CN115481884A - Engineering progress information visual management method based on engineering structure tree - Google Patents

Engineering progress information visual management method based on engineering structure tree Download PDF

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CN115481884A
CN115481884A CN202211108108.3A CN202211108108A CN115481884A CN 115481884 A CN115481884 A CN 115481884A CN 202211108108 A CN202211108108 A CN 202211108108A CN 115481884 A CN115481884 A CN 115481884A
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progress
subunit
bim
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毕涛
李成洋
刘奥
雷崇
殷勤
邱绍峰
周明翔
李加祺
杨辉
李经伟
刘高坤
熊盛
田向阳
孙思远
韩天虎
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China Railway Siyuan Survey and Design Group Co Ltd
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Abstract

The invention relates to the technical field of building construction informatization management, in particular to an engineering progress information visualization management method based on an engineering structure tree, which comprises the following steps: decomposing a construction project into a plurality of subunit projects based on the engineering structure tree, and acquiring the planned construction progress of each subunit project; splitting to obtain a plurality of BIM submodels; acquiring the actual construction progress of each subunit project, and establishing a mapping relation between the BIM sub-model and the construction subunit project and the actual construction progress; and calculating the difference between the actual construction progress and the planned construction progress, identifying the construction condition of the construction state of the corresponding subunit through the label, and sending alarm information to the delay state. The BIM submodels of different sub-projects are generated through decomposition of the engineering structure tree, and the sub-projects in the project are respectively supervised; the progress of each sub-project is visually embodied in the BIM model, so that management personnel can quickly know the progress condition of the project and timely react to the abnormal condition of the project.

Description

Engineering progress information visual management method based on engineering structure tree
Technical Field
The invention relates to the technical field of building construction informatization management, in particular to an engineering progress information visualization management method based on an engineering structure tree.
Background
The construction progress is undoubtedly the most important ring for the economic efficiency of construction enterprises. The construction progress covers a series of construction links from early design and later completion of construction and middle, including engineering project design, construction material purchasing and the like. However, many construction enterprises in China have low management level and old management mode for a long time, so that the management level and the economic benefit of the enterprises cannot be improved, the engineering project is delayed, and unnecessary economic loss is caused.
At present, the construction progress mostly depends on manual supervision and management, progress instructions issued by managers generally carry out progress management in a hierarchical mode, the traditional progress information transmission mode can only carry out point-to-point acquisition of information of a single construction project, the acquisition speed of the construction progress information is low, the instantaneity is poor, the data processing efficiency is low, the processing process of the construction information is completely responsible for related personnel, and errors caused by human factors are difficult to avoid. And because the control of the project progress is not reasonable standard, the supervision department is difficult to scientifically, systematically and comprehensively supervise and control the progress. Although the building information model can visually manage the whole project and the progress of the project, the monitoring of parameters of different nodes on the project cannot be realized, and the project period cannot be effectively managed.
Disclosure of Invention
The invention provides an engineering progress information visual management method based on an engineering structure tree, which is used for solving the defects that the monitoring of parameters of different nodes on an engineering can not be realized and the project construction period can not be effectively managed in the prior art, realizing the dynamic 'association' of construction project services and models, completely recording the progress information of an engineering construction process, and completing the whole process management from planning and arranging to resource management and progress statistics.
The invention provides a visual engineering progress information management method based on an engineering structure tree, which comprises the following steps:
acquiring an engineering structure tree of a construction project, decomposing the construction project into a plurality of sub-unit projects according to an engineering prototype drawing of the engineering structure tree, and acquiring the planned construction progress of each sub-unit project;
generating a BIM model of the whole construction project, splitting the BIM model based on each subunit, and obtaining a plurality of BIM submodels;
acquiring the actual construction progress of each subunit project, and establishing a mapping relation between each BIM submodel and the corresponding construction subunit project and actual construction progress;
and calculating the difference value between the actual construction progress and the planned construction progress for each construction subunit project, identifying the construction state of the corresponding subunit in each BIM sub-model through a label, judging the construction condition to be a delay state if the time difference value between the actual construction progress and the planned construction progress is greater than a delay threshold value, and sending alarm information.
According to the engineering progress information visualization management method based on the engineering structure tree, provided by the invention, the construction state of the corresponding subunit is identified in each BIM submodel through a label, and the method specifically comprises the following steps:
and marking the construction state by different colors, wherein the construction state comprises the states of non-operation, in construction, completion and delay.
The invention provides a visual engineering progress information management method based on an engineering structure tree, which comprises the following steps:
and updating each BIM sub-model in the BIM model in real time according to the construction state.
The invention provides an engineering progress information visual management method based on an engineering structure tree, which comprises the following steps:
establishing feedback information bases aiming at different weather types according to the engineering project type and the weather type, and adjusting the planned construction progress according to the feedback information;
and acquiring a real-time weather state in real time, acquiring feedback information according to the feedback information base, and adjusting the planned construction progress of each subunit project.
The invention provides an engineering progress information visual management method based on an engineering structure tree, which comprises the following steps:
and acquiring all subunit projects with the construction states of non-operation and/or delay, calculating the difference between the real-time adjustment plan and the real-time progress, and generating a work error report.
The invention provides an engineering progress information visual management method based on an engineering structure tree, which comprises the following steps:
associating the planned construction progress and the actual construction progress of the subunit project with the BIM submodel, and dynamically displaying, monitoring, predicting and adjusting the planned construction progress and the actual construction progress according to the real-time construction progress;
registering and tracking and checking the quality problem of each subunit project, and establishing association with the corresponding BIM submodel; and registering and tracking and checking the safety problem of the project, and establishing association with the corresponding BIM submodel.
On the other hand, the invention also provides an engineering progress information visualization management system based on the engineering structure tree, which comprises the following components:
the progress planning module is used for acquiring an engineering structure tree of a construction project, decomposing the construction project into a plurality of sub-unit projects according to an engineering prototype drawing of the engineering structure tree, and acquiring the planned construction progress of each sub-unit project;
the BIM model generation module is used for generating a BIM model of the whole construction project, splitting the BIM model based on each subunit and obtaining a plurality of BIM submodels;
the progress correlation module is used for acquiring the actual construction progress of each subunit project and establishing the mapping relation between each BIM submodule and the corresponding construction subunit project and actual construction progress;
and the construction state management module is used for calculating a difference value between the actual construction progress and the planned construction progress for each construction subunit project, identifying the construction state of the corresponding subunit in each BIM sub-model through a label, judging that the construction condition is a delay state if the time difference value between the actual construction progress and the planned construction progress is greater than a delay threshold value, and sending alarm information.
The invention also provides an electronic device, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein when the processor executes the program, the steps of any one of the engineering progress information visualization management methods based on the engineering structure tree are realized.
The present invention also provides a non-transitory computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the steps of the engineering progress information visualization management method based on the engineering structure tree as described in any of the above.
Compared with the prior art, the engineering progress information visualization management method based on the engineering structure tree provided by the invention at least has the following technical effects:
(1) The project is decomposed through the engineering structure tree, and BIM sub-models of different sub-projects are generated according to the decomposition result, so that the sub-projects which are relatively independently constructed in the project are respectively and simultaneously supervised;
(2) By acquiring the actual construction progress of each subunit project in real time and establishing the mapping relation between each BIM submodel and the corresponding construction subunit project and actual construction progress, managers can construct the progress conditions of projects in different stages in real time conveniently; the construction state of the corresponding subunit is identified in each BIM submodel through the label, the sub-project in the delay state is subjected to alarm information, and therefore the progress condition of each sub-project is visually embodied in the BIM, managers can conveniently and quickly know the progress condition of the project, and the abnormal condition of the project is responded timely.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a flow chart diagram of a visual management method for project progress information based on a project structure tree according to the present invention;
FIG. 2 is a model schematic diagram of a visual management method for engineering progress information based on an engineering structure tree, provided by the invention;
fig. 3 is a system schematic diagram of a device of a visual management method for engineering progress information based on an engineering structure tree according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
The terms "including" and "having," and any variations thereof in the description and claims of this application and the above-described drawings, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or modules is not limited to the listed steps or modules but may alternatively include other steps or modules not listed or inherent to such process, method, article, or apparatus.
It should be noted that the terms "first \ second" and "first \ second" are used herein only for distinguishing similar objects and do not represent a specific ordering for the objects, and it should be understood that "first \ second" and "first \ second" may be interchanged in a specific order or sequence where permitted. It should be understood that "first \ second" distinguishing objects may be interchanged under appropriate circumstances such that the embodiments of the invention described herein may be practiced in sequences other than those described or illustrated herein.
In an embodiment, as shown in fig. 1, the method for visually managing engineering progress information based on an engineering structure tree provided by the present invention includes:
acquiring an engineering structure tree of a construction project, decomposing the construction project into a plurality of subunit projects according to an engineering prototype graph of the engineering structure tree, and acquiring the planned construction progress of each subunit project;
generating a BIM model of an integral construction project, splitting the BIM model based on each subunit, and acquiring a plurality of BIM submodels;
acquiring the actual construction progress of each subunit project, and establishing a mapping relation between each BIM sub-model and the corresponding construction subunit project and actual construction progress;
and calculating the difference value between the actual construction progress and the planned construction progress for each construction subunit project, identifying the construction state of the corresponding subunit in each BIM sub-model through a label, judging the construction condition to be a delay state if the time difference value between the actual construction progress and the planned construction progress is greater than a delay threshold value, and sending alarm information.
It should be noted that, according to the project construction progress plan, each sub-project of each entity project is decomposed and associated, and construction plan management is established; directly butting relevant procedure checking data based on the specific execution condition of site construction, and associating an engineering structure tree; the tree structure is a nonlinear data structure, which is a structure in which data elements (called nodes in the tree) are organized in a branching relationship like a natural tree; the engineering structure tree is a hierarchical tree structure used for representing the identity recognition and relationship of engineering objects, consists of engineering nodes and is the expression of the logical hierarchical relationship of the engineering objects, and the structure tree is decomposed according to different construction stages;
optionally, each project department person can input various parameters into the corresponding BIM model to indicate the progress of the related project, so that the overall construction progress is displayed through the decomposed BIM sub-model, and managers can conveniently and quickly know the progress condition of the project; the method comprises the steps that two time and space main lines complement each other based on a BIM (building information modeling) model and input various parameters, and various parameters are monitored through a power monitoring system, so that the whole process management of progress statistics is completed;
specifically, the form of the electronic sand table is formed according to the BIM submodel and the input project information, and the generated electronic sand table is shown in fig. 2; it should be noted that the electronic sand table shown in fig. 2 is only an example of the embodiment of the present invention, and is not meant to further limit the present invention;
optionally, the project service management is performed by the WEB service side based on the C/S-side electronic sand table and the WEB service side, and includes management of service information such as progress;
the client can adopt a CityMaker software to build a GIS (geographic information system) alarm platform, a BIM (building information model), a digital terrain and a GIS (geographic information system) are subjected to trimming fusion to form an integrated GIS + BIM visual three-dimensional platform, project introduction image display is carried out, and project service dynamic information is integrated into an electronic sand table by taking a WEB (world Wide Web) terminal and a mobile phone APP (application) as a service data input end and a data support platform;
in one embodiment, the construction state of the corresponding subunit is identified in each BIM submodel through a label, and the construction state can be marked by different colors, wherein the construction state comprises the states of non-operation, in-construction, completed and delayed;
as an example, gray represents that work is started, blue represents that normal construction is in progress, green represents that work is completed on time, and red represents a delay state;
optionally, by clicking the corresponding BIM sub-model, information such as a project name, a project responsible person, a project plan progress and the like corresponding to the tag is displayed;
specifically, a project responsible person can fill and report the construction progress through a mobile device segment or a business background, the system automatically correlates the actual progress conditions of the engineering part, which is under construction and which is finished, marks the construction progress conditions through different colors, and the construction progress conditions are clear at a glance in an electronic sand table;
the invention provides a visual engineering progress information management method based on an engineering structure tree, which comprises the following steps:
and updating each BIM submodel in the BIM in real time according to the construction state.
The invention provides a visual engineering progress information management method based on an engineering structure tree, which comprises the following steps:
establishing feedback information bases aiming at different weather types according to the type of the engineering project and the weather type, and adjusting the planned construction progress according to the feedback information;
acquiring a real-time weather state in real time, acquiring feedback information according to the feedback information base, and adjusting the planned construction progress of each subunit project;
as an example, extreme weather such as heavy rain and high temperature may cause negative influence on construction, which is not beneficial to ensuring safety of worker construction and processing performance of construction equipment, and is easy to cause increase of failure rate, so that influence of weather information on construction progress needs to be considered to adjust a construction plan in real time;
the invention provides a visual engineering progress information management method based on an engineering structure tree, which comprises the following steps:
and acquiring all subunit projects with the construction states of non-operation and/or delayed states, calculating a difference value between a real-time adjustment plan and a real-time progress, and generating a work error report.
The invention provides an engineering progress information visual management method based on an engineering structure tree, which comprises the following steps:
associating the planned construction progress and the actual construction progress of the subunit project with a BIM submodel, and dynamically displaying, monitoring, predicting and adjusting the planned construction progress and the actual construction progress according to the real-time construction progress;
registering and tracking and checking the quality problem of each subunit project, and establishing association with the corresponding BIM submodel; registering and tracking and checking the safety problem of the project, and establishing association with the corresponding BIM submodel;
optionally, the building of the BIM model in the electronic sand table is to associate construction process data along with the construction process, and according to the division of engineering structure parts, combine various service data such as construction drawings, technical data, quality inspection data, safety inspection and the like of a WEB service end, so as to realize that the whole construction information of the whole member can be tracked by selecting any BIM member; the trace reservation in the construction process is really realized;
as an example, the BIM model in the electronic sand table may be associated with the progress of the shield machine, and the number of the tunneling loops is extracted through shield machine monitoring data returned from the intelligent site, so as to display the actual tunneling position of the shield machine model of the electronic sand table.
On the other hand, as shown in fig. 3, the invention further provides a visual management system for engineering progress information based on the engineering structure tree, which includes:
the progress planning module is used for acquiring an engineering structure tree of a construction project, decomposing the construction project into a plurality of subunit projects according to an engineering prototype graph of the engineering structure tree and acquiring the planned construction progress of each subunit project;
the BIM model generation module is used for generating a BIM model of the whole construction project, splitting the BIM model based on each subunit and obtaining a plurality of BIM submodels;
the progress correlation module is used for acquiring the actual construction progress of each subunit project and establishing the mapping relation between each BIM submodel and the corresponding construction subunit project and actual construction progress;
and the construction state management module is used for calculating a difference value between the actual construction progress and the planned construction progress for each construction subunit project, identifying the construction state of the corresponding subunit in each BIM sub-model through a label, judging that the construction condition is a delay state if the time difference value between the actual construction progress and the planned construction progress is greater than a delay threshold value, and sending alarm information.
According to the system provided by the invention, through the visual management and control of the progress information, progress, materials and plans are developed around each unit, subsection and project division in the construction process, the dynamic association of construction project services and models is realized, the efficient circulation of information is enhanced, the timeliness and scientificity of decision making are improved, and the progress management cost is reduced;
and accessing data through the Internet, and performing centralized management and query. The construction progress information and the data processing efficiency are greatly improved, errors caused by human factors are reduced, the numerical calculation accuracy is guaranteed, the progress management and control efficiency is remarkably improved, and the data processing intensity is reduced.
In another aspect, the present invention also provides an electronic device, which may include: the system comprises a processor (processor), a communication interface (communication interface) 820, a memory (memory) and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other through the communication bus. The processor can call the logic instruction of the memory to execute the engineering progress information visualization management method based on the engineering structure tree provided by the above methods, and the method comprises the following steps:
acquiring an engineering structure tree of a construction project, decomposing the construction project into a plurality of sub-unit projects according to an engineering prototype drawing of the engineering structure tree, and acquiring the planned construction progress of each sub-unit project;
generating a BIM model of the whole construction project, splitting the BIM model based on each subunit, and obtaining a plurality of BIM submodels;
acquiring the actual construction progress of each subunit project, and establishing a mapping relation between each BIM sub-model and the corresponding construction subunit project and actual construction progress;
and calculating the difference value between the actual construction progress and the planned construction progress for each construction subunit project, identifying the construction state of the corresponding subunit in each BIM sub-model through a label, judging the construction condition to be a delay state if the time difference value between the actual construction progress and the planned construction progress is greater than a delay threshold value, and sending alarm information.
In addition, the logic instructions in the memory may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products. Based on such understanding, the technical solution of the present invention or a part thereof which substantially contributes to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, an optical disk, or other various media capable of storing program codes.
In another aspect, the present invention further provides a computer program product, which includes a computer program stored on a non-transitory computer readable storage medium, the computer program includes program instructions, and when the program instructions are executed by a computer, the computer can execute a method for visually managing engineering progress information based on an engineering structure tree, which includes:
acquiring an engineering structure tree of a construction project, decomposing the construction project into a plurality of sub-unit projects according to an engineering prototype drawing of the engineering structure tree, and acquiring the planned construction progress of each sub-unit project;
generating a BIM model of the whole construction project, splitting the BIM model based on each subunit, and obtaining a plurality of BIM submodels;
acquiring the actual construction progress of each subunit project, and establishing a mapping relation between each BIM sub-model and the corresponding construction subunit project and actual construction progress;
and calculating the difference value between the actual construction progress and the planned construction progress for each construction subunit project, identifying the construction state of the corresponding subunit in each BIM sub-model through a label, judging the construction condition to be a delay state if the time difference value between the actual construction progress and the planned construction progress is greater than a delay threshold value, and sending alarm information.
In another aspect, the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is implemented by a processor to execute the above-mentioned engineering progress information visualization management method based on an engineering structure tree, and the method includes:
acquiring an engineering structure tree of a construction project, decomposing the construction project into a plurality of subunit projects according to an engineering prototype graph of the engineering structure tree, and acquiring the planned construction progress of each subunit project;
generating a BIM model of the whole construction project, splitting the BIM model based on each subunit, and obtaining a plurality of BIM submodels;
acquiring the actual construction progress of each subunit project, and establishing a mapping relation between each BIM submodel and the corresponding construction subunit project and actual construction progress;
and calculating the difference value between the actual construction progress and the planned construction progress for each construction subunit project, identifying the construction state of the corresponding subunit in each BIM sub-model through a label, judging the construction condition to be a delay state if the time difference value between the actual construction progress and the planned construction progress is greater than a delay threshold value, and sending alarm information.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (9)

1. A visual management method of project progress information based on a project structure tree is characterized by comprising the following steps:
acquiring an engineering structure tree of a construction project, decomposing the construction project into a plurality of subunit projects according to an engineering prototype graph of the engineering structure tree, and acquiring the planned construction progress of each subunit project;
generating a BIM model of the whole construction project, splitting the BIM model based on each subunit, and obtaining a plurality of BIM submodels;
acquiring the actual construction progress of each subunit project, and establishing a mapping relation between each BIM sub-model and the corresponding construction subunit project and actual construction progress;
and calculating the difference value between the actual construction progress and the planned construction progress for each construction subunit project, identifying the construction state of the corresponding subunit in each BIM sub-model through a label, judging the construction condition to be a delay state if the time difference value between the actual construction progress and the planned construction progress is greater than a delay threshold value, and sending alarm information.
2. The visual engineering progress information management method based on the engineering structure tree as claimed in claim 1, wherein the step of identifying the construction state of the corresponding subunit in each BIM submodel through a tag comprises:
and marking the construction states by different colors, wherein the construction states comprise non-operation, in-construction, completed and delayed states.
3. The visual management method for the project progress information based on the project structure tree, according to claim 2, is characterized by comprising the following steps:
and updating each BIM sub-model in the BIM model in real time according to the construction state.
4. The visual engineering progress information management method based on the engineering structure tree as claimed in claim 2, characterized by comprising:
establishing feedback information bases aiming at different weather types according to the type of the engineering project and the weather type, and adjusting the planned construction progress according to the feedback information;
and acquiring a real-time weather state in real time, acquiring feedback information according to the feedback information base, and adjusting the planned construction progress of each subunit project.
5. The visual management method for the project progress information based on the project structure tree, according to claim 2, is characterized by comprising the following steps:
and acquiring all subunit projects with the construction states of non-operation and/or delayed states, calculating a difference value between a real-time adjustment plan and a real-time progress, and generating a work error report.
6. The visual engineering progress information management method based on the engineering structure tree as claimed in claim 1, comprising:
associating the planned construction progress and the actual construction progress of the subunit project with a BIM submodel, and dynamically displaying, monitoring, predicting and adjusting the planned construction progress and the actual construction progress according to the real-time construction progress;
registering and tracking and checking the quality problem of each subunit project, and establishing association with the corresponding BIM submodel; and registering and tracking and checking the safety problem of the project, and establishing association with the corresponding BIM submodel.
7. The utility model provides a visual management system of engineering progress information based on engineering structure tree which characterized in that includes:
the progress planning module is used for acquiring an engineering structure tree of a construction project, decomposing the construction project into a plurality of sub-unit projects according to an engineering prototype drawing of the engineering structure tree, and acquiring the planned construction progress of each sub-unit project;
the BIM model generation module is used for generating a BIM model of the whole construction project, splitting the BIM model based on each subunit and obtaining a plurality of BIM submodels;
the progress correlation module is used for acquiring the actual construction progress of each subunit project and establishing the mapping relation between each BIM submodel and the corresponding construction subunit project and actual construction progress;
and the construction state management module is used for calculating a difference value between the actual construction progress and the planned construction progress for each construction subunit project, identifying the construction state of the corresponding subunit in each BIM sub-model through a label, judging that the construction condition is a delay state if the time difference value between the actual construction progress and the planned construction progress is greater than a delay threshold value, and sending alarm information.
8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the method for visual management of project progress information based on project structure tree according to any one of claims 1 to 6 when executing the program.
9. A non-transitory computer readable storage medium, on which a computer program is stored, wherein the computer program, when being executed by a processor, implements the steps of the engineering progress information visualization management method based on an engineering structure tree according to any one of claims 1 to 6.
CN202211108108.3A 2022-09-13 2022-09-13 Engineering progress information visual management method based on engineering structure tree Pending CN115481884A (en)

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