CN111310256A - BIM-based electromechanical system upstream and downstream relationship determination method - Google Patents

Abstract

The invention discloses a BIM-based electromechanical system upstream and downstream relation determination method which is good in information circulation and small in management difficulty. The determination method comprises the following steps: (10) constructing a BIM model in an operation and maintenance stage: comparing elements in the BIM model in the construction stage with completion drawings and construction sites one by one to form a BIM model in the operation and maintenance stage; (20) the electromechanical system carding number: numbering electromechanical pipelines and equipment according to a system; (30) BIM model element encoding: constructing different electromechanical elements and coding; (40) and (3) model lightweight: realizing model lightweight through the constructed reduction surface and format conversion; (50) integrally die assembling: establishing a model system tree, and integrally assembling the building pipelines according to the system type; (60) static data combination: combining the static information required by the operation and maintenance stage into the BIM construction; (70) dynamic data combination: and binding the real-time state measuring points into the construction.

Description

BIM-based electromechanical system upstream and downstream relationship determination method

Technical Field

The invention relates to the field of operation and maintenance management of constructional engineering, in particular to a BIM-based electromechanical system upstream and downstream relation coding method.

Background

The BIM (Building Information Model) is a three-dimensional Building Model established on the basis of various relevant Information data of a construction project, and simulates real Information of a Building through digital Information. In recent years, the building industry gradually introduces the BIM technology, and the research on design, construction, development and application of the building is gradually deepened, so that the future development of the building industry is shown, and the application of the BIM in the design and construction is more and more extensive.

With the fineness of the BIM model, the data volume of the BIM model is huge, and the requirement on hardware is high. Most computers cannot carry out mold closing processing on building BIM models, so that the application of BIM information models is limited, and the BIM information models are more applied to single-layer pipeline checking of buildings no matter in a design stage or a construction stage.

The building engineering electromechanical system comprises operation systems of construction equipment which are formed by connecting pipelines and equipment and are specialized. Such as ventilation, water supply and drainage, power supply and distribution systems, etc.

However, the building machine is operated based on the system, if the building is cut according to the floor, a complete building system cannot be realized, and the model cannot be used for the later operation and maintenance management, so that the operation state of each system can be monitored. In the traditional mode, a manager wants to review certain equipment or train a project system, and more importantly, the manager browses heavy paper-based CAD drawings. If the model is required to pass through, the BIM information model needs to be opened layer by layer and compared and searched in a mode of combining a CAD system diagram, time and labor are wasted, and therefore the use value of the model is often finished after the construction is finished.

The value of the BIM informatization model lies in the information continuity. And (3) carrying the basic model in the design stage with basic pipeline, equipment and technical parameter information to the construction stage, adding information of each manufacturer of the equipment after the equipment enters the field, changing the field and the like, and finally realizing the later operation and maintenance of the project. If the model has no system logic, it is stored in single-layer fracture mode, and it will not play the role of system monitoring. And the manager cannot find a proper value point and applies the BIM after the project construction is delivered.

In summary, the prior art has the following problems: the upstream and downstream logic of the electromechanical system cannot be informationized. In the construction stage, managers repeatedly work and the implementation efficiency is low; in the operation and maintenance stage, management personnel want to know about the electromechanical system, and the difficulty is high and the technical barrier is high. And the real-time state of each electromechanical device cannot form association with the system, the information circulation is poor, linkage management cannot be carried out, and the management difficulty is high.

Disclosure of Invention

The invention aims to provide a BIM-based electromechanical system upstream and downstream relation determination method, which is used for longitudinally integrating building models, quickly, accurately and completely realizing the monitoring of the operation state of an electromechanical system, and has the advantages of good information circulation and low management difficulty.

The technical scheme for realizing the aim of the invention is as follows:

a BIM-based electromechanical system upstream and downstream relation determination method comprises the following steps:

(10) constructing a BIM model in an operation and maintenance stage: comparing, adding and modifying elements in the BIM model in the construction stage with completion drawings and construction sites one by one to ensure that an electromechanical system in the BIM model is complete and consistent with the sites to form a BIM model in the operation and maintenance stage;

(20) the electromechanical system carding number: numbering the electromechanical pipelines and the equipment according to the system attribute;

(30) BIM model element encoding: constructing different electromechanical elements in a BIM (building information modeling) model in an operation and maintenance stage, and coding;

(40) and (3) model lightweight: extracting BIM model construction and related information data in an operation and maintenance stage, and realizing model lightweight through constructed reduction and format conversion;

(50) integrally die assembling: establishing a model system tree, modifying the tail end branch pipe and the point position, and integrally assembling the building pipeline according to the system type;

(60) static data combination: combining the static information required by the operation and maintenance stage into the BIM construction;

(70) dynamic data combination: and binding the equipment and the valve real-time state measuring point to the construction corresponding to the BIM in the operation and maintenance stage.

Compared with the prior art, the invention has the following remarkable advantages:

1. the searching and positioning efficiency and accuracy are improved:

and the upstream and downstream logic systems of each system are visually checked through the model system tree. In daily management, when a certain device fails and gives an alarm, the influence range of the device can be visually checked through the downstream of the system tree, the problem reason can be found through the upstream, and real-time parameters of the device can be checked through clicking the device. In the system tree module, the position and the state of the upstream control valve can be quickly known, and the operation can be carried out in time, so that the loss caused by faults of equipment or valves and the like is reduced.

If the pipeline leaks, the influence range of the tail end of the water pipe can be known in the model system tree at the first time, whether the terminal user and the range of the terminal user are influenced or not is judged in time, the user is informed and dredged in advance, and the guiding indication is added on site. Meanwhile, an upstream control valve can be found immediately, and the upstream control valve is remotely closed, so that the loss caused by water leakage is prevented from being enlarged. After the pipeline is repaired, the valve can be opened by one key remotely, and whether the downstream of the pipeline is in normal operation or not can be checked through the system tree.

2. Break information isolated island, improve information circulation:

the technology realizes the combination of models, systems and equipment monitoring. Not only the pipeline and the equipment form a logic relation, but also the step-by-step control logic between the equipment and the valve and between the valve and the valve is realized. The equipment is used as a management unit, linkage among all systems of the equipment can be realized, and if the tail end of the air conditioner equipment has a problem, the system tree can be used for visually checking whether the air conditioner has a fault or an upstream strong electric system is powered off or a weak electric signal is disconnected.

The manager does not need to inquire by each department or go to the site for checking. Only the system tree needs to be clicked and randomly constructed, and the constructed attribute information, technical parameters, real-time dynamic information, system logic and states thereof can be presented. And the manager can complete daily management work on the same platform. 3. The threshold of the professional is reduced, and the management accuracy is improved:

the traditional cad system diagram has high requirements on the professional performance of managers and has a certain threshold for reading. And when the alignment is carried out, the error and leakage are easily formed. A BIM system tree is formed by establishing BIM electromechanical upstream and downstream logics, and the system logics and architectures of different systems are intuitively reflected through a three-dimensional visual model, so that the drawing reading difficulty is reduced. And the switching between a longitudinal system and a transverse space can be realized, any equipment is clicked in the BIM model system tree, the view of the floor where the equipment is located can be skipped, the transverse arrangement of the equipment can be checked, and the system reproduction management can be comprehensively realized.

4. Efficiency and effect of staff training are improved

Traditional staff electromechanical system training needs to pass through thick and heavy paper blueprints, operation manuals and the like. Staff training is performed through the BIM system tree without checking completion drawing data, 3D (three-dimensional) rendering is performed by utilizing model visualization, and project system architecture is known visually.

The invention is further described below with reference to the accompanying drawings and embodiments.

Drawings

Fig. 1 is a main flow chart of a BIM-based electromechanical system upstream and downstream relationship determination method according to the present invention.

FIG. 2 is a flow chart of the electromechanical system carding numbering step of FIG. 1.

Fig. 3 is a flowchart of the mold lightening step in fig. 1.

Detailed Description

As shown in fig. 1, the method for determining the upstream and downstream relationship of the BIM-based electromechanical system of the present invention includes the following steps:

(10) constructing a BIM model in an operation and maintenance stage: comparing, adding and modifying elements in the BIM model in the construction stage with completion drawings and construction sites one by one to ensure that an electromechanical system in the BIM model is complete and consistent with the sites to form a BIM model in the operation and maintenance stage;

(20) the electromechanical system carding number: numbering the electromechanical pipelines and the equipment according to the system attribute; the step can connect related equipment, valves, branch pipes and tail ends in series in sequence in the pipeline, so that the system can be traced from the top and inquired from the bottom.

The electromechanical system carding numbering step (20) comprises:

(21) water system numbering: numbering the water system according to a main pipe, a secondary pipe, a valve and equipment respectively;

the (21) water system numbering step comprises:

(211) numbering the main pipelines according to the system, the category, the type and the pipeline number;

such as: air-conditioning water system 02+ pipeline 01+ chilled water 01+ pipeline number 0001 ═ 0201010001

(212) Numbering the secondary pipelines by the serial number added to the serial number of the main pipeline;

such as: coding of branch pipes of the air-conditioning water freezing water supply pipe: 0201010001+01

(213) Numbering the valves according to the system, the type, the floor and the serial number of the valves;

such as: air-conditioning water system 02+ valve 02+ check valve 01+ floor 001+ serial number 001 ═ 020201001001

(214) And numbering the equipment according to the system, the category, the equipment type, the floor and the serial number.

Such as: air-conditioning water system 02+ equipment 03+ fan coil 01+ floor 001+ serial number 001 ═ 020301001001

(22) Numbering of the electrical system: the electric system is numbered according to the equipment, the distribution box, the loop, the low-voltage cabinet and the transformer.

The (22) electrical system numbering step comprises:

(221) numbering the equipment according to the equipment number, the loop and the power distribution cabinet number;

(222) numbering the distribution boxes according to the system, the category, the type serial numbers and the floors;

such as: strong electric system 03+ equipment 03+ first-level distribution box 03+ floor 001+ fire partition 01 ═ 03030300101

(223) Numbering the loops according to the distribution boxes and the serial numbers;

such as: distribution box 03030300101+ number 001 ═ 03030300101001

(224) Numbering the low-voltage cabinets according to the system, the category, the type and the serial number;

such as: strong electric system 03+ equipment 03+ low-voltage wire cabinet 02+ serial number 001 ═ 030302001

(225) And numbering the transformers according to the system, the category, the type and the serial number.

Such as: heavy electric system 03+ equipment 03+ transformer 01+ serial number 001 ═ 030301001

(30) BIM model element encoding: constructing different electromechanical elements in a BIM (building information modeling) model in an operation and maintenance stage, and coding;

in the step of (30) BIM model element encoding, the water system pipeline encoding content comprises a self number, a superior number, a subordinate number and a main pipeline number; the water system equipment coding content is a self number; the coding content of the electric system is a self number, an upper-level number and a lower-level number.

This step associates all numbers with each other to form a vein.

Water specialties are as follows:

standard coding
		Upstream coding
Downstream encoding
		Main pipe

Such as: if the currently selected fan coil is No. 001, the table content is

Standard coding	020301001001
		Upstream coding	020201001001
Downstream encoding	020201001002
		Main pipe	0201010001

The electric specialties are as follows:

standard coding
		Upstream coding
Downstream encoding

If the low-voltage cabinet is selected currently, the table contents are as follows:

standard coding	030302001
		Upstream coding	030301001
Downstream encoding	03030300101

(40) And (3) model lightweight: extracting BIM model construction and related information data in an operation and maintenance stage through a third-party plug-in, and realizing model lightweight through constructed reduction and format conversion;

the (40) model lightweight step includes:

(41) extracting model information data: reading the vertex of the model, the drawing sequence and the normal information;

and extracting model information data, namely reading the vertex of the model, drawing sequence and normal information through a Revit secondary development API.

(42) Format conversion: subtracting the number of the surfaces of the model, and then generating a custom file format from the vertex data and the normal data;

(43) the model is light: and generating a model with a format of fbx for 3D display by the dst document data, and realizing the lightweight model.

(50) Integrally die assembling: building a model system tree in third-party software by using the lightweight model, modifying the tail end branch pipe and the point location, and integrally assembling the building pipeline according to the system type;

(60) static data combination: combining the static information required by the operation and maintenance stage into the BIM construction;

(70) dynamic data combination: and binding the equipment and the valve real-time state measuring point to the construction corresponding to the BIM in the operation and maintenance stage.

Claims (6)

1. A BIM-based electromechanical system upstream and downstream relation determination method is characterized by comprising the following steps:

(10) constructing a BIM model in an operation and maintenance stage: comparing, adding and modifying elements in the BIM model in the construction stage with completion drawings and construction sites one by one to ensure that an electromechanical system in the BIM model is complete and consistent with the sites to form a BIM model in the operation and maintenance stage;

(20) the electromechanical system carding number: numbering the electromechanical pipelines and the equipment according to the system attribute;

(30) BIM model element encoding: constructing different electromechanical elements in a BIM (building information modeling) model in an operation and maintenance stage, and coding;

(40) and (3) model lightweight: extracting BIM model construction and related information data in an operation and maintenance stage, and realizing model lightweight through constructed reduction and format conversion;

(50) integrally die assembling: establishing a model system tree, modifying the tail end branch pipe and the point position, and integrally assembling the building pipeline according to the system type;

(60) static data combination: combining the static information required by the operation and maintenance stage into the BIM construction;

(70) dynamic data combination: and binding the equipment and the valve real-time state measuring point to the construction corresponding to the BIM in the operation and maintenance stage.

2. The electromechanical systems upstream and downstream relationship determination method of claim 1, wherein said (20) electromechanical systems combing number step comprises:

(21) water system numbering: numbering the water system according to a main pipe, a secondary pipe, a valve and equipment respectively;

(22) numbering of the electrical system: the electric system is numbered according to the equipment, the distribution box, the loop, the low-voltage cabinet and the transformer.

3. The electromechanical systems upstream and downstream relationship determination method of claim 2, wherein the (21) water system numbering step comprises:

(211) numbering the main pipelines according to the system, the category, the type and the pipeline number;

(212) numbering the secondary pipelines by the serial number added to the serial number of the main pipeline;

(213) numbering the valves according to the system, the type, the floor and the serial number of the valves;

(214) and numbering the equipment according to the system, the category, the equipment type, the floor and the serial number.

4. The electromechanical systems upstream and downstream relationship determination method of claim 2, wherein said (22) electrical systems numbering step comprises:

(221) numbering the equipment according to the equipment number, the loop and the power distribution cabinet number;

(222) numbering the distribution boxes according to the system, the category, the type serial numbers and the floors;

(223) numbering the loops according to the distribution boxes and the serial numbers;

(224) numbering the low-voltage cabinets according to the system, the category, the type and the serial number;

(225) and numbering the transformers according to the system, the category, the type and the serial number.

5. The electromechanical systems upstream and downstream relationship determination method according to claim 1, characterized in that:

in the step of (30) BIM model element encoding, the water system pipeline encoding content comprises a self number, a superior number, a subordinate number and a main pipeline number; the water system equipment coding content is a self number; the coding content of the electric system is a self number, an upper-level number and a lower-level number.

6. The electromechanical systems upstream and downstream relationship determination method of claim 1, wherein the (40) model lightweight step comprises:

(41) extracting model information data: reading the vertex of the model, the drawing sequence and the normal information;

(42) format conversion: subtracting the number of the surfaces of the model, and then generating a custom file format from the vertex data and the normal data;

(43) the model is light: and generating a model with a format of fbx for 3D display by the dst document data, and realizing the lightweight model.

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