent the occurrence of a blow-by phenomenon and to prevent changes in the wind direction and wind speed in the road tunnel 2, and the concentration of pollutants in the road tunnel 2 suddenly rises and exceeds the allowable value. 2. Prevent the spill from flowing out of the gate. Also, during times when the traffic volume of large vehicles is low,
The section wind speed management value U _rmin2 [m / s] is adjusted to a small value to suppress the operation air volume of the exhaust _fan 9 and reduce the operation cost. This satisfies the conflicting demands of securing safety, reducing the impact on the environment, and reducing operating costs, which were difficult with the conventional method.

[0047] As this method, a method for adjusting the second section wind speed control value using the arithmetic expression shown in the following equation U _{rm in2} [m / s] or large vehicle traffic volume prediction value N _LP [table, /
h] and the second section wind speed control value U _rmin2 [m / s]
Any of the methods of adjusting the second section wind speed management value U _rmin2 [m / s] with reference to the table in which the relationship is written is used. The control value _Urmin2 [m / s] is obtained, and this is supplied to the ventilator feedback control unit 13.

[0048]

U _rmin2 = α1 · N _LP + β1 (1) U _{rmin2 · min} ≦ U _rmin2 ≦ U _{rmin2 · max} (2) where α1: the road tunnel 2 set by study through simulation and local adjustment Coefficient (based on traffic volume prediction value) β1: Coefficient for the road tunnel 2 set based on simulation and local adjustment (based on traffic volume prediction value) U _{rmin2 · min} : _Commendment by simulation and site adjustment The minimum wind speed management value for the road tunnel 2 U _{rmin2 · max} : the maximum wind speed management value for the road tunnel 2 set by study through simulation and on-site adjustment In parallel with this operation, the wind speed management value changing unit 11
It is checked whether or not the predicted traffic value N _LP [vehicle / h] of the large vehicle exceeds a preset threshold value.
When the predicted traffic value N _LP [vehicle / h] of the large vehicle exceeds a preset threshold value, the first section wind speed control value _Urmin1 [m / s] is adjusted to a larger value, This is supplied to the ventilator feedback control unit 13.

In the one-way road tunnel 2 as in the first embodiment, there is a case where a sufficient wind speed can be secured in the first section due to the traffic ventilation effect of the vehicle 3 traveling in the road tunnel 2. Therefore, when simplifying the control, the first section wind speed control value U
_rmin1 [m / s] may be a constant value.

In parallel with the above-mentioned operation, the wind direction in the road tunnel 2 is set at intervals set in advance by the wind direction anemometers 5 provided in the road tunnel 2, for example, every 5 seconds.
The wind speed is measured and supplied to the wind speed measurement value correction unit 12.

Then, the wind speed measurement value correcting section 12 outputs the wind speed value (5
(An instantaneous value per second) is stored in a memory circuit (not shown), and is corrected in the following method.

First, as is clear from the chart shown in FIG. 3, the wind speed value (instantaneous value for 5 seconds) output from each anemometer 5 every 5 seconds indicates that the vehicle traveling in the road tunnel 2 Due to the effect of the air at the point where the wind direction anemometer 5 is installed due to 3 or the like, there is no relation to the change in the wind speed of the entire road tunnel 2, and the local vibration has a fast cycle of about several tens of seconds to several tens of seconds. Is included. Therefore, the wind speed value output from each anemometer 5 every 5 seconds (instantaneous value for 5 seconds)
If you use as it is, when the wind speed drops momentarily,
When the amount of exhaust air from the exhaust fan 9 increases and the wind speed increases instantaneously, the amount of exhaust air from the exhaust fan 9 decreases, and an excessive load is applied to the exhaust fan 9.

Further, in the ordinary exhaust fan 9, it takes about several minutes to switch the exhaust air volume, and it is not possible to switch the exhaust air volume in such a quick cycle of about ten to several tens of seconds. Therefore, in order to perform such a quick change, a specially designed exhaust fan must be used,
Equipment costs increase.

Therefore, in the first embodiment, the wind speed value (instantaneous value for 5 seconds) output from each anemometer 5 every 5 seconds is stored in the memory circuit while being stored in the memory circuit. Each instantaneous value is read out for 5 seconds and subjected to low-pass filtering processing or processing using an arithmetic expression shown in the following equation, and as shown in FIG. The instantaneous values for 36 seconds are averaged for 5 seconds, and the corrected wind speed measurement values obtained thereby are supplied to the ventilator feedback control unit 13.

[0055]

## EQU00002 ## Wind speed measurement value (after correction) = 5 instantaneous values for n past points / n (3) Then, the first section wind speed management value U _{rm in1} [m output from the wind speed management value changing unit 11 / S], the second section wind speed management value U _rmin2 [m / s], and the wind speed measurement value correction unit 1
2, the ventilator feedback control unit 13 performs a PI control operation, a fuzzy control operation, a neural network operation, and the like based on the corrected wind speed measurement value output from the exhaust fan ventilation control value. Is supplied to the blower 9, and the amount of blown air from the blower 9 is adjusted.

As described above, in the first embodiment, the correction obtained by averaging the wind speed values of the respective portions of the road tunnel 2 output from the respective anemometers 5 arranged in the road tunnel 2. The first section wind speed adjusted according to the already measured wind speed value and the traffic volume of large vehicles included in the predicted traffic volume of the day obtained by statistically processing the traffic volume output from the traffic volume meter 4 Based on the control value U _rmin1 [m / s] and the second section wind speed control value U _{r min2} [m / s], the ventilation force of the exhaust _fan 9 is controlled so that the inside of the road tunnel 2 has a negative pressure. Therefore, it is possible to prevent the air containing the contaminants from flowing out from the entrance of the road tunnel 2 while keeping the operating cost low, thereby giving consideration to safety and the environment, and reducing the operating cost. Conflicting demands for reduction It can be achieved at the time.

In the first embodiment, while the traffic volume output from the traffic volume meter 4 is averaged for each hour by the traffic volume prediction unit 10, each average value up to the previous day is calculated on weekdays. , Before holidays, holidays, the day after holidays, and special days, to classify the fluctuation contents, and among the fluctuation patterns for each of these classifications, Kalman filter Is used to estimate the auto-regression model coefficients, and from these auto-regression model coefficients, the traffic volume prediction value for each time zone on the day of prediction is calculated. It is possible to obtain an appropriate traffic volume prediction value according to the situation, thereby accurately predicting the traffic volume from the time of the day to a certain time and performing accurate ventilation control. .

In the first embodiment, the wind speed measurement value correction unit 12 causes the local wind speed fluctuation generated when the vehicle 3 passes near the wind direction anemometer 5 installed in the road tunnel 2. , The wind speed in the road tunnel can be accurately grasped, thereby preventing inappropriate switching of the exhaust fan 9, reducing operating costs and extending the life of the exhaust fan 9. Can be extended.

<Modification of First Embodiment (Corresponding to Claim 2)> As described above, in the first embodiment, the wind speed management value is obtained based on the predicted traffic value. When performing control based on an actual measurement value instead of a prediction value, the traffic volume prediction unit 10 shown in FIG. 2 is omitted, and the traffic volume measurement value of the traffic volume meter 4 is directly transmitted to the wind speed management value change unit 11. You may make it supply. In this case, in the above equation (1), the number of large vehicles N _L [vehicles / h] may be used instead of the predicted traffic amount N _LP [vehicles / h] of the large vehicles.

With this configuration, although a slight delay occurs in the control, the same effects as those of the first embodiment can be obtained while simplifying the apparatus.

<< Second Embodiment >> FIG. 5 is a block diagram showing a second embodiment of the tunnel ventilation control device according to the present invention. This second embodiment corresponds to claims 6, 8, and 9. In this figure, the same parts as those in FIG. 1 are denoted by the same reference numerals.

As shown in FIG. 5, the tunnel ventilation control device 7b comprises a traffic volume prediction unit 10 and a wind speed management value change unit 1
1, a traffic ventilation power prediction unit 14 is provided, which predicts the traffic ventilation power based on the traffic volume prediction value output from the traffic volume prediction unit 10 from the time of the day to T hours later. Is supplied to the wind speed management value changing unit 11 to perform the optimal ventilator control in consideration of the ventilation force (traffic ventilation force) generated by the vehicle 3 traveling in the road tunnel 2. Like that.

In this case, the traffic ventilation power prediction unit 14 performs the calculation shown in the following equation every time the traffic prediction unit 10 outputs the predicted traffic volume from the current time to the time T after the current day. After obtaining the large vehicle mixing ratio γ _L from the time at that time to T hours later on the day, the hourly traffic volume N, and the average vehicle speed predicted value V _tPS ,

Γ _L = N _LP / (N _LP + N _SP ) (4) N = N _LP + N _SP (5) V _tPS = V _TP · 1000/3600 (6) where N: time traffic [Vehicles / h] γ _L : Large vehicle mixture rate [-] N _LP : Large traffic volume predicted value [vehicle / h] N _SP : Small vehicle traffic volume predicted value [vehicle / h] V _TP : vehicle speed predicted value [km / h] V _tPS: average speed predicted value [m / s] by performing the calculation shown in the following equation, and the number tunnel endogenous wheel n, obtains a passing vehicle equivalent resistance area a _m.

[0064]

Equation 4] _{a m = A L · γ L} + A S · (1-γ L) ... (7) n = {(N / 3600) · L} / V tPS ... (8) where, n: Tunnel inherent Car number [units] N: time traffic [units / h] γ _L: large vehicle mixing ratio [-] a _m: passing vehicle equivalent resistance area [m ^2] A _L: large car equivalent resistance area [m ^2] A _S : Small vehicle equivalent resistance area [m ² ] V _tPS : Average vehicle speed predicted value [m / s] After that, the calculation shown in the following equation is performed, and the traffic ventilation predicted value Δ
_Pt is obtained and supplied to the wind speed management value changing unit 11.
When performing the calculation shown in the following equation, the wind speed U _{r in} the roadway is used.
For example, an appropriate value such as “0 [m / s]” is set.

[0065]

Equation 5] _{ΔP t = (1 / A r} ) · (ρ / 2) · a m · n · (V tPS -U r) 2 ... (9) where, [rho: air density [kg / m ^3] n : tunnel endogenous car number [units] a _m: passing vehicle equivalent resistance area [m ^2] U _r: roadway in wind speed [m / s] A _r: roadway cross-sectional area [m ^2] [Delta] P _t: Transport ventilation force (predicted value ) [Pa] V _tPS: average speed predicted value [m / s] Then, the wind speed control value changing section 11, based on traffic ventilation force predicted value [Delta] P _t which is output from the traffic ventilation force prediction unit 14, the following (10 ) And (11) are calculated to obtain a second section wind speed management value U _rmin2 [m / s] from the current time to the elapse of the T time, and supply this to the ventilator feedback control unit 13.

[0066]

[6] _{U rmin2 = α2 · ΔP t +} β2 ... (10) U rmin2 · min ≦ U rmin2 ≦ U rmin2 · max ... (11) However, [alpha] 2: Simulation study, the set by local adjustment road tunnels 2 (Based on predicted traffic ventilation) β2: Coefficient for road tunnel 2 (based on predicted traffic ventilation) set by simulation and site adjustment _{Urmin2 · min} : Based on predicted traffic ventilation Examination by simulation, minimum wind speed control value for the road tunnel 2 set by ground adjustment U _{rmin2 · max} : Examination by simulation based on predicted traffic ventilation power, maximum wind speed management value for the road tunnel 2 set by site adjustment Thus, in the second embodiment, the vehicle 3 traveling in the road tunnel 2 Predicting a generated traffic ventilation force, when the road tunnels 2 vehicle 3 often traveling, is set to enhance the second section wind speed control value U _Rmin2, performs ventilator control focused on blow prevention, also When the number of vehicles 3 traveling in the road tunnel 2 is small, the second section wind speed management value U _rmin2 is set to a low value to perform the ventilator control with an emphasis on reduction of the operation cost. It is possible to prevent the air containing the pollutants from flowing out from the entrance of the road tunnel 2 while controlling, and at the same time, achieve the conflicting demands of consideration for safety and environment, and reduction of operating cost. it can.

In the second embodiment, as in the first embodiment, the traffic output from the traffic meter 4 is averaged by the traffic estimation unit 10 in one-hour units. Meanwhile, the average value up to the previous day is calculated on weekdays, before holidays, on holidays,
By classifying the fluctuation details by classifying on the dawn of holidays and on special days, the Kalman filter is used to auto-regress the fluctuation patterns of the past several times corresponding to the day of the forecast day out of the fluctuation patterns for each classification. Since the model coefficients are estimated and the traffic volume prediction value for each time zone on the prediction day is obtained from the autoregression model coefficients, an appropriate value according to the past usage of the road tunnel 2 to be controlled is obtained. It is possible to obtain a traffic volume prediction value, whereby it is possible to accurately predict the traffic volume from the current time on that day to a certain time and perform accurate ventilation control.

In the second embodiment, similarly to the first embodiment, the measured wind speed correction unit 12
The local wind speed fluctuation generated when the vehicle 3 passes near the anemometer 5 installed in the road tunnel 2 can be removed, and the wind speed in the road tunnel 2 can be accurately grasped. It is possible to prevent inappropriate switching of the blower 9 and reduce operating costs,
The life of the blower 9 can be extended.

<Modification of Second Embodiment (Corresponding to Claim 3)> As described above, in the second embodiment, the traffic ventilation power prediction unit 14 uses the traffic volume generated by the traffic volume prediction unit 10. The predicted value of the traffic ventilation force is obtained based on the predicted value, and the wind speed management value changing unit 11 changes the wind speed management value based on the predicted value of the traffic ventilation force. May be omitted, the traffic volume measurement value of the traffic volume meter 4 may be directly supplied to the traffic ventilation power prediction unit 14, and the wind speed management value may be changed by the traffic ventilation power prediction value based on the traffic volume measurement value. good. In this case, in the calculation of the equations (4) and (5), the large traffic forecast value N _LP [veh / h] and the small traffic forecast value N _SP [veh / h] Car traffic measurement value N _L [vehicles / h], small car traffic volume measurement value N _S [vehicle / h
h] may be used.

With this configuration, the same effect as in the second embodiment can be obtained.

<< Third Embodiment >> FIG. 6 is a block diagram showing a third embodiment of the tunnel ventilation control device according to the present invention. This third embodiment corresponds to claims 7, 8, and 9. In this figure, the same parts as those in FIG. 1 are denoted by the same reference numerals.

As shown in FIG. 6, the tunnel ventilation control device 7c includes a traffic volume prediction unit 10 and a wind speed management value change unit 1
1, a pollution generation amount prediction unit 15 is provided, and based on a traffic volume prediction value output from the traffic volume prediction unit 10 from the current time to T hours later, the amount of generated smoke and the amount of generated carbon monoxide are calculated. The amount of contamination, such as the amount, is predicted, and the resulting predicted value of the amount of contamination is supplied to the wind speed control value changing unit 11,
Optimum ventilator control taking into account the concentration of pollutants emitted from the vehicle 3 traveling in the road tunnel 2 is performed.

In this case, the pollution occurrence amount prediction unit 15 performs the calculation shown in the following equation every time the traffic prediction unit 10 outputs the traffic amount prediction value from the current time to the time T later. A predicted value μ of the amount of pollutant generated during the time T from the current time on the day is calculated, and the calculated value μ is used as the wind speed control value changing unit
Feed to 1.

[0074]

Μ = μ _L · (L / 1000) · N _LP + μ _S · (L / 1000) · N _SP ... (12) However, L: entire length of the road tunnels 2 [m] μ _L: pollutant emissions average for heavy vehicles as specified in the tunnel ventilation reference [m ³ / km / pedestal] mu _S: Tunnel ventilation standard in defined pollutant emissions average for small cars are [m ³ / miles / pedestal] N _LP: large vehicle traffic volume prediction value [units / h] N _SP: traffic volume prediction value of small car [units / h] Then, the wind speed management value changing unit 11 calculates the following Expressions (13) and (14) based on the pollutant generation amount predicted value μ output from the contamination generation amount prediction unit 15, and calculates T from the present time. The second section wind speed management value U _rmin2 [m / s] until the time elapses is determined and supplied to the ventilator feedback control unit 13.

[0075]

U _rmin2 = α3 · μ + β3 (13) U _{rmin2 · min} ≦ U _rmin2 ≦ U _{rmin2 · max} (14) where α3 is a coefficient for the road tunnel 2 set by study through simulation and field adjustment. (Based on the predicted value of polluted compartments) β3: Study by simulation, the coefficient for the road tunnel 2 set by field adjustment (based on the predicted value of polluted compartments) _{Urmin2 · min} : Examination by simulation, by field adjustment The minimum wind speed control value U _{rmin2 · max} for the road tunnel 2 set: the maximum wind speed control value for the road tunnel 2 set by study through simulation and site adjustment As described above, in the third embodiment, the road Amount of pollutants emitted from vehicles 3 traveling in tunnel 2 (amount of pollutants generated) Predicted to, when many vehicles 3 traveling the road tunnel 2, a second section wind speed control value U
_rmin2 is set to a higher value to perform ventilator control with an emphasis on reducing the pollution concentration, and when the number of vehicles 3 traveling in the road tunnel 2 is small, the second section wind speed control value U _rmin2
Is set to a low value to control the ventilator with an emphasis on reducing operating costs, so that air containing contaminants leaks out of the entrance of the road tunnel 2 while keeping operating costs low. Not to be safe,
It is possible to simultaneously achieve conflicting demands for environmental considerations and operating cost reduction.

In the third embodiment, as in the first embodiment, the traffic volume prediction unit 10 averages the traffic volume output from the traffic volume meter 4 on an hourly basis. Meanwhile, the average value up to the previous day is calculated on weekdays, before holidays, on holidays,
By classifying the fluctuation details by classifying on the dawn of holidays and on special days, the Kalman filter is used to auto-regress the fluctuation patterns of the past several times corresponding to the day of the forecast day out of the fluctuation patterns for each classification. Since the model coefficients are estimated and the traffic volume prediction value for each time zone on the prediction day is obtained from the autoregression model coefficients, an appropriate value according to the past usage of the road tunnel 2 to be controlled is obtained. It is possible to obtain a traffic volume prediction value, whereby it is possible to accurately predict the traffic volume from the current time on that day to a certain time and perform accurate ventilation control.

Further, in the third embodiment, similarly to the first embodiment, the wind speed measurement value correction unit 12
The local wind speed fluctuation generated when the vehicle 3 passes near the anemometer 5 installed in the road tunnel 2 can be removed, and the wind speed in the road tunnel 2 can be accurately grasped. It is possible to prevent inappropriate switching of the blower 9 and reduce operating costs,
The life of the blower 9 can be extended.

<Modification of Third Embodiment (corresponding to Claim 4)> As described above, in the third embodiment, the pollution occurrence amount prediction unit 15 uses the traffic volume generated by the traffic volume prediction unit 10. A predicted pollution generation amount is calculated based on the predicted value, and the wind speed management value changing unit 11 changes the wind speed management value based on the predicted pollutant generation amount. 1
Omitting 0, the traffic volume measurement value of the traffic volume measuring device 4 is directly supplied to the pollution generation amount prediction unit 15, and the wind speed management value is changed by the pollution generation amount prediction value based on the traffic volume measurement value. Is also good. In this case, in the calculation of the predicted pollutant emission amount μ in the above equation (12), the predicted traffic value N _LP [vehicle / h] for a large vehicle and the predicted traffic value N _SP [veh / h] for a small vehicle are used. Te, traffic volume measurement value of large vehicles N _L [stand / h], may be used small car of the traffic volume measurement value N _S [stand / h].

With this configuration, the same effect as in the third embodiment can be obtained.

<< Fourth Embodiment >> FIG. 7 is a block diagram showing a fourth embodiment of the tunnel ventilation control device according to the present invention. The fourth embodiment corresponds to claim 10.

As shown in FIG. 7, in the tunnel ventilation control device 7d, the wind speed measurement value correction unit 12 includes the wind speed measurement value obtained by the wind direction anemometer 5 while the wind speed management value is fixed. The vibration of the early cycle is removed to prevent inappropriate operation of the ventilator 9 and reduce the operating cost.

As described above, in the fourth embodiment, while the wind speed management value is kept constant, the wind speed measurement value correction unit 12 uses the fast cycle of the wind speed measurement value output from each wind direction anemometer 5. Since the vibration is removed and the ventilator feedback control unit 13 controls the ventilator 9, the cost of the ventilator equipment is reduced in the road tunnel 2 in which the number of passing vehicles 3 is almost constant. It is possible to prevent the air containing the contaminants from flowing out of the entrance of the road tunnel 2 to the outside while suppressing the operation of the ventilator 9 at a low level and preventing the inappropriate operation of the ventilator 9 and the operating cost. As a result, safety and environmental considerations and conflicting demands for reducing operating costs can be achieved at the same time.

Further, in the fourth embodiment, similarly to the first embodiment, the wind speed measurement value correction unit 12
The local wind speed fluctuation generated when the vehicle 3 passes near the anemometer 5 installed in the road tunnel 2 can be removed, and the wind speed in the road tunnel 2 can be accurately grasped. Inappropriate switching of the blower 9 can be prevented, the operating cost can be reduced, and the life of the blower 9 can be extended.

<< Fifth Embodiment >> FIG. 8 is a configuration diagram showing a fifth embodiment of the tunnel ventilation control device according to the present invention. The fifth embodiment corresponds to claim 1.

As shown in FIG. 8, the tunnel ventilation control device 7e is provided with a wind speed management value changing unit 16 for changing the wind speed management value by manual operation. And optimize the wind speed control value for each time zone, thereby simplifying the system,
The ventilator feedback control unit 13 controls the ventilator 9 based on the optimal wind speed management value according to the day of the week and time zone while keeping the construction cost of the ventilation equipment low.

As described above, in the fifth embodiment, the wind speed management value can be switched by the manual operation of the operator. Therefore, the optimum operation according to the day of the week and the time zone can be performed by the manual operation of the operator. It is possible to set a wind speed control value, thereby keeping ventilator equipment costs and operation costs low, and preventing air containing pollutants from flowing out of the entrance of the road tunnel 2 to the outside, thereby ensuring safety. It is possible to simultaneously achieve the conflicting demands of consideration on the characteristics, environment, etc. and reduction of operating costs.

<< Sixth Embodiment >> FIG. 9 is a block diagram showing a sixth embodiment of the tunnel ventilation control device according to the present invention. This sixth embodiment corresponds to claims 1 and 9.

As shown in FIG. 9, this tunnel ventilation control device 7f is provided with a wind speed management value changing unit 16 for changing the wind speed management value by manual operation, and the operator operates the wind speed management value changing unit 16 to operate the wind speed management value changing unit 16. The wind speed control value is optimized for each day of the week and time zone, thereby simplifying the system and keeping the construction cost of ventilation equipment low, while providing the feedback of the ventilator based on the optimum wind speed control value for the day and time zone. The control unit 13 controls the ventilator 9.

As described above, in the sixth embodiment,
The wind speed management value is switched by a manual operation by an operator, and the wind speed measurement value correction unit 12 removes the fast-period vibration included in the wind speed measurement value output from each wind direction anemometer 5, and performs the ventilator feedback control. Part 13
In addition, since the ventilator 9 is controlled, the optimal wind speed management value according to the day of the week and the time zone is set by a manual operation by the operator, and the ventilator equipment cost can be kept low. In this way, it is possible to prevent improper operation of the vehicle, reduce the operating cost, and prevent the air containing pollutants from leaking out of the exit of the road tunnel 2, thereby giving consideration to safety and the environment. And the conflicting demands of reducing operating costs can be achieved at the same time.

Further, in the sixth embodiment, similarly to the first embodiment, the wind speed measurement value correction unit 12
Local wind speed fluctuations that occur when the vehicle 3 passes near the anemometer 5 installed in the road tunnel 2 can be removed, and the wind speed in the road tunnel can be accurately grasped. Inappropriate switching of the blower 9 can be prevented, the operating cost can be reduced, and the life of the blower 9 can be extended.

<< Other Embodiments >> In each of the above-described embodiments, the tunnel ventilation control device according to the present invention is described using the one-way road tunnel 2 as an example. The tunnel ventilation control device according to the present invention may be applied to a road tunnel.

[0092]

As described above, according to the present invention, according to the first aspect, it is possible to set the optimum wind speed management value according to the day of the week and the time zone by the manual operation by the operator, and the ventilator equipment cost is reduced. , While keeping operating costs low, preventing air containing pollutants from leaking out of the tunnel tunnel, taking safety and environmental considerations into consideration,
The conflicting demands of reducing operating costs can be achieved at the same time.

According to the second and fifth aspects, it is possible to prevent the air containing the pollutant from flowing out from the entrance of the road tunnel while keeping the operation cost low, thereby giving consideration to safety and the environment. And the conflicting demands of reducing operating costs can be achieved at the same time.

According to the third and sixth aspects, the traffic ventilation force generated by the vehicles traveling in the road tunnel is predicted, and when there are many vehicles traveling in the road tunnel, the wind speed control value is set higher to prevent blow-through. When the number of vehicles traveling in the road tunnel is small, the wind speed control value can be set lower, and the ventilator control with the emphasis on reducing operating costs can be performed. Air containing contaminants can be prevented from escaping outside from the entrance of road tunnels while keeping operating costs low, and at the same time conflicting demands for safety and environmental considerations and operating cost reduction are achieved. can do.

According to the fourth and seventh aspects, the amount of pollutants emitted from vehicles traveling in the road tunnel is predicted,
When the number of vehicles traveling on the road tunnel is large, the wind speed control value is set to a higher value to perform ventilation control with an emphasis on reducing the pollution concentration. It can be set lower to provide ventilation control with an emphasis on reducing operating costs, thereby keeping operating costs low and preventing air containing pollutants from escaping from the exit of road tunnels. This makes it possible to simultaneously achieve the conflicting demands of safety and environmental considerations and reduction of operating costs.

According to the eighth aspect, it is possible to obtain an appropriate traffic volume prediction value according to the past use situation of the road tunnel to be controlled, and thereby to accurately calculate the traffic volume from the current time to the predetermined time on the day. As a result, it is possible to keep operating costs low and prevent air containing pollutants from escaping from the exit of road tunnels. Requirements can be achieved at the same time.

According to the ninth aspect, a corrected wind speed measurement value is generated by removing a fast cycle vibration component included in the wind speed measurement value output from the wind direction anemometer, and the corrected wind speed measurement value and the wind speed management value are obtained. By controlling the ventilator based on the system, it is possible to keep the operating cost low and prevent the air containing the pollutants from flowing out from the entrance of the road tunnel to the outside. In addition, conflicting demands for reducing operating costs can be achieved at the same time.

According to the tenth aspect, in a road tunnel in which the number of vehicles passing therethrough is substantially constant, inappropriate operation of the ventilator is prevented while keeping the cost of the ventilator equipment low.
While keeping operating costs low, it is possible to prevent air containing pollutants from leaking out of the entrance of road tunnels, thereby contradicting safety and environmental considerations and reducing operating costs. Can be achieved simultaneously.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a tunnel ventilation system to which a tunnel ventilation control device according to the present invention is applied.

FIG. 2 is a configuration diagram showing a first embodiment of a tunnel ventilation control device according to the present invention.

FIG. 3 is a chart showing an example of a measured wind speed output from the anemometer shown in FIG. 1;

FIG. 4 is a chart showing an example of a measured wind speed output from a measured wind speed correction unit shown in FIG. 2;

FIG. 5 is a configuration diagram showing a second embodiment of the tunnel ventilation control device according to the present invention.

FIG. 6 is a configuration diagram showing a third embodiment of the tunnel ventilation control device according to the present invention.

FIG. 7 is a configuration diagram showing a fourth embodiment of the tunnel ventilation control device according to the present invention.

FIG. 8 is a configuration diagram showing a fifth embodiment of the tunnel ventilation control device according to the present invention.

FIG. 9 is a configuration diagram showing a sixth embodiment of the tunnel ventilation control device according to the present invention.

FIG. 10 is a block diagram showing a configuration of a tunnel ventilation system for a road tunnel of a two-way traffic system.

11 is a block diagram showing a conventional example of a tunnel ventilation control device applied to the tunnel ventilation system shown in FIG.

FIG. 12 is a block diagram showing a configuration of a tunnel ventilation system for a one-way road tunnel.

13 is a block diagram showing a conventional example of a tunnel ventilation control device applied to the tunnel ventilation system shown in FIG.

[Explanation of symbols]

1: Tunnel ventilation control system 2: Road tunnel 3: Vehicle 4: Traffic meter 5: Wind direction anemometer 7, 7a, 7b, 7c, 7d, 7e, 7f: Ventilation control device 8: Centralized ventilation 9: Exhaust fan 10: Traffic volume prediction unit 11: Wind speed management value change unit 12: Wind speed measurement value correction unit 13: Ventilator feedback control unit 14: Traffic ventilation power prediction unit 15: Pollution generation amount prediction unit 16: Wind speed management value change unit

Claims (10)

[Claims] 1. A tunnel ventilation control device for operating an exhaust fan provided on a centralized ventilation device formed in a road tunnel to discharge contaminated air in the tunnel to the outside of the road tunnel. Wind speed management value changing means to be changed, and the ventilator so that the wind speed measurement value output from the wind direction anemometer provided in the road tunnel does not fall below the wind speed management value obtained by the wind speed management value changing means. And a ventilator feedback control means for controlling. 2. A tunnel ventilation control device for operating an exhaust fan provided at a central ventilation outlet formed in a road tunnel to discharge polluted air in the tunnel to the outside of the road tunnel. A wind speed management value changing unit that changes a wind speed management value based on the traffic volume output from the traffic volume measuring device; and a wind speed measurement value output from a wind direction anemometer provided in the road tunnel, the wind speed management value changing unit. And a ventilator feedback control means for controlling the ventilator so as not to fall below the wind speed management value obtained in (1). 3. A tunnel ventilation control device for operating a blower provided on a centralized ventilation device formed in a road tunnel to discharge contaminated air in the tunnel to the outside of the road tunnel. Traffic ventilation power prediction means for generating a traffic ventilation power prediction value based on the traffic volume output from the traffic volume meter, and changing the wind speed management value based on the traffic ventilation power prediction value obtained by the traffic ventilation power prediction means Wind speed control value changing means, and controlling the ventilator so that the wind speed measurement value output from the wind direction anemometer provided in the road tunnel does not fall below the wind speed control value obtained by the wind speed control value changing means. And a ventilator feedback control means. 4. A tunnel ventilation control device for operating a blower provided on a centralized ventilation device formed in a road tunnel to discharge polluted air in the tunnel to the outside of the road tunnel, wherein the traffic provided in the road tunnel is provided. Pollution generation amount prediction means for generating a pollution generation amount prediction value based on the traffic volume output from the traffic measurement device, and a wind speed management value is changed based on the pollution generation amount prediction value obtained by the pollution generation amount measuring means. Wind speed control value changing means, and controlling the ventilator so that the wind speed measurement value output from the wind direction anemometer provided in the road tunnel does not fall below the wind speed control value obtained by the wind speed control value changing means. And a ventilator feedback control means. 5. A tunnel ventilation control device for operating an exhaust fan provided at a centralized ventilation device formed in a road tunnel to discharge contaminated air in the tunnel to the outside of the road tunnel. A traffic volume predicting means for generating a traffic volume predicted value at a certain time after the time on the day based on the traffic volume output from the traffic volume measuring device; and a traffic volume predicted value obtained by the traffic volume predicted means. A wind speed management value changing unit for changing the wind speed management value by means of a wind speed measurement value output from the wind direction anemometer provided in the road tunnel so that the wind speed management value obtained by the wind speed management value changing unit does not fall below the wind speed management value. And a ventilator feedback control means for controlling the ventilator. 6. A tunnel ventilation control device for operating an exhaust fan provided on a centralized ventilation device formed in a road tunnel to discharge contaminated air in the tunnel to the outside of the road tunnel, wherein the traffic provided in the road tunnel is provided. A traffic volume predicting means for generating a traffic volume predicted value at a certain time after the time on the day based on the traffic volume output from the traffic volume measuring device; and a traffic volume predicted value obtained by the traffic volume predicted means. Traffic ventilation power prediction means for generating a traffic ventilation power prediction value, and a wind speed management value changing means for changing a wind speed management value based on the traffic ventilation power prediction value obtained by the traffic ventilation power prediction means; A ventilator feedback system that controls the ventilator so that the measured wind speed output from the wind direction anemometer provided in the vehicle does not fall below the wind speed management value obtained by the wind speed management value changing means. Tunnel ventilation control apparatus comprising: the means. 7. A tunnel ventilation control device for operating an exhaust fan provided at a central ventilation outlet formed in a road tunnel to discharge contaminated air in the tunnel to the outside of the road tunnel, wherein the traffic provided in the road tunnel is provided. A traffic volume predicting means for generating a traffic volume predicted value at a certain time after the time on the day based on the traffic volume output from the traffic volume measuring device; and a traffic volume predicted value obtained by the traffic volume predicted means. A pollution generation amount predicting means for generating a pollution generation amount prediction value, a wind speed management value changing means for changing a wind speed management value based on the pollution generation amount prediction value obtained by the pollution generation amount prediction means, A ventilator feedback system for controlling the ventilator so that the measured wind speed output from the wind direction anemometer provided in the wind turbine does not fall below the wind speed management value obtained by the wind speed management value changing means. Tunnel ventilation control apparatus comprising: the means. 8. The tunnel ventilation control device according to claim 5, wherein the traffic amount predicting means outputs the past n times of traffic volume output from a traffic volume meter provided in the road tunnel. A traffic flow prediction value for a large vehicle and a traffic prediction value for a small vehicle based on the traffic volume prediction pattern of the day obtained by statistically processing the traffic flow pattern. 9. The tunnel ventilation control device according to claim 1, wherein a fast-period vibration component included in a wind speed measurement value output from a wind direction anemometer provided in the road tunnel is removed. Wind speed measurement value correction means for generating a corrected wind speed measurement value, wherein the ventilator feedback control means obtains the corrected wind speed measurement value obtained by the wind speed measurement value correction means by the wind speed management value changing means. Controlling the ventilator so as not to fall below the set wind speed management value. 10. A tunnel ventilation control device for operating an exhaust fan provided at a central ventilation outlet formed in a road tunnel to discharge polluted air in the tunnel to the outside of the road tunnel, wherein a wind direction provided in the road tunnel is provided. Wind speed measurement value correction means for generating a corrected wind speed measurement value by removing a fast-period vibration component included in the wind speed measurement value output from the anemometer, and a corrected wind speed measurement obtained by the wind speed measurement value correction means And a ventilator feedback control means for controlling the ventilator so that the value does not fall below a preset wind speed management value.