KR101944022B1 - BIM-BEMS apparatus and method for building energy management - Google Patents

Abstract

Provided are a BIM-BEMS linkage device and a method for energy management of a building. The open BIM-BEMS linkage system for smart facility energy management in a target building comprises: a user terminal for requesting a BIM-BEMS control device for a query related to energy management of the target building; and the BIM-BEMS control device for generating a query result in response to the request from the user terminal, generating a 3D view screen by linking the generated query result with the corresponding spatial information, and transmitting the generated 3D view screen to the user terminal.

Description

{BIM-BEMS apparatus and method for building energy management}

The present invention relates to a BIM-BEMS linking apparatus and method for managing building energy, and more particularly, to a BIM-BEMS linking apparatus for building energy management capable of managing BEMS using spatial information based on Open BIM technology. ≪ / RTI >

Building Information Modeling (BIM) refers to the process of modeling a facility in virtual space, including planning, design, engineering (structure, facility, electricity, etc.), construction, maintenance and disposal in a multidimensional virtual space. BIM's building refers to the entire life cycle of the building - design, construction, operation and management, information refers to all information contained in the entire life cycle of the building, Means an integrated tool and platform that provides production, management, and publishing of all information contained in the entire life cycle.

The BIM method is a 3D-based design and modeling method that can digitize building data to create numerical data and display 3D display effects. Data of a length connecting a start point and an end point of a line other than a simple line and a surface operation is generated, and the area is data based on the closed surface. By combining the data of length and area, volume data can be obtained.

In addition, the BIM method includes information on shape information, attribute information, relationship, and topology of an object, and is excellent in analysis, service linkage, and usability. In other words, BIM expresses each property of building objects such as walls, slabs, windows, doors, roofs, stairs, etc., and recognizes each other's relations and immediately reflects the building elements to the building design. Therefore, by using BIM, it is possible to manage and utilize all the information at all stages through the compatibility and sharing of the data generated when building the building, regardless of whether the buildings to be designed are regular or irregular .

Meanwhile, the Building Energy Management System (BEMS) is a system that efficiently manages the energy used in buildings by collecting and analyzing various information of energy facilities in the building in real time. BEMS uses IT technology to manage various building facilities such as electricity, air conditioning, crime prevention and disaster prevention to create pleasant environment, reduce energy consumption, reduce labor costs, and extend building life.

However, it is difficult to identify the location where the problem occurred during the management of building energy using BEMS. Therefore, the data on energy management is not managed based on facility or space. It is difficult to confirm the history information.

Korean Patent Laid-Open No. 10-2016-0138609 (published on December 16, 2016)

The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an energy management system and a method of managing the energy of a facility that enables intuitive confirmation based on spatial information using a BIM information, (BIM-BEMS).

According to another aspect of the present invention, there is provided a BIM-based energy management system for facility management, which displays energy management information on the basis of a facility or a space based on a user's inquiry, BEMS linkage system and method.

The solution of the present invention is not limited to those mentioned above, and other solutions not mentioned can be clearly understood by those skilled in the art from the following description.

According to an embodiment of the present invention, an open BIM-BEMS linkage system for smart facility energy management of a target building is provided to a BIM-BEMS control device in connection with energy management of the target building A user terminal requesting a query; And a BIM-BEMS controller for generating a query result in response to the request of the user terminal and generating a 3D view screen by linking the generated query result with corresponding spatial information to transmit to the user terminal.

The BIM-BEMS controller includes: a BIM database for storing BIM data for a target building, which is a smart facility energy management target; A BEMS database for storing BEMS data for the target building; A memory in which a plurality of control commands related to energy management of the target building are individually defined; When there is a query related to energy management from the user terminal, a control command corresponding to the query is executed to search and generate a query result for the query from the BEMS database, and the spatial information corresponding to the generated query result A BIM-BEMS control unit for searching from the BIM database; And a BIM-BEMS viewer for generating a 3D view screen by associating the retrieved spatial information with the query result generated by the BIM-BEMS controller.

The BIM database and the BEMS database are stored in the BIM database and the BEMS database by a predefined BIM-BEMS data structure precondition (B-DP) And a BIM-BEMS design apparatus for verifying that the data required to execute the commands are stored and configured, and defining the plurality of commands based on the BIM-BEMS data structure prerequisite conditions.

The BIM-BEMS data structure prerequisite conditions include: definition of zone concept for managing BIM space-oriented data, definition of connection information of BIM object, definition of connection structure of BIM object and BEMS device information, definition of BIM space hierarchy structure, definition of BIM object location information, BIM object and energy management control point information link structure definition, BIM object and energy management control point history information link structure definition and BIM-BEMS control observation view information definition.

A command name and a parameter are defined in each of a plurality of control commands stored in the memory and a plurality of variables vars including a variable name var_name, a variable type var_type and a variable value var_value Wherein the BIM-BEMS viewer is configured to generate a GUI including menus corresponding to the plurality of control commands defined so that the user can request a query related to the energy management, The BIM-BEMS control unit obtains a defined variable name (var_name), a variable type (var_type) and a variable value (var_value) to automatically generate a menu to operate as a user interface, The control command corresponding to the selected menu is executed to generate a query result.

According to another embodiment of the present invention, an open BIM-BEMS control method for smart facility energy management of a target building comprises: (A) transmitting a query related to energy management of the target building to a BIM- Requesting; And (B) the BIM-BEMS controller generates a query result in response to the request of the user terminal, creates a 3D view screen by linking the generated query result with the corresponding spatial information, and transmits the 3D view screen to the user terminal Step.

In the step (B), when there is a query related to energy management from the user terminal, a control command corresponding to the query is executed to search and generate a query result for the query from the BEMS database, Retrieving the corresponding spatial information from the BIM database; And generating a 3D view screen by linking the generated query result and the retrieved space information to the user terminal, wherein the BIM database stores BIM data for the target building, which is the smart facility energy management target, And the BEMS database stores BEMS data for the target building.

According to the present invention, a query for BIM-BEMS control can be easily and easily performed by individually and independently defining control commands for loading and visualizing a BIM model in the IFC format and associating with the BEMS information when retrieving information related to building energy management , Even if the user interface is changed, the control command can be loaded and executed according to the pre-rule to improve convenience.

In addition, according to the present invention, a location where a problem occurs in a building's energy management system can be searched using a predefined control command, and displayed on a spatial information basis using BIM information, thereby enabling intuitive confirmation of a user .

Also, according to the present invention, it is possible to easily identify the related data and the history information by displaying the energy management data based on the facilities or the space based on the user's query request.

The effects of the present invention are not limited to those mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the following description.

FIG. 1 illustrates an open BIM-BEMS linkage system for smart facility energy management of a target building according to an embodiment of the present invention; FIG.
2 is a diagram showing a controller structure of a control command used in the present invention,
FIG. 3 is a diagram illustrating an example in which a BIM-BEMS control unit defines a control command using XML (Extensible Mark-up Language)
4 is a diagram illustrating an example of implementing a BIM on BEMS system structure according to an embodiment of the present invention by Nodejs,
FIG. 5 is a diagram showing an example of a BIM on BEMS data structure defined with reference to B-DP as shown in [Table 3]
6 is a flowchart illustrating an open BIM-BEMS control method for smart facility energy management of a target building according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more readily apparent from the following description of preferred embodiments with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms.

Herein, when it is mentioned that the first element (or component) is operated or executed on the second element (or component) ON, the first element (or component) ) Is operated or executed in an environment in which it is operated or executed, or it is operated or executed through direct or indirect interaction with the second element (or component).

It is to be understood that when an element, component, apparatus, or system is referred to as comprising a program or a component made up of software, it is not explicitly stated that the element, component, (E.g., memory, CPU, etc.) or other programs or software (e.g., drivers necessary to drive an operating system or hardware, etc.)

It is also to be understood that the elements (or elements) may be implemented in software, hardware, or any form of software and hardware, unless the context requires otherwise.

Also, terms used herein are for the purpose of illustrating embodiments and are not intended to limit the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms "comprises" and / or "comprising" used in the specification do not exclude the presence or addition of one or more other elements.

Also, in this specification, a DB may mean functional and structural combination of software and hardware for storing information corresponding to each DB. The DB may be implemented as at least one table, and may further include a separate DBMS (Database Management System) for searching, storing, and managing information stored in the DB. In addition, it can be implemented in various ways such as a linked-list, a tree, and a relational DB, and includes all data storage media and data structures capable of storing information corresponding to the DB.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. In describing the specific embodiments below, it will be appreciated that, in some instances, portions of the invention that are well known in the art and that are not largely related to the invention are not described in order to avoid confusion, I will mention it in advance.

The respective configurations of the BIM-BEMS control device 200 of the open BIM-BEMS linkage system for smart facility energy management of the target building shown in FIG. 1 are shown to be functionally and logically separate, May not be distinguished by a separate physical device or written in a separate code, but may be easily deduced by an average expert in the technical field of the present invention.

In addition, the program for implementing the BIM-BEMS control apparatus 200 may be installed in a predetermined data processing apparatus to implement the technical idea of the present invention.

The open BIM-BEMS controller 200 for smart facility energy management of the user terminal 100 and the target building may be a desktop PC, a server, a laptop PC, a netbook computer (Netbook Computer) and the like can be installed.

1 is a diagram illustrating an open BIM-BEMS linkage system for smart facility energy management of a target building according to an embodiment of the present invention.

Referring to FIG. 1, an open BIM-BEMS linkage system for smart facility energy management of a target building according to an embodiment of the present invention includes a user terminal 100 and a BIM-BEMS controller 200.

The user terminal 100 may request the BIM-BEMS controller 200 for a query related to the energy management of the target building. The user terminal 100 accesses the BIM-BEMS control device 200 through a web browser, for example, to display a graphical user interface (GUI) screen for energy management of the target building, To request a query related to energy management.

The BIM-BEMS control device 200 individually defines BIM-BEMS control commands, provides a GUI screen including a menu corresponding to the defined control commands to the user terminal 100, Generates a query result in response to a query request, and generates a 3D view screen in association with the open BIM data, that is, spatial information, and transmits the generated query result to the user terminal 100.

The BIM-BEMS controller 200 includes a BIM-BEMS communication unit 210, a BIM database 220, a BEMS database 230, a BIM-BEMS memory 240, a BIM-BEMS viewer 250, 260).

The BIM-BEMS communication unit 210 transmits a GUI screen such as a web page generated by the BIM-BEMS viewer 250 to the user terminal 100, receives a query related to energy management from the user terminal 100, To the user terminal 100, a 3D view screen including a result of the 3D view.

In addition, the BIM-BEMS communication unit 210 can receive BEMS (Building Energy Management System) data of the target building, that is, various information related to the energy in the target building from a plurality of sensors installed in the target building.

The BIM database 220 stores open building information modeling (BIM) data for a target building targeted for smart facility energy management in an IFC (Industry Foundation Classes) format. If the BIM database 220 is implemented independently of the BIM-BEMS controller 200, the system may further include a BIM management server (not shown) for managing the BIM database 220.

The BEMS database 230 stores and updates the BEMS data of the target building.

The BIM-BEMS memory 240 may include volatile memory and / or non-volatile memory and may be implemented in various ways to implement and / or provide the operations, functions, etc. provided by the BIM- Related commands or data, one or more programs and / or software, an operating system, and the like.

For example, in the BIM-BEMS memory 240, 'a method for implementing and managing a command for BIM-BEMS control' defined in the BIM-BEMS controller of [Table 2] to be described later is defined, To provide an interface for a user to create or materialize a plurality of control commands related to energy management of the target building, and to store a plurality of generated or specified control commands individually defined and stored. Here, 'materialization' means that the user sets at least one of the parameters (var_name, var_type, var_value) of the control command.

In the BIM-BEMS memory 240, a GUI screen including a menu corresponding to a plurality of control commands is generated, a control command is executed, a BIM model in an IFC format is loaded, and 3D space information May be stored.

[Table 1] briefly shows an example of control commands related to the defined energy management.

Control command name Explanation menu view energy consumption Energy consumption display Energy consumption view energy cost Display objects with costs over 1000kw / h Energy cost render space energy index with color Indicate the energy index used in space in color Energy Index Coloring calculate yearly energy usage Calculate and display annual energy usage Annual energy usage

In Table 1, the objects can be classified into a room, an office, a living room, a staircase, a floor, a wall, a column, a ceiling, an H beam, a door, a cabinet, and a window frame based on BIM data. 'Menu' is a menu corresponding to the control command and is used when a user requests a query related to energy management.

2 is a diagram showing a controller structure of a control command used in the present invention.

Referring to FIG. 2, a command name and a parameter are defined in a control command according to an embodiment of the present invention, a plurality of vars (various) are defined in a parameter, It consists of var (variables). A var is defined with a variable name (var_name), a variable type (var_type), and a variable value (var_value), which means 'operation / command for control and / or retrieval'. The variable name is for defining a number of detailed operations (or submenus) executable for each control command, the variable type is a type of a variable value, and the variable value may be a reference value for executing an operation / command.

Therefore, the user can define the control command and the input corresponding to the control command in an independent manner so that the control command can be recycled even if the user interface is changed. That is, even if the user interface is changed, the BIM-BEMS control unit 260 may implement a user interface by reusing a plurality of predefined control commands according to the use case. The user interface may include an input window for receiving changes (for example, variable types, variable values, etc.) of the detailed operation from the user in the GUI displayed on the user terminal 100 or the GUI.

Referring again to FIG. 1, when the user terminal 100 accesses the BIM-BEMS controller 200, the BIM-BEMS viewer 250 displays a menu corresponding to a plurality of control commands stored in the BIM- (I.e., a user interface). BIM-BEMS viewer 250 can read the predefined details and display it on the user interface if the details of the control command's name, var for the control command, etc. are predefined by the user, You can change the predefined details. That is, the BIM-BEMS viewer 250 can make the user interface individually / independently for each control command. Therefore, if the control command is changed, the user interface corresponding to the changed control command can be changed without changing the entire user interface. This makes it possible to recycle control commands.

The BIM-BEMS controller 260 may control the operation of the BIM-BEMS controller 200 by executing a program stored in the BIM-BEMS memory 240.

For example, the BIM-BEMS control unit 260 can individually define BIM-BEMS control commands for a plurality of menus for energy management.

When there is a query related to energy management from the user terminal 100, the BIM-BEMS control unit 260 executes a control command corresponding to the query to retrieve and generate a query result for the query from the BEMS database 230 , And the spatial information corresponding to the generated query result can be retrieved from the BIM database 220.

For example, if 'view energy consumption' is the command name of the control command and the parameter has an input value of this command, the BIM-BEMS control unit 260 may give this input value as a parameter. That is, if the view energy consumption command has been corrected so as to list only the energy consumption exceeding a specific value, the BIM-BEMS control unit 260 inputs var_name = "criteria", var_type = "real", var_value = "1000.0 kw / h" At this time, the search criteria value of 1000.0kw / h can be input from the user through the widget and define the control command. In one control command, a number of variables (vars) can be defined according to the use case purpose (power usage reference value, number of items to be listed, etc.). For example, var_name = 'list item number' can be set in one control command when displaying the number of items to be listed.

When the user selects a menu corresponding to 'view energy consumption' in the user terminal 100 and requests a query, the BIM-BEMS control unit 260 executes a 'view energy consumption' command, Searches the BIM database 220 for spatial information of the retrieved object, and provides the retrieved result to the BIM-BEMS viewer 250. The BIM-

If the user requests to change an input value of a specific menu (for example, a reference value of energy consumption amount) on the GUI screen displayed on the user terminal 100, the BIM- (Here, the operation of acquiring var is an operation when a command for a corresponding menu is executed and processed after menu selection.) It is possible to automatically create a user interface for changing an input value. The BIM-BEMS control unit 260 controls the widget to receive an input value from the user according to the type of the variable, And it is possible to check in advance the integrity of the input value inputted by the user. When the user requests a query based on the changed input value, the BIM-BEMS controller 260 can generate a query result by referring to the changed input value.

The BIM-BEMS viewer 250 creates a 3D view screen by linking the retrieved object (i.e., query result) provided from the BIM-BEMS controller 260 with the spatial information of the retrieved object. Therefore, not only the query result is provided in text form, but also the place corresponding to the query result is displayed together with the user terminal 100, so that the user can more intuitively confirm the information.

The association of the retrieved object from the BEMS database 230 with the retrieved spatial information from the BIM database 220 may be performed by one of a variety of methods that are sought or are filed by the same inventor.

Table 2 is a table defining components of the BIM-BEMS control device 200 described with reference to FIG. 1 and FIG.

Component name role Web browser N-screen support browser for on-site management and monitoring. User terminal. BIM model BIM database management server BIM DB IFC-based BIM database BIM-BEMS controller Define and provide methods to implement and manage commands for BIM-BEMS control
controller = {command *}
* = multiple
command = {name, parameter}
name = command name

parameter defines the parameter value for the command.
The parameter types are as follows
parameter = {vars *}
vars = {var *}
var = {var_name, var_type, var_value}
var_name = variable name
var_type = Variable Type
var_value = variable value
var_type = {integer, real, string, complex}
The complex variable type is stored in var_value in the form of JavaScript Object Notation (JSON). BIM-BEMS view BIM-BEMS Component that visualizes and visualizes information by rendering information.

3 is a diagram showing an example of a control command defined by an XML (Extensible Mark-up Language) by the BIM-BEMS controller 260. Referring to FIG. 3, a control command called 'view energy consumption' 'Criteria' is defined as' var_type ',' real 'is defined as var_type, and 1000kw / h' is defined as var_value. At this time, the user interface associated with the command can be automatically created by obtaining the var from the vars defined in the command. Since var is constrained to one of integer, real, string, or complex, the command user interface can automatically display the widget that receives the input value according to the constrained variable type, Can check in advance the integrity of the values entered into the widget.

4 is a diagram showing an example of implementing a BIM on BEMS system structure according to an embodiment of the present invention with Nodejs.

The BIM on BEMS system structure described with reference to FIGS. 1 to 3 can serve as a reference model that can be implemented in various ways. In FIG. 4, BIM-BEMS controller and command are defined in C # base MVD and BIM-BEMS views are implemented in 3D view. The 3D view is responsible for rendering the result of executing the command, and is independent of command.

Meanwhile, in the embodiment of the present invention, a pre-requirement condition for designing a data structure connecting BIM-BEMS is defined. BIM-BEMS Data Structure Precondition (B-DP) as shown in [Table 3] is defined to reflect the control command definition and execution related information in the data structure.

ID Define prerequisites C1 Definition of zoning concept for BIM space-centric data management C2 Defining BIM object connection information C3 BIM object and BEMS device information connection structure definition C4 Define a BIM spatial hierarchy. Ex) buildings, floors, etc. C5 Define BIM object location information C6 Definition of BIM object and energy management point information connection structure C7 BIM object and energy management control point history information connection structure definition C8 Definition of BIM-BEMS observation view information

The definition as shown in [Table 3] can specify eight essential conditions for BIM-BEMS linkage, enabling space-based energy management after BIM on BEMS system construction. For example, to manage space-oriented data, zone concept must be defined and BIM object connection information must be defined. Therefore, this precondition is defined in BEMS position.

Thus, the BIM-BEMS controller 200 or the separate BIM-BEMS design apparatus 300 can be implemented by a pre-defined B-DP for the data structure design of the BIM database 220 and the BEMS database 230, It can be confirmed whether or not the data necessary for execution of a plurality of control commands in the database 220 and the BEMS database 230 are stored and configured. In addition, the BIM-BEMS control apparatus 200 can define a plurality of control commands based on the B-DP, and read and display data in the architecture as shown in FIG. 1, -BEMS can provide linkage information.

FIG. 5 shows an example of a BIM on BEMS data structure defined with reference to B-DP as shown in [Table 3]. The data structure shown in FIG. 5 satisfies B-DP in Table 3. [ The B-DP correspondence of the BIM-BEMS data structure designed as shown in FIG. 5 is shown in [Table 4].

ID Define prerequisites C1 T_Sector C2 T_Project.IFC_Name, T_Sector.Idx C3 T_DeviceLib C4 T_Sector.IsBuilding, T_Sector.IsTorey, T_Sector.IsSapce C5 T_Project.GPSLatitude, T_Porject.GPSLongitude C6 T_ControlInformation C7 T_ControlPoint C8 T_PointerDesign, T_DisplayPoint

Referring to [Table 4], it means that the pre-requirement condition corresponding to 'C1' is defined in the 'T_Sector' table of FIG.

In this way, the control command defined for BIM-BEMS control is meaningful only when B-DP is satisfied, and it can operate properly. If you are not satisfied, for example, you will not be able to create a command that lists and lists how much energy is consumed in a particular space. This is because this prerequisite is not satisfied and consequently no corresponding data is retrieved.

6 is a flowchart illustrating an open BIM-BEMS control method for smart facility energy management of a target building according to an embodiment of the present invention.

Referring to FIG. 6, the BIM-BEMS controller 200 may individually define BIM-BEMS control commands for a plurality of menus for building energy management (S610). Each control command can include a number of sub-menus (vars), including variable names, variable types, and input values. In step S610, the user may define control commands by setting parameters of the control commands directly through the user terminal 100 or directly from the BIM-BEMS control device 200. [

When the user terminal 100 requests the BIM-BEMS control device 200 for a query related to the energy management of the target building (S620), the BIM-BEMS control device 200 executes a control command corresponding to the query, From the BEMS database 230 (S630).

The BIM-BEMS control device 200 searches spatial information corresponding to the generated query result from the BIM database 220 (S640), creates a 3D view screen by linking and rendering the query result and the spatial information, (S650).

Meanwhile, the open BIM-BEMS control method for smart facility energy management of a target building according to the present invention may be provided in a recording medium readable by a computer by tangibly embodying a program of instructions for implementing the BIM- Can be easily understood by a person skilled in the art.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the present invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be apparent to those skilled in the art that numerous modifications and variations can be made to the present invention without departing from the scope of the present invention. Accordingly, all such modifications and variations are intended to be included within the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100: User terminal 200: BIM-BEMS control device
210: BIM-BEMS communication unit 220: BIM database
230: BEMS database 240: BIM-BEMS memory
250: BIM-BEMS viewer 260: BIM-BEMS control unit

Claims (7)

In an open BIM-BEMS linkage system for smart facility energy management of target buildings,
A user terminal for requesting a BIM-BEMS controller for a query related to energy management of the target building;
Generating a query result according to a request of the user terminal using a BEMS database storing BEMS data for a target building that is a smart facility energy management target and a BIM database storing BIM data for the target building, A BIM-BEMS controller for generating a 3D view screen by linking the query result with the corresponding spatial information and transmitting the 3D view screen to the user terminal; And
The BIM database and the BEMS database are managed by the BIM-BEMS data structure precondition (B-DP) defined beforehand in order to design the data structure of the BIM database and the BEMS database. And a BIM-BEMS designing device for confirming that the data necessary for executing the BIM-BEMS are stored and configured,
The BIM-BEMS control apparatus includes:
A memory in which a plurality of control commands related to energy management of the target building are individually defined;
When there is a query related to energy management from the user terminal, a control command corresponding to the query is executed to search and generate a query result for the query from the BEMS database, and the spatial information corresponding to the generated query result A BIM-BEMS control unit for searching from the BIM database; And
And a BIM-BEMS viewer for generating a 3D view screen by linking the query result generated by the BIM-BEMS controller and the retrieved spatial information based on the B-DP,
The BIM-BEMS data structure pre-
Definition of BIM object connection information, definition of BIM object and BEMS device information connection structure, definition of BIM spatial hierarchy, definition of BIM object location information, definition of BIM object and energy management point information, connection structure definition , BIM object and energy management control point history information link structure definition and BIM-BEMS control observation view information definition,
The BIM-BEMS control device includes a smart facility energy management module that defines and executes a plurality of control commands based on the BIM-BEMS data structure prerequisite defined in the BEMS standard, An open BIM-BEMS linkage system. delete delete delete The method according to claim 1,
A command name and a parameter are defined in each of a plurality of control commands stored in the memory and a plurality of variables vars including a variable name var_name, a variable type var_type and a variable value var_value Lt; / RTI &
The BIM-BEMS viewer,
The method of claim 1, further comprising: generating a GUI including menus corresponding to the plurality of control commands defined so that the user can request a query related to the energy management, wherein a variable name (var_name) defined in the plurality of control commands (var_type) and a variable value (var_value) to automatically generate a menu operating as a user interface,
The BIM-BEMS control unit,
Wherein when the user selects one of the menus of the GUI displayed on the user terminal, a query result is generated by executing a control command corresponding to the selected menu, and an open BIM-BEMS linkage system for smart facility energy management . delete delete

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