CN115034911B - BIM-based whole-process cost consultation service method and system - Google Patents
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Abstract
The invention provides a whole process cost consultation service method and a system based on BIM, wherein the system comprises the following steps: the investment decision management module is used for adding preliminary cost data according to the constructed preliminary three-dimensional model to acquire cost estimation information of engineering projects; the design management module is used for determining a final design scheme to obtain a project BIM model; the bidding management module is used for formulating and releasing bidding information; integrating bid-winning information of different construction parts of the engineering project into a BIM model of the engineering project; the construction management module is used for auditing construction cost of each construction stage of the engineering project and adjusting construction period and fund plan; the completion acceptance management module is used for comparing the actual completion situation of the engineering project with the bid-signing construction drawing to obtain cost adjustment information, and integrating the cost adjustment information into the engineering project BIM model; the invention improves the convenient level and the management level of the data intercommunication of the engineering cost at each stage and improves the capability of the construction project whole process cost consultation service.
Description
Technical Field
The invention relates to the technical field of construction cost consultation services, in particular to a whole-process construction cost consultation service method and system based on BIM.
Background
Currently, engineering cost advisory services have been scaled up in the international market. Foreign engineering construction project cost consulting service starts earlier and has abundant engineering cost consulting service experience. The cost consultation service industry in China is not mature compared with overseas development. Along with the development trend of large construction scale, high complexity and large investment sum of engineering construction projects in China, at present, the traditional staged single construction cost consultation business entrusting service mode is easy to generate the conditions of different information among engineering cost consultation stages, inaccurate data, low management efficiency and the like, and cannot meet the development requirements of the modern engineering cost consultation business market.
Disclosure of Invention
In view of the above, the present invention is directed to a whole process cost consulting service method and system based on BIM.
The aim of the invention is realized by adopting the following technical scheme:
in a first aspect, a whole process cost consulting service system based on BIM is provided, including: the system comprises an investment decision management module, a design management module, a bid and tender 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 engineering design general 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 a 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) of the engineering project;
the bid-bidding management module is used for acquiring engineering quantity information of the engineering project according to the engineering project BIM model, and formulating and releasing bid-bidding information in combination with the engineering quantity information; the bid winning information agreed by the bidding unit is uniformly managed, and bid winning information of different construction parts of the engineering project is integrated into the engineering project BIM model;
the construction management module is used for auditing the construction cost of the engineering project at 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 the fund adjustment plan into the engineering project BIM model;
The completion acceptance management module is used for comparing actual completion conditions of the engineering project with the bid-inviting construction drawing, re-pricing construction parts with larger differences, accounting actual engineering quantity in the engineering project construction process, obtaining cost adjustment information, and integrating the cost adjustment information into the engineering project BIM model; and finishing the cost accounting of the engineering project according to the engineering project BIM model.
In one embodiment, the investment decision management module comprises a model construction unit, an investment estimation unit and a technical economy 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, basic structure, engineering content and scale, building function and use, design scheme, project site cost information, site 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, carrying out preliminary construction cost estimation on the engineering project according to the rough engineering quantity estimation by combining the existing project reference data and the existing index type construction cost data, and carrying out preliminary construction cost data;
The technical and economic analysis unit is used for carrying out technical and economic analysis on the engineering project according to the basic information of the engineering project and combining the preliminary three-dimensional model and the preliminary cost data, and carrying out technical and economic evaluation on the project.
In one embodiment, a design management module includes a design overview unit and a design diagram budgeting unit; wherein,,
the design general calculation unit is used for acquiring engineering project design schemes and corresponding design general calculation information provided by a design party, integrating the design schemes into a preliminary three-dimensional model for display, screening and confirming final design schemes;
the design drawing budget unit is used for acquiring a construction drawing according to a 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 construction drawing budget information into the preliminary three-dimensional model to obtain the engineering project BIM model.
In one embodiment, the bid management module includes a bid planning unit, a bid unit, and a bid management unit; wherein,,
the bid-bidding planning unit is used for calculating engineering quantity information of the engineering project according to the engineering project BIM model, and issuing corresponding bid-bidding information for bid-bidding content and bid-bidding segments of the divided engineering project according to the engineering quantity information;
The bid-bidding unit is used for managing bid-bidding information of bidding units of each bid-bidding section according to different bid-bidding sections of the engineering project, confirming the bid-bidding information of each bid-bidding section to obtain bid-bidding information of different parts, and integrating the bid-bidding information into the engineering project BIM model; wherein the bid-winning information includes contract information, contract amount, payment term and the like of the corresponding construction part;
the bid-bidding management unit is used for uniformly managing bid-winning information of each bid-bidding section of the engineering project to obtain bid-winning prices of each part of the engineering project, and integrating the bid-winning price information into the engineering project BIM model.
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 construction progress and finished engineering quantity information of the engineering project, integrating the acquired construction progress and the finished engineering quantity information into an engineering project BIM model, 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;
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 a project BIM model.
In one embodiment, a completion 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 diagram, re-accounting the construction part subjected to construction adjustment in the actual construction process, calculating the actual engineering quantity according to the record of the actual construction condition, re-accounting the construction part according to the change information between the actual engineering quantity and the planned engineering quantity in combination with contract information, and integrating updated pricing information of the construction part into the engineering project BIM;
the project accounting unit is used for accounting the cost of the whole project based on the project BIM model to obtain the total cost information of the project.
In one embodiment, the system further comprises a login module;
the login module is used for allowing a user of the construction project cost consultant to log in the system and carrying out whole-process construction cost consultation service on the construction project through the corresponding module; and the construction party, the bidding party and the construction Fang Dengxiang are used for logging in the system by the user, accessing the engineering project BIM model corresponding to the engineering project and obtaining related information.
In one embodiment, 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 log in 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, a method for providing a whole process cost consulting service system based on BIM according to any one of the embodiments of the first aspect includes:
constructing a preliminary three-dimensional model of the engineering project by adopting a BIM technology, and adding preliminary cost data according to the constructed preliminary three-dimensional model to acquire cost estimation information of the engineering project;
integrating the obtained design scheme and engineering design general calculation information into a preliminary three-dimensional model; determining a final design scheme based on the preliminary three-dimensional model, acquiring a construction drawing and a 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) of the engineering project;
acquiring engineering quantity information of an engineering project according to an engineering project BIM model, and formulating and releasing bid information by combining the engineering quantity information; the bid winning information agreed by the bidding unit is uniformly managed, and bid winning information of different construction parts of the engineering project is integrated into the engineering project BIM model;
In the construction process of the engineering project, auditing the engineering cost at each construction stage of the engineering project, adjusting the construction period and the fund plan according to the auditing result of the engineering cost, and integrating the adjusted construction period and the fund adjustment plan into a BIM 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 the engineering project BIM; and finishing the cost accounting of the engineering project according to the engineering project BIM model.
The beneficial effects of the invention are as follows: the invention provides a BIM-based whole-process cost consulting service method and system, which respectively provide systematic, specialized and whole-process engineering cost consulting service for decision-making stage, design stage, bidding stage, construction stage and completion stage of the whole process of a construction project through a set investment decision-making management module, a design management module, a bidding management module, a construction management module and a completion acceptance management module. Meanwhile, the construction project cost information is tracked, managed and visually displayed in time according to the built BIM model, so that efficient data support is provided for whole process cost control of the construction project, difficulty in construction project cost consultation service at each stage of construction project is reduced, and efficiency of the construction cost consultation service is improved. And moreover, the integrated management of the engineering cost data based on the BIM model improves the convenient level and the management level of the engineering cost data intercommunication of each stage of the construction engineering, and improves the capability of the construction project whole-process cost consultation service.
Meanwhile, based on the module design corresponding to the flow, the engineering cost consultation service provider is helped to optimize the business flow of the whole process engineering cost consultation service, the standardization and intelligence level of the engineering cost consultation service is improved, and important technical support is provided for construction of a relevant knowledge base and a database by an engineering cost consultation service enterprise.
Drawings
The invention will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the invention, and other drawings can be obtained by one of ordinary skill in the art without inventive effort from the following drawings.
FIG. 1 is a block diagram of a whole process cost advisory service system based on BIM in accordance with an embodiment of the present invention;
fig. 2 is a frame construction diagram of a whole process cost consulting service system based on BIM according to another embodiment of the present invention.
Reference numerals:
investment decision management module 1, design management module 2, bid and bid 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 scenario.
Referring to fig. 1, an overall process cost consulting service system based on BIM is shown, comprising: investment decision management module 1, design management module 2, bid and tender management module 3, construction management module 4 and 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 obtained design scheme and engineering design general 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 a 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) of the engineering project;
the bid-inviting management module 3 is used for acquiring engineering quantity information of engineering projects according to the engineering project BIM model, and formulating and issuing bid-inviting information in combination with the engineering quantity information; the bid winning information agreed by the bidding unit is uniformly managed, and bid winning information of different construction parts of the engineering project is integrated into the engineering project BIM model;
The construction management module 4 is used for checking the construction cost of the engineering project in 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 checking result of the construction cost, and integrating the adjusted construction period and the adjusted fund adjustment plan into the BIM model of the engineering project;
the completion acceptance management module 5 is used for comparing actual completion conditions of the engineering project with the bid-inviting construction drawing, re-pricing construction parts with larger differences, accounting actual engineering quantity in the engineering project construction process, obtaining cost adjustment information, and integrating the cost adjustment information into the engineering project BIM model; and finishing the cost accounting of the engineering project according to the engineering project BIM model.
The above embodiment of the present invention provides a BIM-based whole process cost consulting service system, which provides systematic, specialized and whole process engineering cost consulting services for decision stage, design stage, bidding stage, construction stage and completion stage of the whole process of construction engineering project through the set investment decision management module 1, design management module 2, bidding management module 3, construction management module 4 and completion acceptance management module 5, respectively. Meanwhile, the construction project cost information is tracked, managed and visually displayed in time according to the built BIM model, so that efficient data support is provided for whole process cost control of the construction project, difficulty in construction project cost consultation service at each stage of construction project is reduced, and efficiency of the construction cost consultation service is improved. And moreover, the integrated management of the engineering cost data based on the BIM model improves the convenient level and the management level of the engineering cost data intercommunication of each stage of the construction engineering, and improves the capability of the construction project whole-process cost consultation service.
Meanwhile, based on the module design corresponding to the flow, the engineering cost consultation service provider is helped to optimize the business flow of the whole process engineering cost consultation service, the standardization and intelligence level of the engineering cost consultation service is improved, and important technical support is provided for construction of a relevant knowledge base and a database by an engineering cost consultation service enterprise.
In one embodiment, the investment decision management module 1 comprises a model construction unit, an investment estimation unit and a technical economy 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, basic structure, engineering content and scale, building function and use, design scheme, project site cost information, site 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, carrying out preliminary construction cost estimation on the engineering project according to the rough engineering quantity estimation by combining the existing project reference and the existing index type construction cost data, and carrying out preliminary construction cost data;
The technical and economic analysis unit is used for carrying out technical and economic analysis on the engineering project according to the basic information of the engineering project and combining the preliminary three-dimensional model and the preliminary cost data, and carrying out technical and economic evaluation on the project.
In the decision stage, a preliminary three-dimensional model is established according to basic information of engineering projects through the investment decision management module 1, the preliminary three-dimensional model comprises the introduction of basic information and related drawings of the engineering projects, and the preliminary three-dimensional model is established according to the introduced basic information and the related drawings so as to intuitively feed back and display the approximate conditions of the engineering projects. The method is beneficial to the engineering cost consultation service provider to carry out technical and economic analysis on all aspects of the engineering project according to the preliminary three-dimensional model and combining basic information and related drawings of the engineering project, calculate rough preliminary cost estimation and confirm rough investment prediction results; the method is beneficial to preliminary understanding and preliminary testing of the construction cost information of the engineering project in the initial stage of developing the engineering project, and provides reference for the management of the follow-up concrete construction cost consultation service.
In a scene, according to the constructed preliminary three-dimensional model, the project cost consultation service provider refers to cost information similar to the built project and unilateral cost of the completed similar project, and the project investment estimation obtained through calculation is controlled within a reasonable error range, so that the investment estimation file can be quickly and accurately compiled for the service provider, and the investment decision can be provided for the constructor to provide references.
In one embodiment, the design management module 2 includes a design overview unit and a design diagram budgeting unit; wherein,,
the design general calculation unit is used for acquiring engineering project design schemes and corresponding design general calculation information provided by a design party, integrating the design schemes into a preliminary three-dimensional model for display, screening and confirming final design schemes;
the design drawing budget unit is used for acquiring a construction drawing according to a 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 construction drawing budget information into the preliminary three-dimensional model to obtain the engineering project BIM model.
In the design stage, the engineering cost consultation service provider integrates relevant information of the design scheme into a preliminary three-dimensional model for visual display according to the design scheme provided by the design party, so that the service provider and the constructor can carry out comparison analysis according to the design information and the design general calculation information of each design scheme, and the confirmation of the final design scheme is assisted; after forming a construction drawing according to the selected final design scheme, carrying out construction drawing budget planning through the obtained construction drawing; and meanwhile, integrating the construction diagram and the construction diagram budget information of the finally determined design scheme into the preliminary three-dimensional model to obtain the engineering project BIM model determined by the design scheme.
In one scenario, after determining the real-time optimal solution of the project through investment decision, further optimizing design is performed on the design solution, for example, conflict existing between different professional design drawings is checked and modified, strict control is performed in the design stage, and standardized design and quota design are performed on the primary design, the expanded design and the construction drawing design. And combining limit design and value engineering technology to optimize design scheme, compiling to obtain construction drawing budget, and providing support for cost control and cost data requirement in bidding stage.
In one embodiment, the bid management module 3 includes a bid planning unit, a bid unit, and a bid management unit; wherein,,
the bid-bidding planning unit is used for calculating engineering quantity information of the engineering project according to the engineering project BIM model, and issuing corresponding bid-bidding information for bid-bidding content and bid-bidding segments of the divided engineering project according to the engineering quantity information;
the bid-bidding unit is used for managing bid-bidding information of bidding units of each bid-bidding section according to different bid-bidding sections of the engineering project, confirming the bid-bidding information of each bid-bidding section to obtain bid-bidding information of different parts, and integrating the bid-bidding information into the engineering project BIM model; wherein the bid-winning information includes contract information, contract amount, payment term and the like of the corresponding construction part;
The bid-bidding management unit is used for uniformly managing bid-winning information of each bid-bidding section of the engineering project to obtain bid-winning prices of each part of the engineering project, and integrating the bid-winning price information into the engineering project BIM model.
And in the bidding stage, accurately summarizing according to the BIM model in the design stage to obtain 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, into different bidding sections of earthwork, main engineering, matched engineering, material/equipment supply engineering and the like, and respectively bidding all parts; after receiving the bidding books of the bidding units, the bidding information is centrally managed, so that the bidding information (such as project content, contract information, bidding total price, construction period and the like) of each bidding unit is reviewed, the bidding units are finally confirmed, and the corresponding contract information (such as project content, bidding price, specified construction period and the like) is integrated into the engineering project BIM model.
In a scene, an engineering cost consultation service provider performs accurate summarization according to a BIM model in a design stage to obtain engineering quantity information, and generates an engineering quantity list of projects according to the engineering quantity information. And when bidding is carried out, BIM model data which is accurate and contains an engineering quantity list is sent to a bidding unit, so that the integrity of bidding information is ensured, and the bidding unit can rapidly review the bidding information, thereby preparing a reasonable and economical bidding strategy. In addition, in the project bidding stage, based on the constructed engineering project BIM model, the BIM technology is fused with the Internet, so that the whole stage is open and transparent, and a bidding management department can more easily intervene in the whole bidding process, thereby shortening the duration of the bidding stage.
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 the finished engineering quantity information into an engineering project BIM model, 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;
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 a project BIM model.
In the construction stage, according to the engineering construction condition and the construction progress condition recorded from the engineering project construction site, the site construction condition and the construction progress are integrated into an engineering project BIM model, so that informatization display of the current construction condition is facilitated. And (3) carrying out engineering cost examination according to the completed construction part, and when the engineering cost and the construction period exceed the allowable range due to the fact that the construction site and the design scheme are not matched, managing engineering change according to the actual condition of an engineering project, and properly adjusting related contents in a project contract to ensure that the engineering change is matched with the actual condition of the engineering project. Meanwhile, the adjustment information is integrated into the engineering project BIM model to update, so that the real situation of the engineering project is tracked in time, the whole period of the engineering project is controlled, the subsequent construction plan and strategy are adjusted in time, the construction period and the construction cost of the construction stage are managed in time, the influence of the change of the engineering cost is controlled accurately, and the management level of the engineering cost consultation service is improved.
In a scene, based on an engineering project BIM model, construction condition and construction progress information of a construction site are imported into the model, and the BIM technology is applied to informatize the verified engineering progress, so that project participation related units can conveniently check according to the completed engineering quantity, visual supervision and automatic deduction can be conveniently carried out by using the BIM, and therefore conditions of engineering quantity misinformation, false alarm and the like are effectively avoided, and prepaid payment is reasonable. When engineering change occurs in the construction stage, the BIM model with perfect design stage is directly utilized to modify the position corresponding to the engineering change, and the engineering quantity difference before and after the change is automatically calculated and generated by software, so that the change processing time is saved, and the change cost is effectively controlled.
Meanwhile, along with development of a construction stage, the engineering project BIM model is continuously updated and information is recorded, and the information of the engineering project BIM model is continuously perfected.
In a scene, an engineering cost consultation service provider performs on-site investigation at key nodes of an implementation stage and each construction stage, for example, photographs and reserves links which cannot be investigated for construction contents in the later stage when settlement such as hidden engineering acceptance and earthwork excavation is carried out, forms investigation records, and lays a good foundation for smooth and accurate settlement. The data formed in the construction process are collected, arranged and analyzed in time, comprehensive unit price and price closing accounting are performed in time, the change of the construction cost is controlled, the sectional settlement is performed in the construction process, and final cost accounting is uniformly performed after completion of the project, so that settlement work is smoothly completed.
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 into the project BIM model along with the construction progress and the completed project amount information.
The manufacturing cost checking unit comprises an image recording unit, wherein the image recording unit is used for acquiring image recording data and integrating the image recording data into the engineering project BIM model.
In one embodiment, the image recording unit includes an image preprocessing unit for preprocessing acquired image recording data (job site recorded pictures) to improve the quality of the image recording data. The image recording unit integrates the preprocessed image recording data into the engineering project BIM model.
In one embodiment, the preprocessing unit performs preprocessing on acquired image recording data, such as a recorded picture of a construction site, and specifically includes:
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 each pixel point, sorting the brightness components of each pixel point from large to small, and obtaining Taking the brightness component value L of 20 percent (from big to small to the front 20 percent) of the total number of pixel points 20％ And based on the obtained brightness component value L 20％ A processing threshold Y is set, where y=max (L 20％ -10,0.9L 20％ )；
Based on brightness component values L (x, Y) of all pixel points, marking the pixel points with brightness component values L (x, Y) not less than Y as bright pixel points, counting a bright pixel point set M according to the marked bright pixel points, marking the pixel points with brightness component values L (x, Y) 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 point set M M And counting the number N of pixels contained in the dark pixel point set H H When N 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:
wherein L' (x, y) represents a luminance component value of the pixel (x, y) after the first luminance adjustment process, L (x, y) represents a 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 (L) s Represents a set standard brightness component value, where L s ∈[65,70]A represents a set amplitude adjustment factor, where a ε [0.1,1 ] ]Beta represents an anti-distortion adjustment factor, where beta ε [1,1.15 ]]；
When N is 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:
wherein L' (x, y) represents the brightness component value of the pixel point (x, y) after the second brightness adjustment processing, and L (x, y) is represented byA luminance component value showing pixel (x, y)/(y) ∈m indicating that the pixel belongs to a bright pixel set, and (x, y) ∈h indicating that the pixel belongs to a dark pixel set; l (L) s Represents a set standard brightness component value, where L s ∈[65,70]Gamma represents the regulating amplitude regulating factor, wherein gamma is 10,25]Delta represents an anti-distortion adjustment factor, where delta e [1.1,1.2]；
When N is M ≤1.5N H Or N H ≤1.5N M And then carrying out third brightness adjustment processing on the construction site picture, wherein the adopted third brightness adjustment function is as follows:
wherein L' (x, y) represents the 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)
Is defined as the luminance average value of (1), wherein the neighborhood is->
Is a 3×3, 5×5, or 7×7 region centered on (x, y); l (L) s Representing the set standard brightness component value;
and converting the brightness component L' after continuous reading adjustment, the color component a and the color component b into RGB color space again to obtain a preprocessed construction site record picture.
Aiming at the situation that insufficient image definition is easily caused by uneven image brightness in the image recording process and the definition of recorded pictures on a construction site is not high, in the embodiment, a technical scheme for preprocessing the pictures on the construction site is provided, wherein the brightness component of the pictures on the construction site is firstly obtained, and the brightness distribution situation of the pictures is judged according to the brightness component information of the pictures on the construction site; according to different brightness distribution conditions, a corresponding brightness adjustment processing function is provided for adaptively adjusting the brightness of the image, so that the overall brightness condition of the picture on the construction site can be effectively enhanced, and the definition of the picture is improved.
In one embodiment, a completion 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 diagram, re-accounting the construction part subjected to construction adjustment in the actual construction process, calculating the actual engineering quantity according to the record of the actual construction condition, re-accounting the construction part according to the change information between the actual engineering quantity and the planned engineering quantity in combination with contract information, and integrating updated pricing information of the construction part into the engineering project BIM;
The project accounting unit is used for accounting the cost of the whole project based on the project BIM model to obtain the total cost information of the project.
In completion stage, comparing and analyzing according to actual construction condition of engineering project and bid-drawing construction diagram of engineering project BIM model reaction, accounting according to difference between actual construction condition and construction diagram, obtaining related pricing information, and integrating obtained pricing information into engineering project BIM model for updating. After the accounting of each construction part is completed, the cost accounting of the whole engineering project is further completed based on the engineering project BIM model, and the final cost accounting result is compared with the planned investment information and analyzed to obtain the related auditing result.
In a scene, through the perfection of a plurality of stage models and information, the BIM model in the completion stage can reflect the condition of engineering project entities, and the final cost of the project is determined according to the actual occurrence of the completed engineering, so that a reasonable and accurate completion resolution book is prepared. Meanwhile, the relevant data of the engineering project BIM model is archived, stored and managed, so that the requirements of subsequent checking and rechecking 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 allowing a user of the construction project cost consultant to log in the system and carrying out whole-process construction cost consultation service on the construction project through the corresponding module; and the construction party, the bidding party and the construction Fang Dengxiang are used for logging in the system by the user, accessing the engineering project BIM model corresponding to the engineering project and obtaining 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 log in 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 comprises an online communication module 8;
the online communication module 8 is used for real-time communication between the service provider user and other users (such as constructors, proctoring parties, design parties, reconnaissance parties, construction parties, etc.), so as to meet the multi-party communication requirement required in the whole process of construction cost consultation service.
In one embodiment, the system further comprises a database module 7;
the database module 7 is used for classifying, storing and managing related information corresponding to engineering projects, including unified storing and managing related information generated in the BIM model of the engineering projects and the whole process cost consultation service process.
According to the whole process cost consulting service system based on BIM shown in the above figure 1, the invention also provides a whole process cost consulting service method based on BIM, comprising the following steps:
constructing a preliminary three-dimensional model of the engineering project by adopting a BIM technology, and adding preliminary cost data according to the constructed preliminary three-dimensional model to acquire cost estimation information of the engineering project;
integrating the obtained design scheme and engineering design general calculation information into a preliminary three-dimensional model; determining a final design scheme based on the preliminary three-dimensional model, acquiring a construction drawing and a 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) of the engineering project;
acquiring engineering quantity information of an engineering project according to an engineering project BIM model, and formulating and releasing bid information by combining the engineering quantity information; the bid winning information agreed by the bidding unit is uniformly managed, and bid winning information of different construction parts of the engineering project is integrated into the engineering project BIM model;
In the construction process of the engineering project, auditing the engineering cost at each construction stage of the engineering project, adjusting the construction period and the fund plan according to the auditing result of the engineering cost, and integrating the adjusted construction period and the fund adjustment plan into a BIM 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 the engineering project BIM; and finishing the cost accounting of the engineering project according to the engineering project BIM model.
In the above embodiment, the construction cost consulting service provider provides the construction cost consulting technical service of the whole process to the decision stage, the design stage, the bidding stage, the construction stage and the completion stage of the whole process of the construction project through the investment decision management module, the design management module, the bidding management module, the construction management module and the completion acceptance management module, respectively. The method is beneficial to the construction cost consultation enterprises to provide complete whole-process construction cost consultation service for construction projects, timely tracks, manages and visually displays construction project cost information according to the built BIM model, is beneficial to providing high-efficiency data support for implementing whole-process construction cost control for the construction projects, reduces the difficulty of construction cost consultation service at each stage of construction projects, and improves the efficiency of construction cost consultation service. And moreover, the integrated management of the engineering cost data based on the BIM model improves the convenient level and the management level of the engineering cost data intercommunication of each stage of the construction engineering, and improves the capability of the construction project whole-process cost consultation service.
It should be noted that, in each embodiment of the present invention, each functional unit/module may be integrated in one processing unit/module, or each unit/module may exist alone physically, or two or more units/modules may be integrated in one unit/module. The integrated units/modules described above may be implemented either in hardware or in software functional units/modules.
From the above description of embodiments, it will be apparent to those skilled in the art that the embodiments described herein may be implemented in hardware, software, firmware, middleware, code, or any suitable combination thereof. For a hardware implementation, the 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 flow of an embodiment may be accomplished by a computer program to instruct the associated hardware. When implemented, the above-described programs may be stored in or transmitted 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. The computer readable media can include, but is not limited to, RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage media 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 for illustrating the technical solution of the present invention, and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (8)
1. A BIM-based whole process cost advisory service system, comprising: the system comprises an investment decision management module, a design management module, a bid and tender 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 engineering design general 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 a 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) of the engineering project;
The bid-bidding management module is used for acquiring engineering quantity information of the engineering project according to the engineering project BIM model, and formulating and releasing bid-bidding information in combination with the engineering quantity information; the bid winning information agreed by the bidding unit is uniformly managed, and bid winning information of different construction parts of the engineering project is integrated into the engineering project BIM model;
the construction management module is used for auditing the construction cost of the engineering project at 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 the fund adjustment plan into the engineering project BIM model;
the completion acceptance management module is used for comparing actual completion conditions of the engineering project with the bid-inviting construction drawing, re-pricing construction parts with larger differences, accounting actual engineering quantity in the engineering project construction process, obtaining cost adjustment information, and integrating the cost adjustment information into the engineering project BIM model; finishing cost accounting of the engineering project according to the engineering project BIM model;
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 construction progress and finished engineering quantity information of the engineering project, integrating the acquired construction progress and the finished engineering quantity information into an engineering project BIM model, 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;
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 a project BIM model;
the construction cost auditing unit is also used for acquiring image record data of the current construction progress and integrating the image record data, the construction progress and the finished engineering quantity information into the engineering project BIM model;
the manufacturing cost auditing unit comprises an image recording unit, wherein the image recording unit is used for acquiring image recording data and integrating the image recording data into a project BIM model;
the image recording unit comprises an image preprocessing unit, and the image preprocessing unit is used for preprocessing the acquired image recording data; integrating the preprocessed image record data into a project BIM model;
the preprocessing unit is used for preprocessing the acquired image record data, and specifically comprises the following steps:
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;
According to the brightness components of each pixel point, carrying out brightness component statistics, and carrying out statistics on the brightness components of each pixel point from large to smallSorting and obtaining brightness component value L of 20% of total number of pixel points 20％ And based on the obtained brightness component value L 20％ A processing threshold Y is set, where y=max (L 20％ -10，0.9L 20％ )；
Based on brightness component values L (x, Y) of all pixel points, marking the pixel points with brightness component values L (x, Y) not less than Y as bright pixel points, counting a bright pixel point set M according to the marked bright pixel points, marking the pixel points with brightness component values L (x, Y) 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 point set M M And counting the number N of pixels contained in the dark pixel point set H H When N 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:
wherein L' 1 (x, y) represents the luminance component value of the pixel (x, y) after the first luminance adjustment process, 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 (L) s Represents a set standard brightness component value, where L s ∈[65，70]A represents a set amplitude adjustment factor, where a ε [0.1,1 ]]Beta represents an anti-distortion adjustment factor, where beta ε [1,1.15 ]]；
When N is 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:
wherein L' 2 (x, y) representsThe brightness component value of the pixel point (x, y) after the second brightness adjustment processing, wherein L (x, y) represents the brightness component value of the pixel point (x, y), wherein (x, y) epsilon M represents that the pixel point belongs to a bright pixel point set, and (x, y) epsilon H represents that the pixel point belongs to a dark pixel point set; l (L) s Represents a set standard brightness component value, where L s ∈[65，70]Gamma represents the regulating amplitude regulating factor, wherein gamma is 10, 25]Delta represents an anti-distortion adjustment factor, where delta e [1.1,1.2]；
When N is M ≤1.5N H Or N H ≤1.5N M And then carrying out third brightness adjustment processing on the construction site picture, wherein the adopted third brightness adjustment function is as follows:
wherein L' 3 (x, y) represents the luminance component value of the pixel point (x, y) after the third luminance adjustment processing,
representing a neighborhood centered on a pixel (x, y)>
Is defined as the luminance average value of (1), wherein the neighborhood is->
Is a 3×3, 5×5, or 7×7 region centered on (x, y); l (L) s Representing the set standard brightness component value;
according to the brightness component L after brightness adjustment ′ And converting the color component a and the color component b into an RGB color space again to obtain a preprocessed construction site record picture.
2. The whole process cost consulting service system based on BIM according to claim 1, wherein the investment decision management module includes a model construction unit, an investment estimation unit and a technical economy 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, basic structure, engineering content and scale, building function and use, design scheme, project site cost information, site 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, carrying out preliminary construction cost estimation on the engineering project according to the rough engineering quantity estimation by combining the existing project reference data and the existing index type construction cost data, and obtaining preliminary construction cost data;
the technical and economic analysis unit is used for carrying out technical and economic analysis on the engineering project according to the basic information of the engineering project and combining the preliminary three-dimensional model and the preliminary cost data, and carrying out technical and economic evaluation on the project.
3. The BIM-based whole process cost consulting service system according to claim 1, wherein the design management module includes a design overview unit and a design diagram budget unit; wherein,,
the design general calculation unit is used for acquiring engineering project design schemes and corresponding design general calculation information provided by a design party, integrating the design schemes into a preliminary three-dimensional model for display, screening and confirming final design schemes;
the design drawing budget unit is used for acquiring a construction drawing according to a 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 construction drawing budget information into the preliminary three-dimensional model to obtain the engineering project BIM model.
4. The bid-based overall process cost consulting service system of claim 1, wherein the bid-tendering management module includes a bid-tendering planning unit, a bid-tendering unit, and a bid-tendering management unit; wherein,,
the bid-bidding planning unit is used for calculating engineering quantity information of the engineering project according to the engineering project BIM model, and issuing corresponding bid-bidding information for bid-bidding content and bid-bidding segments of the divided engineering project according to the engineering quantity information;
The bid-bidding unit is used for managing bid-bidding information of bidding units of each bid-bidding section according to different bid-bidding sections of the engineering project, confirming the bid-bidding information of each bid-bidding section to obtain bid-bidding information of different parts, and integrating the bid-bidding information into the engineering project BIM model; wherein the bid-winning information includes contract information, contract amount, and payment deadline of the corresponding construction section;
the bid-bidding management unit is used for uniformly managing bid-winning information of each bid-bidding section of the engineering project to obtain bid-winning prices of each part of the engineering project, and integrating the bid-winning price information into the engineering project BIM model.
5. The BIM-based total process cost advisory service system as claimed in claim 1, wherein the as built 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 diagram, re-accounting the construction part subjected to construction adjustment in the actual construction process, calculating the actual engineering quantity according to the record of the actual construction condition, re-accounting the construction part according to the change information between the actual engineering quantity and the planned engineering quantity in combination with contract information, and integrating updated pricing information of the construction part into the engineering project BIM;
The project accounting unit is used for accounting the cost of the whole project based on the project BIM model to obtain the total cost information of the project.
6. The BIM-based whole process cost advisory service system as claimed in claim 1, further comprising a login module;
the login module is used for allowing a user of the construction project cost consultant to log in the system and carrying out whole-process construction cost consultation service on the construction project through the corresponding module; and the relevant users of the constructor, the bidding party and the constructor log in the system, access the engineering project BIM model corresponding to the engineering project and acquire relevant information.
7. The BIM-based whole process manufacturing cost consultation service system according to claim 6, wherein the login module includes 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 log in 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.
8. The consultation service method of the BIM-based whole process cost consultation service system according to any one of claims 1 to 7, including:
Constructing a preliminary three-dimensional model of the engineering project by adopting a BIM technology, and adding preliminary cost data according to the constructed preliminary three-dimensional model to acquire cost estimation information of the engineering project;
integrating the obtained design scheme and engineering design general calculation information into a preliminary three-dimensional model; determining a final design scheme based on the preliminary three-dimensional model, acquiring a construction drawing and a 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) of the engineering project;
acquiring engineering quantity information of an engineering project according to an engineering project BIM model, and formulating and releasing bid information by combining the engineering quantity information; the bid winning information agreed by the bidding unit is uniformly managed, and bid winning information of different construction parts of the engineering project is integrated into the engineering project BIM model;
in the construction process of the engineering project, auditing the engineering cost at each construction stage of the engineering project, adjusting the construction period and the fund plan according to the auditing result of the engineering cost, and integrating the adjusted construction period and the fund adjustment plan into a BIM 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 the engineering project BIM; and finishing the cost accounting of the engineering project according to the engineering project BIM model.
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