CN116664176A - Building engineering cost supervision system based on block chain - Google Patents
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Abstract
The invention discloses a block chain-based construction engineering cost supervision system, which particularly relates to the technical field of engineering cost supervision, and comprises a user login use module, a factory building construction data acquisition module, a construction cost budget module, a site investigation calculation module, an actual cost judgment module and a cost correction module.
Description
Technical Field
The invention relates to the technical field of construction cost supervision, in particular to a construction engineering construction cost supervision system based on block chains.
Background
The existing construction project cost supervision system based on the blockchain calculates the expected cost of construction projects, uploads the data information in construction into the system, adopts the blockchain technology in the system data transmission, encrypts construction data by utilizing a hash function, ensures the safety and reliability of the construction project cost process data, ensures the reliability and authenticity of the construction project account by counting construction resources and unit price and storing stubs, is beneficial to the transparency of the construction project cost, and improves the accuracy and efficiency of the construction project cost.
However, the technology still has the defects that in the using process, the system only carries out approximate expected calculation aiming at the engineering cost, does not carry out analysis according to the actual situation, does not change the expected engineering cost according to the actual situation, does not carry out final cost correction on the expected engineering cost according to the comparison of the ideal state and the actual state, leads the expected engineering cost and the actual engineering cost to have larger result errors, and reduces the accuracy of engineering cost data and the engineering cost efficiency.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a construction engineering cost supervision system based on a blockchain, which encrypts transmitted data through a blockchain technology, calculates and compares expected construction cost after field investigation, trains a correction model according to the conventional construction data and corrects the data of the actual construction cost so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
preferably, the user login module is used for a user to log in the system through identity verification and upload material bills required by engineering cost in the factory building construction process and update and upload the construction field conditions in real time, and the user login module comprises:
user login unit: users of each department log in the system through the personal basic information of the users, and after entering the system, the users can update and upload engineering cost materials and construction field conditions in the factory building construction process in real time;
a blockchain data transmission unit: and encrypting the data uploaded by the user by using a block chain technology and transmitting the data to a database of the system.
Preferably, the factory building construction data acquisition module acquires various data fields of factory building engineering cost and integrates and numbers acquired data, and the factory building construction data acquisition module comprises:
a data acquisition unit: collecting data information through data reported by subordinate departments;
and (3) an in-field sampling unit: setting n field sampling points, and carrying out sampling numbering on the constructed field data;
data integration numbering unit: the collected data are subjected to arrangement numbering, which comprises the following steps: the quantity A of the resources required for construction, the average unit price B of the resources required for construction, and the real-time temperature x of the construction site 1 、x 2 、……、x n The initial height of the soil sample of the construction site is H 01 、H 02 、……、H 0n Soil sample height H after being pressed 1 、H 2 、……、H n Specific gravity G of soil particles in construction site 1 、G 2 、……G n Initial water content W of construction site soil 01 、W 02 、……、W 0n 。
Preferably, the construction cost budget module is configured to calculate costs required for building each department of the factory building, and obtain an expected value of the construction cost, and the construction cost budget module includes:
expected cost calculation unit: calculating the expected construction cost Y n = (a x B x ζ) ± η, wherein ζ is an influence factor, η is a fluctuation value of the expected cost.
Preferably, the site investigation calculation module is used for acquiring data acquired after site investigation is constructed, the system carries out actual cost calculation of construction engineering according to the acquired data, and the site investigation calculation module:
required resource data acquisition unit: acquiring the required real-time temperature of the construction site, the initial height of the soil sample of the construction site as well as the height of the soil sample after being pressed, the specific gravity of the soil particles of the construction site and the initial water content data of the soil of the construction site
The actual construction cost calculation unit:wherein A is 1 ＝k 1 (-a 1 x 2 +bx+c) is a functional relationship between ambient temperature x and resource usage, beta 1 For the pore ratio of the stabilized soil in the construction site, the formula is satisfied: />β 0 The initial pore ratio of the soil meets the following formula:is the relation between the environmental soil humidity m and the resource consumption.
Preferably, the actual cost judging module is configured to judge whether the actual cost of construction calculated from the actual investigation is within a fluctuation range of the expected cost, and the actual cost judging module includes:
cost difference calculation unit: calculating the difference delta Y between the expected construction cost and the actual construction cost after investigation: ΔY= |Y-Y n |；
And a comparison judging unit: judging the magnitude relation between delta Y and eta, namely judging whether the difference between the actual building cost and the expected building cost is within a reasonable range, and if eta is less than or equal to delta Y and eta is less than or equal to eta, judging that the difference between the actual building cost and the expected building cost is within the reasonable range, otherwise, the difference between the actual building cost and the expected building cost is too large, and the actual building cost of the project is unreasonable.
Preferably, the cost correction module corrects the cost in a case that the actual cost is not within the expected range of cost, and the cost correction module includes:
correction model establishment unit: according to the past construction engineering data, a data correction training set of the system is established;
data screening reference unit: screening out data which are the same as or similar to the construction type in the database for reference, wherein a construction type similarity calculation formula is as follows: d (D) n ＝{E、F、G、H}，d＝{e、f、g、h}，Wherein D is n In the prior art, in various construction projects, a group of sets consisting of various data classes of one construction project, d is a group of sets consisting of different data of the same data class in the one construction project, and the similarity S n Above s%, i.e. the construction project is very similar to the one at this time, the data result of which can provide a data reference for the one at this time;
the mean value calculation unit: acquiring a project unit mean value of each project and total cost data of each project according to the same or similar historical data;
result correction means: correcting the data result of which the actual cost is not in the range, if the actual cost is not in the expected cost range, acquiring the total cost data of the current project, and obtaining corrected data, namely the engineering cost data of the current project, according to the average value of the total cost data of each similar construction project in the past;
and a correction result feedback unit: and the method is used for feeding the corrected actual cost data back to the developer, and reminding the developer to timely change the actual cost data.
The invention has the technical effects and advantages that:
according to the invention, the past construction data and the data of the project construction site are collected, the calculation and comparison of the project construction expected cost and the actual cost are carried out, whether the actual cost is in a reasonable range is judged according to the calculation result, and the correction of the project construction actual cost abnormal data is carried out by establishing the data correction training set, so that the data error is reduced, the accuracy of the project cost data and the project cost efficiency are improved, the project cost is reduced, unnecessary fund waste is avoided, and the actual construction cost is controlled in a reasonable range.
Drawings
Fig. 1 is a block diagram of a system architecture of the present invention.
Fig. 2 is a flow chart of the system of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment provides a blockchain-based construction engineering cost supervision system as shown in fig. 1, which comprises a user login use module, a factory building construction data acquisition module, a construction cost budget module, a site investigation calculation module, an actual cost judgment module and a cost correction module.
The user login module is used for users to log in the system, upload and inquire construction data and update the construction field condition in real time according to the personal information; the factory building construction data acquisition module is used for acquiring the consumption, cost and various environmental information of a construction site of resources required by factory building construction engineering; the construction cost budget module is used for calculating the cost budget of the construction project and determining the floating range of the cost; the field investigation and calculation module is used for analyzing and calculating the construction actual cost according to the field investigation data of the construction site; the actual cost judging module is used for judging whether the actual cost is within a reasonable range, namely whether the actual cost is within a floating range of the expected cost, and judging the actual cost which is not within the reasonable range as abnormal data; the cost correction module is used for building a data correction training model according to the conventional construction data, correcting the actual cost data by using the correction model, and feeding back the corrected result to a construction party.
The difference between the implementation and the prior art lies in that the construction cost budget module, the actual cost judging module and the cost correcting module are used for calculating the expected cost floating range of the construction, the range is not an exact value, the actual cost is allowed to float within the range, the actual cost judging module is used for increasing the actual cost calculation, the actual cost of construction is calculated through analysis of various construction sites and environments, the actual cost of construction is increased for judging, the cost correcting module is used for correcting the abnormal data of the actual cost through data correction training model based on the added data, and the accuracy and rationality of the engineering cost data are ensured.
As shown in fig. 2, the present embodiment provides a system flowchart of a constructional engineering cost supervision system based on blockchain, which specifically includes the following steps:
101. the user login module is used for verifying the login system by using the user identity and uploading material bills required by engineering cost in the factory building construction process and updating and uploading the construction field condition in real time, and the user login module comprises the following specific steps of:
a1, users of each department log in the system through personal basic information of the users, and after entering the system, the users can update and upload engineering cost materials and construction field conditions in the factory building construction process in real time;
a2, transmitting information input by a user to a system database by a system, and encrypting the data by the system by using a block chain technology in the data transmission process;
what needs to be explained here is: the purpose of data encryption is to prevent data from being tampered maliciously in the transmission process or from being leaked, users cannot modify the data mutually in the login and data input processes, reliability and authenticity of the data are guaranteed, the built data are key factors for determining engineering cost, safety of the built data is guaranteed, and reasonability of the engineering cost is guaranteed.
102. The factory building construction data acquisition module is used for acquiring various data fields of factory building construction cost and carrying out integration numbering on acquired data, and the concrete steps of the factory building construction data acquisition module for carrying out data acquisition are as follows:
b1, extracting and integrating project construction data submitted by a user in a database;
b2, numbering the integrated data: the method comprises the following steps: the quantity A of the resources required for construction, the average unit price B of the resources required for construction, and the real-time temperature x of the construction site 1 、x 2 、……、x n The initial height of the soil sample of the construction site is H 01 、H 02 、……、H 0n Soil sample height H after being pressed 1 、H 2 、……、H n Specific gravity G of soil particles in construction site 1 、G 2 、……G n Initial water content W of construction site soil 01 、W 02 、……、W 0n 。
103. Calculating the cost required by each department of factory building through a building cost budget module to obtain an expected value of the building cost, wherein the concrete steps of calculating the expected building cost through the building cost budget module are as follows:
c1, extracting basic data of a construction project, and processing the data;
c2, calculating the expected construction cost Y n = (a x B x ζ) ± η, wherein ζ is an influencing factor, η is a fluctuation value of the expected cost;
what needs to be explained here is: the expected construction cost is affected by various factors, so that the expected construction cost is in a reasonable range and fluctuates within the range, and calculation of the expected construction cost facilitates comparison with the actual construction cost at a later stage, and the project construction cost can be known and controlled more normally through comparison.
104. The field investigation and calculation module is used for acquiring data acquired after the field investigation and construction of the field, and the system is used for carrying out actual cost calculation of construction engineering according to the acquired data, wherein the field investigation and calculation module is used for carrying out the actual cost calculation of construction, and the specific steps are as follows:
d1, acquiring the required real-time temperature of the construction site, the initial height of a soil sample of the construction site, the height of the soil sample after being pressed, the specific gravity of soil particles of the construction site and the initial water content data of the soil of the construction site;
d2, calculating the actual construction cost:wherein A is 1 ＝k 1 (-a 1 x 2 +bx+c) is a functional relationship between ambient temperature x and resource usage, beta 1 For the pore ratio of the stabilized soil in the construction site, the formula is satisfied: />β 0 The initial pore ratio of the soil meets the following formula: />A 2 ＝k 3 m+b is the relation between the environmental soil humidity m and the resource consumption;
what needs to be explained here is: h 0 To average the initial heights of soil samples at a plurality of sampling points of construction sites, H 1 For the average value ρ of the heights of the soil samples at a plurality of sampling points in the construction site after being pressed w Soil initial density, ρ, for a plurality of sampling points 0 For the density of water of a plurality of sampling points, the measurement of various environmental data of a construction site is beneficial to the calculation and evaluation of actual cost, the environmental factors are key factors influencing the actual cost of construction, the measurement of the environmental data is beneficial to the more accurate data calculation of the actual cost, and a data basis is provided for the next data comparison and correction.
105. Judging whether the actual cost of construction calculated according to actual investigation is within the fluctuation range of the expected cost or not through an actual cost judging module, wherein the actual cost judging module performs the specific steps of data calculation and judgment:
e1, calculating a difference delta Y between the expected construction cost and the actual construction cost after investigation: ΔY= |Y-Y n |；
E2, judging the size relation between delta Y and eta, namely judging whether the difference between the actual building cost and the expected building cost is within a reasonable range, if eta is less than or equal to delta Y and eta is less than or equal to eta, the difference between the actual building cost and the expected building cost is within a reasonable range, otherwise, the difference between the actual building cost and the expected building cost is too large, and the actual building cost of the project is unreasonable;
what needs to be explained here is: the difference value between the actual cost and the expected cost is calculated to judge whether the cost under the actual operation is reasonable or not, if the data comparison is not carried out, the excessive difference can influence the prediction of the whole project and the immeasurable loss caused by the final construction effect, so that the comparison of the actual cost and the expected cost is beneficial to the correction of the actual cost in the later stage and the improvement of the accuracy of the construction cost.
106. And carrying out cost correction on the condition that the actual cost is not within the expected range cost through a cost correction module, wherein the cost correction module comprises the following specific steps of:
f1, establishing a correction model: according to the past construction engineering data, a data correction training set of the system is established;
and F2, screening out data which are the same as or similar to the construction type in the database for reference, wherein a construction type similarity calculation formula is as follows: d (D) n ＝{E、F、G、H}，d＝{e、f、g、h}，Wherein D is n In the prior art, in various construction projects, a group of sets consisting of various data classes of one construction project, d is a group of sets consisting of different data of the same data class in the one construction project, and the similarity S n Above s%, i.e. the construction project is very similar to the one at this time, the data result of which can provide a data reference for the one at this time;
f3, acquiring an item unit mean value of each item and total cost data of each item according to the same or similar historical data;
f4, correcting the data result of which the actual cost is not in the range, if the actual cost is not in the expected cost range, acquiring the total cost data of the current project, and obtaining corrected data, namely the project cost data of the current project, according to the average value of the total cost data of each similar construction project in the past;
f5, feeding the corrected actual cost data back to the developer, and reminding the developer to timely change the actual cost data;
what needs to be explained here is: the purpose of correcting the actual cost is to reduce unnecessary cost loss, improve the utilization rate of resources, ensure that the actual cost is controlled within a reasonable range, establish a training model for data correction by using the traditional data, better correct the data, ensure the accuracy of the data, and influence the progress and the cost of the whole construction engineering if the expected cost and the final actual cost have a larger difference, so that the engineering cost can be reduced and the construction efficiency can be improved by modifying and controlling the actual cost.
Finally: the foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (7)
1. The utility model provides a building engineering cost supervisory systems based on block chain which characterized in that: comprising the following steps:
the user logs in the using module: the system is used for a user to log in the system through identity verification and upload material bills required by engineering cost in the factory building construction process and update and upload the construction field conditions in real time;
factory building construction data acquisition module: collecting various data of factory engineering cost, wherein the method comprises the following steps: the method comprises the steps of building the quantity of resources required by construction, building the average unit price of the resources required by construction, and setting the real-time temperature of a construction site, the initial height of a soil sample of the construction site as well as the height of the soil sample after being pressed, the specific gravity of soil particles of the construction site and the initial water content of soil of the construction site;
and (3) a construction cost budget module: the method is used for calculating the cost required by building the factory building to obtain an expected value of the building cost;
the field investigation calculation module: the system is used for acquiring data acquired after the construction site is inspected in the field, and carrying out actual cost calculation of construction engineering according to the acquired data;
the actual cost judging module is as follows: for judging whether the actual cost of construction calculated from the actual survey is within the fluctuation range of the expected cost;
and a cost correction module: the method comprises the steps of establishing a system data correction training set according to historical data, and carrying out cost correction on the condition that the actual cost is not within the expected range cost;
the actual cost judging module judges the concrete basis of construction actual cost as follows:
calculating the difference between the expected construction cost and the actual construction cost after investigation;
judging whether the actual construction cost is within the range of the expected construction cost, if the actual construction cost is within the range of the expected construction cost, the actual construction cost is final engineering cost data, and if the actual construction cost exceeds the range of the expected construction cost, judging that the data is unreasonable, and correcting the actual cost;
the specific basis for the cost correction module to correct the abnormal data is as follows:
according to the previous construction basis, calculating and screening out the past construction data similar to the current construction type, calculating and analogy to obtain a correction result of the actual construction cost according to the similar past construction data, and feeding back the correction result.
2. A blockchain-based construction cost supervision system as in claim 1, wherein: the user login module is used for a user to log in the system through identity verification and uploading material bills required by engineering cost in the factory building construction process and updating and uploading the construction field conditions in real time, and comprises:
user login unit: users of each department log in the system through the personal basic information of the users, and after entering the system, the users can update and upload engineering cost materials and construction field conditions in the factory building construction process in real time;
a blockchain data transmission unit: and encrypting the data uploaded by the user by using a block chain technology and transmitting the data to a database of the system.
3. A blockchain-based construction cost supervision system as in claim 1, wherein: the factory building construction data acquisition module carries out various data ground acquisition of factory building engineering cost to carry out integration serial number with the data that gathers, factory building construction data acquisition module includes:
a data acquisition unit: collecting data information through data reported by subordinate departments;
and (3) an in-field sampling unit: setting n field sampling points, and carrying out sampling numbering on the constructed field data;
data integration numbering unit: the collected data are subjected to arrangement numbering, which comprises the following steps: the quantity A of the resources required for construction, the average unit price B of the resources required for construction, and the real-time temperature x of the construction site 1 、x 2 、……、x n The initial height of the soil sample of the construction site is H 01 、H 02 、……、H 0n Soil sample height H after being pressed 1 、H 2 、……、H n Specific gravity G of soil particles in construction site 1 、G 2 、……G n Initial water content W of construction site soil 01 、W 02 、……、W 0n 。
4. A blockchain-based construction cost supervision system as in claim 1, wherein: the construction cost budget module is used for calculating the cost required by each department of factory building to obtain the expected value of the construction cost, and the construction cost budget module comprises:
expected cost meterThe calculating unit: calculating the expected construction cost Y n = (a x B x ζ) ± η, wherein ζ is an influence factor, η is a fluctuation value of the expected cost.
5. A blockchain-based construction cost supervision system as in claim 1, wherein: the field investigation calculation module is used for acquiring data acquired after the field investigation is constructed, the system carries out actual cost calculation of construction engineering according to the acquired data, and the field investigation calculation module:
required resource data acquisition unit: acquiring the required real-time temperature of the construction site, the initial height of the soil sample of the construction site as well as the height of the soil sample after being pressed, the specific gravity of the soil particles of the construction site and the initial water content data of the soil of the construction site
The actual construction cost calculation unit:wherein A is 1 ＝k 1 (-a 1 x 2 +bx+c) is a functional relationship between ambient temperature x and resource usage, beta 1 For the pore ratio of the stabilized soil in the construction site, the formula is satisfied: />β 0 The initial pore ratio of the soil meets the following formula: />A 2 ＝k 3 And m+b is the relation between the ambient soil humidity m and the resource consumption.
6. A blockchain-based construction cost supervision system as in claim 1, wherein: the actual cost judging module is used for judging whether the actual cost of construction calculated according to actual investigation is within the fluctuation range of the expected cost, and comprises:
cost difference calculation unit: calculating the expected constructionThe difference delta Y between the actual construction cost after the investigation: ΔY= |Y-Y n |；
And a comparison judging unit: judging the magnitude relation between delta Y and eta, namely judging whether the difference between the actual building cost and the expected building cost is within a reasonable range, and if eta is less than or equal to delta Y and eta is less than or equal to eta, judging that the difference between the actual building cost and the expected building cost is within the reasonable range, otherwise, the difference between the actual building cost and the expected building cost is too large, and the actual building cost of the project is unreasonable.
7. A blockchain-based construction cost supervision system as in claim 1, wherein: the cost correction module is used for correcting the cost when the actual cost is not within the expected range cost, and comprises:
correction model establishment unit: according to the past construction engineering data, a data correction training set of the system is established;
data screening reference unit: screening out data which are the same as or similar to the construction type in the database for reference, wherein a construction type similarity calculation formula is as follows: d (D) n ＝{E、F、G、H}，d＝{e、f、g、h}，Wherein D is n In the prior art, in various construction projects, a group of sets consisting of various data classes of one construction project, d is a group of sets consisting of different data of the same data class in the one construction project, and the similarity S n Above s%, i.e. the construction project is very similar to the one at this time, the data result of which can provide a data reference for the one at this time;
the mean value calculation unit: acquiring a project unit mean value of each project and total cost data of each project according to the same or similar historical data;
result correction means: correcting the data result of which the actual cost is not in the expected cost range, if the actual cost is not in the expected cost range, acquiring the total cost data of the current project, and obtaining corrected data, namely the engineering cost data of the current project, according to the average value of the total cost data of each similar construction project in the past;
and a correction result feedback unit: and the method is used for feeding the corrected actual cost data back to the developer, and reminding the developer to timely change the actual cost data.
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| CN117114922B (en) * | 2023-10-24 | 2024-01-26 | 天津广正建设项目咨询股份有限公司 | Consultation service and evaluation method and system based on whole process engineering consultation |
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