JP3705712B2 - Rainwater pump control device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a facility that discharges rainwater flowing into a pump well to a river by a rainwater pump group, and more particularly, to a rainwater pump control device that controls the start / stop timing of the rainwater pumps and the number of operating units.
[0002]
[Prior art]
Conventionally, in this type of facility, generally, the start / stop water level of the rainwater pump is set in advance, and the water level of the pump well is controlled by the set start / stop water level.
[0003]
[Problems to be solved by the invention]
However, in such conventional rainwater pump control, the start of the rainwater pump is delayed at the time of rapid rain, and there is a possibility that flood damage may occur. Further, in order to avoid such damage, it is necessary to perform manual operation by an operator during a heavy rain, which is a burden on the operator.
[0004]
For this reason, in such rainwater pump control, several methods for draining rainwater reliably against sudden rain have been proposed. One method is to correct the start / stop water level of the rainwater pump using fuzzy calculations, etc., using the pump well water level, pump well water level change, etc., and control the pump well water level using the corrected start / stop water level. A method has been proposed. As another method, a method has been proposed in which a pump that can be operated in the air is incorporated as a preceding standby pump, and the preceding standby pump is started in advance at a certain starting water level.
[0005]
However, among the methods described above, the former method using fuzzy calculation etc. predicts the inflow of rainwater based on the rainfall measured by a rain gauge, etc. It is easy to overestimate or underestimate upstream conditions that have a significant impact on the inflow of rainwater into the pump well, and depending on the nature of the rain, it is impossible to accurately predict the inflow of rainwater There's a problem.
[0006]
In the latter method, which uses a preceding standby type pump, there is a difference between the starting water level and the water level at which the actual discharge starts, so depending on the characteristics of the rain, the starting time of the preceding standby type pump becomes unnecessarily long and wasted. There is a problem that is likely to occur.
[0007]
The present invention has been made in consideration of such points, and an object thereof is to provide a rainwater pump control device capable of appropriately and economically controlling a rainwater pump group even during a sudden rain.
[0009]
[Means for Solving the Problems]
  The present invention is a rainwater pump group installed in a pump well into which rainwater flows, and is provided in a pump well in a rainwater pump control apparatus that controls a rainwater pump group including a preceding standby type pump that can be operated in the air. Based on the pump well water level meter, the trunk water level meter provided in the inflow trunk line of the pump well, and the pump well water level measured by the pump well water level meter, the pump well water level and the pump well water level change amount are combined. The operating water level correction value of the rainwater pump and the preceding standby pump is obtained by fuzzy calculation, and the rainwater pump and the preceding standby pump are set based on the correction value and the preset operating water level of the rainwater pump and the preceding standby pump. Operating water level correction means for determining the operating water level, the operating water level of the rainwater pump and the preceding standby pump determined by the operating water level correction means, and the pump well Pump control means for controlling the operation timing of the rainwater pump and the preceding standby pump based on the pump well water level measured by the level gauge, and the operating water level correction means is the pump measured by the pump well level gauge Based on the well water level and the main water level measured by the main water level meter, the operating water level correction value of the rainwater pump and the preceding standby type pump is obtained, and the operating water level correction means is measured by the main water level meter The weather mode determination means for determining the weather mode based on the main water level, and a plurality of fuzzy rule tables are switched based on the weather mode determined by the weather mode determination means, and the pump is switched using the switched fuzzy rule table. Rainwater pump and preceding by fuzzy calculation combining well water level and pump well water level change A fuzzy computing means for obtaining an operating water level correction value of the mechanical pump, an operating water level correction value of the rainwater pump and the preceding standby pump by the fuzzy computing means, and an operating water level setting value of the rainwater pump and the preceding standby pump that are set in advance. Operating level calculation means for obtaining the operating water level of the rainwater pump and the preceding standby type pump based on the above, and the weather mode determining means, as the weather mode, the heavy rain mode for promoting the activation of the rainwater pump and the preceding standby type pump And a light rain mode that suppresses activation of a rainwater pump and a preceding standby pump, and the fuzzy computing means performs a fuzzy computation using the heavy rain mode or a fuzzy rule table corresponding to the light rain mode. A rainwater pump control device is provided.
[0010]
  In the present invention, based on the main water level measured by the main water level gauge, it is determined whether or not to obtain the operating water level correction value of the preceding standby pump by fuzzy calculation, and based on the determination result, It is preferable to further include an advance standby mode on / off determination means for switching the operation method of the advance standby pump.
[0012]
  According to the present invention, the rainwater pump group includes the preceding standby type pump that can be operated in the air, and the fuzzy control is applied to the preceding standby type pump as well as the normal rainwater pump. The wasteful start-up time of the preceding standby pump can be suppressed even when it takes a long time to reach the water level at which discharge begins or when it does not reach the water level at which discharge begins. Moreover, by calculating the start / stop water level correction value of the rainwater pump based on the main water level in the inflow main line of the pump well, the rainwater pump can be appropriately controlled in consideration of the situation on the upstream side of the pump well, For this reason, it is possible to appropriately cope with a sudden rain. Furthermore, as a weather mode for switching the fuzzy rule table, it has a heavy rain mode that promotes the activation of the rainwater pump and the preceding standby type pump, and a light rain mode that suppresses the activation of the rainwater pump and the preceding standby type pump, When the pump well level is rising but the main water level is falling, the number of operating rainwater pumps and standby standby pumps can be reduced, so there is no waste of rainwater pumps and standby standby pumps. Economic control can be realized.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
First embodiment
FIG. 1 is a diagram showing a first embodiment of a rainwater pump control apparatus according to the present invention.
[0014]
As shown in FIG. 1, the rainwater pump control apparatus 10 is used in a facility that discharges rainwater flowing into the pump well 1 to a river by a rainwater pump group. In such a facility, a plurality of rainwater pumps 2 are disposed in a pump well 1 into which rainwater flows. In addition, a pump well level gauge 3 is installed in the pump well 1, a rain gauge 4 for measuring rainfall is installed, and a main water level gauge 5 is installed on the inflow trunk 6 located upstream of the pump well 1. Has been.
[0015]
In FIG. 1, the rainwater pump control device 10 is configured to start / stop timing (operation timing) of the rainwater pump 2 based on various signals (pulse signals) taken from the pump well water gauge 3, the rain gauge 4, and the main water gauge 5. ) And control the number of operating units. The storm water pump control device 10 starts / stops the water level correction value (operating water level correction value) of the storm water pump 2 based on the pump water level measured by the pump water level meter 3 and the main water level measured by the main water level meter 5. Start / stop water level correction for determining the start / stop water level (operating water level) of the rainwater pump 2 based on this correction value and the preset start / stop water level setting value (operating water level setting value) of the rainwater pump 2 Means (operating water level correction means) 11 are provided. Further, the rainwater pump control device 10 issues a start / stop command based on the start / stop water level of the rainwater pump 2 obtained by the start / stop water level correcting means 11 and the pump well water level measured by the pump well level meter 3. Pump control means 15 is provided for controlling the start / stop timing and the number of operating rainwater pumps 2.
[0016]
Among these, the start / stop water level correction means 11 has a weather mode determination means 12 that determines the weather mode based on the rainfall measured by the rain gauge 4 and the main water level measured by the main water gauge 5. Yes. The weather mode includes a heavy rain mode and a heavy rain mode that promotes the activation of the rainwater pump 2, a light rain mode that suppresses the activation of the rainwater pump 2, and a normal mode that performs control according to preset start / stop water level setting values. Has two modes. These modes are determined based on the integrated value of rainfall over the past certain period of time or the main water level. For example, the heavy rain mode or the heavy rain mode is selected when both the pump well water level and the main water level are rising, and it is determined that there is a new inflow not only in the present but also in the future. On the other hand, the light rain mode is selected when it is determined that there is no new inflow in the future because the pump well water level is rising but the main water level is falling.
[0017]
Further, the start / stop water level correction means 11 switches a plurality of fuzzy rule tables corresponding to the heavy rain mode, heavy rain mode, light rain mode and normal mode based on the weather mode determined by the weather mode determination means 12, Using this switched fuzzy rule table, the start / stop water level correction value of the rainwater pump 2 is obtained by fuzzy calculation combining the pump well water level and the change from the previous value of the pump well water level (pump well water level change amount). A fuzzy computing means 13 is provided. Each fuzzy rule table corresponding to each of the heavy rain mode, the heavy rain mode, the light rain mode, and the normal mode includes a start water level correction rule table and a stop water level correction rule table.
[0018]
Furthermore, the start / stop water level correction means 11 adds the start / stop water level correction value of the rainwater pump 2 obtained by the fuzzy calculation means 13 to the preset start / stop water level setting value of the rainwater pump 2. It has start / stop water level calculation means (operating water level calculation means) 14 for calculating the start / stop water level of the rainwater pump 2.
[0019]
Next, the operation of the first embodiment of the present invention having such a configuration will be described.
[0020]
As shown in FIG. 1, the pump well water level meter 3 measures the water level of the pump well 1, the trunk water level meter 5 measures the trunk water level in the inflow trunk line 6, and the rain gauge 4 measures the rainfall.
[0021]
In the rainwater pump control device 10, first the weather is determined based on the rainfall measured by the rain gauge 4 and the main water level measured by the main water gauge 5 by the weather mode determination means 12 of the start / stop water level correction means 11. The mode (heavy rain mode, heavy rain mode, light rain mode and normal mode) is determined.
[0022]
Next, based on the weather mode determined by the weather mode determination means 12 by the fuzzy calculation means 13 of the start / stop water level correction means 11, a plurality of corresponding to the heavy rain mode, heavy rain mode, light rain mode, and normal mode, respectively. The fuzzy rule table is switched, and the start / stop water level correction value of the rainwater pump 2 is obtained by fuzzy calculation combining the pump well water level and the pump well water level change amount using the switched fuzzy rule table. At this time, for example, when the weather mode is the heavy rain mode or the heavy rain mode, a startup water level correction value that lowers the startup water level is obtained, and the rainwater pump 2 is started earlier than usual. On the other hand, when the weather mode is the light rain mode, a startup water level correction value that increases the startup water level is obtained, and the rainwater pump 2 that is started next is started with a delay.
[0023]
Thereafter, the start / stop water level calculation means 14 of the start / stop water level correction means 11 sets the start / stop water level correction value of the rainwater pump 2 obtained by the fuzzy calculation means 13 to the preset start / stop of the rainwater pump 2. The start / stop water level of the rainwater pump 2 is calculated by adding to the water level set value.
[0024]
Finally, the pump control means 15 starts / stops the command based on the start / stop water level of the rainwater pump 2 calculated by the start / stop water level calculation means 14 and the pump well water level measured by the pump well level gauge 3. To control the start / stop timing of the rainwater pump 2 and the number of operating units.
[0025]
As described above, according to the first embodiment of the present invention, the start / stop water level correction value of the rainwater pump 2 is obtained based on the main water level in the inflow main line 6 of the pump well 1. The rainwater pump 2 can be appropriately controlled in consideration of the upstream situation, and accordingly, it is possible to appropriately cope with a sudden rainfall.
[0026]
Further, according to the first embodiment of the present invention, since the start / stop water level correction value of the rainwater pump 2 is obtained by fuzzy calculation, the correction value can be flexibly changed according to the characteristics of rainfall, For this reason, appropriate and flexible control of the rainwater pump 2 can be realized.
[0027]
Furthermore, according to the first embodiment of the present invention, as a weather mode for switching the fuzzy rule table, a heavy rain mode for promoting the start of the rainwater pump 2 and a heavy rain mode, and a light rain mode for suppressing the start of the rainwater pump 2 Therefore, the number of operating rainwater pumps 2 can be reduced when the pump well water level is rising but the main water level is falling. Therefore, the economical economy of the rainwater pump 2 can be reduced. Control can be realized.
[0028]
In the first embodiment described above, the start / stop water level correction value of the rainwater pump 2 is obtained by the fuzzy calculation means 13 by fuzzy calculation combining the pump well water level and the pump well water level change amount. Not limited to this, for example, the start / stop water level correction value of the rainwater pump 2 may be obtained by fuzzy calculation combining the main line water level, the main line water level change amount, and the like.
[0029]
Second embodiment
Next, a second embodiment of the rainwater pump control apparatus according to the present invention will be described with reference to FIG. The second embodiment of the present invention includes a preceding standby type pump 2 ′ in which the rainwater pump group can be operated in the air, and applies the fuzzy control to the preceding standby type pump 2 ′ together with the normal rainwater pump 2. Except for the points described above, the rest is substantially the same as the first embodiment shown in FIG. In the second embodiment of the present invention, the same parts as those in the first embodiment shown in FIG.
[0030]
As shown in FIG. 2, the pump well 1 into which rainwater flows is provided with a plurality of normal rainwater pumps 2 and a preceding standby pump 2 'that can be operated in the air.
[0031]
Here, the preceding standby type pump 2 ′ is started prior to other normal rainwater pumps 2 at a certain start water level, and its start / stop water level is the same as that of other normal rainwater pumps 2. It is corrected by fuzzy calculation. That is, in the start / stop water level correction means 11, the preset start / stop water level is corrected by the weather mode determination means 12, the fuzzy calculation means 13 and the start / stop water level calculation means 14.
[0032]
Specifically, for example, regarding the start-up control of the standby standby pump 2 ′, when the weather mode is the heavy rain mode or the heavy rain mode and the water level is expected to rise rapidly due to a sudden inflow of rainwater, the start water level correction is performed. The value is increased and the starting water level is lowered so that the preceding standby pump 2 'is started as soon as possible. On the other hand, if the weather mode is light rain mode and it is expected that it will take some time to reach the water level where it will actually begin to spout due to the gentle inflow of rainwater, make sure that the startup water level correction value is not too high and start The water level is raised so that the standby standby pump 2 'is started with a delay. As for stop control of the preceding standby pump 2 ', for example, when it is predicted that rainwater will not flow in the future, the timer operation time in the air standby state is shortened.
[0033]
In the rainwater pump control apparatus 10 shown in FIG. 2, the fuzzy control is always applied to the preceding standby pump 2 '. However, as shown in FIG. 16, the operation method of the preceding standby pump 2 ′ may be switched based on the main line water level measured by the main line water level meter 5 or the rainfall amount measured by the rain gauge 4. Specifically, the advance standby mode on / off determination means 16 determines whether or not to determine the start / stop water level correction value of the advance standby pump 2 'by fuzzy calculation, and based on the determination result, the advance standby type As a method of operating the pump 2 ′, the advance standby pump 2 ′ is started in advance as usual (advance standby input mode), or the advance standby pump 2 ′ is put into the object of fuzzy calculation (advance standby standby Mode), select one of the operation methods.
[0034]
As described above, according to the second embodiment of the present invention, the rainwater pump group includes the preceding standby type pump 2 ′ that can be operated in the air, and also to the advanced standby type pump 2 ′ together with the normal rainwater pump 2. Since fuzzy control is applied, it takes time to reach the water level at which discharge begins due to the slow inflow of rainwater, or even when it does not reach the water level at which discharge begins, the preceding standby pump 2 The useless startup time of ′ can be suppressed. For this reason, in addition to the operational effects of the first embodiment described above, it is possible to realize economical control without further waste.
[0035]
Further, according to the second embodiment of the present invention, an efficient operation according to the characteristics of the preceding standby pump 2 ′ can be realized by switching the operation method of the preceding standby pump 2 ′.
[0036]
Third embodiment
Next, a third embodiment of the rainwater pump control apparatus according to the present invention will be described with reference to FIG.
[0037]
As shown in FIG. 1, the rainwater pump control apparatus 10 is used in a facility that discharges rainwater flowing into the pump well 1 to a river by a rainwater pump group. In such a facility, a plurality of rainwater pumps 2 and a preceding standby pump 2 'that can be operated in the air are disposed in a pump well 1 into which rainwater flows. In addition, a pump well water level meter 3 is installed in the pump well 1, and a rain gauge 4 for measuring rainfall is further installed.
[0038]
In FIG. 1, the rainwater pump control device 10 calculates start / stop water level correction values (operating water level correction values) of the rainwater pump 2 and the preceding standby type pump 2 ′ based on the pump well water level measured by the pump well level gauge 3. The starting / stopping of the rainwater pump 2 and the preceding standby pump 2 'is obtained based on the correction value and the preset start / stop water level setting value (operating water level setting value) of the rainwater pump 2 and the preceding standby pump 2'. A start / stop water level correcting means (operating water level correcting means) 11 for obtaining a stop water level (operating water level) is provided. Further, the rainwater pump control device 10 determines the start / stop water level of the rainwater pump 2 and the preceding standby type pump 2 ′ obtained by the start / stop water level correcting means 11 and the pump well level measured by the pump well level meter 3. Based on this, it has a pump control means 15 for sending a start / stop command and controlling the start / stop timing (operation timing) and the number of operating units of the rainwater pump 2 and the preceding standby pump 2 '.
[0039]
Among these, the start / stop water level correction unit 11 includes a weather mode determination unit 12 that determines the weather mode based on the rainfall measured by the rain gauge 4. The weather mode includes a heavy rain mode and a heavy rain mode that promotes the activation of the rainwater pump 2, a light rain mode that suppresses the activation of the rainwater pump 2, and a normal mode that performs control according to preset start / stop water level setting values. Has two modes. These modes are determined based on the integrated value of rainfall over a certain period of time in the past. For example, the heavy rain mode or the heavy rain mode is selected when both the pump well level and the integrated value of rainfall are increased, and it is determined that there is a new inflow not only at the present but also in the future. On the other hand, the light rain mode is selected when it is determined that there is no new inflow in the future because the integrated value of the rainfall is decreasing although the pump well level is rising.
[0040]
Further, the start / stop water level correction means 11 switches a plurality of fuzzy rule tables corresponding to the heavy rain mode, heavy rain mode, light rain mode and normal mode based on the weather mode determined by the weather mode determination means 12, Using this switched fuzzy rule table, the rainwater pump 2 and the preceding standby pump 2 'are activated by fuzzy calculation combining the pump well water level and the change from the previous value of the pump well water level (pump well water level change). / It has the fuzzy calculating means 13 which calculates | requires a stop water level correction value. Each fuzzy rule table corresponding to each of the heavy rain mode, the heavy rain mode, the light rain mode, and the normal mode includes a start water level correction rule table and a stop water level correction rule table.
[0041]
Further, the start / stop water level correction means 11 uses the rain / water pump 2 and the preceding standby pump that are set in advance as the start / stop water level correction values of the rainwater pump 2 and the preceding standby pump 2 ′ obtained by the fuzzy computing means 13, respectively. A start / stop water level calculating means (operating water level calculating means) 14 for calculating the start / stop water level of the rainwater pump 2 and the preceding standby pump 2 'by adding to the start / stop water level set value of 2' is provided. .
[0042]
Next, the operation of the third embodiment of the present invention having such a configuration will be described.
[0043]
As shown in FIG. 1, the pump well water level meter 3 measures the water level of the pump well 1, and the rain gauge 4 measures the rainfall amount.
[0044]
In the rainwater pump control device 10, first, the weather mode (heavy rain mode, heavy rain mode, light rain mode, and normal mode) based on the rainfall measured by the rain gauge 4 by the weather mode determination means 12 of the start / stop water level correction means 11. Mode).
[0045]
Next, based on the weather mode determined by the weather mode determination means 12 by the fuzzy calculation means 13 of the start / stop water level correction means 11, a plurality of corresponding to the heavy rain mode, heavy rain mode, light rain mode, and normal mode, respectively. The fuzzy rule table is switched, and using the switched fuzzy rule table, the start / stop water level correction value of the rainwater pump 2 and the preceding standby pump 2 ′ is calculated by fuzzy calculation combining the pump well water level and the pump well water level change amount. Ask for. At this time, for example, when the weather mode is the heavy rain mode or the heavy rain mode, the start water level correction value that lowers the start water level is obtained, and the rain water pump 2, the rain water pump 2, and the preceding standby pump 2 'are more than normal. Make it start quickly. On the other hand, when the weather mode is the light rain mode, a startup water level correction value that raises the startup water level is obtained, and the rainwater pump 2 and the preceding standby pump 2 'that are started next are delayed. To.
[0046]
Thereafter, the start / stop water level calculation means 14 of the start / stop water level correction means 11 sets in advance the start / stop water level correction values of the rainwater pump 2 and the preceding standby pump 2 ′ obtained by the fuzzy calculation means 13. The starting / stopping water level of the rainwater pump 2 and the preceding standby pump 2 ′ is calculated by adding to the starting / stopping water level setting value of the rainwater pump 2.
[0047]
Finally, the pump control means 15 starts and stops the rainwater pump 2 and the preceding standby pump 2 'calculated by the start / stop water level calculation means 14 and the pump well water level measured by the pump well level gauge 3. The start / stop command is sent based on the above, and the start / stop timing and the number of operating units of the rainwater pump 2 and the preceding standby pump 2 'are controlled.
[0048]
In the rainwater pump control apparatus 10 shown in FIG. 4, the fuzzy control is always applied to the preceding standby type pump 2 '. However, as shown in FIG. 16 may be provided so that the operation method of the preceding standby pump 2 ′ is switched based on the rainfall measured by the rain gauge 4. Specifically, the advance standby mode on / off determination means 16 determines whether or not to determine the start / stop water level correction value of the advance standby pump 2 'by fuzzy calculation, and based on the determination result, the advance standby type As a method of operating the pump 2 ′, the advance standby pump 2 ′ is started in advance as usual (advance standby input mode), or the advance standby pump 2 ′ is put into the object of fuzzy calculation (advance standby standby Mode).
[0049]
As described above, according to the third embodiment of the present invention, the rainwater pump group includes the preceding standby type pump 2 ′ that can be operated in the air, and with respect to the advanced standby type pump 2 ′ together with the normal rainwater pump 2. Since fuzzy control is applied, it takes time to reach the water level at which discharge begins due to the slow inflow of rainwater, or even when it does not reach the water level at which discharge begins, the preceding standby pump 2 The useless start-up time of ′ can be suppressed, and therefore economical control without waste can be realized.
[0050]
Further, according to the third embodiment of the present invention, an efficient operation according to the characteristics of the preceding standby pump 2 ′ can be realized by switching the operation method of the preceding standby pump 2 ′.
[0051]
【The invention's effect】
As described above, according to the present invention, since the start / stop water level correction value of the rainwater pump is obtained based on the main water level in the inflow main line of the pump well, the rainwater is taken into account the situation on the upstream side of the pump well. The pump can be appropriately controlled. Therefore, it is possible to appropriately cope with a sudden rainfall. In addition, since the rainwater pump group includes a preceding standby pump that can be operated in the air, and fuzzy control is applied to the preceding standby pump as well as the normal rainwater pump, the water level that begins to discharge due to the gentle inflow of rainwater Therefore, it is possible to suppress the useless start-up time of the preceding standby type pump even in the case of rainfall that takes time to reach the water level or does not reach the water level at which discharge begins.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a first embodiment of a rainwater pump control apparatus according to the present invention.
FIG. 2 is a block diagram showing a second embodiment of a rainwater pump control apparatus according to the present invention.
FIG. 3 is a block diagram showing a modification of the rainwater pump control apparatus shown in FIG.
FIG. 4 is a block diagram showing a third embodiment of a rainwater pump control apparatus according to the present invention.
FIG. 5 is a block diagram showing a modified example of the rainwater pump control device shown in FIG.
[Explanation of symbols]
1 Pump well
2 Rainwater pump
2 'Advance standby type pump
3 Pump well level gauge
4 rain gauge
5 Main water gauge
6 Inflow trunk line
10 Rainwater pump control device
11 Start / stop water level correction means (operating water level correction means)
12 Weather mode judgment means
13 Fuzzy operation means
14 Start / stop water level calculation means (operating water level calculation means)
15 Pump control means
16 Advance standby mode on / off judging means

Claims (2)

In a rainwater pump control apparatus for controlling a rainwater pump group including a preceding standby type pump that can be operated in air, which is a rainwater pump group installed in a pump well into which rainwater flows.
A pump well level meter provided in the pump well,
A trunk water level meter provided on the inflow trunk of the pump well;
Based on the pump well water level measured by the pump well level gauge, the operating water level correction value of the rainwater pump and the preceding standby type pump is obtained by fuzzy calculation combining the pump well water level and the pump well water level change amount. And an operating water level correction means for determining the operating water level of the rainwater pump and the preceding standby pump based on the preset operating water level of the rainwater pump and the preceding standby pump,
A pump for controlling the operation timing of the rainwater pump and the preceding standby pump based on the operating water level of the rainwater pump and the preceding standby pump obtained by the operating water level correcting means and the pump well water level measured by the pump well level meter. Control means,
The operating water level correction means obtains the operating water level correction value of the rainwater pump and the preceding standby type pump based on the pump well water level measured by the pump well level meter and the main water level measured by the main water level meter. Yes,
The operating water level correcting means includes a weather mode determining means for determining a weather mode based on the main water level measured by the main water gauge, and a plurality of fuzzy rule tables based on the weather mode determined by the weather mode determining means. Using the switched fuzzy rule table, the fuzzy calculation means for calculating the operating water level correction value of the rainwater pump and the preceding standby type pump by fuzzy calculation combining the pump well water level and the pump well water level change amount, and Operation for obtaining the operating water level of the rainwater pump and the preceding standby pump based on the operating water level correction value of the rainwater pump and the preceding standby pump and the preset operating water level of the rainwater pump and the preceding standby pump by the fuzzy arithmetic means Water level calculation means,
The weather mode determination means includes, as the weather mode, a heavy rain mode that promotes activation of a rainwater pump and a preceding standby type pump, and a light rain mode that suppresses activation of the rainwater pump and the preceding standby type pump, and the fuzzy calculation The means performs a fuzzy calculation using a fuzzy rule table corresponding to the heavy rain mode or the light rain mode.   Based on the main water level measured by the main water level meter, it is determined whether or not to obtain the operating water level correction value of the preceding standby pump by fuzzy calculation, and based on the determination result, the operation method of the preceding standby pump The rainwater pump control device according to claim 1, further comprising a preceding standby mode on / off judging means for switching between the two.

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