Intelligent construction site management system, method and equipment based on BIM (Building Information Modeling) technology

Abstract

The invention discloses an intelligent construction site management system, method and equipment based on a BIM technology, and relates to the technical field of construction site management. The intelligent construction site management system based on the BIM technology comprises a material acceptance module, a progress simulation module and an inventory management and control module. According to the invention, material acceptance deviation analysis is carried out through the obtained data of the to-be-entered material to obtain the deviation analysis index, then whether progress simulation is executed is judged based on the obtained deviation analysis index, if yes, material entry is simulated, the progress coincidence score is obtained, and finally whether inventory management is executed is judged according to the obtained progress coincidence score. If yes, real-time inventory data is obtained and analyzed to obtain an inventory state evaluation value, so that the timeliness of in-and-out material progress tracking management and control in the intelligent construction site management process is improved, and the problem that in the prior art, the timeliness of in-and-out material progress tracking management and control in the intelligent construction site management process is not high is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of construction site management, and particularly to a smart construction site management system, method and device based on BIM technology. Background Technique

[0002] With the continuous progress of new-generation information technologies such as big data, cloud computing, the Internet of Things, and mobile Internet, the construction industry, as an important pillar industry of the national economy, is also actively promoting digital transformation. BIM (Building Information Modeling) technology is a digital tool applied to engineering design, construction, and management. It integrates digital and information models of buildings and conducts sharing and transmission throughout the entire life cycle of project planning, operation, and maintenance, aiming to improve production efficiency, save costs, and shorten the construction period. A smart construction site refers to the use of information technology means to accurately design and simulate construction of engineering projects through a three-dimensional design platform, and achieve all-round and whole-process management of the construction site around the construction process management.

[0003] In the existing technology, a BIM model is constructed using BIM modeling software on CAD (Computer-Aided Design) construction drawings, and the constructed BIM model is combined with the smart construction site system. Then, the progress of construction simulation is visualized through the BIM model, and finally, the construction progress data of real-time feedback and management is obtained to adjust the construction progress plan.

[0004] For example, a smart construction site management system for municipal engineering based on BIM technology disclosed in the invention patent announcement with the publication number of CN117575294B includes: establishing a BIM model according to relevant data of municipal engineering and determining different engineering blocks based on the model; scheduling and managing construction workers, construction raw materials, and construction equipment according to the engineering quantity of each engineering block, and real-time monitoring the working conditions of construction workers, the inbound and outbound conditions of construction raw materials, and the operation conditions of construction equipment; judging whether the actual daily construction progress reaches the specified construction progress, and if not, sending a delay warning and providing a solution; real-time monitoring various indicators in the construction environment, and issuing an alarm and taking corresponding measures when the indicators exceed the corresponding thresholds; using the BIM model and real-time environment data to simulate the energy use and emissions of the building and judging whether optimization is required; and conducting safety management of the smart construction site of municipal engineering from two aspects of personnel safety and building safety.

[0005] For example, the method, system, medium and device for realizing intelligent construction site management by using BIM disclosed in the invention patent announcement with the announcement number of CN114897393B include: obtaining user information and performing verification and interface display; after the interface display is completed, organizing the BIM data that needs to be responded according to the user input as page logic; selecting the data type in the interface and combining with the page logic to update the data storage and determine the current business scenario; reading the coordinate position information of each component and marking the anti-counterfeiting identification code of the component; verifying the anti-counterfeiting identification code of the component and performing dynamic evolution analysis under the current business scenario; obtaining the risk identification of component anomalies, and when there are risks in the component, retrieving the inspection list and carrying out rectification.

[0006] However, in the process of implementing the technical solution of the invention in the embodiments of the present application, it is found that the above technology has at least the following technical problems: In the prior art, during the actual construction process, the construction progress and site conditions may change at any time. Although the constructed BIM model can be updated and reflect these changes in real time, there is a delay in the data conversion between CAD drawings and the existing intelligent construction site system, resulting in a reduction in the real-time performance of importing into the BIM modeling software, and further causing a deviation in the construction progress between the construction simulation result and the actual construction situation. There is a problem of low timeliness in tracking and controlling the progress of in-and-out materials during the intelligent construction site management process. Summary of the Invention

[0007] The embodiments of the present application provide an intelligent construction site management system, method and device based on BIM technology, which solve the problem of low timeliness in tracking and controlling the progress of in-and-out materials during the intelligent construction site management process in the prior art, and realize the improvement of the timeliness in tracking and controlling the progress of in-and-out materials during the intelligent construction site management process.

[0008] The embodiment of the present application provides a smart construction site management system based on BIM technology, including: a material acceptance module, a progress simulation module, and an inventory control module; wherein, the material acceptance module is used to monitor the transportation status of the materials to be transported into the site in real time to obtain the data of the materials to be transported into the site, and at the same time, perform a material acceptance deviation analysis based on the obtained data of the materials to be transported into the site to obtain a deviation analysis index, and the deviation analysis index is used to quantify the deviation degree between the data of the materials to be transported into the site and the target data of the materials to be transported into the site; the progress simulation module is used to judge whether to perform progress simulation according to the obtained deviation analysis index. If so, it simulates the entry of materials and monitors the progress changes during the material entry process in real time and compares them with the actual progress to obtain a progress compliance score, and the progress compliance score is used to quantify the compliance degree between the simulated progress and the actual progress of the materials to be transported into the site; the inventory control module is used to judge whether to perform inventory management according to the obtained progress compliance score. If so, it obtains real-time inventory data and analyzes it to obtain an inventory status evaluation value, and the inventory status evaluation value is used to evaluate the inventory management efficiency of the materials to be inventoried corresponding to the specified transport vehicle and the specified warehouse at the construction site.

[0009] Further, the deviation analysis index is obtained by the following method: Obtain the actual loading duration and actual transportation duration of the materials to be transported into the site within a preset entry period, and at the same time, combine the target loading duration and target transportation duration to obtain a loading duration score and a transportation duration score. The loading duration score represents the ratio of the absolute value of the difference between the actual loading duration and the target loading duration to the target loading duration, and the transportation duration score represents the ratio of the absolute value of the difference between the actual transportation duration and the target transportation duration to the target transportation duration; Obtain the deviation analysis coefficient of the materials to be transported into the site within a preset entry period: When the material to be transported into the site is the first material to be transported into the site, obtain the actual quantity of the materials transported into the site within the preset entry period and combine it with the target quantity of the materials to be transported into the site to obtain a material quantity score, and at the same time, combine the deviation analysis parameters and the material quantity deviation weight factor in the database to obtain a deviation analysis index. The material quantity score represents the ratio of the absolute value of the difference between the actual quantity of the materials transported into the site and the target quantity of the materials to be transported into the site to the reference material quantity deviation; When the material to be transported into the site is the second material to be transported into the site, obtain the actual weight of the materials transported into the site within the preset entry period and combine it with the target weight of the materials to be transported into the site to obtain a material weight score, and at the same time, combine the deviation analysis parameters and the material weight deviation weight factor in the database to obtain a deviation analysis index. The material weight score represents the ratio of the absolute value of the difference between the actual weight of the materials transported into the site and the target weight of the materials to be transported into the site to the reference material weight deviation; The deviation analysis parameters include the obtained loading duration score, transportation duration score, and the loading duration deviation weight factor and transportation duration deviation weight factor in the database.

[0010] Further, the specific steps for obtaining the progress compliance score are as follows: When the obtained deviation analysis index is less than the preset deviation analysis index in the database, obtain the first material sorting duration score and the second material transfer duration score at the end of the progress simulation period. The first material sorting duration score represents the ratio of the first material sorting duration to the total duration of the progress simulation period, and the second material transfer duration score represents the ratio of the second material transfer duration to the total duration of the progress simulation period; obtain the first material arrival time deviation and the second material arrival time deviation at the end of the progress simulation period, and at the same time, combine the obtained deviation analysis index, the maximum allowable material arrival time deviation in the database, and the progress compliance weight factor to obtain the progress compliance score. The first material arrival time deviation represents the time difference between the time when the first incoming material arrives at the designated location and the target arrival time, and the second material arrival time deviation represents the time difference between the time when the second incoming material arrives at the designated location and the target arrival time. The progress compliance weight factor includes a material delay duration weight factor, a material arrival time deviation weight factor, and a deviation analysis index weight factor.

[0011] Further, the inventory status evaluation value is obtained through the following method: When the obtained progress compliance score is greater than the preset progress compliance score in the database and the current inventory management time is not equal to 1: Obtain the vehicle inventory turnover rate, which is the sum of the first vehicle inventory turnover rate and the second vehicle inventory turnover rate. The first vehicle inventory turnover rate represents the ratio of the absolute value of the difference between the first quantity of materials to be inventoried of the designated transport vehicle at the current inventory management time and the first quantity of materials to be inventoried at the previous inventory management time to the initial first quantity of materials to be inventoried. The second vehicle inventory turnover rate represents the ratio of the absolute value of the difference between the second weight of materials to be inventoried of the designated transport vehicle at the current inventory management time and the second weight of materials to be inventoried at the previous inventory management time to the initial second weight of materials to be inventoried; obtain the warehouse inventory turnover rate, which is the sum of the first warehouse inventory turnover rate and the second warehouse inventory turnover rate. The first warehouse inventory turnover rate represents the ratio of the absolute value of the difference between the first quantity of materials to be inventoried of the designated warehouse at the current inventory management time and the first quantity of materials to be inventoried at the previous inventory management time to the initial first quantity of materials to be inventoried. The second warehouse inventory turnover rate represents the ratio of the absolute value of the difference between the second weight of materials to be inventoried of the designated warehouse at the current inventory management time and the second weight of materials to be inventoried at the previous inventory management time to the initial second weight of materials to be inventoried; obtain the inventory status factor and combine the obtained progress compliance score to obtain the inventory status evaluation value. The inventory status factor includes a first inventory status factor and a second inventory status factor. The first inventory status factor is used to visualize the inventory status of the designated transport vehicle, and the second inventory status factor is used to visualize the inventory status of the designated warehouse.

[0012] The embodiments of the present application provide a method applied to the intelligent construction site management system based on BIM technology, including the following steps: S1, real-time monitoring the transportation status of materials to be delivered to the site to obtain data of materials to be delivered to the site, and at the same time, conducting material acceptance deviation analysis based on the obtained data of materials to be delivered to the site to obtain a deviation analysis index, where the deviation analysis index is used to quantify the deviation degree between the data of materials to be delivered to the site and the target data of materials to be delivered to the site; S2, judging whether to perform progress simulation according to the obtained deviation analysis index. If so, simulating the entry of materials and real-time monitoring the progress changes during the material entry process and comparing them with the actual progress to obtain a progress compliance score, where the progress compliance score is used to quantify the compliance degree between the simulated progress and the actual progress of the materials to be delivered to the site; S3, judging whether to perform inventory management according to the obtained progress compliance score. If so, obtaining real-time inventory data and analyzing it to obtain an inventory status evaluation value, where the inventory status evaluation value is used to evaluate the inventory management efficiency of the materials to be stocked corresponding to the designated transport vehicle and the designated warehouse at the construction site.

[0013] The embodiments of the present application provide equipment applied to the intelligent construction site management system based on BIM technology, including: a data collector inventory checker, a timer, a digital level sensor, and a load sensor; the data collector inventory checker is used to obtain the first real-time inventory quantity and the second real-time inventory quantity; the timer is used to obtain construction management duration data; the construction management duration data includes the actual loading duration, the actual transportation duration, the first material sorting duration, the second material transfer duration, the time when the first batch of materials to be delivered to the site arrives at the designated location, and the time when the second batch of materials to be delivered to the site arrives at the designated location; the digital level sensor is used to obtain the actual quantity of materials entering the site and the first quantity of materials to be stocked; the load sensor is used to obtain the actual weight of materials entering the site and the second weight of materials to be stocked.

[0014] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages: 1. By conducting material acceptance deviation analysis based on the obtained data of materials to be delivered to the site to obtain a deviation analysis index, then judging whether to perform progress simulation based on the obtained deviation analysis index. If so, simulating the entry of materials and obtaining a progress compliance score, and finally judging whether to perform inventory management according to the obtained progress compliance score. If so, obtaining real-time inventory data and analyzing it to obtain an inventory status evaluation value, thus realizing a more accurate assessment of the material in-and-out status, and further realizing an improvement in the timeliness of the progress tracking and control of in-and-out materials during the intelligent construction site management process, effectively solving the problem of low timeliness of the progress tracking and control of in-and-out materials during the intelligent construction site management process in the prior art.

[0015] 2. By obtaining the first material sorting duration score and the second material transfer duration score at the end of the progress simulation period, then obtaining the first material arrival time deviation and the second material arrival time deviation at the end of the progress simulation period, and finally combining the obtained deviation analysis index, the maximum allowable material arrival time deviation in the database, and the progress compliance weight factor to obtain the progress compliance score, the accuracy of obtaining the progress compliance score is improved, and thus a more accurate evaluation of the progress simulation of the materials to be entered the site is realized.

[0016] 3. By obtaining the vehicle inventory turnover rate through the first vehicle inventory turnover rate and the second vehicle inventory turnover rate, and at the same time obtaining the warehouse inventory turnover rate through the first warehouse inventory turnover rate and the second warehouse inventory turnover rate, obtaining the inventory status factor and combining the obtained progress compliance score to obtain the inventory status evaluation value, the accuracy of obtaining the inventory status evaluation value is improved, and thus a more accurate evaluation of the inventory management efficiency of the materials to be inventoried is realized. Brief Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of a smart construction site management system based on BIM technology provided by an embodiment of the present application; Figure 2 It is a flowchart of a smart construction site management method based on BIM technology provided by an embodiment of the present application; Figure 3 It is a flowchart of the construction site material management provided by an embodiment of the present application. Detailed Embodiment

[0018] In the embodiment of the present application, by providing a smart construction site management system, method and device based on BIM technology, the problem of low timeliness of the progress tracking and control of the materials entering and leaving the site in the existing smart construction site management process is solved. The material acceptance module monitors the transportation status of the materials to be entered the site in real time to obtain the data of the materials to be entered the site, and at the same time performs material acceptance deviation analysis according to the obtained data of the materials to be entered the site to obtain the deviation analysis index. Then, the progress simulation module determines whether to perform progress simulation according to the obtained deviation analysis index. If so, it simulates the entry of the materials and monitors the progress change during the material entry process in real time and compares it with the actual progress to obtain the progress compliance score. Finally, the inventory control module determines whether to perform inventory management according to the obtained progress compliance score. If so, it obtains the real-time inventory data and performs analysis to obtain the inventory status evaluation value, realizing the improvement of the timeliness of the progress tracking and control of the materials entering and leaving the site in the smart construction site management process.

[0019] The technical solution in the embodiment of the present application is to solve the problem of low timeliness of the progress tracking and control of the materials entering and leaving the site in the above-mentioned smart construction site management process. The general idea is as follows: Material acceptance deviation analysis is performed on the obtained data of materials to be delivered to the site to obtain a deviation analysis index. Then, based on the obtained deviation analysis index, it is judged whether to perform progress simulation. If so, the material delivery to the site is simulated and a progress compliance score is obtained. Finally, based on the obtained progress compliance score, it is judged whether to perform inventory management. If so, real-time inventory data is obtained and analyzed to obtain an inventory status evaluation value, achieving the effect of improving the timeliness of progress tracking and control of materials entering and leaving the site in the intelligent construction site management process.

[0020] To better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings of the specification and specific embodiments.

[0021] As Figure 1 shown, it is a schematic structural diagram of an intelligent construction site management system based on BIM technology provided by an embodiment of the present application. The intelligent construction site management system based on BIM technology provided by an embodiment of the present application includes: a material acceptance module, a progress simulation module, and an inventory control module; wherein, the material acceptance module is used to monitor the transportation status of materials to be delivered to the site in real time to obtain data of materials to be delivered to the site, and at the same time perform material acceptance deviation analysis on the obtained data of materials to be delivered to the site to obtain a deviation analysis index, and the deviation analysis index is used to quantify the deviation degree between the data of materials to be delivered to the site and the target data of materials to be delivered to the site; the progress simulation module is used to judge whether to perform progress simulation according to the obtained deviation analysis index. If so, simulate the delivery of materials to the site and monitor the progress changes during the material delivery process in real time and compare them with the actual progress to obtain a progress compliance score, and the progress compliance score is used to quantify the compliance degree between the simulated progress and the actual progress of the materials to be delivered to the site; the inventory control module is used to judge whether to perform inventory management according to the obtained progress compliance score. If so, obtain real-time inventory data and analyze it to obtain an inventory status evaluation value, and the inventory status evaluation value is used to evaluate the inventory management efficiency of the materials to be inventoried corresponding to the specified transportation vehicle and the specified warehouse at the construction site.

[0022] Among them, the materials to be delivered to the site are construction site materials within the specified construction area; the materials to be delivered to the site include the first materials to be delivered to the site and the second materials to be delivered to the site; the target data of materials to be delivered to the site includes the target quantity of materials to be delivered to the site, the target weight of materials to be delivered to the site, the target loading time, and the target transportation time; the real-time inventory data includes the first real-time inventory quantity and the second real-time inventory quantity; the first real-time inventory quantity is used to reflect the inventory status of the specified transportation vehicle; the second real-time inventory quantity is used to reflect the inventory status of the specified area in the construction site warehouse.

[0023] In this embodiment, the first material to be incoming is usually steel bars of a specified batch, and the second material to be incoming is usually concrete of a specified batch. The specifications of each batch of steel bars are the same, and the weights of each batch of concrete are the same. The transportation status is visually displayed through the established BIM model. The transportation status usually includes loading, loaded, in transit, and arrived. The data of the material to be incoming includes, but is not limited to, the type, weight, specification, quantity, transportation vehicle information, and supplier information of the material to be incoming, and is usually obtained by directly scanning the cargo list on the corresponding transportation vehicle of the material to be incoming through a high-definition camera.

[0024] Among them, the creation process of the BIM model is as follows: data collection and collation, including relevant information such as architectural design drawings, construction drawings, bill of quantities, and material specifications. These data need to be digitally processed and can be converted through methods such as scanning and photographing. According to the relevant information obtained from data collection and collation, a geometric model is constructed through BIM software. The model of the building can be constructed layer by layer according to the structure, layout, and shape of the building, including the establishment of components such as walls, floors, beams, and columns. During the model construction process, corresponding attribute information, including material, size, weight, etc., needs to be assigned to each component, and these attribute information will play an important role in subsequent simulation analysis and collaborative design. In the BIM model, there are complex spatial relationships between the various components of the building. Through BIM software, the spatial positions and mutual relationships of the various components can be accurately established and adjusted, so that collaborative design and collision detection of multiple professional models can be achieved under the same coordinate system.

[0025] To sum up, the existing BIM model can not only achieve design visualization, but also realize the visualization of construction, equipment operation, and collision inspection. In the transportation field, operators can intuitively view each link of the container during transportation through the BIM model, or conduct unified management and optimization of rail transit stations, carriages, and off-station spaces, so as to optimize the transportation plan in a timely manner and improve the operation efficiency.

[0026] Through the collaborative work among the material acceptance module, progress simulation module, and inventory control module in this example, the all-round and whole-process intelligent management of construction site material management, progress control, and inventory status evaluation is realized, which enables the preset personnel to make decisions based on data, and further improves the timeliness of the progress tracking and control of the incoming and outgoing materials during the intelligent construction site management process.

[0027] Further, the deviation analysis index is obtained through the following method: Obtain the actual loading duration and actual transportation duration of the material to be entered during the preset entry period. At the same time, combine the target loading duration and target transportation duration to obtain the loading duration score and transportation duration score. The loading duration score represents the ratio of the absolute value of the difference between the actual loading duration and the target loading duration to the target loading duration. The transportation duration score represents the ratio of the absolute value of the difference between the actual transportation duration and the target transportation duration to the target transportation duration. Obtain the deviation analysis coefficient of the material to be entered during the preset entry period: When the material to be entered is the first material to be entered, obtain the actual quantity of the entered material during the preset entry period and combine it with the target quantity of the entered material to obtain the material quantity score. At the same time, combine the deviation analysis parameter and the material quantity deviation weight factor in the database to obtain the deviation analysis index. The material quantity score represents the ratio of the absolute value of the difference between the actual quantity of the entered material and the target quantity of the entered material to the reference material quantity deviation. When the material to be entered is the second material to be entered, obtain the actual weight of the entered material during the preset entry period and combine it with the target weight of the entered material to obtain the material weight score. At the same time, combine the deviation analysis parameter and the material weight deviation weight factor in the database to obtain the deviation analysis index. The material weight score represents the ratio of the absolute value of the difference between the actual weight of the entered material and the target weight of the entered material to the reference material weight deviation. The deviation analysis parameter includes the obtained loading duration score, transportation duration score, and the loading duration deviation weight factor and transportation duration deviation weight factor in the database.

[0028] Among them, the specific limiting expression of the deviation analysis index is: ; ; ; ; ; ; In the formula, represents the deviation analysis index of the y-th type of material to be entered during the preset entry period, represents the first material to be entered, represents the second material to be entered, represents the loading duration deviation weight factor, represents the deviation analysis coefficient of the y-th type of material to be entered during the preset entry period, represents the loading duration score of the y-th type of material to be entered during the preset entry period, represents the actual loading duration of the y-th type of material to be entered during the preset entry period, represents the target loading duration, Indicates the weight factor of the transportation duration deviation, Indicates the transportation duration score of the y-th material to be admitted during the preset admission period, Indicates the actual transportation duration of the y-th material to be admitted during the preset admission period, Indicates the target transportation duration, Indicates the weight factor of the material quantity deviation, Indicates the material quantity score of the first material to be admitted during the preset admission period, Indicates the actual admitted material quantity of the first material to be admitted during the preset admission period, Indicates the target admitted material quantity of the first material to be admitted, Indicates the reference material quantity deviation, Indicates the weight factor of the material weight deviation, Indicates the material weight score of the second material to be admitted during the preset admission period, Indicates the actual admitted material weight of the second material to be admitted during the preset admission period, Indicates the target admitted material weight of the second material to be admitted, Indicates the reference material weight deviation.

[0029] In this embodiment, the target loading duration, target transportation duration, target admitted material quantity, and target admitted material weight are set by the construction management personnel. The reference material quantity deviation is represented by the result of summing and averaging the historical material quantity deviations of the first material to be admitted in each admission period in the database. The reference material weight deviation is represented by the result of summing and averaging the historical material weight deviations of the second material to be admitted in each admission period in the database.

[0030] The weight factor of the loading duration deviation and the weight factor of the transportation duration deviation are respectively the influence degrees of the preset loading duration deviation and transportation duration deviation in the database on the process of obtaining the deviation analysis index. Specifically, the database stores the preset weight factors corresponding to the deviation analysis index, and there is a preset mapping relationship between these weight factors and the deviation analysis index. This mapping relationship can be one-to-one or many-to-one. In practical applications, the real-time loading duration deviation and transportation duration deviation can be input into this mapping relationship to quickly obtain the corresponding weight factors, which provides an important quantitative index for evaluating the accuracy and reliability of the material acceptance deviation analysis, and further calculates the deviation analysis index more accurately.

[0031] The weight factor of material quantity deviation and the weight factor of material weight deviation are respectively the influence degrees of the preset material quantity deviation and material weight deviation in the database on the process of obtaining the deviation analysis index. Specifically, the database stores the preset weight factors corresponding to the deviation analysis index, and there is a preset mapping relationship between these weight factors and the deviation analysis index. This mapping relationship can be one-to-one or many-to-one. In practical applications, the real-time material quantity deviation and material weight deviation can be input into this mapping relationship to quickly obtain the corresponding weight factors, which provides an important quantitative index for evaluating the accuracy and reliability of material acceptance deviation analysis, and further calculates the deviation analysis index more accurately.

[0032] Among them, the loading duration deviation represents the absolute value of the difference between the actual loading duration and the target loading duration, and the transportation duration deviation represents the absolute value of the difference between the actual transportation duration and the target transportation duration; the material quantity deviation represents the absolute value of the difference between the actual incoming material quantity and the target incoming material quantity, and the material weight deviation represents the absolute value of the difference between the actual incoming material weight and the target incoming material weight.

[0033] In this example, the value ranges of the weight factor of loading duration deviation, the weight factor of transportation duration deviation, the weight factor of material quantity deviation, and the weight factor of material weight deviation are all limited between 0 and 1. When , the sum of the weight factor of loading duration deviation, the weight factor of transportation duration deviation, and the weight factor of material quantity deviation in this example is 1; when , the sum of the weight factor of loading duration deviation, the weight factor of transportation duration deviation, and the weight factor of material weight deviation in this example is 1.

[0034] The aforementioned database is a database established before the design of the intelligent construction site management system based on BIM technology for storing various setting data. The database includes but is not limited to the preset deviation analysis index, the preset progress compliance score, the preset inventory status evaluation value, as well as the preset incoming time period and progress simulation time period. The various values therein are directly set by technical personnel. Among them, the setting basis of the preset deviation analysis index can be determined according to the actual material acceptance scenarios of each material to be incoming. For example, the preset deviation analysis index is represented by the result of summing and averaging the historical deviation analysis indexes of each material to be incoming in each incoming time period in the database. In addition, the various values in the database can be set and fine-tuned by technical personnel according to actual debugging.

[0035] It should be understood that when , the deviation analysis index increases with the increase of the loading duration score, the transportation duration score, and the material quantity score. When When the deviation analysis index increases with the increase of the loading time fraction, transportation time fraction, and material weight fraction. Among them, the loading time fraction increases with the increase of the loading time deviation, the transportation time fraction increases with the increase of the transportation time deviation, the material quantity fraction increases with the increase of the material quantity deviation, and the material weight fraction increases with the increase of the material weight deviation.

[0036] It should be noted that when the material quantity fraction also indirectly affects the value of the loading time fraction. When the quantity of materials increases, the loading operation becomes more complex and time-consuming because more time is needed to accurately count, classify, stack, and secure the materials to ensure safety and stability during transportation. Therefore, the increase in the material quantity fraction is often accompanied by an increase in the loading time fraction because more time is required to handle these quantity differences.

[0037] When the material weight fraction also indirectly affects the value of the loading time fraction. When the material weight increases, heavier materials require more strength and skills to handle and stack, which increases the difficulty and time of loading. Therefore, the increase in the material weight fraction indirectly increases the value of the loading time fraction.

[0038] By considering the indirect influence mechanism of the material quantity fraction and material weight fraction on the loading time fraction, it helps to more accurately evaluate various factors in the process of material in and out of the site, thereby formulating more effective management strategies, and further improving the timeliness of the progress tracking and control of in and out materials in the intelligent construction site management process, effectively solving the problem of low timeliness of the progress tracking and control of in and out materials in the intelligent construction site management process in the existing technology.

[0039] Furthermore, the specific process of judging whether to execute the progress simulation according to the obtained deviation analysis index is as follows: judge whether the obtained deviation analysis index is less than the preset deviation analysis index in the database. If the obtained deviation analysis index is less than the preset deviation analysis index in the database, complete the deviation analysis of material acceptance and record the materials to be entered the site corresponding to the completed deviation analysis of material acceptance as the materials entered the site, and at the same time, monitor the simulation progress of the materials to be entered the site in the progress simulation process in real time. If the obtained deviation analysis index is not less than the preset deviation analysis index in the database, send a material acceptance warning instruction and re-conduct the deviation analysis of material acceptance. The materials entered the site include the first materials entered the site and the second materials entered the site. The progress simulation process includes the progress simulation process of the first materials entered the site and the progress simulation process of the second materials entered the site. The material acceptance warning instruction is used to prompt the preset personnel to check the material acceptance process.

[0040] In this embodiment, the simulation progress in the progress simulation process generally refers to the material acceptance process and the corresponding sequence, that is: arrival inspection, sampling inspection, recording and verification, warehousing management; in this example, by monitoring the simulation progress of the materials to be delivered during the progress simulation process in real time and comparing it with the actual progress, the arrival situation and progress compliance degree of the materials to be delivered can be evaluated more accurately. This accuracy helps managers to detect progress delays or deviations in a timely manner and enhances the risk management ability.

[0041] Furthermore, the specific steps for obtaining the progress compliance score are as follows: when the obtained deviation analysis index is less than the preset deviation analysis index in the database, obtain the first material sorting duration score and the second material transfer duration score at the end of the progress simulation period. The first material sorting duration score represents the ratio of the first material sorting duration to the total duration of the progress simulation period, and the second material transfer duration score represents the ratio of the second material transfer duration to the total duration of the progress simulation period; obtain the first material arrival time deviation and the second material arrival time deviation at the end of the progress simulation period, and at the same time, combine the obtained deviation analysis index, the maximum allowable material arrival time deviation in the database, and the progress compliance weight factor to obtain the progress compliance score. The first material arrival time deviation represents the time difference between the time when the first incoming material arrives at the specified location and the target arrival time, and the second material arrival time deviation represents the time difference between the time when the second incoming material arrives at the specified location and the target arrival time. The progress compliance weight factor includes a material delay duration weight factor, a material arrival time deviation weight factor, and a deviation analysis index weight factor.

[0042] Among them, when the obtained deviation analysis index is less than the preset deviation analysis index in the database, the specific limit expression of the progress compliance score is: ; In the formula, e is the natural constant, represents the progress compliance score of the incoming materials during the progress simulation process, represents the deviation analysis index weight factor, represents the one deviation analysis index of the materials to be delivered within the preset arrival period, represents the two deviation analysis index of the materials to be delivered within the preset arrival period, represents the material delay duration weight factor, represents the first material sorting duration score of the first incoming material at the end of the progress simulation period, represents the second material transfer duration score of the second incoming material at the end of the progress simulation period, represents the material arrival time deviation weight factor, Indicates the arrival time deviation of the first incoming material at the end of the schedule simulation period. Indicates the second material arrival time deviation at the end of the second entry schedule simulation period. Indicates the maximum allowable material arrival time deviation.

[0043] In this embodiment, the total duration of the progress simulation period and the target arrival time are set by the construction management personnel, and the maximum allowable material arrival time deviation represents the maximum value of the material arrival time deviation of the materials to be delivered to the site at the end of each progress simulation period in the database.

[0044] The database stores preset weight factors that are closely related to the progress compliance score. A pre-defined mapping relationship is established between these weight factors and the corresponding deviation analysis index, material delay duration score and material arrival time deviation. It is worth noting that this mapping is not set arbitrarily. It can be a one-to-one correspondence or a many-to-one relationship. In actual applications, when it is necessary to evaluate the progress compliance of incoming materials during the progress simulation process, the deviation analysis index, material delay duration score and material arrival time deviation obtained in real time can be directly input into this preset mapping relationship, so that the deviation analysis index weight factor, material delay duration weight factor and material arrival time deviation weight factor corresponding to the progress compliance score can be obtained quickly and accurately.

[0045] Among them, the material delay time score is the sum of the first material sorting time score and the second material transfer time score, and the material arrival time deviation is the sum of the first material arrival time deviation and the second material arrival time deviation; what is particularly important is that, in order to ensure the consistency and comparability of the evaluation, the value ranges of the deviation analysis index weight factor, the material delay time weight factor and the material arrival time deviation weight factor are strictly limited to between 0 and 1, and the sum of the three is 1.

[0046] Specifically, , when the maximum allowable material arrival time deviation is 5min, the statistical table of progress compliance score changes is shown in Table 1: Table 1 Statistics of changes in progress scores It should be understood that, as can be seen from Table 1, the progress compliance score decreases with the increase of the deviation analysis index, the first material sorting time score, the second material transfer time score, the first material arrival time deviation and the second material arrival time deviation.

[0047] It should be noted that the deviation analysis index affects the value of the first material sorting duration score, and thus affects the value of the deviation of the first material arrival time. When the deviation analysis index increases, it means that the possible deviation in the material sorting link may increase, which may lead to a decrease in the first material sorting duration score. Because the sorting process is interfered with or delayed, that is, the extension of the first material sorting duration will directly lead to an increase in the deviation of the first material arrival time. Therefore, the deviation analysis index indirectly affects the deviation of the first material arrival time by affecting the first material sorting duration score.

[0048] The second material transfer duration score also indirectly affects the value of the second material arrival time deviation. When the second material transfer duration score decreases, it means that there may be delays in the transfer process of the second incoming material, resulting in a decrease in transfer efficiency. The decrease in transfer efficiency will directly lead to an increase in the deviation of the second material arrival time. Therefore, the second material transfer duration score directly reflects the efficiency of the transfer process and thus affects the second material arrival time deviation.

[0049] By considering the above indirect influence mechanism, it is possible to more comprehensively understand how each link in the material progress tracking and control is interrelated. This understanding helps to more accurately predict and evaluate the actual situation of the material progress, so as to formulate more effective control strategies, thereby improving the timeliness of the in-out material progress tracking and control in the intelligent construction site management process, and effectively solving the problem of low timeliness of the in-out material progress tracking and control in the intelligent construction site management process in the existing technology.

[0050] Furthermore, the specific process of judging whether to execute inventory management according to the obtained progress compliance score is as follows: judge whether the obtained progress compliance score is greater than the preset progress compliance score in the database. If the obtained progress compliance score is greater than the preset progress compliance score in the database, complete the progress simulation and record the incoming materials corresponding to the completed progress simulation as materials to be inventoried, and at the same time, monitor the warehousing status of the materials to be inventoried in the inventory management process in real time. If the obtained progress compliance score is not greater than the preset progress compliance score in the database, send a progress simulation warning instruction and an instruction to re-perform the progress simulation. The materials to be inventoried include the first materials to be inventoried and the second materials to be inventoried. Inventory management includes the inventory management of designated transport vehicles and the inventory management of designated warehouses at the construction site. The progress simulation warning instruction is used to prompt the preset personnel to check the progress simulation process.

[0051] In this embodiment, the preset progress compliance score is represented by the result of summing and averaging the historical progress simulation scores of each incoming material in the database during the historical progress simulation process; by comparing the obtained progress compliance score with the preset progress compliance score in the database, this example can accurately determine whether the actual situation of the current material progress meets the expectations. Secondly, the inventory management in this example not only includes the inventory management of designated transport vehicles but also covers the inventory management of designated warehouses at the construction site, achieving full-chain management of materials. This comprehensive management method ensures the safety and controllability of materials during transportation and warehousing.

[0052] Furthermore, the inventory status evaluation value is obtained through the following method: When the obtained progress compliance score is greater than the preset progress compliance score in the database and the current inventory management time is not equal to 1: Obtain the vehicle inventory turnover rate, which is the sum of the first vehicle inventory turnover rate and the second vehicle inventory turnover rate. The first vehicle inventory turnover rate represents the ratio of the absolute value of the difference between the quantity of the first pending inventory materials of the designated transport vehicle at the current inventory management time and the quantity of the first pending inventory materials at the previous inventory management time to the initial quantity of the first pending inventory materials. The second vehicle inventory turnover rate represents the ratio of the absolute value of the difference between the weight of the second pending inventory materials of the designated transport vehicle at the current inventory management time and the weight of the second pending inventory materials at the previous inventory management time to the initial weight of the second pending inventory materials; Obtain the warehouse inventory turnover rate, which is the sum of the first warehouse inventory turnover rate and the second warehouse inventory turnover rate. The first warehouse inventory turnover rate represents the ratio of the absolute value of the difference between the quantity of the first pending inventory materials of the designated warehouse at the current inventory management time and the quantity of the first pending inventory materials at the previous inventory management time to the initial quantity of the first pending inventory materials. The second warehouse inventory turnover rate represents the ratio of the absolute value of the difference between the weight of the second pending inventory materials of the designated warehouse at the current inventory management time and the weight of the second pending inventory materials at the previous inventory management time to the initial weight of the second pending inventory materials; Obtain the inventory status factor and combine the obtained vehicle inventory turnover rate, warehouse inventory turnover rate, and progress compliance score to obtain the inventory status evaluation value. The inventory status factor includes the first inventory status factor and the second inventory status factor. The first inventory status factor is used to visualize the inventory status of the designated transport vehicle, and the second inventory status factor is used to visualize the inventory status of the designated warehouse.

[0053] Among them, the specific limiting expression of the inventory status evaluation value is: ; ; ; ; ; ; ; where t is the number of the current inventory management moment, , T is the total quantity at the current inventory management moment, e is the natural constant, represents the inventory status evaluation value of the materials to be inventoried during the inventory management process, represents the progress compliance score of the incoming materials during the progress simulation process, represents the preset progress compliance score, represents the first inventory status factor of the specified transport vehicle at the current inventory management moment t, represents the second inventory status factor of the specified warehouse at the current inventory management moment t, represents the vehicle inventory turnover rate of the materials to be inventoried in the specified transport vehicle during the inventory management process, represents the first vehicle inventory turnover rate of the first material to be inventoried in the specified transport vehicle during the inventory management process, represents the first vehicle inventory turnover rate of the second material to be inventoried in the specified transport vehicle during the inventory management process, represents the warehouse inventory turnover rate of the materials to be inventoried in the specified warehouse during the inventory management process, represents the first warehouse inventory turnover rate of the first material to be inventoried in the specified warehouse during the inventory management process, represents the second warehouse inventory turnover rate of the second material to be inventoried in the specified warehouse during the inventory management process, represents the quantity of the first material to be inventoried in the specified transport vehicle at the current inventory management moment t, represents the initial quantity of the first material to be inventoried in the specified transport vehicle, represents the quantity of the first material to be inventoried in the specified transport vehicle at the previous inventory management moment t - 1, represents the weight of the second material to be inventoried in the specified transport vehicle at the current inventory management moment t, represents the initial weight of the second material to be inventoried in the specified transport vehicle, represents the weight of the second material to be inventoried in the specified transport vehicle at the previous inventory management moment t - 1, represents the quantity of the first material to be inventoried in the specified warehouse at the current inventory management moment t, represents the initial quantity of the first material to be inventoried in the specified warehouse, represents the quantity of the first material to be inventoried in the specified warehouse at the previous inventory management time t - 1. represents the weight of the second material to be inventoried in the specified warehouse at the current inventory management time t. represents the initial weight of the second material to be inventoried in the specified warehouse. represents the weight of the second material to be inventoried in the specified warehouse at the previous inventory management time t - 1.

[0054] In this embodiment, the initial quantity of the first material to be inventoried in the specified transport vehicle, the initial weight of the second material to be inventoried in the specified transport vehicle, the initial quantity of the first material to be inventoried in the specified warehouse, and the initial weight of the first material to be inventoried in the specified warehouse are all not equal to 0.

[0055] The first inventory status factor usually takes values of 0, 0.5, and 1. It is monitored in real time through a high - definition camera deployed inside the specified transport vehicle, and corresponding instructions are sent through the sensors in the high - definition camera, usually including no - inventory instruction, under - full - inventory instruction, and full - inventory instruction. When receiving the no - inventory instruction, it indicates that there is no material to be inventoried in the specified transport vehicle at the current inventory management time, and the corresponding first inventory status factor is recorded as 0. When receiving the under - full - inventory instruction, it indicates that the material to be inventoried in the specified transport vehicle is not full at the current inventory management time, and the corresponding first inventory status factor is recorded as 0.5. When receiving the full - inventory instruction, it indicates that the material to be inventoried in the specified transport vehicle is full at the current inventory management time, and the corresponding first inventory status factor is recorded as 1.

[0056] The second inventory status factor usually takes values of 0 and 1. It is monitored in real time through a high - definition camera deployed inside the specified warehouse, and corresponding instructions are sent through the sensors in the high - definition camera, usually including replenishment - material instruction and continue - monitoring instruction. When receiving the replenishment - material instruction, it indicates that the specified warehouse needs to replenish the material to be inventoried at the current inventory management time, and the corresponding second inventory status factor is recorded as 0. When receiving the continue - monitoring instruction, it indicates that the specified warehouse does not need to replenish the material to be inventoried at the current inventory management time, and the corresponding second inventory status factor is recorded as 1.

[0057] It should be understood that the inventory status evaluation value increases with the increase of the progress compliance score and decreases with the increase of the vehicle inventory turnover rate and the warehouse inventory turnover rate. When the first vehicle inventory turnover rate is related to the deviation of the quantity of the first material to be inventoried in the specified transport vehicle (i.e., increases as the increase of the second quantity deviation of the materials to be inventoried in the specified transport vehicle (i.e., increases as the increase of the first quantity deviation of the materials to be inventoried in the specified warehouse (i.e., increases as the increase of the second quantity deviation of the materials to be inventoried in the specified warehouse (i.e., increases as the increase of the second quantity deviation of the materials to be inventoried in the specified warehouse (i.e.,

[0058] It should be noted that the progress compliance score also indirectly affects the values of the vehicle inventory turnover rate and the warehouse inventory turnover rate. When the progress compliance score increases, it means that the consistency between the actual progress and the planned progress increases, which indicates that the use and transportation of the materials to be inventoried are carried out as expected. In this case, the inventory turnover rates of the vehicles and warehouses also increase accordingly, because the materials to be inventoried can enter and exit in a timely manner according to the plan, reducing the backlog and waiting time, which helps to plan and arrange the transportation and storage of materials in advance. That is, efficient scheduling and coordination help to improve the operation efficiency of vehicles and warehouses, and then improve the vehicle inventory turnover rate and the warehouse inventory turnover rate.

[0059] By considering the above indirect influence mechanism, the dispatcher can more easily schedule the vehicles and warehouses according to the plan, reduce the scheduling chaos and delays caused by progress mismatch, and then improve the timeliness of the progress tracking and control of the in-and-out materials in the intelligent construction site management process, effectively solving the problem of low timeliness of the progress tracking and control of the in-and-out materials in the intelligent construction site management process in the prior art.

[0060] Furthermore, real-time inventory data is obtained and analyzed to obtain an inventory status evaluation value. After that, it also includes judging whether the inventory management is completed based on the obtained inventory status evaluation value. The specific process is as follows: judge whether the obtained inventory status evaluation value is greater than the preset inventory status evaluation value in the database: if the obtained inventory status evaluation value is greater than the preset inventory status evaluation value in the database, the inventory management is completed and the materials to be inventoried corresponding to the completed inventory management are recorded as materials to be shipped out; if the obtained inventory status evaluation value is not greater than the preset inventory status evaluation value in the database, the materials to be inventoried corresponding to the uncompleted inventory management are recorded as non-shippable materials, and at the same time, an inventory management warning instruction is sent and an instruction to re-perform the inventory management is sent; the inventory management warning instruction is used to prompt the preset personnel to check the inventory management process.

[0061] In this embodiment, the preset inventory status evaluation value is represented by the result of summing and averaging the historical inventory status evaluation values of each inventory material in the database during the historical inventory management process; in this example, by comparing the obtained inventory status evaluation value with the preset inventory status evaluation value, it is possible to automatically determine whether the inventory management is completed. This intelligent decision-making method reduces the error of human judgment. Secondly, by classifying the materials to be inventoried into materials to be shipped out and materials that cannot be shipped out according to the inventory management results, the refined management of materials is realized, and the stability and reliability of the overall management are improved.

[0062] As Figure 2 shown, it is a flowchart of a smart construction site management method based on BIM technology provided by an embodiment of the present application. The method provided by the embodiment of the present application applied to a smart construction site management system based on BIM technology includes the following steps: S1, real-time monitoring the transportation status of materials to be delivered to obtain data on materials to be delivered, and at the same time, performing material acceptance deviation analysis based on the obtained data on materials to be delivered to obtain a deviation analysis index, where the deviation analysis index is used to quantify the deviation degree between the data on materials to be delivered and the target data on materials to be delivered; S2, judging whether to perform progress simulation according to the obtained deviation analysis index. If so, simulating the arrival of materials and real-time monitoring the progress changes during the arrival process of materials and comparing them with the actual progress to obtain a progress compliance score, where the progress compliance score is used to quantify the compliance degree between the simulated progress and the actual progress of the materials to be delivered; S3, judging whether to perform inventory management according to the obtained progress compliance score. If so, obtaining real-time inventory data and analyzing it to obtain an inventory status evaluation value, where the inventory status evaluation value is used to evaluate the inventory management efficiency of the materials to be inventoried corresponding to a specified transport vehicle and a specified warehouse at the construction site.

[0063] In this embodiment, as Figure 3 shown, it is a flowchart of construction site material management provided by an embodiment of the present application, which realizes the comprehensive, real-time, and efficient management of construction site materials. From real-time monitoring of the material transportation status to deviation analysis, then to progress simulation and comparison with the actual progress, and finally to inventory management and efficiency evaluation, a closed-loop management process is formed. This not only improves the accuracy and efficiency of material management, but also helps to reduce construction costs and improve the overall operation efficiency of the construction site.

[0064] The equipment provided by the embodiments of the present application for the intelligent construction site management system based on BIM technology includes: a data collector inventory machine, a timer, a digital level sensor, and a load sensor; the data collector inventory machine is used to obtain the first real-time inventory quantity and the second real-time inventory quantity; the timer is used to obtain the construction management duration data; the construction management duration data includes the actual loading duration, the actual transportation duration, the first material sorting duration, the second material transfer duration, the time when the first incoming material arrives at the designated location, and the time when the second incoming material arrives at the designated location; the digital level sensor is used to obtain the actual incoming material quantity and the first material quantity to be stocked; the load sensor is used to obtain the actual incoming material weight and the second material weight to be stocked.

[0065] In summary, the embodiments of the present application perform material acceptance deviation analysis on the obtained material data to be incoming to obtain a deviation analysis index, and then determine whether to perform progress simulation based on the obtained deviation analysis index. If so, simulate the incoming of materials and obtain a progress compliance score. Finally, determine whether to perform inventory management based on the obtained progress compliance score. If so, obtain real-time inventory data and perform analysis to obtain an inventory status evaluation value, thereby realizing a more accurate evaluation of the material in-out status, and further realizing an improvement in the timeliness of the progress tracking and control of the in-out materials during the intelligent construction site management process, effectively solving the problem of low timeliness of the progress tracking and control of the in-out materials during the intelligent construction site management process in the prior art.

[0066] Those skilled in the art should understand that the embodiments of the present invention can be provided as a method, a system, or a computer program product. Therefore, the present invention can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0067] The present invention is described with reference to the flowcharts and / or block diagrams of systems, devices to be protected (systems), and computer program products according to the embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, and the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to be protected to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices to be protected generate a device for realizing the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0068] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to work in a particular manner, such that the instructions stored in the computer-readable memory produce a manufacture including an instruction device that implements the functions specified in one or more of the procedures Figure 1 and / or blocks Figure 1 specified in one or more of the procedures and / or blocks

[0069] These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus, such that a series of operational steps are performed on the computer or other programmable apparatus to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable apparatus provide steps for implementing the functions specified in one or more of the procedures Figure 1 and / or blocks Figure 1 specified in one or more of the procedures and / or blocks

[0070] Although the preferred embodiments of the present invention have been described, additional changes and modifications can be made by those skilled in the art once they learn of the basic inventive concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications that fall within the scope of the present invention

[0071] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations

Claims

1. The intelligent construction site management system based on BIM technology is characterized in that Including: A material acceptance module, a progress simulation module, and an inventory control module; Among them, the material acceptance module is used to monitor the transportation status of the materials to be delivered to the site in real time to obtain the data of the materials to be delivered to the site, and at the same time, conduct a deviation analysis of the material acceptance based on the obtained data of the materials to be delivered to the site to obtain a deviation analysis index, and the deviation analysis index is used to quantify the deviation degree between the data of the materials to be delivered to the site and the target data of the materials to be delivered to the site; The progress simulation module is used to judge whether to perform progress simulation according to the obtained deviation analysis index. If so, simulate the material arrival and monitor the progress change during the material arrival process in real time and compare it with the actual progress to obtain a progress compliance score, and the progress compliance score is used to quantify the compliance degree between the simulated progress and the actual progress of the materials to be delivered to the site; The inventory control module is used to judge whether to perform inventory management according to the obtained progress compliance score. If so, obtain the real-time inventory data and conduct an analysis to obtain an inventory status evaluation value, and the inventory status evaluation value is used to evaluate the inventory management efficiency of the materials to be inventoried corresponding to the designated transport vehicle and the designated warehouse at the construction site.

2. The intelligent construction site management system based on BIM technology according to claim 1, characterized in that, The materials to be delivered to the site are the construction site materials in the designated construction area; The materials to be delivered to the site include the first materials to be delivered to the site and the second materials to be delivered to the site; The target data of the materials to be delivered to the site include the target quantity of the materials to be delivered to the site, the target weight of the materials to be delivered to the site, the target loading time, and the target transportation time; The real-time inventory data includes the first real-time inventory quantity and the second real-time inventory quantity; The first real-time inventory quantity is used to reflect the inventory status of the designated transport vehicle; The second real-time inventory quantity is used to reflect the inventory status of the designated area in the construction site warehouse.

3. The intelligent construction site management system based on BIM technology according to claim 1, characterized in that, The deviation analysis index is obtained through the following method: Obtain the actual loading time and actual transportation time of the materials to be delivered to the site within the preset arrival time period, and at the same time, combine the target loading time and target transportation time to obtain the loading time score and transportation time score. The loading time score represents the ratio of the absolute value of the difference between the actual loading time and the target loading time to the target loading time, and the transportation time score represents the ratio of the absolute value of the difference between the actual transportation time and the target transportation time to the target transportation time; Obtain the deviation analysis coefficient of the materials to be delivered to the site within the preset arrival time period: When the materials to be delivered to the site are the first materials to be delivered to the site, obtain the actual quantity of the materials arriving at the site within the preset arrival time period and combine it with the target quantity of the materials to be delivered to the site to obtain the material quantity score, and at the same time, combine the deviation analysis parameters and the material quantity deviation weight factor in the database to obtain the deviation analysis index. The material quantity score represents the ratio of the absolute value of the difference between the actual quantity of the materials arriving at the site and the target quantity of the materials to be delivered to the site to the reference material quantity deviation; When the materials to be delivered to the site are the second materials to be delivered to the site, obtain the actual weight of the materials arriving at the site within the preset arrival time period and combine it with the target weight of the materials to be delivered to the site to obtain the material weight score, and at the same time, combine the deviation analysis parameters and the material weight deviation weight factor in the database to obtain the deviation analysis index. The material weight score represents the ratio of the absolute value of the difference between the actual weight of the materials arriving at the site and the target weight of the materials to be delivered to the site to the reference material weight deviation; The deviation analysis parameters include the obtained loading duration fraction, transportation duration fraction, as well as the loading duration deviation weight factor and transportation duration deviation weight factor in the database.

4. The intelligent construction site management system based on BIM technology according to claim 1, characterized in that, The specific process of determining whether to perform progress simulation based on the obtained deviation analysis index is as follows: Determine whether the obtained deviation analysis index is less than the preset deviation analysis index in the database: If the obtained deviation analysis index is less than the preset deviation analysis index in the database, complete the material acceptance deviation analysis, mark the materials to be entered the site corresponding to the completed material acceptance deviation analysis as the materials entered the site, and simultaneously monitor the simulation progress of the materials to be entered the site during the progress simulation in real time; If the obtained deviation analysis index is not less than the preset deviation analysis index in the database, send a material acceptance warning instruction and re - conduct the material acceptance deviation analysis; The materials entered the site include the first materials entered the site and the second materials entered the site; The progress simulation process includes the first - entered - material progress simulation process and the second - entered - material progress simulation process; The material acceptance warning instruction is used to prompt the preset personnel to check the material acceptance process.

5. The intelligent construction site management system based on BIM technology according to claim 1, characterized in that The specific steps for obtaining the progress compliance fraction are as follows: When the obtained deviation analysis index is less than the preset deviation analysis index in the database, obtain the first material sorting duration fraction and the second material transfer duration fraction at the end of the progress simulation period. The first material sorting duration fraction represents the ratio of the first material sorting duration to the total duration of the progress simulation period, and the second material transfer duration fraction represents the ratio of the second material transfer duration to the total duration of the progress simulation period; Obtain the first material arrival time deviation and the second material arrival time deviation at the end of the progress simulation period. At the same time, combine the obtained deviation analysis index, the maximum allowable material arrival time deviation in the database, and the progress compliance weight factor to obtain the progress compliance fraction. The first material arrival time deviation represents the time difference between the time when the first - entered - material arrives at the designated location and the target arrival time, and the second material arrival time deviation represents the time difference between the time when the second - entered - material arrives at the designated location and the target arrival time. The progress compliance weight factor includes the material delay duration weight factor, the material arrival time deviation weight factor, and the deviation analysis index weight factor.

6. The intelligent construction site management system based on BIM technology according to claim 1, wherein The specific process of determining whether to perform inventory management based on the obtained progress compliance fraction is as follows: Determine whether the obtained progress compliance fraction is greater than the preset progress compliance fraction in the database: If the obtained progress compliance fraction is greater than the preset progress compliance fraction in the database, complete the progress simulation, mark the materials entered the site corresponding to the completed progress simulation as the materials to be inventoried, and simultaneously monitor the warehousing status of the materials to be inventoried during the inventory management in real time; If the obtained progress compliance fraction is not greater than the preset progress compliance fraction in the database, send a progress simulation warning instruction and a command to re - conduct the progress simulation; The materials to be inventoried include the first materials to be inventoried and the second materials to be inventoried; The inventory management includes the inventory management of designated transport vehicles and the inventory management of designated warehouses at the construction site; The progress simulation warning instruction is used to prompt the preset personnel to check the progress simulation process.

7. The intelligent construction site management system based on BIM technology according to claim 1, wherein, The inventory status evaluation value is obtained by the following method: When the obtained progress compliance score is greater than the preset progress compliance score in the database and the current inventory management time is not equal to 1: Obtain the vehicle inventory turnover rate, which is the sum of the first vehicle inventory turnover rate and the second vehicle inventory turnover rate. The first vehicle inventory turnover rate represents the ratio of the absolute value of the difference between the first quantity of materials to be stocked of the specified transport vehicle at the current inventory management time and the first quantity of materials to be stocked at the previous inventory management time to the initial first quantity of materials to be stocked. The second vehicle inventory turnover rate represents the ratio of the absolute value of the difference between the second weight of materials to be stocked of the specified transport vehicle at the current inventory management time and the second weight of materials to be stocked at the previous inventory management time to the initial second weight of materials to be stocked; Obtain the warehouse inventory turnover rate, which is the sum of the first warehouse inventory turnover rate and the second warehouse inventory turnover rate. The first warehouse inventory turnover rate represents the ratio of the absolute value of the difference between the first quantity of materials to be stocked in the specified warehouse at the current inventory management time and the first quantity of materials to be stocked at the previous inventory management time to the initial first quantity of materials to be stocked. The second warehouse inventory turnover rate represents the ratio of the absolute value of the difference between the second weight of materials to be stocked in the specified warehouse at the current inventory management time and the second weight of materials to be stocked at the previous inventory management time to the initial second weight of materials to be stocked; Obtain the inventory status factor and combine the obtained vehicle inventory turnover rate, warehouse inventory turnover rate, and progress compliance score to obtain the inventory status evaluation value. The inventory status factor includes the first inventory status factor and the second inventory status factor. The first inventory status factor is used to visualize the inventory status of the specified transport vehicle, and the second inventory status factor is used to visualize the inventory status of the specified warehouse.

8. The intelligent construction site management system based on BIM technology according to claim 1, wherein, After obtaining the real-time inventory data and analyzing it to obtain the inventory status evaluation value, it also includes judging whether the inventory management is completed based on the obtained inventory status evaluation value. The specific process is as follows: Judge whether the obtained inventory status evaluation value is greater than the preset inventory status evaluation value in the database: If the obtained inventory status evaluation value is greater than the preset inventory status evaluation value in the database, the inventory management is completed and the materials to be stocked corresponding to the completed inventory management are recorded as materials to be shipped out; If the obtained inventory status evaluation value is not greater than the preset inventory status evaluation value in the database, the materials to be stocked corresponding to the uncompleted inventory management are recorded as non-shippable materials, and at the same time, an inventory management warning instruction is sent and an instruction to re-perform inventory management is sent; The inventory management warning instruction is used to prompt the preset personnel to check the inventory management process.

9. A method applied to the BIM technology-based intelligent construction site management system according to any one of claims 1-8, characterized in that It includes the following steps: S1, Real-time monitor the transportation status of the materials to be imported to obtain the data of the materials to be imported, and at the same time, conduct a material acceptance deviation analysis based on the obtained data of the materials to be imported to obtain a deviation analysis index. The deviation analysis index is used to quantify the deviation degree between the data of the materials to be imported and the target imported material data; S2. Determine whether to perform progress simulation according to the obtained deviation analysis index. If so, simulate the material arrival and monitor the progress change during the material arrival process in real time, and compare it with the actual progress to obtain a progress compliance score, where the progress compliance score is used to quantify the compliance degree between the simulated progress and the actual progress of the material to be arrived. S3. Determine whether to perform inventory management according to the obtained progress compliance score. If so, obtain the real-time inventory data and analyze it to obtain an inventory status evaluation value, where the inventory status evaluation value is used to evaluate the inventory management efficiency of the material to be inventoried corresponding to the specified transport vehicle and the specified warehouse at the construction site.

10. Equipment applied to the intelligent construction site management system based on BIM technology described in any one of claims 1-8, characterized in that, Including: Data collector inventory checker, timer, digital level sensor, and load sensor; The data collector inventory checker is used to obtain the first real-time inventory quantity and the second real-time inventory quantity; The timer is used to obtain the construction management duration data; The construction management duration data includes the actual loading duration, the actual transportation duration, the first material sorting duration, the second material transfer duration, the time when the first arrival material reaches the specified location, and the time when the second arrival material reaches the specified location; The digital level sensor is used to obtain the actual arrival material quantity and the first material quantity to be inventoried; The load sensor is used to obtain the actual arrival material weight and the second material weight to be inventoried.

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