JP4456037B2 - Tunnel drainage monitoring and control method and tunnel drainage monitoring and control system - Google Patents

Description

  The present invention relates to a monitoring control technique for a drainage facility provided as an incidental facility in a tunnel.

  In many cases, tunnels are provided with drainage facilities to prevent flooding during rain. Such tunnel drainage equipment generally includes a drainage tank for storing drainage, a drainage pump installed in the drainage tank, and a pump control panel for controlling the drainage pump.

  Conventionally, for such a tunnel drainage facility, as a basic control, the drainage pump is automatically operated / stopped based on the operation water level and the stop water level preset in the pump control panel. In other words, when the water level in the drainage tank rises due to rain or the like and reaches the operating water level, the drainage pump is automatically operated to drain water from the drainage tank. The control is to automatically stop the pump. In addition to these basic controls, tunnel drainage equipment also controls tunnel drainage equipment monitoring and control systems as necessary (this includes control of various tunnel equipment such as ventilation equipment, lighting equipment, and disaster prevention equipment in addition to drainage equipment). Remote control by a tunnel remote monitoring and control system that remotely controls a plurality of tunnels from a remote location is also received. That is, the drainage tank water level information and drainage pump operation / stop information are sent from the pump control panel to the tunnel drainage facility monitoring and control system. Then, the system operator arbitrarily displays the information on the display unit of the system to grasp the status of the tunnel drainage facility, and manually operates and stops the drainage pump if necessary.

  Here, as a technique related to the monitoring and control of drainage due to rainfall or the like, a “rainwater pump well target water level control method” disclosed in Patent Document 1 and a “rainwater pump control device” disclosed in Patent Document 2 are known. ing.

JP 7-18720 A JP 2000-265531 A

  As described above, the conventional tunnel drainage equipment is based on the fixed control based on the preset operation water level and stop water level in the pump control panel, and this is supplemented by manual control from the tunnel drainage equipment monitoring control system. It had been. And the complementary control by the manual operation was performed especially when it is predicted that there is a possibility that the drainage tank may overflow due to heavy rain in the fixed control. In other words, if heavy rain is expected that may overflow the drainage tank, the drainage pump is operated in advance by manual operation from the tunnel drainage facility monitoring and control system to lower the drainage tank level to an appropriate level. It is control to cope with heavy rain.

  In recent years, the number of underpass-type tunnels where the road surface inside the tunnel is lower than the road surface outside the tunnel and where rainwater tends to collect has been increasing, especially in urban areas, while sudden heavy rains are more likely to occur in urban areas. There is also. For this reason, the case where drainage control for dealing with heavy rain is required is increasing. Under such circumstances, there are some problems in dealing with heavy rain by manual complementary control from the tunnel drainage equipment monitoring and control system as described above.

  One of them is that the manual operation from the tunnel drainage facility monitoring and control system results in excessive or insufficient prior water level setting. That is, there is a time delay in the water level information provided from the tunnel drainage facility to the tunnel drainage facility monitoring and control system, resulting in excessively lowering the water level or insufficient lowering of the water level. If the water level is lowered excessively, the pump control panel will put the drainage pump in a start-up locked state. And if the drainage pump is locked, the drainage will not be performed even if the water level in the drainage tank rises, or the drainage pump cannot be activated by remote control from the tunnel drainage facility monitoring and control system. It will be necessary to take measures such as going to the site and releasing the activation lock state. On the other hand, if there is a lack of water level reduction, there is a high possibility that the tunnel will be flooded.

  Another problem is that manual operation from the tunnel drainage monitoring and control system results in wasteful operation of the drainage pump, leading to a mischievous increase in power costs, and premature drainage of the drainage pump. It is a problem that invites.

  The present invention has been made against the background of the above circumstances, and from the drainage tank while keeping the operation of the drainage pump to the minimum necessary even for sudden torrential rains that are likely to occur in recent years. The purpose of the present invention is to provide a tunnel drainage equipment monitoring and control method capable of reliably performing necessary drainage and a tunnel drainage equipment monitoring and control system used for its execution.

For the above purpose, in the present invention, a tunnel drainage facility monitoring and control system includes a drainage tank for storing drainage, a drainage pump installed in the drainage tank, and a drainage facility of a tunnel provided with a pump control panel for controlling the drainage pump. In the tunnel drainage equipment monitoring and control method for remotely monitoring and controlling by the above, in the tunnel drainage equipment monitoring and control system, the water level setting means is provided, and the operation water level that is the water level of the drainage tank that causes the drainage pump to start operation is set to the water level. The setting means sets the pump control panel in the pump control panel at a predetermined time period, and the set operation water level set by the water level setting means is automatically determined based on the predicted precipitation amount .

  Further, in the present invention, for the tunnel drainage facility monitoring control method as described above, the set operation water level determined based on the predicted precipitation amount is automatically determined based on the actual inflow amount of drainage into the drainage tank at the time of determination. Change to

  Further, in the present invention, in the tunnel drainage facility monitoring control method as described above, when the set operation water level is changed based on the actual inflow amount, the set operation water level is changed with reference to a past operation water level setting pattern.

In the present invention, for the above purpose, a drainage tank for storing drainage, a drainage pump installed in the drainage tank, and a drainage facility of a tunnel provided with a pump control panel for controlling the drainage pump are remotely monitored. in tunnel drainage monitoring and control system for controlling, Rutotomoni includes a water level setting means for setting a predetermined time period the operation water is the water level of the drain tank to start operation to the drainage pump to the pump control panel, the The water level setting means tabulates and maintains the relationship between the predicted precipitation and the predicted inflow of drainage to the drainage tank, and the table of the relationship between the predicted inflow to the drainage tank and the operating water level. Operation water for calculating a set operation water level from the set water level table to be held and the predicted inflow table and the set water level table from the input forecast precipitation It is characterized in that it comprises a calculation unit.

  Further, in the present invention, in the tunnel drainage equipment monitoring control system as described above, the water level setting means uses the set operation water level determined based on the predicted precipitation amount, and the actual inflow amount of drainage into the drainage tank at the time of determination. The operation water level changing unit that automatically changes based on the above is further provided.

  In the present invention, in the above-described tunnel drainage facility monitoring control system, the water level setting means further includes a set water level history database that records a history of water level setting in the past of drainage facilities to be monitored and controlled, and the actual inflow amount The set operating water level is changed with reference to the past operating water level setting pattern obtained from the set water level history database when the set operating water level is changed based on the above.

  In the present invention, the operation water level is set at a predetermined time period by the water level setting means from the tunnel drainage equipment monitoring control system. For this reason, according to the present invention, it is possible to reliably perform necessary drainage from the drainage tank while suppressing the operation of the drainage pump to the minimum necessary even for sudden torrential rains that are likely to occur in recent years. It becomes. Moreover, in one aspect of the present invention, the set operation water level based on the predicted precipitation is automatically changed according to the actual rainfall state. For this reason, it becomes possible to control the drainage facilities in accordance with the actual rainfall conditions, and further, by providing learning by using the past operation water level setting pattern in the operation water level change process, the characteristics of individual tunnels can be specified. Accordingly, it is possible to perform more efficient control while avoiding wasteful operation of the drainage pump.

  Hereinafter, modes for carrying out the present invention will be described. FIG. 1 shows a configuration of a tunnel drainage facility monitoring control system in one embodiment. The tunnel drainage facility monitoring and control system of this embodiment can collectively monitor and control the drainage facilities 1-TN1, 1-TN2,... 1-TNn in each of a plurality of tunnels TN (TN1, TN2,... TNn). A monitoring device 2, a forecast precipitation input unit 3, and a graph display unit 4 are provided.

  The drainage facility 1 includes a drainage tank 5 for storing drainage, and a plurality of drainage pumps P installed in the drainage tank 5 (in the example of the figure, two drainage pumps P1, P2), a water level meter 6 installed in the drain tank 5, a pump control panel 7 for controlling the drain pump P, and further a tunnel transmission device 8.

  The pump control panel 7 controls the operation / stop of the drainage pumps P1 and P2 based on the set water level set remotely from the central monitoring device 2 as described later. Further, the pump control panel 7 acquires water level data of the drainage tank 5 at a cycle of, for example, 1 minute, and acquires data related to the operation / stop state of the drainage pumps P1 and P2. These data are transferred to the tunnel transmission device 8 and transmitted from the tunnel transmission device 8 to the central monitoring device 2 via the communication means (communication network) 9.

  The central monitoring device 2 includes water level setting / monitoring means (water level setting means) 10 for each drainage facility 1-TN1, 1-TN2, ... 1-TNn of each of the tunnels TN1, TN2,. F11 is provided and connected to each of the drainage facilities 1-TN1, 1-TN2,... 1-TNn via the communication means 9. The water level setting / monitoring means 10 includes a predicted inflow table 12 for storing the relationship between the precipitation and the predicted inflow amount to the drainage tank 5 in a certain time unit (for example, 10 minutes) in the drainage facility 1 and a drainage tank. 5, a set water level table 13 that holds the relationship between the predicted inflow to 5 and the operating water level in the drainage tank 5 in the drainage facility 1 in a table, and a set water level history database 14 that records a history of water level setting in the past of the drainage facility 1. The operation water level calculation unit 15 that calculates the operation water level in the drainage facility 1 using the predicted inflow table 12 and the set water level table 13 from the predicted precipitation input by the operator, and from the drainage facility 1 through the tunnel transmission I / F 11. The measured water level information of the drain tank 5 received as input information and the operation / stop information of the drain pumps P1, P2 are the water level / pump operation results. Water level / pump operation result database 16 to be recorded as a data, drainage facility data recording unit 17 that performs recording processing to the water level / pump operation result database 16, and the drainage tank 5 at that time in the state of drainage by the drainage pump P An operating water level changing unit 18 that changes the operating water level from the actual inflow amount to the water, monitoring the water level increase rate of the drainage tank 5 in the state of draining with the drainage pump P based on a preset limit water level increase rate, Also, the water level monitoring unit 19 that monitors the upper limit water level and the lower limit water level of the drain tank 5, and the water level increase rate of the drain tank 5 exceeds the limit water level increase rate and the water level of the drain tank 5 has reached the upper limit water level or the lower limit water level. In this case, a water level alarm output unit 20 that outputs an alarm is provided.

  The forecast precipitation input unit 3 is configured as a screen for the operator to input forecast precipitation. The forecast precipitation is usually input by inputting the forecast precipitation for one day in a fixed time unit (for example, three hours). Although the input of the forecast precipitation for one day is basically performed in the evening of the previous day, it is possible to input the change appropriately according to the change in the forecast. Forecast precipitation information can be obtained, for example, on an Internet weather forecast site.

  The graph display unit 4 is configured to display the water level trend of the drainage tank 5 in a graph, for example, on an hourly basis, and functions to assist the operator in grasping the situation.

  Next, a monitoring control method executed in the tunnel drainage equipment monitoring control system will be described. The control of the drainage facility in the monitoring control method is performed as a repetition of the process of setting the operating water level of the drainage tank at a predetermined time period (for example, 10 minutes). Here, a plurality of stages are determined in advance for the water level of the drainage tank. In the present embodiment, an upper limit water level, a lower limit water level, and a stop water level are provided, and four operation water levels A to D are provided at equal intervals between the upper limit water level and the stop water level. The upper limit water level is a water level that outputs an alarm as an abnormally high water level when the drainage tank is almost full. On the other hand, the lower limit water level is a water level that may cause an abnormality to the drainage pump if it is operated in this state. In this case, an alarm is output as an abnormally low water level and the drainage pump is protected to protect the drainage pump. Is set to the startup lock state. The stop water level is a water level at which the drain pump is stopped when any of the four operation water levels A to D is set and the drain pump is operated under the water level condition. For the four operating water levels A to D, the two drain pumps P1 and P2 are selectively used. That is, under the water level condition where the forecast water precipitation is the highest and the lowest water level D is set, when the water level is reached, the two drain pumps P1, P2 are started simultaneously, and the other water levels A to C Under the set water level conditions, when one of these water levels is reached, one of the two drain pumps P1 and P2, for example, the drain pump P1 is preferentially started. As described above, by providing a plurality of operating water levels and selectively using a plurality of drainage pumps for these operating water levels, the drainage pumps can be operated more efficiently.

  FIG. 2 shows the flow of processing in setting the operating water level. The operation water level setting process is periodically performed at a predetermined time period as described above, and is sequentially performed for all of a plurality of tunnels to be monitored and controlled by the tunnel drainage facility monitoring control system each time. In this embodiment, the cycle of the operating water level setting process is 10 minutes. When the operation water level setting at a certain point in time is started, first, the input of the forecast precipitation amount is confirmed for the drainage facility that is the first operation water level setting object (step 21). There is a default value (for example, 0 mm) for the predicted precipitation amount, and this default value is displayed when the predicted precipitation amount has not been entered. If it is the default in the predicted precipitation input confirmation, the process proceeds to step 24, and the set operation water level (the water level of the drainage tank set as the operation start water level of the drainage pump) is determined as the highest operation water level A.

  On the other hand, if the forecast precipitation input is confirmed in the forecast precipitation input confirmation, the predicted inflow amount to the drainage tank is determined in step 22. In the predicted inflow determination process, the predicted inflow table 12 is searched with the input forecast precipitation, the inflow corresponding to the input forecast precipitation is extracted, and is determined as the predicted inflow.

  When the predicted inflow amount is determined, the set operation water level is determined in step 23 from the predicted inflow amount. In the operation water level determination process, the set water level table 13 is searched for the predicted inflow amount, the operation water level corresponding to the predicted inflow amount is extracted, and it is determined as the set operation water level (any of the operation water levels B to D).

  When the set operation water level is determined in step 24 or step 23, it is determined in step 25 whether or not the drain pump is in operation. If the drainage pump (either or both of the drainage pumps P1 and P2) is in operation, the process proceeds to step 26 to perform an operation water level change process. As will be described later, in the operation water level change process, the set operation water level determined in step 24 or 23 is changed according to the actual inflow amount to the drainage tank in the drainage facility, and a new set operation water level is determined. . When the set operation water level is determined in the operation water level change process, the set operation water level is registered in the set water level history database 14 (step 27), and then the operation water level is output to the tunnel transmission I / F 11 and the tunnel transmission I / F 11 is output. To the pump control panel 7 of the drainage facility 1 (step 28). Here, there is a case where the set operating water level determined in the operating water level changing process is not registered in the set water level history database 14. This will be described later.

  On the other hand, if there is no drainage pump in operation, the set operating water level determined in step 24 or step 23 is registered in the set water level history database 14 (step 27), and then the operating water level is transferred to the tunnel transmission I. Output to / F11 and transmitted to the pump control panel 7 of the drainage facility 1 by the tunnel transmission I / F11 (step 28).

  The pump control panel 7 that has received the transmission of the set operation water level sets it as the operation water level and controls the drainage pump. For example, in the case of the operation water level D having the lowest set operation water level, when the water level is reached, the two drain pumps P1 and P2 are simultaneously started to operate until the stop water level is reached. If the set operation water level is the operation water level A, for example, when the water level is reached, for example, the drain pump P1 is preferentially started to operate until the stop water level is reached. Here, when the drainage facility 1 is an existing one and the pump control panel 7 does not have the function of directly inputting and setting the set operation water level commanded from the central monitoring device 2, the water level is set in the pump control panel 7. A change means 7A is provided, and the command setting operation water level from the central monitoring device 2 is set in the pump control panel 7 by the water level setting change means 7A.

  When the setting of the operating water level for one drainage facility is completed, it is determined whether or not there is a tunnel in which the operating water level is not set (step 29). If there is a tunnel with no operating water level set, return to step 21 and repeat the process up to step 28 until there are no tunnels with no operating water level set. finish. As described above, the above series of processing is periodically performed at a predetermined time period such as 10 minutes.

  FIG. 3 shows the flow of the operation water level change process. In the operation water level changing process, first, water level data and pump operation time data are acquired from the water level / pump operation result database 16 (step 31). The water level data is the difference between the water level at the time of the previous operation water level setting process and the current operation water level setting process, that is, the difference between the previous water level and the difference between the current water level and the water level 10 minutes before. The pump operation time data is the accumulated operation time of the drainage pump in the past 10 minutes up to the present time.

  When the water level data and the pump operation time data are obtained, the actual inflow amount is calculated based on these data (step 32). In the actual inflow amount calculation process, first, the discharge amount for the past 10 minutes is obtained from the pump operation time. The amount of discharge in the past 10 minutes is “the operation time (minutes) of the drainage pump P1 × the amount of discharge in one minute of the drainage pump P1 = the amount of discharge in the past 10 minutes of the drainage pump P1” and “the operation time (minutes) of the drainage pump P2. X Calculated as the sum of "1 minute discharge amount of drainage pump P2 = discharge amount of last 10 minutes of drainage pump P2". Next, the apparent inflow amount is obtained as “vs. previous water level difference × drainage tank bottom area = apparent inflow amount” from the previous water level difference. Then, the actual inflow is calculated from the discharge by the drainage pump and the apparent inflow. The actual inflow amount is obtained as “discharge amount + apparent inflow amount = actual inflow amount”. In this equation, if the difference in water level from the previous time is a positive value, that is, if the water level is higher than the previous time, the apparent inflow amount is a positive value, and the difference from the previous water level is a negative value, That is, when the water level is lower than the previous time, the apparent inflow amount becomes a negative value.

  Once the actual inflow is obtained, it is compared with the predicted inflow (step 33). If the predicted inflow amount is greater than or equal to the actual inflow amount, the set operating water level is not changed, the set operating water level determined in step 24 or step 23 is maintained, and the process proceeds to step 27 and subsequent steps. On the other hand, when it is determined that the predicted inflow amount is smaller than the actual inflow amount, the set operation water level is changed after step 34.

  In step 34, the set water level table 13 is searched with the actual inflow amount to extract the operation water level corresponding to the actual inflow amount, and is temporarily determined as the set operation water level. Next, an operating water level setting pattern in the past (during rain before this time), that is, a change pattern of the operating water level set in the past in the operating water level setting process that is periodically repeated is obtained from the set water level history database 14 (step 35). The past operation water level setting pattern is compared with the operation water level setting pattern up to the present time during the current rain (step 36). In this pattern comparison, if the current operation water level setting pattern matches or substantially matches the past operation water level setting pattern, the set operation water level in the past operation water level setting pattern is changed to the temporarily determined set operation water level in step 34. Adopt (step 37). For example, as a past operation water level setting pattern, there is a pattern in which the set operation water level is the operation water level A for 30 minutes after the start of the water level rise, and the set operation water level is the operation water level C for the next 10 minutes. If the water level setting pattern matches the pattern in which the set operating water level for 30 minutes after the start of rising water level is the operating water level A, even if the temporarily determined operating water level is the operating water level A in step 34, the past From the operating water level setting pattern, it is determined that the operating water level C is more appropriate for the set operating water level for the next 10 minutes, and this operating water level C is determined as the set operating water level.

  Such operation water level setting pattern comparison processing enables the operation water level to be set according to the characteristics of the drainage inflow to the drainage facilities in each tunnel. In other words, the inflow of drainage into the drainage facility has a feature that the inflow increases abruptly when it reaches a certain amount, or conversely decreases rapidly, and these characteristics differ from tunnel to tunnel. There are many. In order to cope with these characteristics, the operation water level setting process based on the inflow rate at that time is not sufficient, and the insufficient operation is compensated by the operation water level setting pattern comparison process, so that a more suitable operating water level can be achieved. Can be set.

  Here, accumulating past operating water level setting patterns and enabling the setting of the operating water level based on this will give learning to the water level setting / monitoring means 10, which is more suitable for practical use. It enables to set the operating water level. For such learning, if the set operation water level determined in step 37 is registered in the set water level history database 14, the learning performance is impaired. Accordingly, for the set operating water level by the operating water level changing process, only the set operating water level determined in step 34 is registered in the set water level history database 14.

  The water level setting / monitoring means 10 remotely controls the drainage facilities of each tunnel through the above-described operation water level setting process, while the water level monitoring unit 19 monitors the water level of the drainage tank during the control, When the water level rise rate exceeds the limit water level rise rate and when the water level in the drainage tank reaches the upper limit water level or the lower limit water level, an alarm is output, thereby assisting the operator to grasp the situation of each drainage facility. Further, the situation grasp support for the drainage equipment of each tunnel by the operator is also made by displaying the trend of the water level in the drainage tank of each drainage equipment on the graph display unit 4 as described above.

  As described above, in the present invention, the operation water level based on the predicted precipitation amount is automatically set. For this reason, it becomes possible to reliably perform the necessary drainage from the drainage tank while suppressing the operation of the drainage pump to the minimum necessary even for the sudden torrential rain that is likely to occur in recent years. Further, in the present invention, the set operation water level based on the forecast precipitation is automatically changed according to the actual rainfall state. For this reason, it becomes possible to control the drainage facilities in accordance with the actual rainfall conditions, and further, by providing learning by using the past operation water level setting pattern in the operation water level change process, the characteristics of individual tunnels can be specified. Accordingly, it is possible to perform more efficient control while avoiding wasteful operation of the drainage pump.

  In the above embodiment, only the operation water level is set. The embodiment for carrying out the present invention is not limited to this, and it is also possible to provide a plurality of stages for the stop water level as in the case of the operating water level, and to selectively set the stop water level according to the rainfall from them. It is.

  The present invention makes it possible to reliably perform necessary drainage from a drainage tank while controlling the operation of a drainage pump to the minimum necessary even in the case of sudden torrential rain, for monitoring control of a tunnel drainage facility. Therefore, it can be widely used as effective in the field of monitoring and control of tunnel equipment.

It is a figure which shows the structure of the tunnel drainage equipment monitoring control system in one Embodiment. It is a figure which shows the flow of an operating water level setting process. It is a figure which shows the flow of a driving | running | working water level change process.

Explanation of symbols

1 Drainage facility 2 Central monitoring device 5 Drainage tank 7 Pump control panel 10 Water level setting / monitoring means (water level setting means)
12 Predicted inflow table 13 Set water level table 14 Set water level history database 15 Operating water level calculation unit 18 Operating water level change unit P Drainage pump TN Tunnel

Claims (6)

For remotely monitoring and controlling a drainage tank of a tunnel having a drainage tank for storing drainage, a drainage pump installed in the drainage tank, and a pump control panel for controlling the drainage pump by a tunnel drainage equipment monitoring control system In the tunnel drainage monitoring and control method,
A water level setting means is provided in the tunnel drainage equipment monitoring and control system, and an operation water level that is the water level of the drainage tank that causes the drainage pump to start operation is set in the pump control panel at a predetermined time period by the water level setting means , A tunnel drainage facility monitoring and control method characterized in that the set operating water level set by the water level setting means is automatically determined based on the predicted precipitation . The tunnel drainage facility monitoring and control method according to claim 1, wherein the set operating water level determined based on the predicted precipitation amount is automatically changed based on an actual inflow amount of drainage into the drainage tank at the time of determination . The tunnel drainage facility monitoring and control method according to claim 2 , wherein when the set operating water level is changed based on the actual inflow amount, the set operating water level is changed with reference to a past operating water level setting pattern . In a tunnel drainage facility monitoring and control system for remotely monitoring and controlling a drainage tank for storing drainage, a drainage pump installed in the drainage tank, and a pump control panel for controlling the drainage pump ,
The water level setting means for setting the operation water level, which is the water level of the drainage tank that causes the drainage pump to start operation, to the pump control panel at a predetermined time period, and the water level setting means, to the forecast precipitation and the drainage tank A predicted inflow table that holds the relationship between the predicted inflow of wastewater in a table, a set water level table that stores the relationship between the predicted inflow to the drainage tank and the operating water level, and the input predicted precipitation A tunnel drainage facility monitoring and control system , further comprising an operation water level calculation unit that calculates a set operation water level using the predicted inflow amount table and the set water level table . The water level setting means further includes an operating water level changing unit that automatically changes the set operating water level determined based on the predicted precipitation based on the actual inflow amount of drainage into the drain at the time of the determination. The tunnel drainage facility monitoring and control system according to claim 4 . The water level setting means further includes a set water level history database that records a history of water level setting in the past of drainage equipment to be monitored and controlled , and is obtained from the set water level history database when the set operation water level is changed based on the actual inflow amount. The tunnel drainage facility monitoring and control system according to claim 4 , wherein the set operating water level is changed with reference to a past operating water level setting pattern .

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