JP2007034516A - Plant data arithmetic and accumulation processing device, and plant data arithmetic and accumulation processing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plant data arithmetic and accumulation processing device, and a plant data arithmetic and accumulation processing method capable of reducing a workload at the correction of an arithmetic equation. <P>SOLUTION: An arithmetic equation table is edited, and an arithmetic result table is initialized by the edited arithmetic equation table. The edited arithmetic equation table and the initialized arithmetic result table are transmitted and stored. The stored arithmetic equation table and an arithmetic equation table currently in operation are compared, and corrected arithmetic equations are detected. Only the portion of the arithmetic result table, currently in operation corresponding to the detected corrected arithmetic equations, is replaced with the stored arithmetic result table, and the arithmetic equation table currently in operation is replaced by the stored arithmetic equation table. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a plant data calculation / storage processing apparatus and a plant data calculation / storage processing method for performing necessary calculations using data obtained from a plant and storing calculation results, and in particular, a burden at the time of correction of calculation formulas. The present invention relates to a plant data calculation / storage processing apparatus and a plant data calculation / storage processing method suitable for reduction.

  In plant operation, there is a plant data calculation / storage processing device that performs necessary calculations using data obtained from the plant, and performs calculation result storage processing, standard format output processing, and the like, together with a plant control device that controls the plant. (For example, refer to Patent Document 1 below).

  Such a plant data calculation / storage processing device has a tool for correcting an arithmetic expression and an output format. When correcting an arithmetic expression, the correction is usually made effective through the following process. To do. First, the arithmetic expression table is corrected by the correction tool, and the calculation result table is initialized (calculation of initial values) by the corrected arithmetic expression table. A part of the arithmetic expression table is an actual correction target. In the initialization of the arithmetic result table, an initialization part corresponding to the correction part of the arithmetic expression table and other initialization parts are mixed.

Next, the calculation formula table and the calculation result table are sent to a function unit that collects, calculates, and accumulates data from the plant. Each is overwritten. At this time, the original calculation result table is initialized in accordance with the correction of the calculation formula table, but on the other hand, initialization not corresponding to the correction portion of the calculation formula table is also performed. For this reason, the calculation result table part that does not correspond to the correction part of the calculation expression table is usually repaired by performing manual calculation using information in the original calculation result table.
Japanese Patent Laid-Open No. 10-320038

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a plant data calculation / storage processing device and a plant data calculation / storage processing method capable of reducing a burden at the time of correction of an arithmetic expression. .

  In order to solve the above-described problem, a plant data calculation storage processing apparatus according to an aspect of the present invention initializes a calculation result table by an calculation formula table editing unit that edits a calculation formula table and the edited calculation formula table. An engineering result table initialization unit, an engineering tool having a table transmission unit for transmitting the edited arithmetic expression table and the initialized arithmetic result table, an arithmetic expression table sent by the engineering tool, and New table storage unit for storing operation result table, current expression storage unit for storing operation expression table and operation result table currently operated, and operation table and current table storage unit of new table storage unit A modified arithmetic expression for detecting a modified arithmetic expression by comparing with the arithmetic expression table of An operation result table update in which only the operation result table portion of the current table storage unit corresponding to the detected modified arithmetic expression is replaced with the operation result table stored in the new table storage unit. And a plant data calculation storage server having a calculation formula table update unit that replaces the calculation formula table of the current table storage unit with the calculation formula table of the new table storage unit.

  In addition, a plant data calculation storage processing device according to another aspect of the present invention includes a calculation formula table editing unit that edits a calculation formula table, and a calculation result table initializing a calculation result table using the edited calculation formula table. A new table storage unit that stores the edited arithmetic expression table and the initialized arithmetic result table, and a current table acquisition unit that acquires the arithmetic expression table and the arithmetic result table currently used A corrected arithmetic expression detection unit that detects an arithmetic expression corrected by comparing the stored arithmetic expression table with the acquired arithmetic expression table; and the detected arithmetic expression table that is detected among the stored arithmetic result tables An operation result table reproduction unit that replaces only portions that do not correspond to the modified operation expression with the acquired operation result table, and the storage. An engineering tool having a table transmitting unit for transmitting the calculated arithmetic expression table and the replaced arithmetic result table, and a current table storage for storing the arithmetic expression table and the arithmetic result table currently operated And a plant data calculation storage server having a table update unit that replaces the calculation formula table and the calculation result table stored in the current table storage unit with the transmitted calculation formula table and calculation result table, respectively. It is characterized by comprising.

  The plant data calculation / storage processing method according to one aspect of the present invention includes a step of editing an arithmetic expression table, a step of initializing an arithmetic result table using the edited arithmetic expression table, and the edited arithmetic expression Transmitting the table and the initialized calculation result table, storing the transmitted calculation expression table and calculation result table, the stored calculation expression table, and a calculation currently being operated A step of detecting a corrected arithmetic expression by comparing with an expression table, and only the portion of the operation result table currently in operation corresponding to the detected corrected arithmetic expression is stored in the stored operation The step of replacing with the result table, and the arithmetic expression table currently in operation at the saved arithmetic expression table Characterized by comprising the steps of changing come.

  The plant data calculation / storage processing method according to another aspect of the present invention includes a step of editing a calculation formula table, a step of initializing a calculation result table using the edited calculation formula table, and the edited calculation. A step of storing an expression table and the initialized calculation result table; a step of acquiring a calculation expression table and a calculation result table currently operated; and the stored calculation expression table and the acquired calculation A step of detecting a corrected arithmetic expression by comparing with an expression table, and only the portion of the stored arithmetic result table that does not correspond to the detected corrected arithmetic expression is acquired The step of replacing with the result table, and the stored arithmetic expression table and the replaced arithmetic result table are sent. A step of, in the transmitted arithmetic expression table and calculation result table, characterized by comprising the step of replacing the arithmetic expression table and the calculation result table are operated at present, respectively.

  ADVANTAGE OF THE INVENTION According to this invention, the plant data calculation accumulation | storage processing apparatus and plant data calculation accumulation | storage processing method which can reduce the burden at the time of calculation formula correction can be provided.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a plant data calculation and accumulation processing apparatus according to an embodiment of the present invention. This plant data calculation / storage processing apparatus has an engineering tool 10 and a plant data calculation / storage server 20 as constituent elements, which have internal configurations described later.

  The plant data calculation storage server 20 acquires various types of plant measurement data obtained when the plant control device 30 controls the plant 40 from the plant 40 via the plant control device 30, and uses this to calculate with a predetermined calculation formula. And processing such as accumulation of the result. The engineering tool 10 edits an arithmetic expression for the plant data arithmetic storage server 20 to perform processing such as arithmetic, and specifies a format for outputting the stored data in a predetermined format.

  The engineering tool 10 includes an arithmetic expression / format editing unit 11, an arithmetic result table initialization unit 12, an arithmetic expression table 13, an arithmetic result table 14, and a table transmission unit 15.

  The arithmetic expression / format editing unit 11 edits the arithmetic expression of the calculation performed by the plant data calculation storage server 20 and the format when the data stored in the plant data calculation storage server 20 is output by a user operation. It is. Since a known technique can be used for editing the format, a description thereof will be omitted below. The arithmetic expression corrected by editing is reflected in the arithmetic expression table 13.

  The calculation result table initialization unit 12 obtains an initial value of a calculation result using a calculation formula in the calculation formula table 13 by a user operation or automatically. The obtained initial value is reflected in the calculation result table 14.

  The calculation formula table 13 and the calculation result table 14 are storage storage areas for tabulated calculation formulas and tabulated calculation results, respectively. The table transmission unit 15 transmits the contents of the calculation formula table 13 and the calculation result table 14 to the plant data calculation storage server 20.

  The plant data calculation storage server 20 includes a new table storage unit 21, a current table storage unit 22, a calculation formula table update unit 23, a corrected calculation formula detection unit 24, a calculation result table update unit 25, and a calculation processing unit 26.

  The new table storage unit 21 is a storage storage area that receives and stores the arithmetic expression table and the calculation result table sent from the table transmission unit 15 of the engineering tool 10. These are stored as an arithmetic expression table 21a and an arithmetic result table 21b. The current table storage unit 22 is a storage storage area for storing the arithmetic expression table 22a and the operation result table 22b currently used.

  The arithmetic expression table updating unit 23 performs processing for replacing the arithmetic expression table 22 a of the current table storage unit 22 with the arithmetic expression table 21 a of the new table storage unit 21.

  The corrected arithmetic expression detection unit 24 compares the arithmetic expression table 21a of the new table storage unit 21 with the arithmetic expression table 22a of the current table storage unit 22 and detects the corrected arithmetic expression. For example, it is possible to detect using ID information or information indicating an attribute assigned to each arithmetic expression as a key. The detection result is sent to the calculation result table update unit 25.

  Based on the detection result sent from the corrected arithmetic expression detection unit 24, the arithmetic result table update unit 25 replaces only the part of the arithmetic result table 22 b corresponding to the corrected arithmetic expression in the new table storage unit 21. Replace with 21b. Such replacement can prevent unnecessary replacement of the portion of the operation result table 22b corresponding to the uncorrected operation expression.

  The arithmetic processing unit 26 acquires various measurement data from the plant 40 via the plant control device 30, applies an arithmetic expression in the arithmetic expression table 22a of the current table storage unit 22 to the measurement data, and further calculates an arithmetic result as necessary. The calculation is also performed using the data in the table 22b, and the calculation result is stored in the calculation result table 22b. The calculation result table 22b is used for outputting data in a predetermined format as necessary. Although not shown, the plant data calculation storage server 20 has a configuration for that purpose.

  Next, with reference to FIG. 2, the operation of the plant data calculation / storage processing device shown in FIG. FIG. 2 is a flowchart showing an operation flow when the arithmetic expression table is corrected in the plant data arithmetic storage processing apparatus shown in FIG.

  When correcting the arithmetic expression table, first, the user edits the arithmetic expression from the arithmetic expression / format editing unit 11 of the engineering tool 10 (step 51). As a result, the arithmetic expression table 13 of the engineering tool 10 becomes the corrected one. Therefore, the initial value of the calculation result is calculated using the calculation formula table 13, and the calculation result table 14 of the engineering tool 10 is initialized with the calculation result (step 52). The contents of the calculation formula table 13 and the initialized calculation result table 14 obtained by editing are sent to the plant data calculation storage server 20 by the table transmission unit 15 (step 53).

  The plant data calculation storage server 20 stores and saves the contents of the sent calculation formula table 13 and calculation result table 14 as the calculation formula table 21a and calculation result table 21b of the new table storage unit 21 (step 54). Then, the stored arithmetic expression table 21a and the arithmetic expression table 22a of the current table storage unit 22 currently operated are compared by the corrected arithmetic expression detection unit 24 to detect the corrected arithmetic expression (step) 55). The detection result is sent to the calculation result table update unit 25. The calculation result table updating unit 25 replaces only the portion of the calculation result table 22b currently operated corresponding to the corrected calculation formula with the stored calculation result table 21b (step 56).

  The arithmetic expression table 22a currently used is replaced with the arithmetic expression table 21a stored in the new table storage section 21 by the arithmetic expression table update section 23 (step 57). As described above, the arithmetic expression table correction is made effective. The processing operation of the arithmetic processing unit 26 is performed using the arithmetic expression table 22a and the arithmetic result table 22b at that time both before and after the correction is made effective.

  According to this embodiment, when the arithmetic expression table is corrected, the initial value based on the arithmetic expression that has not been corrected is not reflected in the currently operated arithmetic result table 22b. Therefore, it is possible to save the labor of manually recalculating the correct value using the data in the original calculation result table, thereby reducing the work load and increasing the work efficiency.

  Next, another embodiment of the present invention will be described with reference to FIG. FIG. 3 is a block diagram showing a configuration of a plant data calculation and storage processing apparatus according to another embodiment of the present invention. Components identical or equivalent to those shown in FIG. is there. The description of that part is omitted unless otherwise specified.

  In this embodiment, a function for creating a substantial update table is provided on the engineering tool 10A side, and the plant data calculation storage server 20A side receives the updated table and thereby replaces the current table storage unit 22 as it is. And a function for sending out a table currently in operation. That is, the engineering tool 10A includes an arithmetic expression / format editing unit 11, an arithmetic result table initialization unit 12, a new table storage unit 21A, a current table acquisition unit 16, a modified arithmetic expression detection unit 24, an arithmetic result table reproduction unit 17, and a table. The plant data calculation storage server 20 </ b> A includes a transmission unit 15, and includes a current table storage unit 22, a calculation processing unit 26, and a data update unit 27.

  The calculation formula table 13 and the calculation result table 14 correspond to the same reference numerals as those shown in the embodiment shown in FIG. 1, but here, a table sent to the plant data calculation storage server 20A as the new table storage unit 21A is held. It works as well. The current table acquisition unit 16 has a function of acquiring the contents of the operation formula table 22a and the operation result table 22b currently operated from the plant data calculation storage server 20A, and the acquired contents as the operation expression table 16a and the operation result table. 16b.

  The corrected arithmetic expression detection unit 24 has the same function as that of the same reference numeral provided in the plant data arithmetic storage server 20A of the embodiment shown in FIG. 1, and the detection result is sent to the arithmetic result table reproduction unit 17. The calculation result table reproduction unit 17 replaces only a portion of the calculation result table 14 of the new table storage unit 21A that does not correspond to the detected corrected calculation formula with the calculation result table 16b of the current table acquisition unit 16. Is. By such replacement, the initialization part of the calculation result table 14 corresponding to the calculation expression that has not been corrected is reproduced with the contents of the calculation result table 16b currently used.

  The plant data calculation storage server 20A receives the contents of the calculation formula table 13 and calculation result table 14 of the new table storage unit 21A sent by the table transmission unit 15 of the engineering tool 10A by the table update unit 27. Then, the contents of the arithmetic expression table 22a and the arithmetic result table 22b of the current table storage unit 22 are replaced with the received contents.

  Next, with reference to FIG. 4, the operation at the time of correction of the arithmetic expression table of the plant data arithmetic storage processing apparatus shown in FIG. 3 will be described over time. FIG. 4 is a flowchart showing an operation flow when the calculation formula table is corrected in the plant data calculation storage processing apparatus shown in FIG.

  When correcting the arithmetic expression table, first, the user edits the arithmetic expression from the arithmetic expression / format editing unit 11 of the engineering tool 10A (step 61). As a result, the arithmetic expression table 13 of the new table storage unit 21A becomes the corrected one. Therefore, the initial value of the calculation result is calculated using the calculation formula table 13, and the calculation result table 14 of the new table storage unit 21A is initialized with the calculation result (step 62). The edited equation table 13 and the initialized calculation result table 14 are stored in the new table storage unit 21A (step 63).

  Next, the current table acquisition unit 16 acquires the calculation formula table and the calculation result table currently used from the plant data calculation storage server 20A (step 64), and calculates the acquired calculation formula table and calculation result table. It stores and saves as the expression table 16a and the calculation result table 16b. Then, the stored arithmetic expression table 13 and the acquired arithmetic expression table 16a currently used are compared by the corrected arithmetic expression detection unit 24 to detect the corrected arithmetic expression (step 65). The detection result is sent to the calculation result table reproduction unit 17. The calculation result table reproduction unit 17 replaces only the portion of the calculation result table 14 that does not correspond to the detected corrected calculation formula with the acquired calculation result table 16b currently used (step 66).

  Next, the contents of the calculation formula table 13 and the calculation result table 14 of the new table storage unit 21A are transmitted to the plant data calculation storage server 20A by the table transmission unit 15 (step 67). In the plant data calculation storage server 20A, the contents of the calculation formula table 22a and calculation result table 22b of the current table storage unit 22 are replaced by the table update unit 27 with the contents of the calculated calculation formula table 13 and calculation result table 14 (step 68). As described above, the arithmetic expression table correction is made effective. The processing operation of the arithmetic processing unit 26 is performed using the arithmetic expression table 22a and the arithmetic result table 22b at that time both before and after the correction is made effective.

  Also in this embodiment, when the arithmetic expression table is corrected, the initial value based on the uncorrected arithmetic expression is not reflected in the currently operated arithmetic result table 22b. Therefore, it is possible to save the labor of manually recalculating the correct value using the data in the original calculation result table, thereby reducing the work load and increasing the work efficiency. Moreover, although the processing load of the engineering tool 10A increases, conversely, the processing load of the plant data calculation storage server 20A is reduced. This is preferable in reducing the burden on the plant data calculation storage server 20A.

  Next, still another embodiment of the present invention will be described with reference to FIG. FIG. 5 is a block diagram showing a configuration of a plant data calculation and accumulation processing apparatus according to still another embodiment of the present invention, and the same or equivalent components as those already described are denoted by the same reference numerals. . The description of that part is omitted unless otherwise specified.

  This embodiment is based on the plant data calculation / storage processing apparatus shown in FIG. 1, and a new replenishment calculation function unit 28 is provided in the plant data calculation / storage server 20 </ b> B. Further, data is supplied to the replenishment calculation function unit 28. The historical data collection server 70 is added. The intention of these added components is to cope with the case where the operation of the plant 40 is continued even though the plant data calculation storage server 20B stops functioning due to maintenance work or the like.

  When the plant data calculation storage server 20B stops functioning due to maintenance work or the like, the function of the calculation processing unit 26 stops, so that the calculation result is not stored in the calculation result table 22b. During this time, the historical data collection server 70 collects various measurement data from the plant 40 and stores it as a historical data table 70a. When the plant data calculation storage server 20B returns to function, the supplementary calculation function unit 28 acquires data from the historical data table 70a, performs calculation using this and the calculation formula table 22a, and stores the result in the calculation result table 22b. To do.

  According to this embodiment, it becomes possible to cope even when the function of the plant data calculation storage server 20B is stopped. In particular, manual calculation is not required to obtain a calculation result when the function of the plant data calculation storage server 20B is stopped, thereby reducing the work load and increasing the work efficiency. It should be noted that the functional enhancement of the plant data calculation / accumulation processing device of this embodiment can be similarly applied to the embodiment shown in FIG.

  In the embodiment shown in FIG. 5, a supplementary description will be given of a case where the calculation formula is corrected when the function of the plant data calculation storage server 20B is stopped. In this case, the operation of the engineering tool 10 is almost as described above, but the transmission operation of the table transmission unit 15 is actually after the function return of the plant data calculation storage server 20B. After that, it is confirmed whether or not it is time to make correction of the arithmetic expression effective at each step in which the replenishment calculation function unit 28 replenishes the operation result. When the timing of activation is reached, the current table storage unit 22 may be updated as described above, and the replenishment calculation by the replenishment calculation function unit 28 may be continued.

The block diagram which shows the structure of the plant data calculation accumulation | storage processing apparatus which concerns on one Embodiment of this invention. The flowchart which shows the operation | movement flow at the time of the arithmetic expression table correction in the plant data calculation storage processing apparatus shown in FIG. The block diagram which shows the structure of the plant data calculation storage processing apparatus which concerns on another embodiment of this invention. The flowchart which shows the operation | movement flow at the time of calculation formula table correction in the plant data calculation storage processing apparatus shown in FIG. The block diagram which shows the structure of the plant data calculation accumulation | storage processing apparatus which concerns on another embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10,10A ... Engineering tool, 11 ... Operational expression / format edit part, 12 ... Operation result table initialization part, 13 ... Operational expression table (in engineering tool), 14 ... Operation result table (in engineering tool), 15 ... Table Transmission unit, 16 ... current table acquisition unit, 16a ... calculation formula table (in current table acquisition unit), 16b ... calculation result table (in current table acquisition unit), 17 ... calculation result table reproduction unit, 20, 20A, 20B ... plant data Arithmetic storage server, 21, 21A ... New table storage unit, 21a ... Calculation formula table (in new table storage unit), 21b ... Calculation result table (in new table storage unit), 22 ... Current table storage unit, 22a ... Calculation formula table ( Current table storage unit), 22b ... calculation result table (current table storage unit) ), 23... Arithmetic expression table update unit, 24... Corrected arithmetic expression detection unit, 25... Calculation result table update unit, 26... Arithmetic processing unit, 27. server.

Claims (6)

An arithmetic expression table editing section for editing the arithmetic expression table;
A calculation result table initialization unit for initializing a calculation result table with the edited calculation expression table;
An engineering tool having a table transmission unit for transmitting the edited arithmetic expression table and the initialized arithmetic result table;
A new table storage unit for storing an arithmetic expression table and an operation result table sent by the engineering tool;
A current table storage unit for storing an arithmetic expression table and an operation result table currently in operation;
A corrected arithmetic expression detection unit that detects an arithmetic expression that is corrected by comparing the arithmetic expression table of the new table storage unit and the arithmetic expression table of the current table storage unit;
A calculation result table update unit that replaces only the calculation result table portion of the current table storage unit corresponding to the detected corrected calculation formula with the calculation result table stored in the new table storage unit;
A plant data calculation storage server, comprising: a calculation formula table update unit that replaces the calculation formula table of the current table storage unit with the calculation formula table of the new table storage unit. apparatus. An arithmetic expression table editing section for editing the arithmetic expression table;
A calculation result table initialization unit for initializing a calculation result table with the edited calculation expression table;
A new table storage for storing the edited arithmetic expression table and the initialized arithmetic result table;
A current table acquisition unit for acquiring an arithmetic expression table and an operation result table currently in operation;
A corrected arithmetic expression detection unit that detects the arithmetic expression corrected by comparing the stored arithmetic expression table and the acquired arithmetic expression table;
An operation result table re-creation unit that replaces only the portion of the stored operation result table that does not correspond to the detected corrected operation expression with the acquired operation result table;
An engineering tool having a table transmission unit for transmitting the stored arithmetic expression table and the replaced arithmetic result table;
A current table storage unit for storing the arithmetic expression table and the operation result table currently in operation;
A plant data calculation storage server comprising: a table update unit that replaces the calculation formula table and the calculation result table stored in the current table storage unit in the transmitted calculation formula table and calculation result table, respectively. Plant data calculation and storage processing device characterized by the above. A historical data collection server that is provided separately from the plant data calculation storage server and collects data from the plant;
A replenishment calculation function unit for replenishing the operation result table stored in the current table storage unit by using the plant data collected by the historical data collection server when the plant data operation storage server returns to operation; The plant data calculation / storage device according to claim 1, further comprising: A historical data collection server that is provided separately from the plant data calculation storage server and collects data from the plant;
A replenishment calculation function unit for replenishing the operation result table stored in the current table storage unit by using the plant data collected by the historical data collection server when the plant data operation storage server returns to operation; In addition,
The plant data calculation storage server performs calculation using the current table storage unit updated by the calculation result table update unit and the calculation formula table update unit as the replenishment calculation function unit that functions when the operation is restored. The plant data calculation accumulation processing device according to claim 1 characterized by things. Editing the equation table;
Initializing a calculation result table with the edited calculation expression table;
Transmitting the edited arithmetic expression table and the initialized arithmetic result table;
Storing the transmitted arithmetic expression table and arithmetic result table;
Comparing the stored arithmetic expression table with an arithmetic expression table currently in operation to detect a corrected arithmetic expression;
Replacing only the portion of the operation result table currently operated corresponding to the detected corrected operation expression with the stored operation result table;
And replacing the arithmetic expression table currently in operation with the stored arithmetic expression table. Editing the equation table;
Initializing a calculation result table with the edited calculation expression table;
Storing the edited arithmetic expression table and the initialized arithmetic result table;
A step of obtaining an arithmetic expression table and an operation result table currently in operation;
Detecting the corrected arithmetic expression by comparing the stored arithmetic expression table with the acquired arithmetic expression table;
Replacing only the portion of the stored calculation result table that does not correspond to the detected corrected calculation formula with the acquired calculation result table;
Transmitting the stored arithmetic expression table and the replaced arithmetic result table;
And a step of replacing the arithmetic expression table and the operation result table currently operated with the transmitted arithmetic expression table and operation result table, respectively.

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