CN113487347A - Intelligent cost analysis method - Google Patents

Intelligent cost analysis method Download PDF

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CN113487347A
CN113487347A CN202110689644.6A CN202110689644A CN113487347A CN 113487347 A CN113487347 A CN 113487347A CN 202110689644 A CN202110689644 A CN 202110689644A CN 113487347 A CN113487347 A CN 113487347A
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construction cost
cost
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analysis
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邹贵林
吴良峥
乔慧婷
张继钢
陈雯
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Energy Development Research Institute of China Southern Power Grid Co Ltd
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Abstract

The intelligent construction cost analysis method comprises the steps of collecting historical protocol construction cost budget data, building a technical data base, collecting deconstruction south network rule sample data in the technical data base, carrying out standardized deconstruction on basic data in the south network rule sample data in a multidimensional structure to build a standardized data base, sequentially carrying out data splicing on the obtained data, calculating various construction cost levels in the whole construction cost process, splicing the standardized data according to label dimensions, finally comparing a budget file with the standardized data according to analysis dimensions, intelligently outputting a charted and digitalized construction cost level report, and mastering the basic construction cost situation of the construction in time, so that the construction cost management of the power transmission and transformation project is enhanced, the improvement of the construction cost management level is promoted, and a basis is provided for the construction cost of the subsequent power grid project.

Description

Intelligent cost analysis method
Technical Field
The invention relates to the technical field of cost analysis, in particular to an intelligent cost analysis method.
Background
With the vigorous development of the power industry in China, the cost evaluation business faces the outstanding problems of expert talent shortage and full business workload, the traditional manual excel is adopted for statistics and analysis in the current cost evaluation, the workload is large, the consumed time is long, key data is lost, historical data cannot be fully utilized, and the control and analysis of the whole-process cost of a project are lacked. In order to master the basic situation of the construction cost of the project in time, strengthen the construction cost management of the power transmission and transformation project, promote the improvement of the management level of the construction cost, provide the construction cost basis and suggestion for the construction of the power grid project in future, a set of construction cost analysis scheme of the whole process is urgently needed to be constructed.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide an intelligent cost analysis method to solve the above problems in the background art.
The technical problem solved by the invention is realized by adopting the following technical scheme:
the intelligent cost analysis method comprises the following specific steps:
step 1) establishing a technical course database
Collecting a basic data pool, collecting historical south China network regulation cost budget data, including power transformation projects, overhead line projects, cable line projects, communication line projects, tunnel projects and the like, and building a technical data base;
step 2) collecting sample data
Collecting deconstruction south net rule sample data based on the technical warp database built in the step 1);
step 3) constructing a standardized database
Firstly, carrying out data standardization deconstruction, wherein a dimension modeling method is adopted for deconstructing a data model, and a data warehouse and a data mart are constructed according to a fact table and a dimension table;
secondly, performing standardized deconstruction on basic data in the south China network standard sample data according to multidimensional structures such as projects, batches, stages, versions and types to construct a standardized database;
step 4) splicing the standardized data
Performing data splicing on the data obtained in the steps 1) to 3), and calculating various cost levels of the whole cost process, such as total cost, subentry cost, investment change condition, project investment review condition, investment control index application, typical project stage control condition and the like, to obtain standardized data, specifically:
splicing and summarizing data label dimensions: the standardized data of the structure are compared with standard data of the south China network regulation after the result is calculated by different labels, including static investment, equipment purchase cost, construction engineering cost and the like, wherein the statistical data comprise:
summarizing evaluation of stage label dimensions: transversely comparing data in different stages, such as estimation, approximate calculation, budget and the like, by matching the project names, and calculating the difference rate of the standardized data in the different stages through an algorithm;
step 5) outputting a cost level library
Comparing the budget file with the standard data spliced in the step 4), intelligently outputting a charted and digitalized cost level report according to analysis dimensions such as the total cost level, the sub-item cost level, the investment change condition, the project investment review condition, the investment control index application, the investment control condition of each stage of the typical project and the like, and knowing the level in the whole cost process through the cost level report.
Has the advantages that: according to the invention, the data is extracted, the standardized database is constructed, then the standardized deconstruction splicing comparison is carried out on the data in the standardized database, and the construction cost basic condition can be mastered in time by intelligently outputting the construction cost level report after multi-dimensional analysis, so that the construction cost management of the power transmission and transformation project is enhanced, the construction cost management level is promoted to be improved, and a basis is provided for the construction cost of the subsequent power grid project.
Drawings
FIG. 1 is a flow chart of the preferred embodiment of the present invention.
FIG. 2 is a diagram illustrating a dimension modeling method in a preferred embodiment of the present invention.
FIG. 3 is a diagram illustrating a standardized database structure according to a preferred embodiment of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
Referring to fig. 1, the intelligent construction cost analysis method comprises the following specific steps:
step 1) establishing a technical course database
Collecting a basic data pool, collecting historical south China network regulation cost budget data as shown in table 1, wherein the historical south China network regulation cost budget data comprises power transformation engineering, overhead line engineering, cable line engineering, communication line engineering, tunnel engineering and the like, and building a technical data base;
TABLE 1 Nannet Provisioning cost budget data
Serial number Source Type (B) Parameter name Must fill in Remarks for note
1 Item Text Name of item Is that
2 Item Pull-down item Construction unit Whether or not
3 Item Pull-down item Voltage class Is that
4 Item Text Construction unit contact Whether or not
5 Item Text Let always Whether or not
6 Item Time selector Date of evaluation Is that
7 Item Pull-down item Evaluation phase Is that
8 Item Text Evaluation responsible person Is that
9 Item Accessories Summary of the invention Is that
10 Item Accessories Single item summary of the invention Is that
11 Item Accessories List of individual item comparisons Is that
12 Item Accessories Meeting era Is that
13 Item Accessories Other accessories Whether or not
14 Engineering of Text Project name Is that
15 Engineering of Text Engineering label Is that
16 Engineering of Pull-down item Type of engineering Is that
17 Engineering of Pull-down item Voltage class Is that
18 Engineering of Time selector Date of evaluation Is that
19 Engineering of Pull-down item Technical and experienced appraisal person Is that
20 Engineering of Pull-down item Nature of construction Is that
21 Engineering of Pull-down item Engineering area Is that
22 Engineering of Accessories Ministry of network construction cost budget document Is that
23 Engineering of Accessories Southern Dian make the table Whether or not
24 Engineering of Accessories Other accessories Whether or not
Step 2) collecting sample data
On the basis of the technical warp database built in the step 1), acquiring standard sample data for deconstructing the south China network standard as shown in a table 2, wherein the standard sample data comprises a construction cost control index, a construction cost control line, a south China network exploratable control index, a south China network dictionary manufacturing table and the like;
TABLE 2 southern Net regulatory sample data
Figure BDA0003126104230000031
Figure BDA0003126104230000041
Figure BDA0003126104230000051
Step 3) constructing a standardized database
Firstly, carrying out data standardization deconstruction, wherein a dimension modeling method and a Star mode (Star-schema) are adopted for a deconstructed data model, and a data warehouse and a data mart are constructed according to a fact table and a dimension table;
standardizing and deconstructing basic data in the south China network standard sample data according to multi-dimensional structures such as items, batches, stages, versions and types to construct a standardized database, wherein the structure of the standardized database is shown in FIG. 3;
step 4) splicing the standardized data
Performing data splicing on the data obtained in the steps 1) to 3), and calculating various cost levels of the whole cost process, such as total cost, subentry cost, investment change condition, project investment review condition, investment control index application, typical project stage control condition and the like, to obtain standardized data, specifically:
splicing and summarizing data label dimensions: the standardized data of the structure is shown in tables 3 and 4 through different labels, and comprises static investment, equipment purchase cost, construction engineering cost and the like, and the standard data of the south network convention are compared after the result is calculated:
TABLE 3 itemized expense comparison table
Figure BDA0003126104230000052
TABLE 4 static investment comparison table
Summarizing evaluation of stage label dimensions: by matching item names, different phases, e.g. estimation
Figure BDA0003126104230000061
The data in different stages of calculation, approximate calculation, budget, etc. are compared horizontally, and the difference rate of the normalized data in different stages is calculated by an algorithm as shown in table 5:
TABLE 5 comparison of stage Difference rates
Project name Estimating dynamic investments Approximate dynamic investment Budget dynamic investment Approximate comparison of estimated rate of change Budget versus estimated rate of change
New substation project 1000 900 810 -10％ 10％
New cable line engineering 1000 900 810 -10％ 10％
Step 5) outputting a cost level library
Comparing the budget file with the standard data spliced in the step 4), intelligently outputting a charted and digitalized cost level report according to analysis dimensions such as the total cost level, the sub-item cost level, the investment change condition, the project investment review condition, the investment control index application, the investment control condition of each stage of the typical project and the like, and knowing the level in the whole cost process through the cost level report.
The foregoing is only a preferred embodiment of the present invention and it should be noted that modifications and adaptations can be made by those skilled in the art without departing from the principle of the present invention and are intended to be included within the scope of the present invention.

Claims (6)

1. The intelligent cost analysis method is characterized by comprising the following specific steps:
step 1) establishing a technical course database
Collecting the budget data of the construction cost of the historic Nannet rule, and building a technical warp database;
step 2) collecting sample data
Collecting deconstruction south net rule sample data based on the technical warp database built in the step 1);
step 3) constructing a standardized database
Carrying out standardized deconstruction on basic data in the south network protocol sample data in the step 2) by using a multidimensional structure to construct a standardized database;
step 4) splicing the standardized data
And (3) carrying out data splicing on the data obtained in the steps 1) to 3), calculating various cost levels of the whole cost process, splicing standardized data according to label dimensions, comparing the budget file with the standardized data according to analysis dimensions, and intelligently outputting a charted and digitalized cost level report.
2. The intelligent construction cost analysis method according to claim 1, wherein in the step 1), the south net contract construction cost budget data includes power transformation engineering, overhead line engineering, cable line engineering, communication line engineering and tunnel engineering.
3. The intelligent construction cost analysis method according to claim 1, wherein in the step 3), the standardized solution is constructed by adopting a dimension modeling method, and a data warehouse and a data mart are constructed according to a fact table and a dimension table.
4. The intelligent cost analysis method as claimed in claim 1, wherein in step 3), the multidimensional structure includes items, lots, stages, versions and types.
5. The intelligent cost analysis method of claim 1, wherein in step 4), the label dimensions include a data label dimension and a stage label dimension.
6. The intelligent cost analysis method according to claim 1, wherein in step 4), the analysis dimensions include total cost level analysis, itemized cost level analysis, investment change analysis, project investment review analysis, investment control index application analysis and typical project stage investment control analysis.
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