JP3417766B2 - Water supply planning support device and water supply control system - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water supply amount planning support device and a water supply control system for assisting in the preparation of a water supply amount plan when preparing a water supply amount plan for a water purification plant.

[0002]

2. Description of the Related Art Conventionally, the supply of clean water to homes and businesses has been carried out from a water supply station located relatively close to users, and the required amount of clean water is supplied from the water purification plant to this water supply station. Are being supplied.

The water supply from the water purification plant to the water supply station is carried out systematically, and for example, a water supply amount plan is set in advance on a daily basis.

FIG. 14 is an overall view of the system showing the relationship between the water supply from the water purification plant to the water supply station and the preparation of the water supply amount plan.

First, the water supply station 5 distributes tap water to customers, other pump stations, and water supply stations. Further, in the water purification plant 4, the pump 6 is used to send the purified water so that the water level of the distribution reservoir of the water supply station 5 does not exceed the upper and lower limits.

At this time, since the fluctuation of the water supply amount affects the water treatment system in the water purification plant, it is necessary to suppress the fluctuation by smoothing the water supply amount as much as possible.

Therefore, conventionally, the water supply amount plan of the water purification plant is created by using the water supply amount planning support device 1 so that the number of changes of the planned water supply amount is reduced as much as possible.

For this reason, the daily water distribution amount of the water supply station 5 is predicted as the predicted water distribution amount 3 in advance, and the predicted water distribution amount 3 is set so that the water level of the reservoir of the water supply station 5 does not exceed the upper and lower limits. Is used to create a water flow rate plan for the water purification plant 4. That is, the predicted water distribution is the amount of water predicted to be consumed on the demand side.

The water level of the distribution reservoir of the water supply station 5 calculated when preparing the water supply plan is called "planned water level". In addition, the planned water flow and the planned water level are simply called “plan”.

The procedure for creating a plan will be described below with reference to FIG.

FIG. 15 is a block diagram showing the processing of a conventional water supply amount planning support device.

Here, an example of creating a plan for one day every hour will be described.

The constraint condition is that the planned water level does not deviate from the water level upper and lower limits.

When making a water supply amount plan for one day, each stage is divided into 24 stages per hour. First, the planned time calculation unit 21 calculates the time at the end of the stage to be calculated, that is, the planned time, using the equation (1).

T = t + dt (1) Here, t: planning time [h] dt: time interval for planning [h] Further, here, the planned water supply increment value at the target stage is first 0 [ m3 / h] is set.

Next, in the planned water supply amount calculation unit 22, the planned water supply amount at the planning time calculated by the planning time calculation unit 21, that is, the planned water supply amount in the corresponding stage is calculated by the equation (2).

Qin (t) -qin (t-dt) + dqin (2) Where, qin (t): Planned water supply amount [m3 / h] at time t dqin: Planned water supply increment value [m3 / h] Next, in the planned water level calculator 24, the planned water level at the planned time is calculated by the formula (3) using the predicted water distribution 3 which is predicted in advance and stored in the database DB. In addition, in this example, the stage progresses in units of 1 hour, so
In equation (3), the planned water level is calculated based on the difference in the amount of water sent and distributed for one hour.

H (t) = h (t-dt) + (qin (t) -qout (t)) / A (3) where qin (t) is the planned water flow rate [m3 / h] at time t. ] Qout (t): predicted water distribution [m3 / h] at time t [m3 / h] h (t): planned water level at time t [m] A: cross-sectional area of reservoir [m2] Next, at the planned value determination unit 25,
It is determined whether the plan satisfies the constraint condition. If the constraint condition is not satisfied, the planned water supply increment value is set under the conditions shown in the equations (4a) and (4b), and the calculation in the planned water supply calculation unit 22 is returned to.

Planned water level> water level upper limit value-> designed water supply amount increment value = α (4a) Designed water level <water level lower limit value−> designed water supply amount increment value−−α (4b) α: arbitrary value (eg: 500 m3 / h, etc.) Here, the planned water supply increment value α is the type of pump, capacity,
It is a value that is arbitrarily set in advance in consideration of the number of units and the like.

Next, the planned water supply amount calculation unit 22 recalculates the planned water supply amount by the formula (2), and the planned water level calculation unit 24 recalculates the planned water level by the formula (3). Further, the plan value determination unit 25 redetermines whether or not the plan satisfies the constraint condition.

If the plan does not satisfy the constraint condition, the planned water supply increment value is further changed, and this series of operations is repeated until the planned water level satisfies the constraint condition.

Next, the all-time plan end determination unit 26
It is determined whether or not plans have been created for all stages. If plans for one day have been created, the process ends, and if plans for one day have not been created, the process returns to the plan time calculation unit 21. Plans for the next stage will be created.

The above flow is shown in FIG.

FIG. 16 is a diagram showing an example of a plan created by a conventional water supply amount planning support device.

As shown in the figure, first, the initial water supply amount of the stage 1 is set (step 1).

Next, it is examined whether the water supply amount satisfies the constraint condition (step 2A). If the constraint condition is satisfied, the stage is advanced (step 2B-1). Figure 1
In the example of 6, the constraint conditions are satisfied in stages 1 and 2, and the process proceeds to stage 3.

When the constraint condition is not satisfied, the flow rate is changed (step 2B-2), and it is checked again whether the constraint condition is satisfied with the changed water supply amount (step 2A). In the example of FIG. 16, the water supply amount is increased in stage 3.

If the changed water supply amount satisfies the constraint condition, the stage is advanced with the water supply amount unchanged. Thereafter, the processes of steps 2A to 2B-2 described above are performed in the same manner, the water supply amount up to the final stage is set, and the water supply amount plan is completed.

[0029]

In the conventional water quantity planning support device shown in FIG. 15, the planned water quantity is increased or decreased by α [m3 / h] to create a plan. The planned value may be a flow rate that the pump cannot actually deliver.

As described above, when the planned flow rate is the flow rate that the water pump cannot deliver, the flow rate cannot be produced according to the planned value. Therefore, when the water flow is executed based on the water flow rate plan created by the conventional water flow rate plan support device. However, there is a difficulty that the actual water level may deviate from the planned water level, and the constraint condition of the water level may not be satisfied.

Further, as described above, in the conventional plan support method, since it is only judged whether or not the constraint condition is satisfied for each stage, a plan such that the planned water level passes an arbitrary water level at an arbitrary time. There is a drawback that it is not possible to make a plan and the degree of freedom in planning is low.

The present invention has been made in consideration of such a situation, and the first purpose thereof is to plan a water supply amount without setting a flow rate that cannot be pumped by a water supply amount plan value. To provide a water quantity planning support device.

A second object of the present invention is to provide a water quantity planning support device capable of preparing a plan such that the planned water level passes through the arbitrary water level at an arbitrary time.

Further, a third object is to provide a water quantity planning support device and a water quantity planning support apparatus which can correct the water quantity planned value and prepare a water quantity plan so as to satisfy the constraint condition even if the planned value and the actual value are different from each other. To provide a control system.

[0035]

In order to solve the above problems, the invention according to claim 1 provides a water supply amount for supporting the preparation of a water supply plan for supplying water from a water purification plant to a water supply station by at least one water supply pump. In the planning support device, with respect to the constraint condition that the water level at the water supply station falls within the upper and lower limit water levels, a planned time calculating means for calculating a planned time as a time point for judging whether or not this constraint condition is satisfied, and a planned time calculation The planned water supply amount calculating means for calculating the planned water supply amount as the water supply amount between the planned times obtained from the means based on the predetermined condition, and the planned water supply amount obtained by the planned water supply amount calculating means do not meet the predetermined condition. When the water supply capacity of the water supply pump is exceeded, the planned water supply correction means that corrects the planned water supply so that it falls within the water supply capacity range of the water supply pump, and the planned water level as the water level predicted at the planned time is calculated. And means, based on the planned water level in the pre-predicted predicted water distribution amount, plan planned water amount was fixed in water quantity correction means and the last planned time in the water stations,
It determines whether or not the planned water level calculation means for calculating the planned water level at this planned time and the planned water level obtained by the planned water level calculation means satisfy the constraint condition. It is a water supply amount planning support device including a plan value determining means for changing.

Next, in the invention corresponding to claim 2, in the water quantity planning support device for supporting the preparation of the water supply plan for supplying water from the water purification plant to the water supply station by at least one water supply pump, the water level at the water supply station is Regarding a constraint condition that falls within the upper and lower limit water levels, a planned time calculating means for calculating a planned time as a time point for determining whether or not this constraint condition is satisfied, and a water pump between the planned times obtained from the planned time calculating means. Pump operating number calculation means for calculating the number of operating pumps from a predetermined condition, pump rotation speed calculating means for calculating the water pump rotation speed between the planned times obtained from the planned time calculating means, and pump operation number calculation And a planned water supply amount calculation means for calculating a planned water supply amount as a water supply amount between planned times from the number of pumps operated by the means and the pump rotation speed obtained by the pump speed calculation means. It is a means to calculate the planned water level as the water level predicted at the planned time, which is the predicted water distribution quantity predicted in advance at the water supply station, the planned water quantity calculated by the planned water quantity calculation means, and the plan at the last planned time. Based on the water level, the planned water level calculation means for calculating the planned water level at this planned time and the planned water level obtained by the planned water level calculation means are judged whether or not they satisfy the constraint conditions. It is a water supply amount planning support device provided with a planned value determination means for changing a predetermined condition within the capacity range of the water supply pump.

The invention according to claim 3 is the same as the invention according to claim 2, in which the pump revolution number calculating means is
This is a water supply volume planning support device that calculates the water pump rotation speed based on the planned water level at the previous planned time.

Further, in the invention according to claim 4, in the water quantity planning support device for supporting the preparation of the water supply plan for supplying water from the water treatment plant to the water supply station by at least one water supply pump, the water level at the water supply station is higher. For a constraint condition that falls within the lower limit water level, a planning time calculating means for calculating a planning time as a time point for determining whether or not the constraint condition is satisfied, and at least a planned water level corresponding to the predicted water level at the planning time It is a part of the pump condition and one pump condition, and the pump water supply amount setting means for setting the planned water supply amount as the water supply amount between the planned times corresponding to each pump condition within the range of the water supply capacity of the water supply pump. This time, the pump condition was set based on the number of operating pumps and the planned water level at the previous planned time, and based on this fixed pump condition, the pump water flow rate setting means was set. Based on the planned water flow amount selection means for selecting the planned water flow amount, the predicted water distribution amount predicted at the water supply station, the selected planned water flow amount, and the planned water level at the previous planned time, the planned water level at this planned time A planned water level calculating means for calculating the planned water level, and a planned value judging means for judging whether or not the planned water level obtained by the planned water level calculating means meets the constraint condition, and if not, changing the pump operating number condition It is a water supply plan support device equipped with.

Furthermore, the invention corresponding to claim 5 is
In the inventions corresponding to claims 1 to 4, the water level determination means for determining whether or not the planned water level at the current planned time becomes the set water level within a predetermined range at a preset time, and the current planned time When the planned water level of No. is not within the set water level within the predetermined range, the condition change means for changing the condition that should be changed when the constraint condition is not met by the plan value judgment means and the condition changed by the condition change means are used again. When the planned water level of this time does not reach the set water level, it is equipped with a correction time calculating means for returning the planned time to be calculated by the planning time calculating means to the previous planned time and starting over from the previous calculation of the planned water flow rate. It is a water supply plan support device.

On the other hand, the invention corresponding to claim 6 is, in the invention corresponding to claims 1 to 5, based on the cumulative error between the actual water distribution amount and the predicted water distribution amount which is the actual water distribution amount at the water supply station. Of the actual water distribution amount determining means for deciding whether or not to re-plan, and a predicted water distribution amount correcting means for correcting the predicted water distribution amount used for re-planning based on the actual water distribution amount. .

The invention according to claim 7 is, in the invention according to claims 1 to 5, re-planning of the water transmission plan based on an error between the actual water level at the water supply station and the planned water level. A water supply volume plan that includes actual water level determination means that determines whether or not to perform it, and predicted water distribution correction means that corrects the predicted water distribution used for re-planning based on the actual water distribution that is the actual water distribution at the water supply station. It is a support device.

Further, the invention according to claim 8 is the invention according to claims 1 to 5, wherein the water level at the water supply station is based on the actual water level which is the actual water level at the water supply station, the planned water supply quantity and the predicted water distribution quantity. Calculate the predicted water level up to several hours ahead, and determine whether or not to re-plan the water supply plan based on whether or not this predicted water level satisfies the constraint conditions, and the actual water level prediction judgment means and the actual water level at the water supply station. This is a water supply volume planning support device provided with a predicted water distribution correction means for correcting the predicted water distribution used for re-planning based on the actual water distribution which is the water distribution.

Furthermore, the invention corresponding to claim 9 is
A water supply amount planning support device according to any one of claims 1 to 8, and pump operating means for outputting a control signal for controlling the operating state of at least one water supply pump based on the water supply plan. It is a water supply control system.

On the other hand, in the invention corresponding to claim 10, in the water supply amount plan support device for supporting the preparation of the water supply plan for supplying water from the water purification plant to the water supply station by at least one water supply pump, The planned water flow rate calculation means that calculates the planned water flow rate from the specified conditions, and if the planned water flow rate exceeds the water supply capacity of the water pump under the specified conditions, the planned water flow rate will be within the range of the water supply capacity. And a planned water flow rate correction means for correcting

(Operation) Therefore, first, in the water quantity planning support apparatus of the invention according to claim 1, the planned time is calculated, and the planned water quantity is determined depending on whether the planned water level at the planned time satisfies the constraint condition. Will be planned.

That is, first, the planned time is calculated by the planned time calculating means.

Next, the planned water supply amount calculating means calculates the planned water supply amount as the water supply amount between the planned times based on the predetermined condition based on the predetermined condition. Here, as an example of the predetermined condition, for example, an incremental flow rate value of the planned water supply amount can be considered.

Furthermore, when the planned water supply amount obtained by the planned water supply amount calculation means exceeds the water supply capacity of the water supply pump under the above-mentioned predetermined conditions, the planned water supply amount correction means causes the water supply capacity of the water supply pump to fall within the water supply capacity range. The planned water supply volume will be adjusted so that

Whether or not the calculated amount of water to be pumped for a certain planned time thus calculated satisfies the constraint condition is determined as follows.

That is, first, the planned water level calculating means
The planned water level at the current planned time is calculated based on the predicted water distribution, the corrected planned water flow, and the planned water level at the previous planned time.

Next, the planned value determining means determines whether or not the planned water level satisfies the constraint condition, and when it does not satisfy the constraint condition, the predetermined condition is changed.

When the predetermined condition is changed, the planned water supply amount calculating means calculates the planned water supply amount again, so that the planned value judging means again judges the constraint condition. By repeating this, the final planned water supply volume will be determined.

In the water supply amount planning support device described above, when the planned water supply amount exceeds the water supply capacity of the water supply pump, the planned water supply amount correcting means corrects the planned water supply amount so that it falls within the water supply capacity range of the water supply pump. Therefore, it is possible to plan a water supply plan that does not set the flow rate that cannot be pumped as the water supply plan value.

Further, in the water supply amount planning support device of the inventions corresponding to claims 2 and 3, the same operation as the invention corresponding to claim 1 is performed, and in addition, in calculating the planned water supply amount, the water supply pump By designating the number of operating vehicles and the number of revolutions, the planned water supply volume is calculated.

Since the number of operating water pumps and the number of revolutions of the water pump are to be specified within the capacity range of the water pump, a water supply plan is planned without setting the flow rate that the pump cannot output as the water supply plan value. can do.

Further, in the water supply amount planning support device of the invention according to claim 4, the pump water supply amount setting means operates in addition to the same function as that of the invention according to claim 1, and at least one corresponding to the planned water level is provided. The pump condition and the planned water supply amount corresponding to each pump condition are set within the water supply capacity of the water pump.

When calculating the planned water supply amount, the planned water supply amount selecting means determines the pump condition from the condition of the number of pumps operating and the planned water level at the previous planned time, and based on the confirmed pump condition. The current planned water supply amount set in the pump water supply amount setting means is selected.

Therefore, the planned water supply amount within the range of the water supply capacity of the water supply pump can be calculated at high speed and reliably, and a water supply plan that does not set a flow rate that the pump cannot output as the water supply amount plan value should be planned. You can

Further, in the water supply amount planning support device of the invention according to claim 5, the same operation as the invention according to claims 1 to 4 is performed, and in addition, the water level determination means causes the plan at the current planned time. It is determined whether or not the water level reaches a set water level within a predetermined range at a preset time.

Here, when the planned water level at the current planned time is not within the set water level within the predetermined range, the condition changing means changes the condition to be changed when the planned value judging means does not satisfy the constraint condition. To be done.

As a result, the planned water supply amount is re-planned as in the above case. At this time, when the re-planned current water level does not reach the set water level, the corrected time calculation means calculates the planned time. The planned time to be calculated by the means is returned to the previous planned time, and the process is restarted from the previous calculation of the planned water supply amount.

Therefore, in some cases, the water flow rate plan may be re-created from a plurality of times before the planned time, but this ensures that the planned water level at the current planned time falls within a predetermined range at a preset time. Plan to set water level.

Therefore, according to the present invention, it is possible to prepare a plan in which the planned water level passes through the arbitrary water level at an arbitrary time.

On the other hand, in the water supply amount planning support device of the invention according to claim 6, the same operation as that of the invention according to claims 1 to 5 is performed, and first, by the actual distribution amount judging means,
Whether or not to re-plan the water transmission plan is determined based on the cumulative error between the actual water distribution which is the actual water distribution at the water supply station and the predicted water distribution.

Then, the predicted water distribution correction means corrects the predicted water distribution used for re-planning based on the actual water distribution.

Therefore, even if the planned value and the actual value deviate from each other, the water supply plan value can be corrected and the water supply plan can be prepared so as to satisfy the constraint condition.

Further, the water supply amount planning support device of the invention according to claim 7 operates in the same manner as the invention according to claim 6, and it is also possible to judge whether or not to re-plan the water supply plan based on the actual water level. The determination means determines whether or not to re-plan the water transmission plan based on the difference between the actual water level and the planned water level.

Furthermore, the water supply amount planning support device of the invention according to claim 8 operates in the same manner as the invention according to claim 6, and determines whether or not to re-plan the water supply plan by determining the actual water level. The determining means calculates the predicted water level up to several hours ahead at the water supply station based on the actual water level, the planned water supply amount, and the predicted water distribution amount, and determines whether or not the predicted water level satisfies the constraint condition.

Furthermore, in the water supply control system of the invention according to claim 9, the same function as that of the invention according to claims 1 to 8 is achieved, and in addition, the pump operating means supplies water to at least one water pump. A control signal for controlling the operating state based on the plan is output.

On the other hand, in the water quantity planning support device of the invention according to claim 10, first, the preparation of a water supply plan in which at least one water pump is used to supply water from the water purification plant to the water supply station is supported. There is.

At the stage of preparing the water supply plan, the planned water supply amount calculating means calculates the planned water supply amount as the water supply amount during the predetermined time from the predetermined condition.

Further, when the calculated planned water supply amount exceeds the water supply capacity of the water supply pump under a predetermined condition, the planned water supply amount is corrected by the planned water supply amount correcting means so as to be within the range of the water supply capacity. To be done.

Therefore, it is possible to plan a water supply plan without setting a flow rate that cannot be pumped as the water supply plan value.

[0074]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing a configuration example of a water supply control system having a water supply amount planning support device according to an embodiment of the present invention.

The water supply control system 10 is provided with a water supply amount planning support device 11 and a pump operation device 12, and an input of a plan preparation instruction from the input device 13.

Further, the water supply amount planning support device 11 creates a plan and outputs it to the pump operating device 12. The output plan 14 is executed by the pump operating device 12. The pump operating device 12 outputs a control output to the pump 6 based on the planned output 14 to adjust the number of operating pumps 6, the number of revolutions, and the like.

By the operation of the pump 6, a planned amount of clean water is supplied from the water purification plant to the water supply station, and the water level of the water supply station is kept at the planned water level.

(First Embodiment of the Invention) FIG. 2 is a block diagram showing a configuration example of a water supply amount planning support apparatus according to the first embodiment of the present invention, which is the same as the conventional apparatus shown in FIG. The same reference numerals are given to the parts and detailed description thereof will be omitted.

The water supply amount planning support device 11 includes a planned time calculation unit 21, a planned water supply amount calculation unit 22, a planned water supply amount correction unit 23, a planned water level calculation unit 24, and a planned value determination unit 25.
And the all-time plan end determination unit 26 and the database DB.

When the planning condition is input from the input device 13, the planned time calculating unit 21 calculates the planned time of each stage when making a water supply plan by the formula (1). In addition, 0 [m3 / h] is set to the planned water flow increment dqin used to calculate the planned water flow in the planned water flow calculation unit 22.
To set.

The planned water supply amount calculation unit 22 calculates the planned water supply amount value at the time obtained from the plan time calculation unit 21 using the equation (2).

The planned water supply amount correcting unit 23 corrects the planned water supply amount value obtained by the planned water supply amount calculating unit 22 in consideration of the water supply pump flow rate range. In other words, this planned water supply correction unit 23
Has registered the maximum flow rate that can be realized by each pump, determines whether the planned water flow rate calculated by the planned water flow rate calculation unit 22 is the flow rate that the pump can actually output, and if the flow rate cannot be output, it is set in advance. Modify the planned water flow to any flow rate within the possible flow range.

The planned water level calculator 24 is a database DB.
The predicted water distribution 3 that has been predicted in advance and the planned water supply amount corrected by the planned water supply correction unit 23 and the water level of the last distribution reservoir from the water level of the last distribution reservoir, that is, the planned water level at the planning time (3 ) Equation is used for calculation.

The planned value judging unit 25 is the planned water supply correction unit 2
It is determined whether or not the water supply amount corrected in 3 and the planned water level obtained by the planned water level calculation means 24 satisfy the constraint condition. When the planned water supply amount and the planned water level do not satisfy the constraint condition, that is, when the planned water amount deviates from the upper and lower limit values of the water supply station, the planned value determination unit 25 sets an arbitrary flow rate α to the planned water flow increment dqin so as to satisfy the constraint condition. [M3 / h] or -α [m3 / h] is set, and an instruction is given to perform the calculation again from the planned water supply amount calculation unit 22. Then, this operation is repeated until the recalculated planned water supply amount and planned water level satisfy the constraint condition.

The all-time plan end determination unit 26 determines whether or not the plan has been set up to all stages, that is, until the final planned time, and if not yet, returns to the plan time calculation unit 21 and proceeds to the next stage. When a plan is made up to the final plan time, all the created plans are output as the plan end output 14 (or the plan output 14).

Next, the operation of the water supply amount planning support device according to the embodiment of the present invention configured as described above will be described.

First, the initial water supply amount of stage 1 is set according to the plan preparation input. Furthermore, the planned water amount increment dqin is set to 0 [m3 / h] by the planned time calculation unit 21.
And the end time of stage 1, that is, the planned time is calculated.

Next, the planned water supply amount in the stage is calculated by the planned water supply amount calculating unit 22, and the calculated water supply amount correcting unit 23 is adjusted so that the calculated value matches the actual pump capacity.
Will be fixed in.

Further, the planned water level calculation unit 24 calculates the planned water level this time from the predicted water distribution 3, the corrected planned water supply amount, and the planned water level in the previous stage or in the initial state, and the planned value judging unit 25 calculates the planned water level. The quality of the values (water flow rate, water level) is judged.

When the planned value does not satisfy the constraint condition, the planned water supply amount increment is set, and the program returns to the planned water supply amount calculation unit 22.
The planned water supply amount is changed and corrected again, and the above calculation operation is repeated.

In this way, the plan for each stage is made, and if the plan is made until the final time, the plan is output.

As described above, the water supply amount planning support apparatus according to the embodiment of the present invention is provided with the planned water supply amount correcting unit 23, and if the planned water supply amount is not within the preset water supply amount range, Since the planned water flow rate is modified so as to match the actual pump capacity, it is possible to plan the water flow rate plan without setting the flow rate that the pump cannot output to the planned water flow rate value.

As described above, according to the water supply amount planning support device, the planned water supply amount can be established in consideration of the pump flow rate range.

(Second Embodiment of the Invention) In the conventional or first embodiment of the plan making, the plan water making amount is calculated by using the water sending amount as a parameter in making the plan, and the planned water level satisfies the constraint condition. I was deciding whether or not. The present embodiment is characterized in that the planned water supply amount is calculated using the number of pumps operating and the number of rotations of the pumps, instead of the water supply amount.

FIG. 3 is a block diagram showing a configuration example of a water supply amount planning support device according to the second embodiment of the present invention. The same parts as those in FIG. Here, only different parts will be described.

The water supply amount planning support device 11 is replaced with the planned time calculation unit 21, the planned water supply amount correction unit 23 and the planned value judgment unit 25 of the first embodiment, and the planned time calculation unit 31 and the pump operation number calculation. Unit 32 and pump speed calculation unit 33
A water supply amount calculation unit 34 and a planned value determination unit 35 are provided, and the configuration is similar to that of the first embodiment.

The planned time calculating unit 31 calculates the planned time of each stage by using the equation (1), and the pump operation change number dn used for calculating the planned water supply amount is 0.
[Unit], and the pump rotation speed increment dv is set to 0 [%].

That is, instead of the amount of water supply, the number of pumps operating and the number of revolutions are used as parameters for the change for calculating the planned amount of water supply.

The number-of-pumps-operation calculating unit 32 calculates the number of water-pumping pumps operating at the planned time obtained from the planned-time calculating unit 31 using the equation (5). In addition, initially, the number of pump operation changes dn is set to zero.

N (t) = n (t-dt) + dn (5) where, t: planning time [h] dt: time interval for planning [h] n (t): pump operation at time t Number of units [units] dn: Number of pump operation changes Pump rotation speed calculation unit 33 calculates each water supply pump rotation speed at the planned time obtained from the planned time calculation means from the equation (6).

V (t) = v (t−dt) + dv (6) where, t: planning time [h] dt: time interval for planning [h] v (t): pump rotation at time t Number [%] dv: The pump rotation speed incremental water supply amount calculation unit 34 calculates the water supply amount from the number of pump operation units obtained by the pump operation number calculation unit 32 and the pump rotation number obtained by the pump rotation number calculation unit 33. . That is, the water supply amount calculation unit 34 includes the pump 6 including a plurality of pumps.
The flow rate value at each rotation speed of each pump is set based on the operation record of each pump in. The water flow rate calculation unit 34 obtains the flow rate value of each pump to be operated based on the set value and the pump rotation speed, calculates the sum of the flow rate values of the respective pumps as the planned water flow rate, and calculates the result as the planned water level calculation unit 24.
Output to.

The planned value judging section 35 is connected to the planned water level calculating section 24.
It is determined whether the planned water level calculated in step 4 satisfies the constraint condition, and if it does not, the pump operation change number dn or the pump rotation speed increment dv is changed.

First, the planned value determining unit 35 sets the pump rotation speed increment dv to an arbitrary rotation speed β [%] or -β [%]. Here, β is a value that is appropriately set according to the amount of change in the amount of water supply accompanying the change in rotation speed and the characteristics of the pump.

Further, when there is no change allowance for the increase or decrease of the pump rotation speed increment dv from the rotation speed of each pump at that time, that is, when it is not possible to change the required water supply amount by changing the rotation speed of the pump, The operation change number dn is set to an arbitrary change number determined by the pump capacity and the like. In other words, the change in the number of operating vehicles is assumed to be completed after all the changes in the number of revolutions are completed.

As described above, the planned value determination unit 35 changes the pump rotation speed increment dv or the pump operation change number dn or both, and then executes the calculation from the pump operation number calculation 32 again to calculate the calculated planned water level. Re-determine
Then, the above operation is repeated until the constraint condition is satisfied.

In the water quantity planning support apparatus according to the embodiment of the present invention configured as described above, the calculation of the planned water quantity is performed based on the change in the number of pumps operating and the number of pump revolutions. The same operation as in the above embodiment is performed.

As described above, the water supply amount planning support device according to the embodiment of the present invention is provided with the pump operating number calculation unit 32 and the pump rotation number calculation unit 33, and within the range of the pump capacity, Since the rotation speed is directly designated, the same effect as in the above embodiment can be obtained.

Therefore, according to this water supply amount planning support device, the planned water supply amount is calculated from the pump characteristics, so that the flow rate that the pump cannot output is not set as the planned water supply amount.

(Third Embodiment of the Invention) In the second embodiment, it is necessary to change two parameters, that is, the number of pumps operating and the number of rotations of the pump. An explanation will be given of a water supply amount planning support device that can realize a plan creation process at high speed even when a plan is created by handling two parameters.

FIG. 4 is a block diagram showing a configuration example of a water supply amount planning support device according to the third embodiment of the present invention. The same parts as those in FIGS. It is omitted and only different parts will be described here.

The water supply amount planning support device 11 is provided with a pump rotation speed calculation unit 43 and a planned value judgment unit 45 in place of the pump rotation speed calculation unit 33 and the planned value judgment unit 35 of the second embodiment. Other than that, the configuration is similar to that of the second embodiment.

The pump rotation speed calculation unit 43 takes out the previous planned water level stored in the planned water level calculation unit 24 and uses this value to calculate the pump rotation speed. That is, the pump rotation speed calculation unit 43 is provided with a table of pump rotation speed increments dv corresponding to the planned water level, and uses the pump rotation speed increments dv corresponding to the previously fetched planned water levels. The pump rotation speed is calculated by the equation.

This table shows that when the planned water level is likely to exceed the upper limit value, the pump rotation speed is lowered, when the planned water level is likely to exceed the lower limit value, the pump rotation speed is increased, and the planned water level is increased. The pump rotation speed is set so as not to be changed when the distance from the upper and lower limits is exceeded.

The planned value judging unit 45 judges whether the planned water supply amount and the planned water level satisfy the constraint conditions, and if they do not, set only the pump operation change number dn to an arbitrary operation number, and The configuration is the same as the planned value determination unit 35 of the embodiment.

In the water quantity planning support device according to the embodiment of the present invention configured as described above, the pump rotation speed calculation unit 4 is based on the planned water level for which the change of the pump rotation speed was calculated last time.
In addition to being determined by a table preset to 3,
The same operation as in the above embodiment is performed.

As described above, the water supply amount planning support device according to the embodiment of the present invention is configured in the same manner as in the second embodiment, and the pump speed is determined from the last planned water level. In addition to the effects similar to those of the above-described embodiment, it is possible to make a plan at high speed.

(Fourth Embodiment of the Invention) Second and Third Embodiments
In the embodiment, the planned water supply amount is calculated by the water supply amount calculation unit 34 based on the number of pumps operating and the number of revolutions. However, in the present embodiment, the amount of water supply corresponding to the number of pump revolutions is registered in advance. A water supply volume planning support device that can realize the planning process even faster will be described.

FIG. 5 is a block diagram showing a configuration example of a water supply amount planning support device according to the fourth embodiment of the present invention. The same parts as those in FIGS. 2, 3 and 4 are designated by the same reference numerals. Description will be omitted and only different parts will be described here.

The water supply amount planning support device 11 has a planned time calculation unit 52 and a planned water supply amount selection unit instead of the planned time calculation unit 31, the pump rotation speed calculation unit 43 and the water supply amount calculation unit 34 of the third embodiment. 53 and a pump water supply amount setting unit 51 are provided, and the configuration is similar to that of the third embodiment.

The pump water supply amount setting unit 51 includes the input device 13
Set the amount of water used by the water pump in advance by setting the input from. That is, in consideration of the water supply capacity of each pump and the water supply capacity determined by the number of pumps operating, the corresponding water supply amount is set when the number of pumps operating and the planned water level are given.
Further, this setting may be such that, when the planned water level is given, each water supply amount can be selected corresponding to the number of operating pumps of a plurality of types.

For example, "When the planned water level is high and the number of pumps is 1, the flow rate is A [m3 / h]", "When the planned water level is low and the number of pumps is 2, the flow rate is Is B
[M3 / h] ”and the like. With the above settings, a table is created so that the planned water supply volume can be selected stepwise for the number of pumps operating and the planned water level.

The planned time calculation unit 52 sets only the initial number of pump operation changes dn used to set the planned water supply amount to 0 [unit], and the planned time calculation unit 31 of the third embodiment. It is similarly configured.

The planned water supply amount selection unit 53 calculates the number of pump operation units calculated by the equation (5) based on the number of pump operation changes dn designated by the planned time calculation unit 52 or the planned value determination unit 45, and further, The planned water supply amount is selected from the table based on the previous planned water level extracted from the planned water level calculation unit 24.

That is, the planned water supply amount selection unit 53 stores the table created in the pump water supply amount setting unit 51, that is, a table in which the planned water supply amount can be selected stepwise with respect to the number of pumps operating and the planned water level. ing.

This table shows that, for example, when the planned water level is likely to exceed the upper limit value, the planned water supply amount is reduced, and when the planned water level is likely to exceed the lower limit value, the planned water supply amount is increased. Is set to be

In the water supply amount planning support device according to the embodiment of the present invention configured as described above, the pump water supply amount setting unit 51 calculates the planned water supply amount based on the number of pumps operating and the previously calculated planned water level. In addition to being selected by the table set in step 3 and stored in the planned water supply amount selection unit 53, the operation is the same as in the case of the third embodiment.

As described above, the water supply amount planning support apparatus according to the embodiment of the present invention is provided with the pump water supply amount setting unit 51 and the planned water supply amount selecting unit 53, and based on the number of pumps operating and the previous planned water level. In addition, since the planned water supply amount is selected by the table, the same effect as in the case of the above-described embodiment can be obtained, and the plan can be made even faster.

(Fifth Embodiment of the Invention) As in the prior art, the water supply amount planning support device described in the first to fourth embodiments determines the planned water supply amount for each stage and sequentially performs the steps. Although the plan for all stages was made by the method of advancing the above, the water supply amount planning support device of the present embodiment is provided with means for reviewing the plans for all stages when an appropriate plan cannot be obtained.

FIG. 6 is a block diagram showing a configuration example of a water supply amount planning support device according to the fifth embodiment of the present invention. The same parts as those in FIG. 2 are designated by the same reference numerals and the description thereof will be omitted. Here, only different parts will be described.

The water supply amount planning support device 11 is provided with a water level determination unit 61 and a correction time calculation unit 62, and is constructed similarly to the case of the first embodiment.

The water level determination unit 61 determines whether or not the planned water level has reached a preset water level at a preset time for the plan determined to satisfy the constraint conditions by the planned site determination unit 25, and the set water level is set. If so, the all-time schedule end determination unit 26 is notified.

Further, the water level determination section 61 compares the planned water level calculated by the planned water level calculation section 24 with the preset set water level if the planned time comes at the time arbitrarily set by the operator, If it is not within the allowable range ± β [m] of the set value, an arbitrary set flow rate α [m3 / h] or -α [m3 / h] is set as the planned water supply amount increment dqin, and the correction time calculation unit 62 is set. Send the result to.

The correction time calculation unit 62 calculates the time of correction to adjust the planned water level to an arbitrary water level.

That is, the correction time calculation unit 62 calculates the planned time at which the planned water supply amount should be corrected in order to match the planned water level with the set water level. First, in order to change the planned water supply amount at the current planned time, the planned time is returned to the planned water supply amount calculation unit 22 as the current value. As a result of this recalculation, if the new planned water level does not pass in the vicinity of the set water level, the planned time is returned to the previous time, that is, the planned time of all stages, and recalculated from the planned water flow rate calculation unit 22 again.

The corrected time calculation unit 62, until the planned water level passes near the set water level due to the recalculation from the planned water supply amount calculation unit 22 and the water level determination unit 61 notifies the all-time plan end determination unit 26 to that effect, This recalculation of the planned time, that is, the returning operation to all stages is repeated.

The water quantity planning support apparatus according to the embodiment of the present invention configured as described above is the same as the first embodiment except for the processing of water level determination and correction by the water level determination unit 61 and the correction time calculation unit 62. The same operation as in the case of the above form.

Further, the water level determination unit 61 and the correction time calculation unit 6
Plan creation by water level determination and correction processing according to 2 will be described with reference to FIG. 7.

FIG. 7 is a diagram for explaining a plan making operation by the water supply amount planning support device of this embodiment.

The figure (a) shows the planned water supply amount at each stage, and the figure (b) shows the change of the water level at each stage.

First, as the set water level, as shown in FIG.
Consider a case where the set water level a is set at the fourth scheduled time as shown in (b).

At this time, the planned water supply amount is not changed in stage 1 and stage 2 as shown by the thick line in FIG. 7 (a), and the flow rate is increased at the third planned time, that is, stage 3, In 4 as well, the flow rate changes at the stage 3 time.

As a result, the planned water level changes as shown by the thick line in FIG. 7 (b). This will change the planned water level to the planned time 4
The set water level a cannot be matched at the time.

Therefore, the water level determination unit 61 increases the amount of water to be sent, and the correction time calculation unit 62 first causes the stage 4 to recalculate the planned water level.

As a result, the planned water level changes at stage 4 as shown by the broken line S4a, and the set water level a is satisfied at the 4th hour of the planned time.

Next, consider the case where is set as shown in FIG. 7B under the same conditions.

First, up to the point where the planned water level changes as shown by the thick line in FIG. 7 (b), it is the same as the above case.

Next, as in the above case, the recalculation of the planned water level is executed in stage 4, and the result is the broken line S
In 4a, the set water level b cannot be passed through at the 4th hour of the planned time.

Therefore, the correction time calculation unit 62 returns to the stage 3 and executes the recalculation of the planned water level with the increased water supply amount.

Although not particularly shown in FIG. 7B,
In this case, it is assumed that even if the recalculation of the planned water level with the increased water supply amount is executed in stages 3 and 4, the set water level b cannot be passed at the 4th hour of the planned time.

In this case, the water level determination unit 61 tries to further increase the water supply amount, but if it is impossible to further increase the water supply amount in the stage 3 as shown by the broken line S3, the correction time calculation unit 62 Further, the planned time is returned to the stage 2, and the recalculation of the planned water level with the increased water supply is executed.

Further, the water level determination unit 61 and the correction time calculation unit 62 increase the flow rate in the stage 3 as well as the above-mentioned operation. After all, the planned water supply amount in each stage is the solid line S2s shown in FIG. 7A. , S3s, S4s.

Therefore, the planned water level changes on stage 4 as indicated by broken lines S2b, S3b, S4b, and the planned time 4
At the time point, the allowable range of the set water level b is satisfied.

In other words, in this case, the plan from the stage 2 is rebuilt while satisfying the set condition while trial and error.

As described above, the water supply amount planning support device according to the embodiment of the present invention is configured in the same manner as in the case of the first embodiment, and additionally includes the water level determination unit 61 and the correction time calculation unit 62. It was established and it was judged whether the planned water level was the set water level, and when the planned water level was changed at the same stage, when the planned water level could not reach the set water level, the stage for creating the plan was returned to the previous stage. In addition to the same effects as in the case of the above embodiment, it is possible to create a plan in which the planned water level passes through the arbitrary water level at an arbitrary time.

(Sixth Embodiment of the Invention) A water quantity planning support device of this embodiment is a combination of the water quantity planning support devices of the second and fifth embodiments.

FIG. 8 is a block diagram showing a configuration example of a water supply amount planning support device according to a sixth embodiment of the present invention. The same parts as those in FIGS. It is omitted and only different parts will be described here.

This water flow rate planning support device 11 is provided with a water level determination unit 61 and a correction time calculation unit 62 which are configured similarly to the case of the fifth embodiment, and in the case of the second embodiment. Is configured similarly to.

In the water quantity planning support apparatus according to the embodiment of the present invention configured as described above, the water level determination and correction processing by the water level determination unit 61 and the correction time calculation unit 62 are the same as those in the fifth embodiment. In addition to the same operation as the case, the operation is similar to that of the second embodiment.

As described above, the water quantity planning support device according to the embodiment of the present invention is configured in the same manner as in the case of the second embodiment, and the water level determination similar to that of the fifth embodiment. Since the unit 61 and the correction time calculation unit 62 are provided, the same effect as in the second embodiment can be obtained, and a plan in which the planned water level passes the arbitrary water level at an arbitrary time can be created.

(Seventh Embodiment of the Invention) A water quantity planning support device of this embodiment is a combination of the water quantity planning support devices of the third and fifth embodiments.

FIG. 9 is a block diagram showing a configuration example of a water supply amount planning support device according to the seventh embodiment of the present invention. The same parts as those in FIGS. It is omitted and only different parts will be described here.

The water supply amount planning support device 11 is provided with a water level determination unit 61 and a correction time calculation unit 62 which are configured similarly to the case of the fifth embodiment, and in the case of the third embodiment. Is configured similarly to.

In the water quantity planning support apparatus according to the embodiment of the present invention configured as described above, the water level determination and correction processing by the water level determination unit 61 and the correction time calculation unit 62 are the same as those in the fifth embodiment. In addition to the same operation as the case, the operation is the same as in the case of the third embodiment.

As described above, the water supply amount planning support device according to the embodiment of the present invention is configured in the same manner as in the case of the third embodiment, and the same water level determination as in the fifth embodiment. Since the unit 61 and the correction time calculation unit 62 are provided, the same effect as that of the third embodiment can be obtained, and a plan can be created such that the planned water level passes through the arbitrary water level at an arbitrary time.

(Eighth Embodiment of the Invention) A water quantity planning support device of this embodiment is a combination of the water quantity planning support devices of the fourth and fifth embodiments.

FIG. 10 is a block diagram showing an example of the configuration of the water supply amount planning support device according to the eighth embodiment of the present invention.
The same parts as those in FIG. 5 and FIG. 6 are designated by the same reference numerals and the description thereof will be omitted.

This water flow rate planning support device 11 is provided with a water level determination unit 61 and a correction time calculation unit 62 which are configured similarly to the case of the fifth embodiment, and in the case of the fourth embodiment. Is configured similarly to.

In the water quantity planning support apparatus according to the embodiment of the present invention configured as described above, the water level determination and correction processing by the water level determination unit 61 and the correction time calculation unit 62 are the same as those in the fifth embodiment. Besides the same operation as the case, the operation is similar to that of the fourth embodiment.

As described above, the water quantity planning support device according to the embodiment of the present invention is configured in the same manner as in the case of the fourth embodiment, and the water level determination similar to that of the fifth embodiment. Since the unit 61 and the correction time calculation unit 62 are provided, the same effect as that of the fourth embodiment can be obtained, and a plan can be created such that the planned water level passes through the arbitrary water level at an arbitrary time.

(Ninth Embodiment of the Invention) In this embodiment, a plan prepared by using any one of the water quantity planning support devices of the first to eighth embodiments is used during actual water supply execution. A water supply plan support device that can be modified and a water supply control system including the water supply plan support device will be described.

FIG. 11 is a block diagram showing a configuration example of a water supply control system according to a ninth embodiment of the present invention. The same parts as those in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted. Only different parts will be described.

The water supply control system 10 includes the first to eighth
Of the water quantity planning support device according to the embodiment of the present invention, a water quantity plan preparation unit 11, a plan execution unit 12 which is a pump operation device, an actual water quantity judgment unit 15, and a predicted water quantity correction unit 1
6 and 6. The water supply volume planning support device according to the present embodiment includes a water supply volume planning unit 11, an actual water distribution amount determination unit 15, and a predicted water distribution correction unit 16.

The actual water distribution amount determining unit 15 determines whether or not to perform re-planning based on the difference between the actual water distribution amount and the planned water distribution amount. The actual water distribution amount determination unit 15 calculates the cumulative error between the actual water distribution amount, which is the actual demand for clean water, and the initially predicted water distribution amount 3, using the equation (7). It is determined whether to correct the predicted water distribution 3 in the database DB based on the magnitude of this accumulated error.
That is, if the cumulative error is ± α [m3], the predicted water distribution amount 3 is corrected, and if not, it is determined not to be corrected, and the result is predicted water distribution amount correction unit 16 and plan execution unit 1
Notify 2.

[0175]

[Equation 1]

Here, errq: cumulative error [m3] realqout (t): actual water distribution [m3 /
h] qout (t): predicted water distribution [m3 / h] at time t: real time [h] predicted water distribution correction unit 16 modifies the predicted water distribution 3 in consideration of the actual water distribution. In the predicted water distribution correction unit 16, (8)
Database DB in water flow rate planning section 11 using formula
The forecasted water distribution 3 is corrected and the water transmission rate plan making unit 11 is notified that the plan is to be re-executed.

[0177]

[Equation 2]

Qout '(t): Corrected predicted water distribution [m3 / h] at time t The operation of the water supply control system according to the embodiment of the present invention configured as above will be described.

First, a water supply plan is prepared by the water supply plan preparation unit 11 which is composed of any of the water supply plan support devices of the first to eighth embodiments, and a pump control output is outputted from the plan execution unit 12 to the pump. Is driven.

However, the plan was created based on the predicted water distribution 3, and the predicted water distribution does not always coincide with the actual water distribution, which is the actual water distribution by the customer from the water supply station 5. do not do. Therefore, if the predicted water distribution and the actual water distribution differ, the actual water level will deviate from the planned water level.

Then, first, the actual water distribution amount is measured at the water supply station 5, and the value is input to the actual water distribution amount determining unit 15.

Whether the actual water distribution amount judgment unit 15 calculates the cumulative error between the actual water distribution amount and the previously predicted predicted water distribution amount by the equation (7), and corrects the predicted water distribution amount 3 in the database DB. Is determined.

When the predicted water distribution amount is not changed, the plan execution unit 12 is notified to that effect and the plan execution is continued.

On the other hand, in the case of changing the predicted water distribution amount, the predicted water distribution amount corrected by the predicted water distribution correction unit 16 is calculated and input to the water supply amount plan preparation unit 11, and re-planning is notified. To be done.

Then, the water supply volume planning unit 11 uses the corrected predicted water distribution volume to restore the water supply plan again so as to satisfy the constraint conditions, and the result is reconstructed by the plan execution unit 12
Is output to.

The plan execution unit 12 operates the pump using the new plan and executes the plan corresponding to the actual water distribution amount. As a result, the water level at the water supply station 5 is maintained so as not to exceed the upper and lower limit values.

As described above, the water quantity planning support device according to the embodiment of the present invention includes the same water quantity planning unit 11 as any of the water quantity planning support devices of the first to eighth embodiments. Since the actual water distribution determination unit 15 and the predicted water distribution correction unit 16 are provided, when the actual water distribution value and the planned value at the water supply station 5 are different from each other, the predicted water distribution is corrected and the water supply plan is replanned. , It is possible to satisfy the constraint condition.

Further, since the water supply control system according to the embodiment of the present invention is such that the water supply amount planning support device and the pump operation device are combined, the pump operation is performed so that the constraint condition is always satisfied by re-planning. It can be performed.

(Tenth Embodiment of the Invention) In this embodiment, in the water supply control system of the ninth embodiment, the water supply station 5 judges whether to carry out re-planning due to the deviation between the planned value and the actual value.
The actual water level is used.

FIG. 12 is a block diagram showing a configuration example of the water supply control system according to the tenth embodiment of the present invention.
11, the same parts as those in FIG.
Here, only different parts will be described.

The water supply control system 10 has the same construction as that of the ninth embodiment except that the actual water level determination unit 17 is provided instead of the actual water distribution amount determination unit 15. In addition,
The water supply volume planning support device according to the present embodiment includes a water supply volume planning unit 11, an actual water level determination unit 17, and a predicted water distribution correction unit 16.

The actual water level determination unit 17 determines whether or not to perform re-planning based on the state of deviation between the actual water level and the planned water level.
Specifically, the actual water level, the planned water level, and the water level error are calculated by the equation (9), and it is determined whether or not the predicted water distribution amount is corrected by the water level error. That is, if the water level error is ± α [m] or more,
The predicted water distribution amount is corrected, and if not, it is determined not to be corrected, and the result is notified to the predicted water distribution correction unit 16 and the plan execution unit 12.

Errh = realh (realt) -h (realt) (9) Here, errh: Water level error [m] realh (t): Actual water level at time t [m] h (t): Plan at time t Water level [m] realt: current time [h] The water supply control system according to the embodiment of the present invention configured as described above uses the actual water level as a criterion for re-planning, and the ninth embodiment. Works the same as. As described above, the water quantity planning support device according to the embodiment of the present invention is similar to any of the water quantity planning support devices of the first to eighth embodiments, and the water quantity planning unit 11 and the actual water level determination. The water supply station 5 is equipped with the part 17 and the predicted water distribution correction part 16.
When the actual water level value and the planned value in
The forecast water distribution can be modified and the water transmission plan re-planned to meet the constraints.

Further, since the water supply control system according to the embodiment of the present invention is such that the water supply amount planning support device and the pump operation device are combined, the pump operation is performed so that the constraint condition is always satisfied by re-planning. It can be performed.

(Eleventh Embodiment of the Invention) This embodiment is the same as the water supply control system of the tenth embodiment.
The water level up to several hours ahead is predicted from the actual water level, the planned water supply amount, and the predicted water distribution amount, and whether or not to re-plan is determined based on whether or not the constraint conditions are satisfied at that time.

FIG. 13 is a block diagram showing a configuration example of the water supply control system according to the eleventh embodiment of the present invention.
12, the same parts as those in FIG.
Here, only different parts will be described.

The water supply control system 10 has the same construction as that of the tenth embodiment except that the actual water level prediction determining section 18 is provided instead of the actual water level determining section 17. The water supply volume planning support device according to the present embodiment includes a water supply volume planning unit 11, an actual water level prediction determination unit 18, and a predicted water distribution correction unit 16.

The actual water level prediction judgment unit 18 predicts the actual water level up to several hours ahead from the actual water level, the planned water supply amount, and the predicted water distribution amount, and the predicted water distribution amount is determined whether or not the constraint condition is satisfied several hours ahead. Or not, that is, whether to re-plan. Prediction of the actual water level up to several hours ahead is performed by modifying the predicted water distribution using equation (8) and using the modified predicted water distribution, planned water supply, and current water level.
The water level is calculated using equation (3).

The actual water level prediction determination unit 18 notifies the plan execution unit 12 when the re-plan is not performed, and notifies the predicted water distribution correction unit 16 when the re-plan is performed.

The water supply control system according to the embodiment of the present invention configured as described above uses the actual water level prediction value several hours ahead based on the actual water level as the criterion for re-planning, and the tenth The operation is similar to that of the above embodiment.

As described above, the water flow rate planning support device according to the embodiment of the present invention is the same as any of the water flow rate planning support devices of the first to eighth embodiments described above. Actual water level prediction determination unit 18 and predicted water distribution correction unit 16
Since the above has been provided, when the actual water level predicted value up to several hours ahead based on the actual water level value at the water supply station 5 and the planned water level deviate, the predicted water distribution is corrected and the water supply plan is re-planned You can meet the conditions.

Further, since the water supply control system according to the embodiment of the present invention combines such a water supply amount planning support device and the pump operation device, re-planning is performed to ensure safer and more reliable constraint conditions. The pump can be operated to satisfy the above.

[0203]

As described above in detail, according to the present invention, it is possible to provide a water quantity planning support device capable of planning a water quantity plan without setting a flow rate that cannot be pumped by a water quantity plan value. .

Further, according to the present invention, it is possible to provide a water flow rate planning support device capable of preparing a plan such that the planned water level passes through the arbitrary water level at an arbitrary time.

Further, according to the present invention, even if the planned value and the actual value are deviated, the water supply plan value can be corrected and the water supply plan support device and the water supply can be prepared so that the water supply plan can be satisfied so as to satisfy the constraint condition. A control system can be provided.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration example of a water supply control system having a water supply amount planning support device according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration example of a water supply amount planning support device according to the first embodiment of the present invention.

FIG. 3 is a block diagram showing a configuration example of a water supply amount planning support device according to a second embodiment of the present invention.

FIG. 4 is a block diagram showing a configuration example of a water supply amount planning support device according to a third embodiment of the present invention.

FIG. 5 is a block diagram showing a configuration example of a water supply amount planning support device according to a fourth embodiment of the present invention.

FIG. 6 is a block diagram showing a configuration example of a water supply amount planning support device according to a fifth embodiment of the present invention.

FIG. 7 is a view for explaining a plan creating operation by the water supply amount planning support device according to the embodiment.

FIG. 8 is a block diagram showing a configuration example of a water supply amount planning support device according to a sixth embodiment of the present invention.

FIG. 9 is a block diagram showing a configuration example of a water supply amount planning support device according to a seventh embodiment of the present invention.

FIG. 10 is a block diagram showing a configuration example of a water supply amount planning support device according to an eighth embodiment of the present invention.

FIG. 11 is a block diagram showing a configuration example of a water supply control system according to a ninth embodiment of the present invention.

FIG. 12 is a block diagram showing a configuration example of a water supply control system according to a tenth embodiment of the present invention.

FIG. 13 is a block diagram showing a configuration example of a water supply control system according to an eleventh embodiment of the present invention.

FIG. 14 is an overall view of a system showing a relationship between water supply from a water purification plant to a water supply station and creation of a water supply amount plan.

FIG. 15 is a block diagram showing a process of a conventional water supply amount planning support device.

FIG. 16 is a diagram showing an example of creating a plan by a conventional water supply amount planning support device.

[Explanation of symbols] 3 ... Predicted water distribution 4 ... Water purification plant 5 ... Water station 6 ... Pump 10 ... Water supply control system 11 ... Water supply plan support device 12 ... Pump operating device 15 ... Actual water distribution judgment unit 16 ... Forecast water distribution correction unit 17 ... Actual water level determination unit 18 ... Actual water level prediction judgment unit 21 ... Planned time calculation unit 22 ... Planned water supply calculation unit 23 ... Planned water supply correction unit 24 ... Plan water level calculator 25 ... Plan value determination unit 26 ... All-time plan end determination unit 32 ... Pump operation number calculation unit 33 ... Pump speed calculation unit 51 ... Pump water flow rate setting unit 53 ... Planned water supply selection section 61 ... Water level determination unit 62 ... Correction time calculation unit DB ... Database

─────────────────────────────────────────────────── --- Continuation of the front page (72) Ikuo Takahashi Inventor Ikuo Takahashi 1-1-1, Shibaura, Minato-ku, Tokyo Inside Toshiba Headquarters Office (56) Reference JP-A-8-128078 (JP, A) JP 51-109145 (JP, A) JP 5-148864 (JP, A) JP 8-95645 (JP, A) JP 6-200896 (JP, A) JP 3-145582 (JP , A) JP 55-131813 (JP, A) JP 56-142943 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) E03B 1/00 E03B 3/00 G01F 15/075

Claims (10)

(57) [Claims] 1. A water supply amount planning support device for supporting the preparation of a water supply plan for supplying water from a water purification plant to a water supply station by at least one water supply pump, wherein the water level at the water supply station is within the upper and lower limit water levels. , A planned time calculating means for calculating a planned time as a time point for judging whether or not this constraint condition is satisfied, and a planned water supply quantity as a predetermined condition as the water supply quantity between the planned times obtained from the planned time calculation means. If the planned water supply amount calculating means calculated from the above, and the planned water supply amount obtained by the planned water supply amount calculating means exceeds the water supply capacity of the water supply pump under the predetermined conditions, within the water supply capacity range of the water supply pump And a means for calculating a planned water level as the water level predicted at the planned time, the planned water quantity correcting means for correcting the planned water quantity so that Based on the predicted water distribution predicted in advance, the planned water quantity corrected by the planned water quantity correction means and the planned water level at the previous planned time, a planned water level calculating means for calculating the planned water level at the current planned time, and It is characterized by further comprising: plan value determining means for determining whether or not the planned water level obtained by the planned water level calculating means satisfies the constraint condition, and changing the predetermined condition if the constraint condition is not satisfied. Water supply planning support device. 2. A water supply amount planning support device for supporting the preparation of a water supply plan for supplying water from a water purification plant to a water supply station by at least one water supply pump, wherein the water level at the water supply station is within the upper and lower limit water levels. , A planned time calculating means for calculating a planned time as a time point for judging whether or not this constraint condition is satisfied, and calculating the number of operating water pumps between the planned times obtained from the planned time calculating means from a predetermined condition Pump operating number calculating means, a pump rotation number calculating means for calculating a water pump rotation number between the planned times obtained from the planning time calculating means from a predetermined condition, and a pump obtained by the pump operating number calculating means A planned water supply amount calculation means for calculating a planned water supply amount as a water supply amount between planned times from the number of operating machines and the pump rotation speed obtained by the pump speed calculation means; A means for calculating a planned water level as the water level predicted at a time, which is a predicted water distribution quantity predicted in advance at the water supply station, a planned water quantity calculated by the planned water quantity calculation means, and a previous planned time. Based on the planned water level in
The planned water level calculating means for calculating the planned water level at the current planned time, and it is determined whether or not the planned water level obtained by the planned water level calculating means satisfies the constraint conditions. A water quantity planning support device comprising: a planned value determining means for changing the predetermined condition within a pump capacity range. 3. The water supply volume planning support device, wherein the pump rotation speed calculation means calculates the water supply pump rotation speed based on a planned water level at the last planned time. 4. A water quantity planning support device for supporting the preparation of a water supply plan for supplying water from a water purification plant to a water supply station by using at least one water supply pump, wherein the water level at the water supply station is within the upper and lower limit water levels. A planned time calculating means for calculating a planned time as a time point for determining whether or not this constraint condition is satisfied, and at least one pump condition corresponding to the planned water level as the water level predicted at the planned time, A pump water supply amount setting means for setting a planned water supply amount as a water supply amount between the planned times corresponding to each pump condition within the range of the water supply capacity of the water supply pump, and the number of pumps operating as part of the pump condition The pump condition is fixed based on the condition and the planned water level at the previous planned time, and based on this fixed pump condition, this time set in the pump water supply amount setting means. Based on the planned water supply amount selecting means for selecting the planned water supply amount, the predicted water distribution amount predicted in advance at the water supply station, the selected planned water supply amount and the planned water level at the previous planned time, at the current planned time. And a plan water level calculating means for calculating the plan water level of the above, and it is determined whether or not the plan water level obtained by the plan water level calculating means satisfies the constraint condition, and if it does not, the pump operating number condition is changed. And a planned value determining means for controlling the water supply amount. 5. A water level determination means for determining whether or not the planned water level at the current planned time is within a predetermined range of set water levels at a preset time, and the planned water level at the current planned time is When the set water level is not within the predetermined range, the plan value determining means changes the condition to be changed when the constraint condition is not satisfied, and the condition changing means re-plans with the condition changed by the condition changing means. When the current planned water level does not reach the set water level, the planned time to be calculated by the planned time calculating means is returned to the previous planned time, and the correction time calculating means to redo from the previous calculation of the planned water supply amount. The water supply amount planning support device according to any one of claims 1 to 4, further comprising: 6. An actual distribution amount determination means for determining whether or not to re-plan the water transmission plan based on a cumulative error between the actual distribution amount which is the actual distribution amount at the water supply station and the predicted distribution amount. The water distribution plan support according to any one of claims 1 to 5, further comprising: a predicted water distribution correction unit that corrects a predicted water distribution used for the re-planning based on the actual water distribution. apparatus. 7. An actual water level determination means for determining whether or not to re-plan the water supply plan based on an error between the actual water level at the water supply station and the planned water level, and at the water supply station. The predicted water distribution correction means for correcting the predicted water distribution used for the re-planning based on the actual water distribution which is the actual water distribution, and the predicted water distribution correction means according to any one of claims 1 to 5. Water supply planning support device. 8. Based on the actual water level that is the actual water level at the water supply station, the planned water supply amount, and the predicted water distribution amount,
Calculate the predicted water level up to several hours ahead at the water supply station,
Depending on whether or not this predicted water level satisfies the constraint conditions, the actual water level prediction judgment means for judging whether or not to re-plan the water transmission plan, and the actual water distribution amount which is the actual water distribution amount at the water supply station. The water distribution plan support device according to any one of claims 1 to 5, further comprising: a predicted water distribution correction means for correcting the predicted water distribution used for the re-planning. 9. The water supply volume planning support device according to claim 1, and a control signal for controlling the operating state of the at least one water supply pump based on the water supply plan. A water supply control system comprising: a pump operating means for outputting. 10. A water supply amount planning support device for supporting the preparation of a water supply plan for supplying water from a water purification plant to a water supply station by at least one water supply pump, wherein a planned water supply amount as a water supply amount during a predetermined time is from a predetermined condition. A plan water flow calculation means for calculating, and a plan for correcting the planned water flow so that the planned water flow exceeds the water delivery capacity of the water delivery pump under the predetermined condition, so as to be within the range of the water delivery capacity. A water flow rate planning support device comprising a water flow rate correction means.