JP6250176B2 - Plant system information creation device - Google Patents

Description

  The present invention relates to a plant system information creation device that creates information about a pipeline system for a water plant including a plurality of water storage facilities and a plurality of pipelines connecting them.

  The waterworks plant is composed of a plurality of facilities arranged in a wide range. Drinking water produced at the water treatment plant is stored in a storage tank (also called a reservoir or reservoir) of the storage facility, and then supplied to the city through the distribution pipeline network. Distributing water to distant places and high places is realized by water delivery through multiple reservoirs. In a large-scale plant, it is necessary to send water from a reservoir farthest to the city area to be supplied to the city area. There are also cases where it goes through more than one distribution reservoir.

  The sewerage plant is also composed of a plurality of facilities arranged in a wide range, like the waterworks plant. Wastewater and rainwater discharged from the urban area are sent to a sewage treatment plant through a plurality of pump facilities through a sewer network. When monitoring and controlling multiple facilities in the water and sewage plant as described above, a central supervisory control panel (central supervisory control device) is installed in the central supervisory control room, and information related to supervisory control operations is stored in the database. However, a method of monitoring and controlling the trend of the entire plant in many cases is often adopted.

  Now, the water and sewage pipes are designed in consideration of topographical features, demographic changes on the ground, safety as a plant, and the like. For this reason, new pipelines may be laid or existing pipelines may be suspended due to the influence of management decisions such as construction of new residential areas and disaster countermeasures. In particular, when a large-scale construction that affects the entire water and sewage plant, such as a change in the large-diameter pipeline or the consolidation of facilities, the operation method of the water and sewage pipeline itself may be affected.

  When large-scale constructions occur in the pipelines in this way, the central monitoring control panel and various operation support devices attached to the central monitoring control panel are available to deal with the new pipeline system (pipe route). In the system, the internal parameters and various settings of each water storage facility are updated.

  However, in order to update the internal parameters or the like, it is necessary to shut down the operating system or switch to the maintenance mode, which temporarily causes a situation where the monitoring operation is interrupted. For this reason, it is desirable to update the above-described internal parameters and the like in as short a time as possible.

  However, updating of the internal parameters and the like in the central monitoring control panel and the operation support device is performed by manually changing the value while the operator or the designer independently examines based on knowledge. For this reason, the update operation cannot be performed by a person who does not have specialized knowledge, and there is a problem that the update operation takes a load and time.

  In order to solve this problem, methods for supporting updating of internal parameters and the like have been studied from the past. For example, in the technique disclosed in Patent Document 1, it is possible for a computer to automatically perform an operation for determining an internal parameter value, thereby reducing a work load required for an operation for updating an internal parameter or the like. In particular, since the calculation method necessary for determining the internal parameter value of each device is registered as a software object, there is an advantage that it can be applied to any plant configuration.

JP 2002-91504 A

  The above-described update operation of internal parameters and the like is generally used in the system for selecting a water storage facility whose internal parameters are to be updated (hereinafter referred to as “first stage operation”) and for the selected water storage facility. This is a two-stage operation of determining the internal parameter value (hereinafter referred to as “second-stage operation”).

  For example, when developing a demand forecast system for reservoirs, there are few cases in which demand forecasts are made for all reservoirs to be monitored, and some major reservoirs that serve as the foundation of reservoir operation In many cases, the demand forecast is made only for. For this reason, an operator and a designer will perform the work of the 1st step, ie, the selection work of the main distribution reservoirs based on various information. However, the first stage work can be performed after understanding various design drawings and knowing which of the plurality of pipes is mainly used. For this reason, there has been a problem that the work of the first stage is a heavy load when the update work and design work of internal parameters and the like are performed.

  In the technique of Patent Document 1, it is possible to reduce the work load of the second stage, but it is not intended to reduce the work of the first stage. For this reason, when construction works that affect the operation of the entire plant, such as the addition of large-diameter pipes, users such as operators and designers still perform the first stage work, that is, the main work. It was necessary to select a reservoir.

  Therefore, the present invention has been made in view of the above-described problems, and an object thereof is to provide a technique that can reduce a user's work load.

  The plant system information creation device according to the present invention is a plant system information creation device that creates information about a pipeline system for a water plant including a plurality of water storage facilities and a plurality of pipelines connecting them, A monitoring database that accumulates sensor measurement information at each time measured by a sensor of a water plant, and the water storage amount at each time of the plurality of water storage facilities, from the sensor measurement information accumulated in the monitoring database, and the plurality An analytical data extraction unit for extracting analytical data including the inflow and outflow amount at each time of the pipe of the pipe, and a change in the water storage amount at each time of the plurality of water storage facilities is calculated based on the analytical data And calculating a correlation between the water storage facility and the pipe connected to the water storage facility based on the change in the water storage amount and the inflow / outflow amount. Seki based on the relationship, and a relationship analysis unit for estimating a conduit that is used among the plurality of conduits. The relationship analysis unit is a combination in which the correlation is stronger than other combinations when there are a plurality of combinations of the used pipeline and the water storage facility connected to the used pipeline. It is estimated that the used pipe line and the water storage facility are connected on a one-to-one basis.

  According to the present invention, based on the sensor measurement information accumulated in the monitoring database, a used pipeline is estimated from the plurality of pipelines. Therefore, the user's workload can be reduced.

  The objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description and the accompanying drawings.

It is a block diagram which shows the structure of the plant system | strain drawing production apparatus which concerns on Embodiment 1. FIG. It is a figure which shows typically the monitoring data which concern on Embodiment 1. FIG. It is a figure which shows typically an example of the pipeline system of the water and sewage plant which concerns on Embodiment 1. FIG. It is a figure which shows typically an example of the pipeline system drawing which concerns on Embodiment 1. FIG. It is a block diagram which shows the structure of the plant system drawing production apparatus which concerns on Embodiment 2. FIG. It is a block diagram which shows the structure of the plant system | strain drawing production apparatus which concerns on Embodiment 3. FIG. It is a block diagram which shows the structure of the plant system drawing creation apparatus which concerns on Embodiment 4. FIG. It is a block diagram which shows the structure of the plant system | strain drawing production apparatus which concerns on Embodiment 5. FIG.

<Embodiment 1>
FIG. 1 is a block diagram showing a configuration of a plant system drawing creation apparatus to which the plant system information creation apparatus according to Embodiment 1 of the present invention is applied. The plant system drawing creation apparatus in FIG. 1 includes a monitoring control device 111, an input / output device 112, a monitoring database 113, an analysis data extraction device 121, a relationship analysis device 122, and a screen creation device 123. Yes. Among these, the monitoring control device 111, the input / output device 112, and the monitoring database 113 correspond to a plant monitoring control device that has been conventionally used.

  First, an outline of the plant system drawing creation apparatus will be described.

  The monitoring control device 111 is connected to a plant 101 that is a plant system and device to be monitored by the monitoring control device 111. The plant 101 is a water plant including a plurality of water storage facilities and a plurality of pipes connecting them.

  Hereinafter, the plant 101 is demonstrated as what is a water and sewage plant which is a kind of water plant. However, the present invention is not limited to this, and the plant 101 may be, for example, a water supply plant or a sewerage plant. In the following description, the plant 101 may be referred to as a “water and sewage plant 101”.

  The monitoring control device 111 acquires sensor measurement information such as various measurement signals measured by the sensor from the sensors attached (arranged) to each facility of the plant 101, and the sensor measurement information is obtained in the central monitoring control device. collect. Usually, the collected sensor measurement information is recorded in the monitoring database 113 as monitoring data, and is used for searching past cases, analyzing work, and the like.

  The plant system drawing creating apparatus according to the first embodiment displays information related to the entire plant 101 on the input / output device 112 based on the monitoring data recorded in the monitoring database 113. Thereby, the user can grasp the trend of the entire plant 101.

  In addition, the plant system drawing creation apparatus according to the first embodiment creates information related to the pipeline system for the plant 101 based on the monitoring data. Here, the plant system drawing creation device estimates a pipeline used from a plurality of pipelines based on the monitoring data, and creates a pipeline diagram showing the pipeline system that is the pipeline system. To do. The plant system drawing creation apparatus can display the created pipeline system drawing on the input / output device 112. Thereby, since the user can know which pipelines and pipelines are mainly used, it becomes possible to easily select main water storage facilities (reservoir).

  Next, each component of the plant system drawing creation device will be described in detail.

  The monitoring control device 111 collects sensor measurement information (measurement signal) from the sensors of the plant 101 and records (accumulates) the sensor measurement information as monitoring data in the monitoring database 113. In addition, the monitoring control device 111 records (accumulates) control information (control signal) input by the user to the input / output device 112 as monitoring data in the monitoring database 113.

  The monitoring control device 111 causes the input / output device 112 to display monitoring data recorded (accumulated) in the monitoring database 113. Furthermore, the monitoring control apparatus 111 controls the equipment of the plant 101 by transmitting the control information to the control apparatus installed in the plant 101 when the control information is acquired. Thus, the user can remotely operate the plant 101 by operating the input / output device 112.

  The monitoring database 113 accumulates sensor measurement information from the water and sewage plant 101 and control information for the water and sewage plant 101 input by the user as monitoring data. Each sensor measurement information (value of each measurement signal) collected from the plant 101 is accumulated in the monitoring database 113 for each preset unit time interval.

  FIG. 2 is a diagram schematically showing monitoring data stored in the monitoring database 113 according to the first embodiment. In the example of FIG. 2, each sensor measurement information is accumulated for every hour unit. The time information 201 indicates the time when each sensor measurement information is collected, and the time label 202 indicates a location where the time information 201 is stored in the monitoring database 113. The measurement value 211 indicates each sensor measurement information, and the measurement value label 212 indicates a location where the measurement value 211 is stored in the monitoring database 113. The measurement value unit 213 indicates a unit system related to the physical quantity of each sensor measurement information.

  As described above, the monitoring database 113 stores sensor measurement information at each time for the water and sewage plant 101. FIG. 2 shows an example in which sensor measurement information relating to the pump flow rate and the water level (water storage amount) of the reservoir (reservoir) is accumulated in the monitoring database 113. In addition to monitoring, monitoring data related to power reception, operation, and water quality is also accumulated.

  Returning to FIG. 1, the analysis data extraction device 121 (analysis data extraction unit), the relationship analysis device 122 (relationship analysis unit), and the screen creation device 123 (system diagram creation unit) will be described next. .

  The analysis data extraction device 121 selects data to be used for analysis from the monitoring data stored in the monitoring database 113 and extracts it as analysis data. Here, the analysis data includes the amount of water stored at each time of the plurality of water storage facilities and the amount of inflow / outflow at each time of the plurality of pipelines. In addition, as the inflow / outflow amount of the pipeline, the amount of water delivered by the pump equipment provided in the pipeline, the amount of water delivered according to the height difference between both ends of the pipeline, the inclination of the pipeline, and the like are applied.

  The analysis data extraction apparatus 121 configured as described above is based on the monitoring data (sensor measurement information) accumulated in the monitoring database 113, and the water storage amount at each time of the plurality of water storage facilities and each time of the plurality of pipelines. Analytical data including inflow and outflow in The analysis data extraction device 121 transmits the extracted analysis data to the relationship analysis device 122.

  The relationship analysis device 122 performs a predetermined calculation based on the analysis data extracted by the analysis data extraction device 121, and then estimates (calculates) a pipeline that is used among a plurality of pipelines. ) Here, before describing the relationship analysis device 122 in detail, the pipeline system of the water and sewage plant will be described.

  FIG. 3 is a diagram schematically illustrating an example of a pipeline system of the water and sewage plant according to the first embodiment. FIG. 3 shows pump facilities 301A and 301B indicated by circle symbols and water storage facilities 302A and 302B indicated by square symbols. The arrows given between these symbols indicate the pipeline and the flow direction (the direction in which water flows in the pipeline). In the example of FIG. 3, it is shown that the pump equipment 301A sends water to the water storage equipment 302A, and the pump equipment 301B sends water from the water storage equipment 302A to the water storage equipment 302B.

  Here, it is assumed that there is no increase or decrease in the amount of water in the middle of the pipeline. In this case, when the flow rate of the pump facility 301A increases, the water level increase rate of the water storage facility 302A increases, and when the flow rate of the pump facility 301B increases, the water level decrease rate of the water storage facility 302A and the water level increase rate of the water storage facility 302B increase. growing.

  The relationship analyzer 122 in FIG. 1 quantifies the correlation between the change in the amount of stored water and the inflow / outflow amount as a numerical value. This will be described in detail below.

First, the relationship analyzer 122 calculates a change in the amount of water stored at each time of the water storage facility based on the amount of water stored at each time of the water storage facility in the analysis data. For example, the relationship analyzer 122 determines the water storage facility j (reservoir j) based on the water storage amount P _{j, t} at time _t and the water storage amount P _{j, t-1 at} time (t−1). water volume change at the time _{t (P j, t -P j} , t-1) is calculated. Note that t = 1, 2,..., T.

Next, the relationship analysis apparatus 122, water storage amount of change at each time of water storage facilities _{j (P j, t -P j} , t-1) and, based on the discharge amount flowing at each time of water storage facilities j The following equation (1) is defined. In the following equation (1), the flow rate at time t of the pump i (i = 1, 2,..., N) of the pipeline connected to the water storage facility j is the inflow / outflow amount at each time of the water storage facility j. Q _{i, t} is used. C _{i, j} is an unknown at this point.

Next, the relationship analyzer 122 applies the least square method to Equation (1). That is, the relationship analyzer 122 calculates the value of C _{i, j} that minimizes the value of the following equation (2).

The calculated C _{i, j} indicates the correlation between the water storage facility j and the pipe line (pump i) connected to the water storage facility j, specifically, the change in the amount of water stored in the water storage facility j, The correlation with the inflow / outflow amount of the pipe line (pump i) connected with the water storage facility j is shown. For example, if C _{i, j} is 1 or a value close to 1, there is a strong correlation between the change in the water storage amount of the water storage facility j and the inflow amount of the pipe (pump i). If C _{i, j} is −1 or a value close to −1, the correlation between the change in the water storage amount of the water storage facility j and the outflow amount of the pipe (pump i) is strong. If C _{i, j} is 0 or a value close to 0, the correlation between the change in the water storage amount of the water storage facility j and the inflow / outflow amount of the pipe (pump i) is weak.

Therefore, when the threshold value a (> 0) is appropriately set in advance and −a ≧ C _{i, j} ≧ −1 or 1 ≧ C _{i , j} ≧ a, the pipe of the pump i is connected to the water storage facility j. So that it is more likely to be used for inflows and outflows. The threshold value a may be set by the user based on experience or performance, or may be automatically set by causing the relationship analysis device 122 to learn.

The relationship analyzer 122 is a pipe that satisfies −a ≧ C _{i, j} ≧ −1 or 1 ≧ C _{i, j} ≧ a, that is, a pipe having the above-described strong correlation (the above-described correlation is determined in advance). The pipeline that is above the standard) is estimated as the pipeline that is used for the inflow and outflow at the water storage facility j. On the other hand, the relationship analyzer 122 selects a pipe line that satisfies −a <C _{i, j} <a, that is, a pipe line that has a weak correlation (a pipe line in which the above correlation is lower than a predetermined reference). It is presumed that the pipeline is not used for inflow and outflow at the water storage facility j. The above estimation is performed for all the water storage facilities j (j = 1, 2,...) In the water and sewage plant 101.

  The relationship analyzing apparatus 122 configured as described above calculates a change in the amount of stored water at each time of the plurality of storage facilities based on the analysis data, and a correlation between the change in the stored water amount and the inflow / outflow amount. Based on the above, a pipeline that is used among a plurality of pipelines is estimated. In the above description, the correlation is quantified using the least square method, but the present invention is not limited to this. In the above description, the case where the present invention is applied to the flow rate by the pump has been described. However, the present invention can be similarly applied to the flow rate according to the height difference between both ends of the pipe.

  In addition, depending on the above-described estimation result, there may be a plurality of combinations of a used pipeline and a water storage facility connected to the used pipeline. For example, as shown in the equation (1), since the correlation between each pipe line and the water storage facility is calculated for each water storage facility, a plurality of water storage facilities for one pipe line (pump i). There is a possibility that the correlation is determined to be strong. In addition, when the threshold value a is small, there is a possibility that the correlation between a plurality of pipelines is strong for one water storage facility j. In such a case, the relationship analyzer 122 narrows down the connection relationship as follows so that the correspondence between the pipe line and the water storage facility becomes one-to-one.

  First, the relationship analyzer 122 determines that a certain water storage facility has a strong correlation in a negative range when the number of pipelines determined to be strong in a positive range is limited to one. In the case where the number of pipelines is limited to one, it is determined that the water storage facility and the pipeline limited to one are connected. And the relationship analysis apparatus 122 performs the recalculation and correction | amendment of a correlation coefficient, after removing the water storage equipment and the pipe line determined to be connected by one to one from the determination object of correlation. The above process is repeated.

  If the correspondence between the pipe line and the water storage facility is not one-to-one even after repeating the above processing, the relationship analyzer 122 selects the correlation among a plurality of combinations of the pipe line and the water storage facility. Is determined (estimated) that the pipelines and the water storage facilities that form a stronger combination (for example, the combination having the largest absolute value of the correlation) are connected one-to-one. By the above determination, the correspondence between the pipeline and the amount of stored water is successively narrowed down, and can finally be consolidated into a one-to-one correspondence.

  The screen creation device 123 creates a pipeline diagram showing a pipeline system that is a pipeline system estimated by the relationship analysis device 122. In the first embodiment, the screen creation device 123 creates a monitoring screen that shows the pipeline system drawing and information (for example, sensor measurement information) related to the entire plant 101. The pipe line shown in the pipe system drawing may be a pipe line determined to be connected to the water storage facility on a one-to-one basis, and whether or not the pipe line is connected to the water storage facility on a one-to-one basis. It may be a pipeline determined to be connected to the water storage facility. The monitoring screen created by the screen creation device 123 is transmitted to the monitoring control device 111 and displayed on the input / output device 112.

  FIG. 4 is a diagram schematically illustrating an example of a pipeline diagram of a monitoring screen displayed on the input / output device 112. In FIG. 4, as in FIG. 3, the symbol of the circle corresponds to the pump facility, the symbol of the square corresponds to the water storage facility, and the arrow corresponds to the pipe line and the flow direction. For example, rivers, lake water, ponds, and the like are applied as water sources, and urban areas, commercial areas, and the like are applied as consumers. In FIG. 4, pipes and the like estimated to be used are indicated by solid lines, and pipes and the like estimated to be not used are indicated by broken lines.

  According to the plant system drawing creating apparatus according to the first embodiment as described above, based on the sensor measurement information (monitoring data) accumulated in the monitoring database 113, the pipes used among the plurality of pipes Is estimated. Therefore, for example, when the pipeline system is changed, the user does not have to check which one of the plurality of pipelines is mainly used, so that the user's work load can be reduced. it can. In addition, it is possible to realize a monitoring control system that can flexibly cope with changes in the pipeline system.

  Further, according to the first embodiment, a pipeline diagram showing the estimated pipeline system is created. Thereby, the user can grasp | ascertain the state of a pipeline system easily by the display etc. of a pipeline system drawing.

<Embodiment 2>
In the plant system drawing creation apparatus described so far, the sensor measurement information stored in the monitoring database 113 is an actual measurement value. As a result of being affected by instrument failure or construction, some values are lost. There may be. Moreover, as shown in the measurement value unit 213 regarding the water level of the reservoir A and the water level of the reservoir B in FIG. 2, the unit system of some measurement values may be different from other unit systems of the same type. Furthermore, due to equipment structural reasons, a plurality of measurement values may be collected in duplicate for one water storage facility. For example, the interior of one reservoir has a two-layer structure. 1 water tank, No. 1 There are cases where each water level is measured, such as two water tanks.

  When the analysis data extracted by the analysis data extraction device 121 includes the above-described event, an arithmetic processing error occurs in the relationship analysis device 122, and the accuracy of the relationship analysis device 122 is estimated. Can be significantly reduced. In general, since the number of sensor measurement information stored in the monitoring database 113 is enormous, it is difficult for the user to manually find and correct the above-described event, that is, an item that causes an error in the arithmetic processing. is there. Therefore, the plant system drawing creation apparatus according to Embodiment 2 of the present invention can solve this problem as described below.

  FIG. 5 is a block diagram showing the configuration of the plant system drawing creation apparatus according to the second embodiment. In addition, in the plant system drawing production apparatus after the second embodiment, the same or similar components as those described in the first embodiment are denoted by the same reference numerals, and different portions will be mainly described. 5 is obtained by adding an analysis data pre-processing device 124 (analysis data pre-processing unit) to the configuration of the plant system drawing creation device (FIG. 1) of the first embodiment. is there.

  The analysis data pre-processing device 124 includes data loss, difference in unit system on the data, and duplication of a plurality of data for one water storage facility in the analysis data extracted by the analysis data extraction device 121. It is determined whether any event (operation processing error induction item) is included. When any event is included, the analysis data preprocessing device 124 performs an arithmetic process for correcting the event by removing or processing the event.

  For example, the analysis data preprocessing device 124 deletes data in a time zone in which there is a deficiency when there is a deficiency in the analysis data. The analysis data pre-processing device 124, when there is a difference in the unit system on the data in the analysis data, measures values of other unit systems so that they are unified to the most frequently used unit system. Convert. Further, the analysis data pre-processing device 124 calculates the average value of the measurement values when there is an overlap of a plurality of measurement values (data) for one water storage facility, or One of the measured values is selected as analysis data.

  The relationship analysis device 122 uses the analysis data corrected by the analysis data preprocessing device 124 for the above calculation and the above estimation.

  According to the plant system drawing creating apparatus according to the second embodiment as described above, when the above event is included in the analysis data, the event is corrected. Thereby, it is possible to suppress the occurrence of calculation processing errors in the relationship analysis device 122, and to improve the estimation accuracy of the relationship analysis device 122.

<Embodiment 3>
In the plant system drawing creation device described so far, the pipeline system drawing created by the screen creation device 123 includes not only relatively static information such as the pipeline system, but also the upper and lower limit water levels of the reservoir and the amount of pump water delivered. It is preferable to add information about operations (relatively dynamic information) such as distribution. Therefore, in the plant system drawing creating apparatus according to Embodiment 3 of the present invention, information relating to operation (hereinafter referred to as “operation related information”) is added to the pipeline system drawing as described below.

  FIG. 6 is a block diagram showing the configuration of the plant system drawing creation apparatus according to the third embodiment. The configuration of the plant system drawing creation device in FIG. 6 is obtained by adding an equipment parameter estimation device 125 (parameter estimation unit) to the configuration of the plant system drawing creation device in FIG.

  The facility parameter estimation device 125 extracts monitoring data (sensor measurement information) accumulated in the monitoring database 113 for each water storage facility belonging to the pipeline system estimated by the relationship analysis device 122. And the equipment parameter estimation apparatus 125 estimates (calculates) the operation related information of each water storage equipment based on the extracted monitoring data.

  The operation-related information is changed according to the type of equipment in the plant 101, for example, the upper and lower limit water levels of the reservoir and the equipment output value. In the equipment parameter estimation device 125, an arithmetic expression for calculating operation-related information is registered in advance. The equipment parameter estimation device 125 substitutes the extracted monitoring data into each arithmetic expression, and estimates operation-related information using values obtained thereby.

  The screen creation device 123 adds the operation related information estimated by the equipment parameter estimation device 125 to the pipeline system drawing. As a result, the pipeline diagram with the operation related information added is displayed on the input / output device 112.

  According to the plant system drawing creation apparatus according to the third embodiment as described above, operation-related information is added to the pipeline system drawing and displayed. As a result, the user can refer to the operation-related information, and can immediately determine whether the current state of the facility is normal or abnormal.

<Embodiment 4>
In general, the water and sewage pipes are designed in consideration of the terrain, demographic changes on the ground, safety as a plant, and the like. For this reason, new pipelines may be laid or existing pipelines may be suspended due to the influence of management decisions such as construction of new residential areas and disaster countermeasures. Looking at the contents of each construction, the judgment of whether or not a change in a pipe line affects the entire water and sewage plant, such as the addition of a terminal pipe if there is a change in a large-diameter pipe line, is sometimes Depending on the case.

  For this reason, operators and designers consider the impact on plant operation or the central monitoring and control system every time pipeline construction or change work is carried out. It is necessary to update the internal parameters used. Therefore, the plant system drawing creation apparatus according to Embodiment 4 of the present invention can solve this problem as described below.

  FIG. 7 is a block diagram showing the configuration of the plant system drawing creation apparatus according to the fourth embodiment. The configuration of the plant system drawing creation apparatus in FIG. 7 is obtained by adding an output evaluation device 126 (output evaluation unit) to the configuration of the plant system drawing creation apparatus (FIG. 6) according to the third embodiment.

  Here, the relationship analysis apparatus 122 according to the fourth embodiment performs the above-described calculation and the above-described estimation for each predetermined period (time interval).

  The output evaluation device 126 causes the screen creation device 123 to create a pipeline system drawing when the pipeline system estimated by the relationship analysis device 122 changes. Here, as a case where the pipeline system estimated by the relationship analysis device 122 changes, the pipeline system estimated by the relationship analysis device 122 and the pipeline system used by the monitoring control device 111 are different. The case where it differs, or the case where the system of the pipe line estimated this time by the relationship analysis apparatus 122 differs from the system of the pipe line estimated last time etc. is applied.

  According to the plant system drawing creation device according to the fourth embodiment as described above, when the pipeline system estimated by the relationship analysis device 122 changes, the screen creation device 123 creates the pipeline system drawing. Created. As a result, the user does not need to give an instruction to update the pipeline system for each construction in which the pipeline system of the plant 101 is continuously changed, so that the user's workload can be suppressed. Even if the user forgets the update instruction, the pipeline system is automatically updated, and therefore, the difference between the actual plant pipeline system and the monitor screen pipeline system is suppressed as much as possible. It becomes possible.

<Embodiment 5>
If the central monitoring and control device is configured to have operation support functions such as demand forecasting and reservoir water level simulation, it does not perform prediction or simulation for all water storage facilities to be monitored, Predictions may be made only for major water storage facilities that form the basis of the distribution reservoir operation. In this case, selection of the main water storage facilities is performed by the user based on various information, but there is a problem that the selection takes time and load. Therefore, according to the plant system drawing creation apparatus according to Embodiment 5 of the present invention, it is possible to select a main water storage facility without the user selecting a main water storage facility, as will be described below. It has become.

  FIG. 8 is a block diagram showing a configuration of a plant system drawing creating apparatus according to the fifth embodiment. The configuration of the plant system drawing creation device in FIG. 8 is the same as the configuration of the plant system drawing creation device in FIG. 3 (FIG. 6), but the adjustment target facility selection device 127 (importance calculation unit) and the operation support device 128 (operation Support department).

  Here, it is assumed that the plant 101 is a water and sewage plant, and further includes a water purification plant and a sewage treatment plant. However, when the plant 101 is a waterworks plant, the plant 101 further includes only a water purification plant, and when the plant 101 is a sewerage plant, the plant 101 further includes only a sewage treatment plant.

  The adjustment target facility selection device 127 uses the monitoring data (sensor measurement information) accumulated in the monitoring database 113 for each water storage facility that belongs to the pipeline system estimated by the relationship analysis device 122 to the water purification plant and the sewage treatment plant. Acquire the proximity of the water storage facility and the inflow / outflow amount of the water storage facility.

  In the fifth embodiment, a proximity of “1” is set for a water storage facility that is connected to a water purification plant or a sewage treatment plant via a pipeline without passing through another water storage facility. A proximity of “m + 1” is set for a water storage facility that is connected to a water purification plant or a sewage treatment plant via pipes via m water storage facilities. However, the proximity setting is not limited to this.

  The adjustment target facility selection device 127 calculates the importance of each water storage facility belonging to the above-described pipeline system based on the acquired proximity and inflow / outflow amount. Here, the greater the proximity value (the farther away from the water purification plant or the like), the smaller the importance. Also, the greater the inflow / outflow amount, the greater the importance.

  The adjustment target facility selection device 127 determines that the water storage facility whose importance is equal to or higher than a predetermined threshold is an internal parameter calculation target in the facility parameter estimation device 125. On the other hand, the adjustment target equipment selection device 127 determines that the water storage equipment whose importance is smaller than a predetermined threshold value is outside the calculation target of the internal parameter in the equipment parameter estimation device 125.

  The facility parameter estimation device 125 calculates an internal parameter value used by the operation support device 128 based on the sensor measurement information stored in the monitoring database 113 only for the water storage facility whose importance is equal to or higher than a predetermined threshold.

  The operation support device 128 uses the internal parameter value of the water storage facility calculated by the facility parameter estimation device 125 to perform a calculation for presenting predetermined information about the plant 101. Here, for example, at least one of prediction information, simulation information, and guidance information related to the plant 101 is applied to the information predetermined for the plant 101.

  According to the plant system drawing creating apparatus according to the fifth embodiment as described above, the user does not have to select a main water storage facility when, for example, a change of the pipeline system occurs, so the user's work The load can be reduced.

<Modification>
In the above description, the relationship analysis apparatus 122 defines the above-described equation (1) and applies the least square method to the equation (1). However, when the analysis data includes the water distribution amount D _{j, t} at the time t of the water storage facility j (reservoir j), the relationship analyzer 122 defines the following equation (3), Instead of 1), the least square method may be applied to equation (3).

  Moreover, in the above description, the relationship analyzer 122 calculated the correlation between the change in the amount of stored water and the inflow / outflow amount. However, the present invention is not limited to this, and a physical quantity similar to a change in the amount of stored water, such as a rate of increase or decrease in the amount of stored water, may be used instead of the change in the amount of stored water. Here, the water storage amount increase / decrease rate = (water storage amount at time t−water storage amount at time (t−1)) / maximum water storage amount. In addition, an inflow / outflow rate increase / decrease rate may be used for the correlation. Here, inflow / outflow rate increase / decrease rate = (water supply amount at time t−water supply amount at time (t−1)) / maximum water supply amount.

  Also, the analysis data extraction device 121, the relationship analysis device 122, the screen creation device 123, the analysis data preprocessing device 124, the equipment parameter estimation device 125, the output evaluation device 126, the adjustment target equipment selection device 127, and the operation support It may not be a device such as the device 128. For example, a CPU (Central Processing Unit) (not shown) may execute a program stored in a storage device such as a semiconductor memory, thereby realizing the functions of the device as the functions of the CPU.

  It should be noted that the present invention can be freely combined with each embodiment and each modification within the scope of the invention, and each embodiment and each modification can be appropriately modified and omitted.

  Although the present invention has been described in detail, the above description is illustrative in all aspects, and the present invention is not limited thereto. It is understood that countless variations that are not illustrated can be envisaged without departing from the scope of the present invention.

101 plant, 113 monitoring database, 121 analysis data extraction device, 122 relationship analysis device, 123 screen creation device, 124 analysis data pre-processing device, 125
Equipment parameter estimation device, 126 output evaluation device, 127 adjustment target equipment selection device, 128 operation support device.

Claims (7)

A plant system information creation device for creating information on a pipeline system for a water plant including a plurality of water storage facilities and a plurality of pipelines connecting them,
A monitoring database for accumulating sensor measurement information at each time measured by the water plant sensor;
Analysis for extracting data for analysis including the water storage amount at each time of the plurality of water storage facilities and the inflow / outflow amount at each time of the plurality of pipes from the sensor measurement information accumulated in the monitoring database. A data extraction unit,
Based on the data for analysis, the change in the amount of water storage at each time of the plurality of water storage facilities is calculated, and the water storage facility and the water storage facility are connected based on the change in the amount of water storage and the inflow and outflow A correlation analysis unit that calculates a correlation with the pipeline and based on the correlation, and estimates a pipeline that is used among the plurality of pipelines,
The relationship analysis unit
When there are a plurality of combinations of the used pipe line and the water storage equipment connected to the used pipe line, the correlation is stronger than other combinations. A plant system information creation device that estimates that a pipeline and the water storage facility are connected one-on-one. The plant system information creation device according to claim 1,
The correlation is
It is a correlation between the change in the water storage amount of the water storage facility and the inflow / outflow amount of the pipe connected to the water storage facility,
The relationship analysis unit
A plant system information creation device that estimates a pipeline having a correlation greater than or equal to a predetermined reference as the pipeline being used. The plant system information creation device according to claim 1 or claim 2,
A plant system information creation device, further comprising a system diagram creation unit that creates a pipeline system drawing showing a pipeline system that is a system of the pipeline estimated by the relationship analysis unit. The plant system information creation device according to claim 1 or claim 2,
The analysis data extracted by the analysis data extraction unit includes any of the following events: data loss, difference in unit system on data, and duplication of a plurality of data for one water storage facility A data pre-processing unit for analysis for correcting the event,
The relationship analysis unit
A plant system information creation device that uses the analysis data corrected by the analysis data preprocessing unit for the calculation and the estimation. The plant system information creation device according to claim 3,
About the water storage equipment belonging to the pipeline system, further comprising a parameter estimation unit that estimates information about operation based on the sensor measurement information accumulated in the monitoring database,
The systematic drawing creation unit
A plant system information creation device for adding information related to the operation estimated by the parameter estimation unit to the pipeline system drawing. The plant system information creation device according to claim 3,
The relationship analysis unit
Performing the calculation and the estimation for each predetermined period;
A plant system information creation device, further comprising an output evaluation unit that causes the system diagram creation unit to create the pipeline system drawing when the system of the pipeline estimated by the relationship analysis unit changes. The plant system information creation device according to claim 5,
The water plant further includes at least one of a water purification plant and a sewage treatment plant,
For the water storage facility belonging to the pipeline system, the importance of the water storage facility is determined based on the proximity of the water storage facility to at least one of the water purification plant and the sewage treatment plant, and the inflow / outflow amount of the water storage facility. An importance calculator to calculate,
Using an internal parameter value of the water storage facility, further comprising an operation support unit that performs an operation for presenting predetermined information about the water plant,
The parameter estimation unit includes:
Only for the water storage facility in which the importance calculated by the importance calculation unit is equal to or greater than a predetermined threshold, the internal used by the operation support unit based on the sensor measurement information stored in the monitoring database Plant system information creation device for calculating parameter values.

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