BIM-based building construction whole-process information closed-loop collaborative management and control system and method

Abstract

The application discloses a BIM-based building construction whole-process information closed-loop collaborative management and control system and method, and mainly relates to the field of building construction collaborative management and control. The system is provided with a construction process cross-closed-loop detection unit, a delay redundancy identification unit and a whole-process implicit lag detection unit. Specifically, the construction process cross-closed-loop detection unit realizes dynamic conflict prediction and self-adaptive collaborative regulation of multi-process cross construction, lays a foundation for subsequent management and control links, the delay redundancy identification unit is based on whole-process construction period data overall analysis, accurately identifies construction period delay redundancy risks, classifies and optimizes construction period management and control strategies, balances construction risks and construction efficiency, realizes dynamic optimization management and control of construction period, and the whole-process implicit lag detection unit accurately checks implicit rework lag risks, eliminates late construction hazards, and guarantees construction whole-cycle quality and progress stability.

Description

Technical Field

[0001] This invention relates to the field of collaborative management and control in building construction, specifically a BIM-based closed-loop collaborative management and control system and method for the entire building construction process. Background Technology

[0002] The current construction industry is showing a trend of large-scale, complex, and multi-process cross-operation. Projects such as super high-rise buildings, complexes, and large-scale infrastructure projects have many construction processes, high degree of overlap in work space, and dense schedule nodes. The traditional construction management and control model has obvious defects of fragmentation, lag and subjectivity.

[0003] Currently, in terms of process coordination and management, the traditional model cannot predict in advance the space occupation conflicts and dynamic misalignment of the construction period caused by the cross-operation of multiple processes. Most of the time, passive rectification is carried out only after construction collisions, process stagnation and construction delays occur, which can easily lead to rework, idle work and construction stagnation, seriously affecting construction efficiency. Meanwhile, in terms of construction delay and redundancy management, it can only identify the explicit delay of a single construction process. It cannot coordinate the complementary and redundant offsetting relationships between delayed and non-delayed processes throughout the entire process, making it difficult to capture the fluctuation pattern of redundancy in the construction process and predict the risk of delay in advance. As a result, the delay of some processes often accumulates into the overall overdue period.

[0004] To address the aforementioned technical shortcomings, a BIM-based closed-loop collaborative management and control system and method for the entire construction process is proposed. The aim is to construct a BIM-based closed-loop collaborative management and control system for the entire construction process, enabling intelligent management and control across all dimensions of construction, from conflict control and schedule optimization to risk mitigation. Summary of the Invention

[0005] The purpose of this invention is to solve the problems mentioned above by proposing a BIM-based closed-loop collaborative management and control system and method for the entire construction process.

[0006] The objective of this invention can be achieved through the following technical solution: a BIM-based closed-loop collaborative management and control system for the entire construction process, wherein the system includes: The construction process cross-loop detection unit performs cross-loop detection on the entire construction process. Based on the cross-loop detection, it predicts dynamic conflicts caused by new process overlaps, work space occupation, and schedule adjustments when the current process is executed collaboratively, and uses this to carry out collaborative control. The delay redundancy identification unit performs delay redundancy identification on the entire construction process after completing coordinated control. The full-process implicit lag detection unit performs implicit lag detection on the entire construction process after the delay redundancy identification is passed.

[0007] Furthermore, the cross-loop detection process in the construction process cross-loop detection unit is as follows: The execution sequence of the entire construction process is obtained by acquiring the BIM 3D construction model and arranging them according to the execution sequence. The types of adjacent processes are determined, the space occupied by adjacent processes in the building construction stage is obtained, and the construction period delay due to the cross-execution of corresponding construction processes is extracted based on the space occupied stage.

[0008] Furthermore, if the area occupied by adjacent process operations during the construction phase exceeds the area threshold, it is marked as a construction phase with overlapping spaces; if the area occupied by adjacent process operations during the construction phase does not exceed the area threshold, it is inferred that there is no overlap in the current construction phase, and it is marked as a construction phase without overlap in spaces.

[0009] Furthermore, during the spatial overlay construction phase, if the delay in the construction period due to the overlapping execution of corresponding construction processes exceeds the delay threshold, a single execution instruction will be generated and uploaded to the system. After receiving the instruction, the system will perform spatial overlay scheduling of the current building construction process, while staggering the time nodes of the overlapping executions, and prioritizing single execution when necessary. If the delay in the construction period due to the overlapping of the corresponding construction processes does not exceed the delay threshold during the spatial overlay construction phase, it can be inferred that the overlapping of the construction processes has no impact and no changes are made to the process execution. During the construction phase without overlapping spaces, if the delay in the construction period due to the cross-execution of the corresponding construction processes exceeds the delay threshold, a non-cross-execution instruction will be generated and uploaded to the system. After receiving the instruction, the system will execute each process of the current building construction individually without cross-execution. In the construction phase without spatial overlap, if the delay in the corresponding construction process does not exceed the delay threshold, an adaptive cross-execution instruction is generated and uploaded to the system. After receiving the instruction, the system makes a cross-execution decision based on the current construction progress and the rework rate of the process.

[0010] Furthermore, the delay redundancy identification process in the delay redundancy identification unit is as follows: During the collaborative execution phase of the entire construction process, the project completion time is predicted based on the current execution status of each construction process. Any construction process that is delayed is marked as a delayed process, and any construction process that is not currently delayed is marked as a process without delay. Obtain the duration of project delay caused by the delayed process and the duration of project reduction caused by the non-delayed process. Compare the duration of project delay and the duration of project reduction. If there is no delay in the entire process, mark the corresponding duration of project delay as the delay redundancy at the current time.

[0011] Furthermore, the fluctuation trend of the proportion of delayed processes during the construction phase is obtained, and the trend of the reduction of delay redundancy at each time point is extracted. If the proportion of delayed processes during the construction phase shows an increasing trend, and the continuous time delay redundancy decreases, a delay risk signal is generated; if the proportion of delayed processes during the construction phase shows an increasing trend, and the continuous time delay redundancy decreases, a redundancy control signal is generated; if the proportion of delayed processes during the construction phase does not show an increasing trend, and the continuous time delay redundancy decreases, a redundancy reduction signal is generated; if the proportion of delayed processes during the construction phase does not show an increasing trend, and the continuous time delay redundancy decreases, a schedule safety signal is generated and uploaded to the system.

[0012] Furthermore, the implicit hysteresis detection process in the full-process implicit hysteresis detection unit is as follows: Extract the construction process that requires rework during the execution phase, and identify the rework time and the marked delay time of the construction process. If the times overlap, mark the corresponding construction time as the rework delay time; otherwise, mark the corresponding construction time as the execution delay time. The rework delay period is obtained based on the rework delay time; the execution delay period is obtained based on the execution delay time.

[0013] Furthermore, the minimum value of the shortest interval between adjacent reworks during the rising phase of rework frequency within the rework delay period is collected, and the peak value of rework frequency corresponding to the same construction process within the execution delay period is also collected. If the minimum shortest interval between adjacent reworks does not exceed the set time trough during the rework delay period when the rework frequency increases, or if the peak rework frequency for the same construction process during the delay period exceeds the frequency peak threshold, a hidden lag risk signal will be generated and uploaded to the system. If the minimum shortest interval between adjacent reworks exceeds the set time trough during the rework delay period when the rework frequency increases, and the peak rework frequency for the same construction process during the delay period does not exceed the frequency peak threshold, then a signal without hidden lag is generated and uploaded to the system.

[0014] This invention also proposes a BIM-based closed-loop collaborative management and control method for the entire construction process, with the following specific steps: Step 1: Conduct cross-loop detection of the entire construction process. Based on the cross-loop detection, predict the dynamic conflicts caused by new process overlaps, work space occupation, and schedule adjustments during the current process coordination, and use this to carry out coordinated control. Step 2: After completing the coordinated control, identify delay redundancy throughout the entire construction process; Step 3: After the delay redundancy identification is passed, perform implicit lag detection on the entire construction process.

[0015] Compared with the prior art, the beneficial effects of the present invention are: By comparing and determining the occupancy area threshold and the delay threshold, the system accurately classifies the construction stages into those with and without spatial overlap, and the construction conditions into those with and without exceeding the time limit for delay. Differentiated construction control strategies are generated for these four different construction conditions. This allows for mandatory control measures such as spatial scheduling, time-shifting, and single-priority execution for conditions with severe spatial overlap and excessive delays, avoiding construction conflicts and delays. It also allows for the preservation of the original construction process for cross-operations that have no impact, avoiding excessive control that could reduce construction efficiency. Furthermore, it allows for the development of exclusive execution plans for conditions with no spatial overlap but with delays, and for conditions with no overlap and no delays, achieving refined, adaptive, and collaborative control of construction procedures.

[0016] By dynamically monitoring the fluctuation trend of the proportion of delayed processes and the change trend of delay redundancy, four different schedule control conditions are accurately divided. For high-risk delay conditions, timely intervention and control are triggered to rectify delayed processes in advance and prevent local delays from spreading to overall schedule delays. For redundancy fluctuation conditions, continuous monitoring is carried out to dynamically control the construction status. For benign redundancy reduction conditions, the construction time of delay-free processes is optimized to further improve construction efficiency. For safe conditions, the schedule is ensured to be stable and unnecessary control interventions are reduced. This means achieving graded and classified management of construction period risks, which can not only accurately predict the risk of construction delays and reduce the negative impact of process redundancy on construction, but also make full use of construction period redundancy to optimize construction efficiency, ensure the stability of the coordinated advancement of the entire construction process, and achieve the dual management goals of pre-emptive prevention and control of construction period risks and dynamic optimization of construction efficiency.

[0017] Based on a dual-dimensional quantitative assessment of the shortest rework interval and peak rework frequency, hidden delay risks in the construction process can be accurately identified. Risk prediction can be completed in the early stages of potential rework hazards, before they affect the construction period, thus avoiding the concentrated outbreak of hidden risks in the later stages of construction. For construction conditions with hidden delay risks, real-time full-process rework synchronous monitoring is initiated to dynamically control the construction quality and progress of each process, promptly rectify high-frequency rework and short-interval rework issues, and confirm the stable construction status for risk-free conditions, reducing ineffective monitoring and control. Attached Figure Description

[0018] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0019] Fig. 1 This is a system principle block diagram of the present invention; Fig. 2This is a flowchart of the method for the cross-loop detection unit in the construction process of the present invention. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] Please see Figs. 1-2 As shown, the BIM-based building construction full-process information closed-loop collaborative management and control system is equipped with a construction process cross-loop detection unit, a delay redundancy identification unit, and a full-process implicit lag detection unit. The system generates a construction process cross-loop detection signal and sends it to the construction process cross-loop detection unit; After receiving the construction process cross-loop detection signal, the construction process cross-loop detection unit performs cross-loop detection on the entire construction process. Based on the cross-loop detection, it predicts the dynamic conflicts caused by the newly added process overlap, work space occupation, and schedule adjustment when the current process is executed in a coordinated manner, and uses this to carry out coordinated control. The execution sequence of the entire construction process is obtained by acquiring the BIM 3D construction model and arranging them according to the execution sequence. The types of adjacent processes are determined, and the area occupied by adjacent processes in the building construction stage is obtained. The occupied area is represented as the area occupied by the construction area of ​​adjacent processes. Based on the stage at which the space occupancy area is generated, the corresponding construction process overlaps and the resulting construction delay is extracted; Compare the space occupied by adjacent work processes during the construction phase with the time delay caused by overlapping construction processes, and compare them with the space occupied threshold and the delay threshold, respectively: If the area occupied by adjacent process operations during the construction phase exceeds the area threshold, it is inferred that there is spatial overlap in the current construction phase, and it is marked as a spatial overlap construction phase; if the area occupied by adjacent process operations during the construction phase does not exceed the area threshold, it is inferred that there is no spatial overlap in the current construction phase, and it is marked as a spatial non-overlap construction phase. During the spatial overlay construction phase, if the delay in the construction period due to the cross-execution of corresponding construction processes exceeds the delay threshold, it is inferred that the cross-execution of building processes affects the entire construction period. A single execution instruction is generated and uploaded to the system. After receiving the instruction, the system performs spatial overlay scheduling of the current building construction process and staggers the time nodes of the cross-execution. If necessary, single execution is given priority. If the delay in the construction period due to the overlapping of the corresponding construction processes does not exceed the delay threshold during the spatial overlay construction phase, it can be inferred that the overlapping of the construction processes has no impact and no changes are made to the process execution. During the construction phase without overlapping spaces, if the delay in the construction period due to the cross-execution of the corresponding construction processes exceeds the delay threshold, a non-cross-execution instruction will be generated and uploaded to the system. After receiving the instruction, the system will execute each process of the current building construction individually without cross-execution. During the construction phase without overlapping spaces, if the delay in the corresponding construction process does not exceed the delay threshold, an adaptive cross-execution instruction is generated and uploaded to the system. After receiving the instruction, the system makes a cross-execution decision based on the current construction progress and the rework rate of the process. The system generates a delay redundancy identification signal and sends it to the delay redundancy identification unit; After receiving the delay redundancy identification signal, the delay redundancy identification unit performs delay redundancy identification on the entire construction process to ensure that the construction process can be executed in a coordinated manner and reduce the impact of redundancy caused by a single process. During the collaborative execution phase of the entire construction process, the project completion time is predicted based on the current execution status of each construction process. Any construction process that is delayed is marked as a delayed process, and any construction process that is not currently delayed is marked as a process without delay. Obtain the duration of project delay caused by the delayed process and the duration of project reduction caused by the non-delayed process. Compare the duration of project delay and the duration of project reduction. If there is no delay in the entire process, mark the corresponding duration of project delay as the delay redundancy at the current time. Obtain the fluctuation trend of the proportion of delayed processes during the construction phase, and extract the trend of delay redundancy reduction at each time point; If the proportion of delayed processes during the construction phase shows an increasing trend, and the continuous time delay redundancy shows a decreasing trend, then a delay risk signal is generated and uploaded to the system. After receiving the signal, the system will intervene and control the delayed processes in the construction. If the proportion of delayed processes during the construction phase shows an increasing trend, and the continuous time delay redundancy does not show a decreasing trend, then a redundancy control signal is generated and uploaded to the system. After receiving the signal, the system continuously monitors the construction. If the proportion of delayed processes during the construction phase does not show an increasing trend, and the continuous time delay redundancy decreases, a redundancy decrease signal is generated and uploaded to the system. After receiving the signal, the system controls the time consumption of high-frequency, delay-free processes during the construction phase to improve execution speed. If the proportion of delayed processes during the construction phase does not show an increasing trend, and the trend of decreasing redundancy of delays at consecutive moments does not show a decreasing trend, then a schedule safety signal will be generated and uploaded to the system. The system generates a full-process implicit hysteresis detection signal and sends it to the full-process implicit hysteresis detection unit; After receiving the full-process hidden lag detection signal, the full-process hidden lag detection unit performs hidden lag detection on the entire construction process to avoid hidden lags that could lead to rework and delays when the construction period is approaching. Extract the construction process that requires rework during the execution phase, and identify the rework time of the construction process and the time of the marked delay process. If the times overlap, mark the corresponding construction time as the rework delay time; otherwise, mark the corresponding construction time as the execution delay time. The rework delay period is obtained based on the rework delay time; the execution delay period is obtained based on the execution delay time. The minimum shortest interval between adjacent reworks is collected during the rising phase of rework frequency within the rework delay period, and the peak rework frequency corresponding to the same construction process is collected during the execution delay period. If the minimum shortest interval between adjacent reworks does not exceed the set time trough during the rework delay period, or if the peak rework frequency for the same construction process exceeds the frequency peak threshold during the execution delay period, it is inferred that there is a hidden lag risk in the entire construction process. A hidden lag risk signal is generated and uploaded to the system. After receiving the signal, the system will simultaneously monitor rework during the execution phase of the construction process. If the minimum shortest interval between adjacent reworks exceeds the set valley value during the rework delay period when the rework frequency increases, and the peak rework frequency for the same construction process during the delay period does not exceed the peak frequency threshold, then it is inferred that there is no hidden lag risk in the entire construction process, and a no-hidden-lag signal is generated and uploaded to the system.

[0023] In summary, this system enables fully dynamic closed-loop detection and collaborative control of overlapping construction processes, space occupation, and schedule conflicts. It completely solves the shortcomings of traditional static management and control that cannot adapt to dynamic construction scenarios. Furthermore, it relies on BIM 3D models to accurately sort out the execution sequence of the entire construction process and the relationship between adjacent processes. It can accurately identify dynamic collaborative conflicts caused by newly added overlapping processes, overlapping work space occupation, and schedule adjustments during the construction process in real time, so as to achieve the early prediction of conflict issues rather than the post-event rectification. Breaking through the limitations of traditional single-process schedule management, it achieves integrated, dynamic, and intelligent identification and management of schedule delays and redundancies throughout the entire construction process. By simultaneously collecting the schedule delay duration of delayed processes and the schedule reduction duration of non-delayed processes, it accurately calculates the actual delays and redundancies throughout the entire construction process, avoiding the problem of misjudgment of schedule risks caused by single-process judgment, and making schedule management more in line with the overall construction conditions.

[0024] This invention also proposes a BIM-based closed-loop collaborative management and control method for the entire construction process, with the following specific steps: Step 1: Conduct cross-loop detection of the entire construction process. Based on the cross-loop detection, predict the dynamic conflicts caused by new process overlaps, work space occupation, and schedule adjustments when the current process is executed collaboratively, and use this to carry out collaborative control. Step 2: After completing the coordinated control, identify delay redundancy throughout the entire construction process; Step 3: After the delay redundancy identification is passed, perform implicit lag detection on the entire construction process.

[0025] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A BIM-based closed-loop collaborative management and control system for the entire construction process, characterized in that: The system is configured with: The construction process cross-loop detection unit performs cross-loop detection on the entire construction process. Based on the cross-loop detection, it predicts dynamic conflicts caused by new process overlaps, work space occupation, and schedule adjustments when the current process is executed collaboratively, and uses this to carry out collaborative control. The delay redundancy identification unit performs delay redundancy identification on the entire construction process after completing coordinated control. The full-process implicit lag detection unit performs implicit lag detection on the entire construction process after the delay redundancy identification is passed.

2. The BIM-based closed-loop collaborative management and control system for the entire construction process as described in claim 1, characterized in that, The process of cross-loop detection in the construction process cross-loop detection unit is as follows: The execution sequence of the entire construction process is obtained by acquiring the BIM 3D construction model and arranging them according to the execution sequence. The types of adjacent processes are determined, the space occupied by adjacent processes in the building construction stage is obtained, and the construction period delay due to the cross-execution of corresponding construction processes is extracted based on the space occupied stage.

3. The BIM-based closed-loop collaborative management and control system for the entire construction process as described in claim 2, characterized in that, If the area occupied by adjacent process operations during the construction phase exceeds the area occupancy threshold, it is marked as a construction phase with overlapping spaces; if the area occupied by adjacent process operations during the construction phase does not exceed the area occupancy threshold, it is inferred that there is no overlap in the current construction phase, and it is marked as a construction phase without overlap in spaces.

4. The BIM-based closed-loop collaborative management and control system for the entire construction process as described in claim 3, characterized in that, During the spatial overlay construction phase, if the delay in the construction period due to the cross-execution of corresponding construction processes exceeds the delay threshold, a single execution instruction will be generated and uploaded to the system. After receiving the instruction, the system will perform spatial overlay scheduling of the current building construction process and stagger the time nodes of the cross-execution. If the delay in the construction period due to the overlapping of the corresponding construction processes does not exceed the delay threshold during the spatial overlay construction phase, it can be inferred that the overlapping of the construction processes has no impact and no changes are made to the process execution. During the construction phase without overlapping spaces, if the delay in the construction period due to the cross-execution of the corresponding construction processes exceeds the delay threshold, a non-cross-execution instruction will be generated and uploaded to the system. After receiving the instruction, the system will execute each process of the current building construction individually without cross-execution. In the construction phase without spatial overlap, if the delay in the corresponding construction process does not exceed the delay threshold, a cross-adaptive execution instruction is generated and uploaded to the system. After receiving the instruction, the system makes a cross-execution decision based on the construction progress and the rework rate of the process.

5. The BIM-based closed-loop collaborative management and control system for the entire construction process as described in claim 1, characterized in that, The delay redundancy identification process in the delay redundancy identification unit is as follows: During the collaborative execution phase of the entire construction process, the project completion time is predicted based on the current execution status of each construction process. Any construction process that is delayed is marked as a delayed process, and any construction process that is not currently delayed is marked as a process without delay. Obtain the duration of project delay caused by the delayed process and the duration of project reduction caused by the non-delayed process. Compare the duration of project delay and the duration of project reduction. If there is no delay in the entire process, mark the corresponding duration of project delay as the delay redundancy at the current time.

6. The BIM-based closed-loop collaborative management and control system for the entire construction process as described in claim 5, characterized in that, Obtain the fluctuation trend of the proportion of delayed processes during the construction phase, and extract the trend of delay redundancy reduction at each time point; If the proportion of delayed processes during the construction phase shows an increasing trend, and the continuous time delay redundancy shows a decreasing trend, then a delay risk signal is generated. If the proportion of delayed processes during the construction phase shows an increasing trend, and the trend of decreasing redundancy in continuous time delays does not show a decreasing trend, then a redundancy control signal is generated. If the proportion of delayed processes during the construction phase does not show an increasing trend, and the trend of decreasing redundancy at consecutive times shows a decreasing trend, then a redundancy decrease signal is generated. If the proportion of delayed processes during the construction phase does not show an increasing trend, and the trend of decreasing redundancy of delays at consecutive moments does not show a decreasing trend, then a schedule safety signal will be generated and uploaded to the system.

7. The BIM-based closed-loop collaborative management and control system for the entire construction process as described in claim 1, characterized in that, The implicit hysteresis detection process in the full-process implicit hysteresis detection unit is as follows: Extract the construction process that requires rework during the execution phase, and identify the rework time of the construction process and the time of the marked delay process. If the times overlap, mark the corresponding construction time as the rework delay time; if they do not overlap, mark the corresponding construction time as the execution delay time. The rework delay period is obtained based on the rework delay time, and the execution delay period is obtained based on the execution delay time.

8. The BIM-based closed-loop collaborative management and control system for the entire construction process as described in claim 7, characterized in that, The minimum shortest interval between adjacent reworks is collected during the rising phase of rework frequency within the rework delay period, and the peak rework frequency corresponding to the same construction process is collected during the execution delay period. If the minimum shortest interval between adjacent reworks does not exceed the set time trough during the rework delay period when the rework frequency increases, or if the peak rework frequency for the same construction process during the delay period exceeds the frequency peak threshold, a hidden lag risk signal will be generated and uploaded to the system. If the minimum shortest interval between adjacent reworks exceeds the set valley value during the rework delay period when the rework frequency increases, and the peak rework frequency for the same construction process during the delay period does not exceed the peak frequency threshold, a signal without hidden lag is generated and uploaded to the system.

9. A BIM-based closed-loop collaborative management and control method for the entire construction process, characterized in that: The BIM-based closed-loop collaborative management and control system for the entire construction process is adopted as described in any one of claims 1-8.

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