CN115034911A - BIM-based whole-process cost consultation service method and system - Google Patents
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Abstract
The invention provides a BIM-based whole-process construction cost consultation service method and a system, wherein the system comprises the following components: the investment decision management module is used for adding preliminary cost data according to the constructed preliminary three-dimensional model and acquiring cost estimation information of the engineering project; the design management module is used for determining a final design scheme to obtain a BIM (building information modeling) model of the engineering project; the bid inviting and bidding management module is used for formulating and releasing bid inviting information; integrating bid winning information of different construction parts of the engineering project into a BIM (building information modeling) model of the engineering project; the construction management module is used for auditing the construction cost of each construction stage of the engineering project and adjusting the construction period and the capital plan; the completion acceptance management module is used for comparing the actual completion condition of the engineering project with the invitation construction drawing to obtain cost adjustment information and integrating the cost adjustment information into the BIM model of the engineering project; the invention improves the convenient level and the management level of the communication of the construction cost data of each stage and improves the capability of the construction cost consultation service in the whole process of the construction project.
Description
Technical Field
The invention relates to the technical field of construction cost consultation service, in particular to a BIM-based whole-process construction cost consultation service method and system.
Background
At present, the construction cost advisory service industry has been scaled up in the international market. The construction cost consultation service of foreign engineering construction projects starts earlier and has abundant experience of the construction cost consultation service. The cost consultation service industry in China is not mature compared with foreign countries. With the development trend of large construction scale, high complexity and large investment sum of the project of the engineering construction in China, at present, the traditional staged and single construction cost consultation service entrusting service mode is easy to have the conditions of different information between the construction cost consultation stages, inaccurate data, low management efficiency and the like, and can not meet the development requirement of the modern construction cost consultation service market.
Disclosure of Invention
In view of the above problems, the present invention aims to provide a BIM-based whole-process cost consulting service method and system.
The purpose of the invention is realized by adopting the following technical scheme:
in a first aspect, a BIM-based total-process construction cost consultation service system is provided, which includes: the system comprises an investment decision management module, a design management module, a bid and offer management module, a construction management module and a completion acceptance management module; wherein,
the investment decision management module is used for constructing a preliminary three-dimensional model of the engineering project by adopting a BIM technology, adding preliminary cost data according to the constructed preliminary three-dimensional model and acquiring cost estimation information of the engineering project;
the design management module is used for integrating the acquired design scheme and the engineering design approximate calculation information into the preliminary three-dimensional model; determining a final design scheme based on the preliminary three-dimensional model, acquiring a construction drawing and construction drawing budget of an engineering project corresponding to the final design scheme, and integrating related construction drawing and construction drawing budget information into the preliminary three-dimensional model to obtain a BIM (building information modeling) model of the engineering project;
the bid inviting and bidding management module is used for acquiring the engineering quantity information of the engineering project according to the engineering project BIM model and formulating and issuing bid inviting information by combining the engineering quantity information; the bid-winning information agreed by the bidding units is managed in a unified manner, and the bid-winning information of different construction parts of the engineering project is integrated into the BIM model of the engineering project;
the construction management module is used for auditing the construction cost of each construction stage of the engineering project in the construction process of the engineering project, adjusting the construction period and the fund plan according to the construction cost auditing result and integrating the adjusted construction period and fund adjustment plan into a BIM (building information modeling) model of the engineering project;
the completion acceptance management module is used for comparing the actual completion condition of the engineering project with the bidding construction drawing, re-pricing the construction part with larger difference, checking the actual engineering quantity in the construction process of the engineering project to obtain the cost adjustment information and integrating the cost adjustment information into the BIM model of the engineering project; and the cost accounting of the engineering project is completed according to the BIM model of the engineering project.
In one embodiment, the investment decision management module comprises a model construction unit, an investment estimation unit and a technical-economic analysis unit; wherein,
the model construction unit is used for constructing a preliminary three-dimensional model of the engineering project based on the BIM technology according to the basic information of the engineering project; the basic information of the engineering project comprises the type, the basic structure, the engineering content and the scale of the engineering project, the building function and the application, the design scheme, the manufacturing cost information of the project location, and the field investigation and survey information;
the investment estimation unit is used for carrying out rough engineering quantity estimation on the engineering project according to the basic information of the engineering project, carrying out preliminary construction cost estimation on the engineering project according to the rough engineering quantity estimation by combining the reference data of the existing project and the existing index type construction cost data, and obtaining the preliminary construction cost data;
and the technical-economic analysis unit is used for carrying out technical-economic analysis on the engineering project by combining the primary three-dimensional model and the primary cost data according to the basic information of the engineering project and carrying out technical-economic evaluation on the project.
In one embodiment, the design management module includes a design approximation unit and a design drawing budget unit; wherein,
the design approximate calculation unit is used for acquiring the engineering project design scheme and corresponding design approximate calculation information provided by a designer, integrating the design scheme into the preliminary three-dimensional model for display, screening and confirming the final design scheme;
and the design drawing budget unit is used for acquiring the construction drawing according to the final design scheme, carrying out rationality check according to the construction drawing, carrying out quota design on each construction link, compiling corresponding construction drawing budget, and integrating the construction drawing and the construction drawing budget information into the primary three-dimensional model to obtain the BIM model of the engineering project.
In one embodiment, the bid management module comprises a bid planning unit, a bid unit and a bid management unit; wherein,
the bid inviting planning unit is used for calculating the engineering quantity information of the engineering project according to the BIM model of the engineering project, dividing bid inviting contents and bid inviting sections of the engineering project according to the engineering quantity information and issuing corresponding bid inviting information;
the bidding unit is used for managing the bidding document information of the bidding unit of each bidding section according to different bidding sections of the engineering project, confirming the bidding information of each bidding section to obtain different parts of bid winning information and integrating the bid winning information into the BIM model of the engineering project; wherein the bid winning information comprises contract information, contract amount, payment deadline and the like of the corresponding construction part;
and the bid inviting management unit is used for uniformly managing the bid winning information of each bid inviting bid section of the engineering project to obtain the bid winning price of each part of the engineering project and integrating the bid winning price information into the BIM model of the engineering project.
In one embodiment, the construction management module comprises a construction cost auditing unit and a construction adjusting unit; wherein,
the construction cost auditing unit is used for acquiring the construction progress and the completed engineering quantity information of the engineering project, integrating the acquired construction progress and the completed engineering quantity information into the BIM model of the engineering project, auditing the construction progress of the engineering project according to the acquired construction progress information, and auditing the construction cost of a specific construction part according to the acquired completed engineering quantity information to obtain a corresponding construction cost auditing result;
and the construction adjusting unit is used for adjusting the construction plan and the construction cost when the construction cost auditing result deviates from the construction plan, obtaining construction period adjusting information and construction cost adjusting information and integrating the construction period adjusting information and the construction cost adjusting information into the BIM model of the engineering project.
In one embodiment, an as built accounting unit and an engineering accounting unit; wherein,
the completion accounting unit is used for comparing the actual construction condition of the engineering project with the construction drawing, carrying out construction cost accounting on the construction part subjected to construction adjustment in the actual construction process again, calculating the actual engineering quantity according to the record of the actual construction condition, carrying out re-pricing on the construction part according to the change information between the actual engineering quantity and the planned engineering quantity and combining contract appointment information, and integrating updated pricing information of the construction part into the BIM model of the engineering project;
and the project accounting unit is used for accounting the construction cost of the whole project based on the project BIM model to obtain the total construction cost information of the project.
In one embodiment, the system further comprises a login module;
the login module is used for logging in the system by a construction project cost consultant user and carrying out whole-process construction cost consultation service on the construction project through the corresponding module; and the construction party, the bid inviting party, the construction party and other related users log in the system and access the BIM model of the engineering project corresponding to the engineering project to obtain related information.
In one embodiment, the login module comprises a login unit and a right management unit; wherein,
the login unit is used for verifying the identity information of a login user, and allowing the user to login the system after the identity verification is passed;
the authority management unit is used for acquiring authority management information corresponding to the login user and limiting the access or management authority of the user according to the authority management information.
In a second aspect, the consultation service method of the BIM-based whole-process construction cost consultation service system according to any one of the implementation modes of the first aspect comprises the following steps:
building a preliminary three-dimensional model of the engineering project by adopting a BIM technology, and adding preliminary construction cost data according to the built preliminary three-dimensional model to obtain construction cost estimation information of the engineering project;
integrating the design scheme and the engineering design approximate calculation information into a preliminary three-dimensional model according to the acquired design scheme and the engineering design approximate calculation information; determining a final design scheme based on the preliminary three-dimensional model, acquiring an engineering project construction drawing and construction drawing budget corresponding to the final design scheme, and integrating related construction drawing and construction drawing budget information into the preliminary three-dimensional model to obtain an engineering project BIM model;
acquiring the engineering quantity information of the engineering project according to the BIM model of the engineering project, and formulating and issuing bid information by combining the engineering quantity information; the bid-winning information appointed by the bidding units is managed in a unified mode, and the bid-winning information of different construction parts of the engineering project is integrated into the BIM model of the engineering project;
in the construction process of the engineering project, checking the construction cost of each construction stage of the engineering project, adjusting the construction period and the fund plan according to the construction cost checking result, and integrating the adjusted construction period and fund adjustment plan into a BIM (building information modeling) model of the engineering project;
comparing the actual completion condition of the engineering project with the bidding construction drawing, re-pricing the construction part with larger difference, accounting the actual engineering quantity in the construction process of the engineering project to obtain cost adjustment information, and integrating the cost adjustment information into a BIM (building information modeling) model of the engineering project; and the cost accounting of the engineering project is completed according to the BIM model of the engineering project.
The invention has the beneficial effects that: the invention provides a BIM-based overall-process construction cost consultation service method and system, which respectively provide systematic, specialized and overall-process construction cost consultation services for decision-making phases, design phases, bid-inviting phases, construction phases and completion phases of the overall process of a construction project through an investment decision-making management module, a design management module, a bid-inviting management module, a construction management module and a completion acceptance management module. Meanwhile, the construction cost information of the engineering project is timely tracked, managed and visually displayed according to the built BIM, so that efficient data support is provided for the construction cost control of the whole construction process of the engineering project, the difficulty of construction cost consultation service at each stage of construction engineering is reduced, and the efficiency of the construction cost consultation service is improved. Moreover, the integrated management of the project cost data is carried out based on the BIM model, so that the convenient level and the management level of the intercommunication of the project cost data in each stage of the construction project are improved, and the capability of the construction project cost consultation service in the whole process is improved.
Meanwhile, based on the module design corresponding to the process, the engineering cost consultation service provider is facilitated to optimize the business process of the whole-process engineering cost consultation service, the standardization and intelligentization level of the engineering cost consultation service is improved, and important technical support is provided for construction of a related knowledge base and a related database for engineering cost consultation service enterprises.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.
FIG. 1 is a frame structure diagram of a BIM-based total process construction cost advisory service system according to an embodiment of the present invention;
fig. 2 is a block diagram illustrating a frame structure of a BIM-based total process construction cost advisory service system according to another embodiment of the present invention.
Reference numerals:
investment decision management module 1, design management module 2, bid and tender management module 3, construction management module 4, completion acceptance management module 5, login module 6, database module 7 and online communication module 8
Detailed Description
The invention is further described in connection with the following application scenarios.
Referring to fig. 1, the embodiment of the invention provides a BIM-based total-process construction cost consultation service system, which comprises: the system comprises an investment decision management module 1, a design management module 2, a bid and tender management module 3, a construction management module 4 and a completion acceptance management module 5; wherein,
the investment decision management module 1 is used for constructing a preliminary three-dimensional model of the engineering project by adopting a BIM technology, adding preliminary cost data according to the constructed preliminary three-dimensional model and acquiring cost estimation information of the engineering project;
the design management module 2 is used for integrating the acquired design scheme and the engineering design approximate calculation information into the preliminary three-dimensional model; determining a final design scheme based on the preliminary three-dimensional model, acquiring an engineering project construction drawing and construction drawing budget corresponding to the final design scheme, and integrating related construction drawing and construction drawing budget information into the preliminary three-dimensional model to obtain an engineering project BIM model;
the bid inviting and bidding management module 3 is used for acquiring the engineering quantity information of the engineering project according to the engineering project BIM model, and formulating and issuing bid inviting information by combining the engineering quantity information; the bid-winning information agreed by the bidding units is managed in a unified manner, and the bid-winning information of different construction parts of the engineering project is integrated into the BIM model of the engineering project;
the construction management module 4 is used for auditing the construction cost of the engineering project in each construction stage in the construction process of the engineering project, adjusting the construction period and the fund plan according to the auditing result of the construction cost, and integrating the adjusted construction period and fund adjustment plan into a BIM (building information modeling) model of the engineering project;
the completion acceptance management module 5 is used for comparing the actual completion condition of the engineering project with the bidding construction drawing, re-pricing the construction part with larger difference, checking the actual engineering quantity in the construction process of the engineering project to obtain the cost adjustment information and integrating the cost adjustment information into the BIM model of the engineering project; and the cost accounting of the engineering project is completed according to the BIM model of the engineering project.
The embodiment of the invention provides a BIM-based whole-process construction cost consultation service system, which provides systematic, professional and whole-process construction cost consultation service for decision stages, design stages, bid stages, construction stages and completion stages of the whole process of a construction engineering project through an investment decision management module 1, a design management module 2, a bid management module 3, a construction management module 4 and a completion acceptance management module 5. Meanwhile, the construction cost information of the engineering project is tracked, managed and visually displayed in time according to the established BIM model, so that efficient data support is provided for the construction project to implement whole-process construction cost control, the difficulty of construction cost consultation service at each stage of the construction project is reduced, and the efficiency of the construction cost consultation service is improved. Moreover, the integrated management of the project cost data is carried out based on the BIM model, so that the convenient level and the management level of the intercommunication of the project cost data in each stage of the construction project are improved, and the capability of the construction project cost consultation service in the whole process is improved.
Meanwhile, based on the module design corresponding to the process, the engineering cost consultation service provider is facilitated to optimize the business process of the whole-process engineering cost consultation service, the standardization and intelligentization level of the engineering cost consultation service is improved, and important technical support is provided for construction of a related knowledge base and a related database for engineering cost consultation service enterprises.
In one embodiment, the investment decision management module 1 comprises a model construction unit, an investment estimation unit and a technical-economic analysis unit; wherein,
the model construction unit is used for constructing a preliminary three-dimensional model of the engineering project based on the BIM technology according to the basic information of the engineering project; the basic information of the engineering project comprises the type, the basic structure, the engineering content and the scale of the engineering project, the building function and the application, the design scheme, the manufacturing cost information of the project location, and the field investigation and survey information;
the investment estimation unit is used for carrying out rough engineering quantity estimation on the engineering project according to the basic information of the engineering project, carrying out preliminary cost estimation on the engineering project according to the rough engineering quantity estimation by combining the reference of the existing project and the existing index type cost data, and obtaining the preliminary cost data;
and the technical-economic analysis unit is used for carrying out technical-economic analysis on the engineering project by combining the primary three-dimensional model and the primary cost data according to the basic information of the engineering project and carrying out technical-economic evaluation on the project.
In a decision stage, a preliminary three-dimensional model is established according to basic information of the engineering project through the investment decision management module 1, the basic information of the engineering project and a related drawing are imported, and the preliminary three-dimensional model is established according to the imported basic information and the related drawing to visually feed back and display the approximate situation of the engineering project. The method is beneficial to the engineering cost consultation service provider to perform technical and economic analysis on all aspects of the engineering project according to the primary three-dimensional model and by combining the basic information of the engineering project and the related drawing, measure and calculate the rough primary cost estimation and confirm the rough investment prediction result; the method is beneficial to preliminarily knowing and initially testing the construction cost information of the engineering project at the initial stage of the development of the engineering project, and provides reference for the subsequent concrete construction cost consultation business management.
In a scene, a project cost consultation service provider refers to cost information similar to a proposed project and single-formula cost of completed similar projects according to a constructed primary three-dimensional model, controls project investment estimation obtained through measurement and calculation within a reasonable error range, and is beneficial to providing reference for a service provider to quickly and accurately compile an investment estimation file and a builder to make investment decisions.
In one embodiment, the design management module 2 includes a design approximation unit and a design drawing budget unit; wherein,
the design approximate calculation unit is used for acquiring the engineering project design scheme and corresponding design approximate calculation information provided by a designer, integrating the design scheme into the preliminary three-dimensional model for display, screening and confirming the final design scheme;
and the design drawing budget unit is used for acquiring the construction drawing according to the final design scheme, carrying out rationality check and quota design on each construction link according to the construction drawing, compiling corresponding construction drawing budget, and integrating the construction drawing and the construction drawing budget information into the primary three-dimensional model to obtain the BIM (building information modeling) model of the engineering project.
In the design stage, the engineering cost consultation service provider integrates the relevant information of the design scheme into the preliminary three-dimensional model for visual display according to the design scheme provided by the designer, so that the service provider and the builder can perform comparative analysis according to the design information and the design approximate calculation information of each design scheme, and the final design scheme can be confirmed; after a construction drawing is formed according to the selected final design scheme, construction drawing budgeting is conducted through the obtained construction drawing; and meanwhile, integrating the finally determined construction drawing and construction drawing budget information of the design scheme into the preliminary three-dimensional model to obtain the BIM model of the engineering project determined by the design scheme.
In one scenario, after determining the real-time optimal project plan through investment decision, the design plan is further optimally designed, for example, to check and modify conflicts existing between different professional design drawings, and strict control is performed in the design stage, including standardized design and quota design for preliminary design, expanded design and construction drawing design. And (4) combining the quota design and the value engineering technology optimization design scheme, compiling to obtain the construction drawing budget and providing support for the construction cost data requirements in the construction cost control and bidding stage.
In one embodiment, bid management module 3 includes a bid planning unit, a bid unit, and a bid management unit; wherein,
the bid inviting planning unit is used for calculating the engineering quantity information of the engineering project according to the BIM model of the engineering project, dividing bid inviting contents and bid inviting sections of the engineering project according to the engineering quantity information and issuing corresponding bid inviting information;
the bid inviting and bidding unit is used for managing bid information of bidding units of each bid inviting and bidding section according to different bid inviting and bidding sections of the engineering project, confirming bid information of each bid inviting and bidding section to obtain bid winning information of different parts, and integrating the bid winning information into the BIM model of the engineering project; wherein the bid winning information comprises contract information, contract amount, payment deadline and the like of the corresponding construction part;
and the bid inviting management unit is used for uniformly managing the bid winning information of each bid inviting bid section of the engineering project to obtain the bid winning price of each part of the engineering project and integrating the bid winning price information into the BIM model of the engineering project.
And in the bid stage, accurately summarizing according to the BIM model in the design stage to obtain the engineering quantity information, and generating an engineering quantity list of the project. Meanwhile, according to the overall plan and arrangement of the engineering project, dividing the engineering plan into different bidding contents and bidding sections, for example, different bidding sections such as earthwork, main body engineering, supporting engineering and material/equipment supply engineering, and bidding each part respectively; after receiving the bidding documents of the bidding units, the bidding document information is managed in a centralized manner, so that the bidding information (such as project content, contract information, total bidding price, construction period and the like) of each bidding unit is evaluated, the winning unit is finally confirmed, and the corresponding contract information (such as project content, winning price, specified construction period and the like) is integrated into the BIM model of the engineering project.
In one scenario, the construction cost consultation service provider accurately summarizes according to the BIM model in the design stage to obtain the engineering quantity information, and generates the engineering quantity list of the project according to the engineering quantity information. And the accurate BIM model data containing the engineering quantity list is sent to the bidding unit together during bidding, so that the completeness of the bidding information is ensured, the bidding unit can conveniently and quickly review the bidding information, and a reasonable and economic bidding strategy is formulated. In addition, in the project bid stage, the BIM technology and the internet are fused on the basis of the constructed BIM model of the engineering project, so that the whole stage is transparent, a bid management department can more easily intervene in the whole bid process, and the duration of the bid stage is shortened.
In one embodiment, the construction management module 4 includes a construction cost auditing unit and a construction adjusting unit; wherein,
the construction cost auditing unit is used for acquiring construction progress and finished engineering quantity information of the engineering project, integrating the acquired construction progress and finished engineering quantity information into a BIM (building information modeling) model of the engineering project, auditing the construction progress of the engineering project according to the acquired construction progress information, and auditing the construction cost of a specific construction part according to the acquired finished engineering quantity information to obtain a corresponding construction cost auditing result;
and the construction adjusting unit is used for adjusting the construction plan and the construction cost when the construction cost auditing result deviates from the construction plan, obtaining construction period adjusting information and construction cost adjusting information and integrating the construction period adjusting information and the construction cost adjusting information into the BIM model of the engineering project.
In the construction stage, the construction condition and the construction progress of the site are integrated into the BIM model of the engineering project according to the construction condition and the construction progress recorded from the construction site of the engineering project, so that the information display of the current construction condition is facilitated. And (4) checking the construction cost according to the completed construction part, when the construction cost and the construction period exceed the allowable range due to the inconsistency between the construction site and the design scheme, managing the engineering change according to the actual condition of the engineering project, and properly adjusting related contents in the project contract to ensure that the project contract is consistent with the actual condition of the engineering project. Meanwhile, the adjustment information is integrated into the BIM model of the engineering project to be updated, so that the real-time tracking of the actual condition of the engineering project is facilitated, the overall period of the engineering project is also facilitated to be controlled, the subsequent construction plan and strategy are adjusted in time, the construction period and the construction cost in the construction stage are also facilitated to be managed in time, the influence of the change of the construction cost is accurately controlled, and the management level of the construction cost consultation service is improved.
In a scene, based on a BIM model of an engineering project, construction conditions and construction progress information of a construction site are imported into the model, and BIM technology is applied to informationizing the checked engineering progress, so that project participation related units can conveniently check the finished engineering quantity, and BIM can be conveniently used for visual supervision and automatic deduction, thereby effectively avoiding the conditions of wrong report, false report and the like of the engineering quantity and enabling the prepayment to be reasonably paid. When the engineering change occurs in the construction stage, the BIM model which is perfect in the design stage is directly utilized to modify the engineering change corresponding place, and the software automatically calculates and generates the engineering quantity difference before and after the change, thereby not only saving the change processing time, but also effectively controlling the change cost.
Meanwhile, with the development of the construction stage, the BIM model of the engineering project is continuously updated and information is input, and the information of the BIM model of the engineering project is continuously improved.
In a scene, a project cost consultation service provider carries out on-site investigation at key nodes and construction stages of an implementation stage, for example, photographing and reserving links which cannot investigate construction contents in the later stage during settlement such as concealed project acceptance and earth excavation, and forming investigation records, thereby laying a good foundation for smooth and accurate settlement. The method has the advantages that data formed in the construction process are collected, sorted and analyzed in time, comprehensive unit price and price combination accounting is conducted in time, changes of construction cost are controlled, segmented settlement is conducted in the construction process, and final cost accounting is conducted uniformly after the project is completed, so that settlement work is completed smoothly.
In one embodiment, the construction cost auditing unit is further configured to obtain image record data of the current construction progress, and integrate the image record data together with the construction progress and the completed engineering quantity information into the engineering project BIM model.
The construction cost auditing unit comprises an image recording unit, and the image recording unit is used for acquiring image recording data and integrating the image recording data into the BIM model of the engineering project.
In one embodiment, the image recording unit includes an image preprocessing unit for preprocessing the acquired image recording data (job site recording pictures) to improve the quality of the image recording data. And the image recording unit integrates the preprocessed image recording data into the BIM model of the engineering project.
In one embodiment, the preprocessing unit preprocesses the acquired image recording data, such as a construction site recording picture, specifically including:
converting the construction site recorded picture from an RGB color space to a Lab color space according to the obtained construction site recorded picture to obtain a brightness component L, a color component a and a color component b of the construction site picture;
counting the brightness components according to the brightness components of the pixels, counting and sequencing the brightness components of the pixels from big to small, and acquiring the brightness component value L sequenced in 20% of the total number of the pixels (from big to small, 20%) 20％ And based on the obtained brightness component value L 20％ Setting a process threshold Y, where Y ═ max (L) 20％ -10,0.9L 20％ )；
Based on the brightness component value L (x, Y) of each pixel point, marking the pixel points of which the brightness component value L (x, Y) is more than or equal to Y as bright pixel points, counting a bright pixel point set M according to the marked bright pixel points, marking the pixel points of which the brightness component value L (x, Y) is less than Y as dark pixel points, and counting a dark pixel point set H according to the marked dark pixel points;
respectively counting the number N of the pixels contained in the bright pixel set M M And counting the number N of pixels contained in the gray-dark pixel point set H H When N is present M ＞1.5N H And then, carrying out first brightness adjustment processing on the construction site picture, wherein the adopted first brightness adjustment function is as follows:
in the formula, L' (x, y) represents a luminance component value of the pixel (x, y) after the first luminance adjustment processing, L (x, y) represents a luminance component value of the pixel (x, y), and (x, y) e M represents a pixelThe point belongs to a bright pixel point set, and (x, y) belongs to H to indicate that the pixel point belongs to a dark pixel point set; l is s Indicates a set standard bright component value, where L s ∈[65,70]And a represents a set amplitude adjustment factor, wherein a is equal to 0.1,1]And beta represents an anti-distortion adjustment factor, wherein beta is equal to [1,1.15 ]]；
When N is present H ＞1.5N M And then, carrying out second brightness adjustment processing on the construction site picture, wherein the adopted second brightness adjustment function is as follows:
in the formula, L' (x, y) represents the luminance component value of the pixel (x, y) after the second luminance adjustment processing, L (x, y) represents the luminance component value of the pixel (x, y), (x, y) e M represents that the pixel belongs to a bright pixel set, and (x, y) e H represents that the pixel belongs to a dark pixel set; l is s Indicates a set standard bright component value, where L s ∈[65,70]And gamma denotes a modulation amplitude adjustment factor, wherein gamma is equal to 10,25]And delta denotes the distortion-prevention adjustment factor, where delta e [1.1,1.2 ]]；
When N is present M ≤1.5N H Or N H ≤1.5N M And then, performing third brightness adjustment processing on the construction site picture, wherein the adopted third brightness adjustment function is as follows:
wherein L' (x, y) represents a luminance component value of the pixel point (x, y) after the third luminance adjustment processing, L 3×3 (x, y) represents a neighborhood centered on the pixel point (x, y)
Luminance mean of, where neighborhoods
Is 3 × 3, 5 × 5 with (x, y) as centerOr a 7 × 7 region; l is s Represents a set standard bright component value;
and converting the brightness component L' and the color component a and the color component b into an RGB color space again according to the continuous reading adjustment to obtain a preprocessed construction site recorded picture.
In the embodiment, a technical scheme for preprocessing a picture in a construction site is provided, wherein firstly, a brightness component of the picture in the construction site is obtained, and the brightness distribution condition of the picture is judged according to the brightness component information of the picture in the construction site; according to different brightness distribution conditions, a corresponding brightness adjustment processing function is provided to perform self-adaptive adjustment on the brightness of the image, so that the overall brightness condition of the picture in the construction site can be effectively enhanced, and the definition of the picture is improved.
In one embodiment, an as built accounting unit and an engineering accounting unit; wherein,
the completion accounting unit is used for comparing the actual construction condition of the engineering project with the construction drawing, carrying out construction cost accounting on the construction part subjected to construction adjustment in the actual construction process again, calculating the actual engineering quantity according to the record of the actual construction condition, carrying out re-pricing on the construction part according to the change information between the actual engineering quantity and the planned engineering quantity and combining contract appointment information, and integrating updated pricing information of the construction part into the BIM model of the engineering project;
and the project accounting unit is used for accounting the construction cost of the whole project based on the project BIM model to obtain the total construction cost information of the project.
And in the completion stage, comparing and analyzing the actual construction condition of the engineering project and the bidding construction drawing according to the reaction of the BIM model of the engineering project, performing accounting according to the difference between the actual construction condition and the construction drawing, acquiring related pricing information, and integrating the acquired pricing information into the BIM model of the engineering project for updating. And after the accounting of each construction part is completed, further completing the cost accounting of the whole engineering project based on the BIM model of the engineering project, and comparing and analyzing the final cost accounting result with the planned investment information to obtain a related auditing result.
In one scenario, through the perfection of multiple stage models and information, a BIM model in a completion stage can already reflect the condition of an engineering project entity, and the final cost of the project is determined according to the actual occurrence amount of the completed project, so that a reasonable and accurate completion settlement book is compiled. Meanwhile, the data related to the BIM model of the engineering project are filed, stored and managed, so that the subsequent checking and rechecking requirements are facilitated, the construction of a knowledge base is facilitated, and a reference is provided for the subsequent whole-process cost consultation service.
In one embodiment, referring to fig. 2, the system further comprises a login module 6;
the login module 6 is used for logging in the system by a construction project cost consultant user and carrying out whole-process construction cost consultation service on the construction project through a corresponding module; and the construction party, the bid inviting party, the construction party and other related users log in the system and access the BIM model of the engineering project corresponding to the engineering project to obtain related information.
In one embodiment, the login module 6 comprises a login unit and a rights management unit; wherein,
the login unit is used for verifying the identity information of a login user, and allowing the user to login the system after the identity verification is passed;
the authority management unit is used for acquiring authority management information corresponding to the login user and limiting the access or management authority of the user according to the authority management information.
In one embodiment, the system further includes an online communication module 8;
the online communication module 8 is used for the service provider user and other users (such as a constructor, a supervisor, a designer, a reconnaissance, a constructor, etc.) to perform real-time communication, so as to meet the multi-party communication requirement required in the whole process of engineering cost consultation service.
In one embodiment, the system further comprises a database module 7;
the database module 7 is used for carrying out classified storage management on the relevant information corresponding to the engineering project, and comprises the step of carrying out unified storage management on the BIM model of the engineering project and the relevant information generated in the whole process of cost consultation service.
According to the BIM-based total process construction cost consultation service system shown in the figure 1, the invention also provides a BIM-based total process construction cost consultation service method, which comprises the following steps:
building a preliminary three-dimensional model of the engineering project by adopting a BIM technology, and adding preliminary construction cost data according to the built preliminary three-dimensional model to obtain construction cost estimation information of the engineering project;
integrating the design scheme and the engineering design approximate calculation information into a preliminary three-dimensional model according to the acquired design scheme and the engineering design approximate calculation information; determining a final design scheme based on the preliminary three-dimensional model, acquiring an engineering project construction drawing and construction drawing budget corresponding to the final design scheme, and integrating related construction drawing and construction drawing budget information into the preliminary three-dimensional model to obtain an engineering project BIM model;
acquiring the engineering quantity information of the engineering project according to the BIM model of the engineering project, and formulating and issuing bid information by combining the engineering quantity information; the bid-winning information agreed by the bidding units is managed in a unified manner, and the bid-winning information of different construction parts of the engineering project is integrated into the BIM model of the engineering project;
in the construction process of the engineering project, checking the construction cost of each construction stage of the engineering project, adjusting the construction period and the fund plan according to the construction cost checking result, and integrating the adjusted construction period and fund adjustment plan into a BIM (building information modeling) model of the engineering project;
comparing the actual completion condition of the engineering project with the bidding construction drawing, re-pricing construction parts with larger differences, checking the actual engineering quantity in the construction process of the engineering project to obtain cost adjustment information, and integrating the cost adjustment information into a BIM (building information modeling) model of the engineering project; and the cost accounting of the engineering project is completed according to the BIM model of the engineering project.
In the above embodiment, the engineering cost advisory service provider provides engineering cost advisory technical services in the whole process for the decision phase, the design phase, the bid inviting phase, the construction phase and the completion phase of the whole process of the engineering project through the investment decision management module, the design management module, the bid inviting management module, the construction management module and the completion acceptance management module respectively. The method is beneficial to providing complete whole-process engineering cost consultation business service for the construction engineering project by the engineering cost consultation enterprise, carrying out timely tracking, management and visual display on the construction cost information of the engineering project according to the established BIM model, providing efficient data support for implementing whole-process cost control of the engineering project, reducing the difficulty of the engineering cost consultation service at each stage of the construction project and improving the efficiency of the construction cost consultation service. Moreover, the integrated management of the project cost data is carried out based on the BIM model, so that the convenient level and the management level of the intercommunication of the project cost data in each stage of the construction project are improved, and the capability of the construction project cost consultation service in the whole process is improved.
It should be noted that, functional units/modules in the embodiments of the present invention may be integrated into one processing unit/module, or each unit/module may exist alone physically, or two or more units/modules are integrated into one unit/module. The integrated units/modules may be implemented in the form of hardware, or may be implemented in the form of software functional units/modules.
From the above description of the embodiments, it is clear for a person skilled in the art that the embodiments described herein can be implemented in hardware, software, firmware, middleware, code or any appropriate combination thereof. For a hardware implementation, a processor may be implemented in one or more of the following units: an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a processor, a controller, a microcontroller, a microprocessor, other electronic units designed to perform the functions described herein, or a combination thereof. For a software implementation, some or all of the procedures of an embodiment may be performed by a computer program instructing associated hardware. In practice, the program may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a computer. Computer-readable media can include, but is not limited to, RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be analyzed by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. A BIM-based total process cost consultation service system, comprising: the system comprises an investment decision management module, a design management module, a bid and tender inviting management module, a construction management module and a completion acceptance management module; wherein,
the investment decision management module is used for constructing a preliminary three-dimensional model of the engineering project by adopting a BIM technology, adding preliminary cost data according to the constructed preliminary three-dimensional model and acquiring cost estimation information of the engineering project;
the design management module is used for integrating the obtained design scheme and the engineering design approximate calculation information into the preliminary three-dimensional model; determining a final design scheme based on the preliminary three-dimensional model, acquiring an engineering project construction drawing and construction drawing budget corresponding to the final design scheme, and integrating related construction drawing and construction drawing budget information into the preliminary three-dimensional model to obtain an engineering project BIM model;
the bid inviting and bidding management module is used for acquiring the engineering quantity information of the engineering project according to the engineering project BIM model and formulating and issuing bid inviting information by combining the engineering quantity information; the bid-winning information appointed by the bidding units is managed in a unified mode, and the bid-winning information of different construction parts of the engineering project is integrated into the BIM model of the engineering project;
the construction management module is used for auditing the construction cost of each construction stage of the engineering project in the construction process of the engineering project, adjusting the construction period and the fund plan according to the construction cost auditing result and integrating the adjusted construction period and fund adjustment plan into a BIM (building information modeling) model of the engineering project;
the completion acceptance management module is used for comparing the actual completion condition of the engineering project with the bidding construction drawing, re-pricing the construction part with larger difference, checking the actual engineering quantity in the construction process of the engineering project to obtain the cost adjustment information and integrating the cost adjustment information into the BIM model of the engineering project; and the cost accounting of the engineering project is completed according to the BIM model of the engineering project.
2. The BIM-based total process construction cost consultation service system of claim 1, wherein the investment decision management module comprises a model construction unit, an investment estimation unit and a technical-economic analysis unit; wherein,
the model construction unit is used for constructing a preliminary three-dimensional model of the engineering project based on the BIM technology according to the basic information of the engineering project; the basic information of the engineering project comprises the type, the foundation structure, the engineering content and the scale, the building function and the application, the design scheme, the construction cost information of the project location, and the field investigation and survey information of the engineering project;
the investment estimation unit is used for carrying out rough engineering quantity estimation on the engineering project according to the basic information of the engineering project, and carrying out preliminary cost estimation on the engineering project according to the rough engineering quantity estimation by combining the reference data of the existing project and the existing index type cost data to obtain preliminary cost data;
and the technical-economic analysis unit is used for carrying out technical-economic analysis on the engineering project by combining the primary three-dimensional model and the primary cost data according to the basic information of the engineering project and carrying out technical-economic evaluation on the project.
3. The BIM-based total process construction cost advisory service system as claimed in claim 1, wherein the design management module comprises a design approximate calculation unit and a design drawing budget unit; wherein,
the design approximate calculation unit is used for acquiring the engineering project design scheme and corresponding design approximate calculation information provided by a designer, integrating the design scheme into the preliminary three-dimensional model for display, screening and confirming the final design scheme;
and the design drawing budget unit is used for acquiring the construction drawing according to the final design scheme, carrying out rationality check according to the construction drawing, carrying out quota design on each construction link, compiling corresponding construction drawing budget, and integrating the construction drawing and the construction drawing budget information into the primary three-dimensional model to obtain the BIM model of the engineering project.
4. The BIM-based total process construction cost consultation service system of claim 1, wherein the bid management module comprises a bid planning unit, a bid unit and a bid management unit; wherein,
the bid inviting planning unit is used for calculating the engineering quantity information of the engineering project according to the BIM model of the engineering project, dividing bid inviting contents and bid inviting sections of the engineering project according to the engineering quantity information and issuing corresponding bid inviting information;
the bid inviting and bidding unit is used for managing bid information of bidding units of each bid inviting and bidding section according to different bid inviting and bidding sections of the engineering project, confirming bid information of each bid inviting and bidding section to obtain bid winning information of different parts, and integrating the bid winning information into the BIM model of the engineering project; wherein the bid winning information comprises contract information, contract amount and payment deadline of the corresponding construction part;
and the bid inviting management unit is used for uniformly managing the bid winning information of each bid inviting bid section of the engineering project to obtain the bid winning price of each part of the engineering project and integrating the bid winning price information into the BIM model of the engineering project.
5. The BIM-based whole-process construction cost advisory service system according to claim 1, wherein the construction management module comprises a construction cost auditing unit and a construction adjusting unit; wherein,
the construction cost auditing unit is used for acquiring the construction progress and the completed engineering quantity information of the engineering project, integrating the acquired construction progress and the completed engineering quantity information into the BIM model of the engineering project, auditing the construction progress of the engineering project according to the acquired construction progress information, and auditing the construction cost of a specific construction part according to the acquired completed engineering quantity information to obtain a corresponding construction cost auditing result;
and the construction adjusting unit is used for adjusting the construction plan and the construction cost when the construction cost auditing result deviates from the construction plan, obtaining construction period adjusting information and construction cost adjusting information and integrating the construction period adjusting information and the construction cost adjusting information into the BIM model of the engineering project.
6. The BIM-based whole process construction cost advisory service system as claimed in claim 1, wherein the completion accounting unit and the engineering accounting unit; wherein,
the completion accounting unit is used for comparing the actual construction condition of the engineering project with the construction drawing, carrying out construction cost accounting on the construction part subjected to construction adjustment in the actual construction process again, calculating the actual engineering quantity according to the record of the actual construction condition, carrying out re-pricing on the construction part according to the change information between the actual engineering quantity and the planned engineering quantity and combining contract appointment information, and integrating updated pricing information of the construction part into the BIM model of the engineering project;
and the project accounting unit is used for accounting the construction cost of the whole project based on the project BIM model to obtain the total construction cost information of the project.
7. The BIM-based total process cost advisory services system as claimed in claim 1 further comprising a logging module;
the login module is used for logging in the system by a construction project cost consultant user and carrying out whole-process construction cost consultation service on the construction project through the corresponding module; and the relevant users of the construction party, the bid inviting party and the construction party log in the system and access the BIM model of the engineering project corresponding to the engineering project to obtain the relevant information.
8. The BIM-based total process cost advisory services system as claimed in claim 7 wherein the login module comprises a login unit and a rights management unit; wherein,
the login unit is used for verifying the identity information of a login user, and allowing the user to login the system after the identity information passes the verification;
the authority management unit is used for acquiring authority management information corresponding to the login user and limiting the access or management authority of the user according to the authority management information.
9. The consulting service method of BIM-based whole process construction cost consulting service system of claim 1 to 8, which comprises:
building a preliminary three-dimensional model of the engineering project by adopting a BIM technology, and adding preliminary construction cost data according to the built preliminary three-dimensional model to obtain construction cost estimation information of the engineering project;
integrating the design scheme and the engineering design approximate calculation information into a preliminary three-dimensional model according to the acquired design scheme and the engineering design approximate calculation information; determining a final design scheme based on the preliminary three-dimensional model, acquiring an engineering project construction drawing and construction drawing budget corresponding to the final design scheme, and integrating related construction drawing and construction drawing budget information into the preliminary three-dimensional model to obtain an engineering project BIM model;
acquiring the engineering quantity information of the engineering project according to the BIM model of the engineering project, and formulating and issuing bid inviting information by combining the engineering quantity information; the bid-winning information agreed by the bidding units is managed in a unified manner, and the bid-winning information of different construction parts of the engineering project is integrated into the BIM model of the engineering project;
in the construction process of the engineering project, carrying out construction cost audit on each construction stage of the engineering project, adjusting the construction period and the fund plan according to the construction cost audit result, and integrating the adjusted construction period and fund adjustment plan into a BIM (building information modeling) model of the engineering project;
comparing the actual completion condition of the engineering project with the bidding construction drawing, re-pricing the construction part with larger difference, accounting the actual engineering quantity in the construction process of the engineering project to obtain cost adjustment information, and integrating the cost adjustment information into a BIM (building information modeling) model of the engineering project; and the cost accounting of the engineering project is completed according to the BIM model of the engineering project.
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