Construction method of intelligent operation and maintenance platform of large commercial building energy system based on BIM (Building Information Modeling)

Abstract

The invention provides a BIM-based large-scale commercial building energy system intelligent operation and maintenance platform construction method, and relates to the technical field of building energy system operation and maintenance. A BIM-based large-scale commercial building energy system operation and maintenance management system is constructed, and various technologies such as big data, a cloud platform, artificial intelligence and the Internet of Things are utilized; an electromechanical equipment full-stage effective database is established, an intelligent operation and maintenance platform is created, large-scale commercial building energy system operation and maintenance and effective transmission of electromechanical equipment full-stage data are achieved, and high efficiency of the operation and maintenance process and collaborative operation and maintenance of technicians are achieved through intelligent operation and maintenance and the Internet of Things.

Description

Technical Field

[0001] The present invention relates to the field of building energy system operation and maintenance technology, and in particular to a method for constructing a smart operation and maintenance platform for a large commercial building energy system based on BIM. Background Art

[0002] When the building energy system is operating normally, the traditional building energy system operation and maintenance usually relies on manual monitoring and maintenance, lacking efficient information processing and sharing mechanisms, resulting in inefficient management. After equipment failure, the traditional building energy system usually has complex pipeline space relationships and large spatial spans, relying on the personnel's familiarity with the building energy system, which increases the difficulty of maintenance. After handling the failure, the traditional building energy system operation and maintenance lacks the tracing and analysis of equipment failures and cannot perform autonomous repairs for repeated failures.

[0003] Although many departments and enterprises in my country have established monitoring platforms for building energy, most studies have not effectively managed the energy systems of large commercial buildings, resulting in a lot of data waste, which has a certain impact on the personnel management, operation and maintenance of the energy system.

[0004] BIM technology can integrate, store, and update operation and maintenance information in a timely manner, solving the problem of large amounts of data waste; secondly, BIM technology can visualize the building energy system in three dimensions, making the operation and maintenance process more convenient and efficient; finally, BIM technology enables collaborative management and communication among all parties to be more efficient. Therefore, the present invention combines BIM technology, building energy operation and maintenance management, and a monitoring platform. The platform has the functions of data monitoring, three-dimensional visualization, and multi-source heterogeneous data fusion, allowing operation and maintenance personnel to more efficiently and conveniently manage and operate the building energy system. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a method for constructing a smart operation and maintenance platform for a large-scale commercial building energy system based on BIM; a large-scale commercial building energy system operation and maintenance management system based on BIM is constructed, and a variety of technologies such as big data, cloud platform, artificial intelligence and the Internet of Things are used to establish an effective database for all stages of electromechanical equipment, create a smart operation and maintenance platform, realize the operation and maintenance of the energy system of large-scale commercial buildings, and effectively transmit the data of all stages of electromechanical equipment. Through the use of smart operation and maintenance and the Internet of Things, the operation and maintenance process is made efficient, and various technical personnel collaborate in operation and maintenance.

[0006] The technical solution provided by the present invention is:

[0007] A method for constructing a large-scale commercial building energy system intelligent operation and maintenance platform based on BIM, comprising the following steps:

[0008] Step 1: Install sensors based on large building energy systems;

[0009] Specifically: according to the energy system operation requirements and monitoring requirements, install sensors on the energy system equipment, specifically install pressure transmitters, temperature transmitters, electromagnetic heat and cold meters, and monitor the supply and return water pressure, supply and return water temperature, flow rate, and flow rate of the equipment;

[0010] The sensor monitors the operation data of the unit, is connected to the PLC controller via the RS485 bus, and the corresponding Internet of Things protocol is configured in the PLC controller. The PLC controller controls the start and stop of the unit and the supply and return water temperature, supply and return water pressure, flow rate, and flow rate of the unit through the frequency conversion controller.

[0011] Step 2: Build a BIM electromechanical model and convert the BIM electromechanical model into a GLTF electromechanical model;

[0012] Specifically, Autodesk Revit is used to construct the BIM electromechanical model of the energy system of a large commercial building. Then, the lightweight plug-in is used to lightweight the BIM electromechanical model. The lightweight model is the GLTF electromechanical model. Finally, the GLTF electromechanical model is imported into the cloud platform, and the GLTF electromechanical model is browsed and displayed in three dimensions through the cloud platform.

[0013] The GLTF electromechanical model includes a unit equipment model and a sensor model, wherein the electromechanical equipment model enters the basic information of the equipment, including system type, equipment model, system to which it belongs, power supply area, equipment name, equipment unique code, manufacturer, maintenance manual, equipment size, equipment power, and the sensor model enters the sensor monitoring information, including sensor range, sensor accuracy, monitoring data, and sensor model.

[0014] Step 3: Create a database for all stages of the equipment;

[0015] Specifically: Use MySQL database to store the full-stage database of electromechanical equipment and determine the database usage requirements, including: design electromechanical equipment replacement record database, electromechanical equipment repair database, electromechanical equipment maintenance database, electromechanical equipment basic information database, electromechanical equipment disposal experience database;

[0016] The unique code of the electromechanical equipment corresponding to the full-stage database is consistent with the unique code of the equipment in the BIM electromechanical model;

[0017] Step 4: Deploy the cloud platform and connect sensors;

[0018] Specifically: based on the functional requirements of the building energy system, the cloud platform is developed using the technology of front-end and back-end separation, the server environment is configured, the cloud platform is uploaded to the server, the platform is configured with the corresponding Internet of Things protocol, the transmitted sensor monitoring data is loaded onto the platform, and the data is visualized on the platform;

[0019] The data visualization shows the trend of the number of equipment repairs per quarter and the number of equipment warranty repairs per quarter.

[0020] Step 5: Build a BIM-based intelligent operation and maintenance platform for energy systems in large commercial buildings;

[0021] Specifically: in accordance with national requirements and project needs, the unit equipment is given a unique code, and the GLTF electromechanical model, unit operation data, and equipment full-stage database are integrated into the platform; through the Internet of Things, power monitoring, smart devices, BIM and other four technologies, the electromechanical equipment operation and maintenance, system equipment space, and equipment operation data monitoring are connected to the cloud platform, and the building energy system is intelligently operated and maintained through the cloud platform to achieve equipment operation monitoring, daily inspections, personnel management, auxiliary maintenance, space management, and cost management.

[0022] The large-scale commercial building energy system intelligent operation and maintenance platform can query the spatial location of electromechanical equipment, highlight the basic information of the equipment, query the sensor monitoring information, and find the logical upstream and downstream of the equipment through the unique code of the equipment to assist in locating the faulty equipment.

[0023] The beneficial effects of adopting the above technical solution are:

[0024] The present invention provides a method for constructing a large-scale commercial building energy system intelligent operation and maintenance platform based on BIM, which has the following beneficial effects:

[0025] 1. Fusion of multi-source heterogeneous data and unified integration of operation and maintenance information. This project will unify three types of multi-source heterogeneous data, namely, equipment operation data monitored by sensors, basic equipment information data stored in BIM models, and equipment maintenance information data stored in databases, into the building energy system operation and maintenance platform. This project will first establish a BIM model to store basic equipment information, including equipment monitoring information and maintenance information; secondly, establish an equipment maintenance database, including an equipment repair information database, an equipment maintenance information database, a customer feedback record database, an equipment replacement record database, and an equipment disposal experience database; finally, all data will be unified in the form of a unique code.

[0026] 2. Real-time display of equipment operation data. This project uses the PLC controller to read the equipment operation data, namely the supply and return water temperature, supply and return water pressure, flow rate, flow rate and other operation data of the electromechanical equipment. On the display control terminal PC, the cloud platform will display the electromechanical equipment operation data in real time, which is convenient for operation and maintenance personnel to conduct remote energy monitoring of electromechanical equipment in large commercial building energy systems and improve operation and maintenance efficiency.

[0027] 3. All technicians collaborate on maintenance and optimize the maintenance process. This project allocates the rights of each technician through the platform. When sensors on the platform detect abnormal values, the corresponding personnel are dispatched to the site for maintenance in the form of electronic work orders. The BIM model is used to assist in the spatial location of the faulty equipment, and the faulty equipment is found more efficiently. After the maintenance, the experience of handling the fault is recorded on the platform to facilitate maintenance guidance for subsequent similar equipment failures. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a flow chart of a method for constructing a smart operation and maintenance platform for a large commercial building energy system according to an embodiment of the present invention;

[0029] Figure 2 This is an overall module function diagram of the intelligent operation and maintenance platform for energy systems of large commercial buildings according to an embodiment of the present invention;

[0030] Figure 3 This is an overall structural diagram of the intelligent operation and maintenance platform for the energy system of a large commercial building according to an embodiment of the present invention. DETAILED DESCRIPTION

[0031] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0032] A method for constructing a smart operation and maintenance platform for energy systems in large commercial buildings based on BIM. Figure 1 As shown, the following steps are included:

[0033] Step 1: Install sensors based on large building energy systems;

[0034] Specifically: according to the energy system operation requirements and monitoring requirements, install sensors on the energy system equipment, specifically install pressure transmitters, temperature transmitters, electromagnetic heat and cold meters, and monitor the supply and return water pressure, supply and return water temperature, flow rate, and flow rate of the equipment;

[0035] The sensor monitors the operation data of the unit, connects to the PLC controller through the RS485 bus, configures the corresponding Internet of Things protocol, namely the modbus tcp protocol, in the PLC controller, and controls the start and stop of the unit and the supply and return water temperature, supply and return water pressure, flow rate, and flow rate of the unit through the frequency conversion controller.

[0036] In this embodiment, the model of the pressure transmitter is XK-131, the model of the temperature transmitter is CWDZ33-01-A1-19-L100-G, the model of the electromagnetic heat and cold meter is JY-LDE-DN450, and the PLC controller is 6ES7214-1AG40-0XB0.

[0037] Step 2: Build a BIM electromechanical model and convert the BIM electromechanical model into a GLTF electromechanical model;

[0038] Specifically: First, use Autodesk Revit to build a BIM electromechanical model for the energy system of a large commercial building, and set the coordinates and reference points of the model. Then use the lightweight plug-in corresponding to Revit to lightweight the BIM electromechanical model. The lightweight model is a GLTF electromechanical model. Based on the interface on the platform, call the local GLTF format file, define the model path and attribute information, create a model shader, render the scene, camera type, and use WebGL functions to set environmental properties and material parameters. Import the GLTF electromechanical model into the cloud platform, connect the cloud platform web page with the GLTF electromechanical model, and browse and display the GLTF electromechanical model in three dimensions through the cloud platform to display the basic information of the equipment and sensor monitoring information.

[0039] The GLTF electromechanical model includes a unit equipment model and a sensor model, wherein the electromechanical equipment model enters the basic information of the equipment, including system type, equipment model, system to which it belongs, power supply area, equipment name, equipment unique code, manufacturer, maintenance manual, equipment size, equipment power, and the sensor model enters the sensor monitoring information, including sensor range, sensor accuracy, monitoring data, and sensor model.

[0040] The basic information of the device in this embodiment is shown in Table 1:

[0041] Table 1 Basic information of equipment

[0042]

[0043] The sensor detection information in this embodiment is shown in Table 2:

[0044] Table 2 Sensor monitoring information

[0045]

[0046] Step 3: Create a database for all stages of the equipment;

[0047] Specifically: Use MySQL database to store the full-stage database of electromechanical equipment, determine the database usage requirements with technical personnel, unify the unique coding of electromechanical equipment, and use a four-layer coding rule. The first layer of coding is the equipment operation area, the second layer of coding is set as the equipment system type, the third layer of coding is set as the equipment subsystem, and the fourth layer of coding is set as the equipment model. According to the design requirements of technical personnel, design an electromechanical equipment replacement record database, an electromechanical equipment repair database, an electromechanical equipment maintenance database, an electromechanical equipment basic information database, and an electromechanical equipment disposal experience database, eliminate redundant and complex data, and ensure effective data storage and retrieval query. The unique coding of electromechanical equipment corresponding to the full-stage database is consistent with the unique coding of the equipment in the BIM electromechanical model;

[0048] The construction of the equipment full-cycle database in this embodiment ensures that the unique code of the BIM electromechanical model is consistent with the unique code of the electromechanical equipment corresponding to the equipment full-cycle database, and the changed unique code of the equipment must also be replaced with it. The equipment replacement record, equipment maintenance record, equipment maintenance record, and equipment fault handling experience can be queried in the full-cycle database, which is convenient for maintenance personnel to trace the root cause of the fault later.

[0049] Step 4: Deploy the cloud platform and connect sensors;

[0050] Specifically: Based on the functional requirements of the building energy system, the functions of the cloud platform are designed. The specific module design is as follows: Figure 2 As shown. Figure 3 As shown, the B / S development architecture is adopted, the front-end and back-end separation technology is used to develop the cloud platform, and the existing building equipment and monitoring platform are used to develop the cloud platform of the building energy system, that is, the Paas cloud service type is used to develop the cloud platform of the building energy system. Configure the server environment of the cloud platform and upload the cloud platform to the server. The cloud platform configures the corresponding Internet of Things protocol, namely the modbus tcp protocol, to facilitate the transmission of operating data and control the operating status of the unit. The PLC output end is connected to the input end of the communication module. The communication module loads the transmitted operating data of the unit such as temperature, pressure, flow, flow rate, etc. onto the cloud platform, and presents the transmitted operating data in the form of charts on the cloud platform to monitor whether the operating status of the large-scale building energy system is normal. The communication module in this embodiment is CM 1241.

[0051] The data visualization displays the trend of the number of equipment maintenance and the number of equipment warranty requests each quarter, so that maintenance personnel can perform appropriate maintenance or repairs on equipment with a high failure rate.

[0052] Step 5: Build a BIM-based intelligent operation and maintenance platform for energy systems in large commercial buildings;

[0053] Specifically: according to national requirements and project needs, the unit equipment is given a unique code, and the GLTF electromechanical model, unit operation data, and equipment full-stage database are integrated into the platform; maintenance personnel click on the GLTF electromechanical model on the cloud platform, and the basic information of the equipment, equipment monitoring information and other attribute information can be viewed at any time in the BIM model of the platform, and the BIM model based on the Web terminal can be highlighted, so that the faulty equipment can be quickly located, and the relevant information of the faulty equipment can be queried. The full-cycle database of the equipment is queried through the unique code, and the maintenance personnel are assisted to fully grasp the faulty equipment and make a more complete maintenance plan. At the same time, the experience of handling this fault is uploaded to the cloud platform to assist various technicians in further repairs and maintenance. Through the four technologies of Internet of Things, power monitoring, intelligent equipment, and BIM, the operation and maintenance of electromechanical equipment, system equipment space, and equipment operation data monitoring are connected to the cloud platform, and the intelligent operation and maintenance of the building energy system is controlled through the cloud platform to realize equipment operation monitoring, daily inspections, personnel management, auxiliary maintenance, space management, and cost management.

[0054] The large-scale commercial building energy system intelligent operation and maintenance platform can query the spatial location of electromechanical equipment, highlight the basic information of the equipment, query the sensor monitoring information, and find the logical upstream and downstream of the equipment through the unique code of the equipment to assist in locating the faulty equipment.

[0055] The above description is only a preferred embodiment of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) to form a technical solution.

Claims

1. A method for constructing a large-scale commercial building energy system intelligent operation and maintenance platform based on BIM, characterized in that: The following steps are involved: Step 1: Install sensors based on large building energy systems; Step 2: Build a BIM electromechanical model and convert the BIM electromechanical model into a GLTF electromechanical model; Step 3: Create a database for all stages of the equipment; Step 4: Deploy the cloud platform and connect sensors; Step 5: Build a BIM-based intelligent operation and maintenance platform for large-scale commercial building energy systems. The intelligent operation and maintenance platform for large-scale commercial building energy systems can query the spatial location of electromechanical equipment, highlight the basic information of the equipment, query the sensor monitoring information, and find the logical upstream and downstream of the equipment through the unique equipment code to assist in locating the faulty equipment.

2. According to a method for constructing a BIM-based large-scale commercial building energy system intelligent operation and maintenance platform according to claim 1, it is characterized in that: Step 1 is as follows: According to the energy system operation requirements and monitoring requirements, install sensors on the energy system unit equipment, specifically install pressure transmitters, temperature transmitters, and electromagnetic heat and cold meters to monitor the supply and return water pressure, supply and return water temperature, flow rate, and flow rate of the unit equipment.

3. The method for constructing a BIM-based large-scale commercial building energy system intelligent operation and maintenance platform according to claim 2 is characterized in that: The sensor monitors the operation data of the unit, is connected to the PLC controller via the RS485 bus, and the corresponding Internet of Things protocol is configured in the PLC controller. The PLC controller controls the start and stop of the unit and the supply and return water temperature, supply and return water pressure, flow rate, and flow rate of the unit through the frequency conversion controller.

4. The method for constructing a BIM-based large-scale commercial building energy system intelligent operation and maintenance platform according to claim 1 is characterized in that: Step 2 is as follows: first, use Autodesk Revit to construct a BIM electromechanical model for the energy system of a large commercial building, then use a lightweight plug-in to lightweight the BIM electromechanical model. The lightweight model is a GLTF electromechanical model. Finally, import the GLTF electromechanical model into the cloud platform, and the GLTF electromechanical model is displayed in three dimensions through the cloud platform.

5. The method for constructing a BIM-based large-scale commercial building energy system intelligent operation and maintenance platform according to claim 4 is characterized in that: The GLTF electromechanical model includes a unit equipment model and a sensor model, wherein the electromechanical equipment model enters the basic information of the equipment, including system type, equipment model, system to which it belongs, power supply area, equipment name, equipment unique code, manufacturer, maintenance manual, equipment size, equipment power, and the sensor model enters the sensor monitoring information, including sensor range, sensor accuracy, monitoring data, and sensor model.

6. The method for constructing a BIM-based large-scale commercial building energy system intelligent operation and maintenance platform according to claim 1, characterized in that: Step 3 is as follows: using MySQL database to store the full-stage database of electromechanical equipment, and determining the database usage requirements, including: designing electromechanical equipment replacement record database, electromechanical equipment repair database, electromechanical equipment maintenance database, electromechanical equipment basic information database, and electromechanical equipment disposal experience database; The unique code of the electromechanical equipment corresponding to the full-stage database is consistent with the unique code of the equipment in the BIM electromechanical model.

7. The method for constructing a BIM-based large-scale commercial building energy system intelligent operation and maintenance platform according to claim 1 is characterized in that: Step 4 is as follows: based on the functional requirements of the building energy system, develop a cloud platform using the technology of front-end and back-end separation, configure the server environment, upload the cloud platform to the server, configure the platform with the corresponding IoT protocol, load the transmitted sensor monitoring data onto the platform, and visualize the data on the platform; The data visualization shows the trend of the number of repairs for equipment per quarter and the number of warranty repairs for equipment per quarter.

8. The method for constructing a BIM-based large-scale commercial building energy system intelligent operation and maintenance platform according to claim 1 is characterized in that: Step 5 is as follows: in accordance with national requirements and project needs, unique codes are assigned to the unit equipment, and the GLTF electromechanical model, unit operation data, and equipment full-stage database are integrated into the platform; through the Internet of Things, power monitoring, smart devices, BIM and other four technologies, the electromechanical equipment operation and maintenance, system equipment space, and equipment operation data monitoring are connected to the cloud platform, and the building energy system is intelligently operated and maintained through the cloud platform to achieve equipment operation monitoring, daily inspections, personnel management, auxiliary maintenance, space management, and cost management.

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