KR102550355B1 - Building control system and controlling methode thereof - Google Patents

Abstract

The present invention relates to a building control system and a control method thereof, and in transmitting and receiving data to monitor and control a plurality of units connected to a building control network, by filtering and transmitting data as necessary, the central controller and management In communication with the server, communication overload is eliminated, data processing is possible within a limited data range, and fast processing is possible by transmitting only necessary data.

Description

Building control system and its control method {Building control system and controlling methode thereof}

The present invention relates to a building control system and its control method, and more particularly to a building control system for transmitting and receiving filtered data in a building control system for controlling a plurality of devices in a building and its control method.

Air conditioners are installed to provide a more comfortable indoor environment to humans by discharging cold and hot air into the room to adjust the indoor temperature and to purify the indoor air to create a comfortable indoor environment.

Such an air conditioner is controlled by separating an indoor unit composed of a heat exchanger and an outdoor unit composed of a compressor and heat exchanger, etc. The refrigerant supplied and heat-exchanged in the heat exchanger of the indoor unit is again introduced into the compressor of the outdoor unit through the refrigerant pipe. Accordingly, the indoor unit discharges hot and cold air into the room through heat exchange using a refrigerant.

Recently, a building control system capable of interlocking and controlling not only an air conditioner but also devices installed in a building and integrating and controlling the devices in the building has been provided. Combined with these building control systems, air conditioners enable comprehensive management of the building. BACnet (Building Automation and Control Network) is typically used in building control.

In this building control system, an indoor unit and a ventilation unit operate in conjunction with devices in a building. At this time, a central controller controlling a plurality of devices, indoor unit, and ventilation unit in the building control system receives and registers information on the indoor unit and ventilation unit, thereby enabling monitoring and control of the indoor unit and ventilation unit.

However, in such a building control system, the amount of transmitted and received data increases according to the number of connected units when transmitting and receiving data for indoor units and ventilation units that operate in conjunction with each other, resulting in communication overload.

In particular, when the central controller of the building control system communicates with the management server, since the data that can be processed at one time is limited, data processing for a plurality of indoor unit units and ventilation units is delayed, and information on the indoor unit and ventilation unit is immediately available. An unidentified problem arises.

An object of the present invention is to transmit and receive data in a building control system to monitor and control a plurality of units connected to a building control network, a building control system for controlling a communication load by transmitting filtered data as necessary, and It is to provide a control method.

A building control system according to the present invention, a plurality of units including a building control unit and an air conditioner unit, a central controller connected to the plurality of units to monitor and control the plurality of units, and transmitting and receiving data with the central controller and a management server that performs filtering of the data for the plurality of units on at least one of a unit type, address, and function, and transmits the filtered data to the management server.

In addition, the control method of a building control system according to the present invention includes the steps of setting the type of a unit to be filtered out of a plurality of connected units, the step of first filtering the plurality of units according to the type of the selected unit, and the first filtering of the plurality of units. Displaying unit address information, selecting an address and performing secondary filtering, displaying a function list of the unit having the secondary filtered address, and performing tertiary filtering on the selected function and the tertiary filtered function Transmitting data of a unit including a.

In the building control system and its control method according to the present invention configured as described above, when a plurality of units are connected to a building control network and operate in conjunction with a plurality of devices, data for a plurality of units is transmitted to a central controller. , by allowing data filtered according to settings to be transmitted, enabling data processing within a limited data range to prevent communication overload, and enabling fast processing by transmitting only necessary data.

1 is a schematic diagram showing the configuration of a building control system according to the present invention.
2 is a diagram referenced to explain data flow between devices of a building control system according to the present invention.
3 is a block diagram briefly showing the control configuration of the central controller of the building control system according to the present invention.
4 is an exemplary view showing an embodiment of filtering data according to the type of unit of the building control system according to the present invention.
5 is an exemplary view illustrating an embodiment of filtering data according to an address assigned to a unit of a building control system according to the present invention.
6 is a diagram showing an example of filtered data of the building control system according to the present invention.
7 is a flowchart illustrating a control method of a building control system according to the present invention.

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments make the disclosure of the present invention complete, and common knowledge in the art to which the present invention belongs. It is provided to completely inform the person who has the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numbers designate like elements throughout the specification.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

1 is a configuration diagram showing the configuration of a building control system according to an embodiment of the present invention.

As shown in FIG. 1, the building control system interconnects each device in the building to form a predetermined network in the building, and integrates and controls the functions of each device.

The building control system includes a central controller 100, a management server 250, a building control unit 50, and an air conditioner unit 10, 20, and 30.

The building control unit 50 is a unit whose operation is controlled by the central controller 100, and includes a mobile device control unit 51, a security control unit 52, and a lighting control unit 53. In addition, the air conditioner unit includes an outdoor unit (10) (11) (12), an indoor unit (20), and a ventilation unit (30).

The air conditioner unit and the building control unit 50 are each connected to the central controller 100 to transmit data on the operating state of the units and operate according to the control commands of the central controller 100.

Among the building control units 50, the mobile device control unit 51 controls the operation of mobile devices in the building, such as elevators and escalators. The security control unit 52 controls the operation of security devices such as an intrusion detection device, an alarm device, and a surveillance camera for external intrusion, and disaster prevention devices such as a gas leak detector and a fire detector. The lighting control unit 53 controls and manages lighting in the building.

The central controller 100 checks and controls the operating state of the building control unit 50 including the mobile device control unit 51, the security control unit 52, and the lighting control unit 53, and controls the building. Information about the unit 50 is transmitted to the management server 250 .

In addition, the central controller 100 receives data from the outdoor unit 10, 11, and 12, the indoor unit 20, and the ventilation unit 30, monitors the operating state of the air conditioner unit, and monitors the operation. Control. At this time, in communicating with the air conditioner unit, the central controller 100 may transmit and receive data through a separate gateway (not shown).

At this time, the outdoor unit 10, 11, and 12, the indoor unit 20, and the ventilation unit 30 may be connected to a separate remote controller (not shown). In some cases, the air conditioner unit may be connected to the central controller 100 through a remote controller.

The air conditioning unit includes an outdoor unit 10, an indoor unit 20, and a ventilation unit 30, as well as an air cleaning unit, a heating unit such as a heater and a boiler (not shown), a humidifying unit (not shown), and a dehumidifying unit. (not shown) may be further included. The air conditioner unit can be applied to any of a stand-type air conditioner, a wall-mounted air conditioner, and a ceiling-type air conditioner, but a ceiling-type air conditioner will be described as an example for convenience of description below.

The outdoor unit 10 is composed of a compressor and an outdoor heat exchanger, and supplies refrigerant to the indoor unit 20 according to the operating state of the air conditioner by compressing or exchanging refrigerant. The outdoor unit 10 is driven at the request of the indoor unit, and as the cooling/heating capacity varies in response to the driven indoor unit, the number of operating outdoor unit units and the number of compressors installed in the outdoor unit are changed.

In the indoor unit 20, at least one indoor unit may be connected to one outdoor unit, and one or more of them may be provided in one indoor unit.

The management server 250 periodically communicates with the central controller 100 to receive and store data on the building control unit 50 and the air conditioner unit from the central controller 100 .

At this time, the central controller 100 and the management server 250 transmit and receive data according to the building control protocol, and transmit and receive data in a designated format during one-time communication. Accordingly, when the central controller 100 transmits/receives data for air conditioner units including a plurality of units, that is, the outdoor unit 10, the indoor unit 20, and the ventilation unit 30, the data is transmitted and received by filtering. do.

The central controller 100 pre-registers information on each unit of the air conditioner unit, classifies the unit based on any one of the type, address, and function of the unit, and sets a filtering target.

In particular, the central controller 100 may transmit/receive the filtered data by filtering only the function of an air conditioner unit capable of interlocking with the building control system and the units controlled by the building control system.

2 is a diagram referenced to explain data flow between devices of a building control system according to the present invention.

As shown in (a) of FIG. 2, the building control system monitors and controls the operation of a plurality of units based on data transmitted and received by the central controller 100 being connected to the plurality of units 10 to 50. .

In addition, the central controller 100 periodically communicates with the management server 250 to transmit data for a plurality of units to the management server 250 .

Meanwhile, as shown in (b) of FIG. 2 , the central controller 100 may be connected to the remote controller 200 . At this time, the remote controller 200 is connected to the air conditioner units, that is, the outdoor unit 10, the indoor unit 20, and the ventilation unit 30 to monitor and control the air conditioner units. The remote controller 200 may control the air conditioner unit separately from the central controller 100, and the air conditioner unit may be connected to the central controller through the remote controller 200. At this time, the remote controller 200 processes the data for the air conditioner unit regardless of the interlocking operation of the central controller 100 with the building control unit 50 .

The management server 250 is equipped with a building management program, displays data through the building management program, receives a manager's command, and transmits a control command to the central controller 100. In addition, the management server 250 operates as a web server to perform authentication for access from an external terminal (not shown), and provides data for the plurality of units 10 to 50 to the external terminal to provide information about the plurality of units. The operating state can be monitored, and data input through an external terminal can be transmitted to the central controller 100 to control a plurality of units.

3 is a block diagram briefly showing the control configuration of the central controller of the building control system according to the present invention.

Referring to FIG. 3 , the central controller 100 includes an input unit 140, an output unit 150, a data unit 130, a communication unit 120, and a control unit 110 that controls overall operations.

The communication unit 120 includes a plurality of communication modules to transmit/receive data to and from the building control unit 50 and the air conditioner unit, and applies the transmitted/received data to the control unit 110. The communication unit 120 may transmit and receive data using different communication methods in communication with the management server 250, the building control unit 50, and the air conditioner unit.

The input unit 140 includes at least one input means such as a button, switch, or touch input means. The input unit 140 applies data input by manipulating the input means to the control unit 110 . In some cases, the central controller 100 may not have an input unit capable of inputting data for setting a plurality of units. In this case, an input/output means for inputting separate data may be provided, and the management server 250 ) through which an external terminal may be connected to receive data according to controlling a plurality of units.

The output unit 150 outputs operating states of the central controller 100 and a plurality of units, including at least one of a display unit, a sound output unit such as a speaker, and a lighting device. In addition, the output unit 150 may output a predetermined sound effect or warning sound in response to a control command of the control unit 110 .

The data unit 130 includes data for the operation of the central controller, unit data 132 for the building control unit 50 and the air conditioner unit, data received from a plurality of units, and object data according to the operation of the central controller ( 131) is stored. In addition, the data unit 130 stores filtering data on the type, function, and address of a unit for filtering data on a plurality of units in object units.

The control unit 110 controls the operation of a plurality of units, that is, the building control unit 50 and the air conditioner unit in response to data input through the input unit 140 or the communication unit 120, receives the operation information, and stored in the data unit 130.

The control unit 110 controls data transmission and reception through the communication unit 120 and, as described above, transmits and receives data of the air conditioner unit by filtering the data.

The controller 110 corresponds to the data input through the input unit 140 and sets one of the filtering data as a filtering criterion for the air conditioner unit. The control unit 110 filters data of the air conditioner unit according to filtering criteria and transmits the data to the management server 250 through the communication unit 120 .

The controller 110 filters data based on at least one of a unit type, a unit address, and a unit function. Accordingly, the controller 110 prevents transmission and reception of functions of air conditioners that are not linked to building control, functions that cannot be processed by the central controller, or irrelevant data in units of objects.

For example, when the ventilation function is turned off, the central controller 100 does not transmit/receive data of the ventilation unit. In addition, when only the indoor unit is included in the object, the central controller 100 selectively transmits/receives only the data of the indoor unit by filtering, and ignores the data of the ventilation unit. In addition, the central controller 100 filters and transmits and receives data for only the object selected for each object according to the on/off setting, mode setting, and temperature setting of the indoor unit for each object, and filters the data based on the address assigned to the unit. can transmit and receive.

4 is an exemplary view showing an embodiment of filtering data according to the type of unit of the building control system according to the present invention.

As shown in FIG. 4 , the central controller 100 may classify a plurality of units according to types and filter data.

In the device filter menu 151, a plurality of units connected to the central controller 100 are displayed as individual item lists 152 according to types.

In the device filter menu 151, all selection, ventilation unit, DO (direct output), indoor unit, DI (direct input), and heat pump (AWHP) are displayed in the individual item list 152, respectively. At this time, DO (direct output) and DI (direct input) are units connected through a direct connection terminal provided in the central controller 100, and the building control unit 50 can be divided into DO and DI units.

When the indoor unit item 153 is selected in the device filter menu 151, the controller 110 selects and transmits/receives data for the indoor unit 20 among data for a plurality of units.

5 is an exemplary diagram illustrating an embodiment of filtering data according to an address assigned to a unit of a building control system according to the present invention.

As shown in FIG. 5 , the central controller 100 may filter and communicate data through the address filter menu 154 .

In the address filter menu 154, a unit list 155 in which addresses are displayed is displayed.

At least one unit from the unit list 155 may be selected.

For example, when a unit having an address of 00, 01, 02, 03, or 04 is selected from among a plurality of units, the central controller 100 filters data for the selected unit 156 to transmit/receive the data.

6 is a diagram showing an example of filtered data of the building control system according to the present invention.

As shown in FIG. 6 , the central controller 100 may filter data according to functions.

The function filter menu 157 displays a device address 159a, a function filter 159b, an object name 159c by function, an instance number 159d, and a data type 159e, so that objects can be selected by function.

Depending on whether the function filter 159b item is selected, whether to filter objects for each function is set. The central controller 100 transmits and receives data after excluding an object having a corresponding function with respect to an object for which a function filter is not selected.

For example, when the mode setting function 158 is excluded, the central controller 100 transmits and receives only data including the remaining objects except for the mode setting function.

Each of the plurality of units may include a plurality of objects for each function, as shown, and the same object for each function may be included among the plurality of units.

Accordingly, when an object according to a function is selected, data may be transmitted/received by filtering an object for the selected function and filtering only data for a unit including the object for each selected function.

4 to 6, when an indoor unit is selected according to the type of unit, address information of a plurality of indoor unit units is displayed, and among the plurality of indoor unit units, the addresses are 00, 01, 02, 03, 04 indoor unit is selected.

In addition, among data of indoor unit units having addresses of 00, 01, 02, 03, and 04, only data for functions other than objects for mode setting are transmitted.

In this way, the central controller 100 may filter data for at least one of the unit type, address, and function, and transmit the filtered data to the management server 250.

7 is a flowchart illustrating a control method of a building control system according to the present invention.

As shown in FIG. 7 , when the central controller 100 communicates with the management server 250, the filtered data is transmitted according to the request of the management server 250.

Since the central controller 100 cannot transmit data for a plurality of units at once, data to be filtered is selected through a filtering setting menu (S310).

The control unit 110 of the central controller 100 classifies and displays a plurality of units according to the type as shown in FIG. 4 and filters data according to the type of the selected unit (S320). For example, when an indoor unit is selected, only data of the indoor unit among a plurality of units is filtered.

In addition, address information is displayed for each type of the selected unit, and a target unit is set according to the address assigned to the unit (S330).

For example, when an indoor unit is selected, address information of the indoor unit is displayed as shown in FIG. 5 described above. At this time, the controller 110 filters data for a unit having a selected address among indoor unit units. That is, only the data of the indoor unit units whose addresses are 00, 01, 02, 03, and 04 are selected.

When the type and address of the unit are selected, objects for each function of the corresponding unit are displayed and filters are set according to the function (S340).

For example, as shown in FIG. 6 , the controller 110 creates objects for each function, excluding the mode function, among data of indoor unit units having addresses 00, 01, 02, 03, and 04.

The control unit 110 transmits the data to the management server 250 after filtering according to the type, address and function of the unit (S350).

The central controller 100 transmits only the filtered data by filtering the data when necessary or at the request of the management server when transmitting data.

Therefore, in the building control system of the present invention, data can be transmitted and processed more effectively in a building control system that can be transmitted at once by filtering according to the type, address, and function of a unit, rather than transmitting all data for a plurality of units. there will be

Even though all components constituting an embodiment of the present invention have been described as operating in combination, the present invention is not necessarily limited to these embodiments. Within the scope of the object of the present invention, depending on embodiments, all components may be selectively combined with one or more to operate.

The above description is merely an example of the technical idea of the present invention, and various modifications and variations can be made to those skilled in the art without departing from the essential characteristics of the present invention.

10: outdoor unit 20: indoor unit
30: ventilation unit 50: building control unit
100: central controller 250: management server

Claims (11)

a plurality of units including a building control unit and an air conditioner unit;
a central controller connected to the plurality of units to monitor and control the plurality of units; and
It includes a management server that periodically transmits and receives data with the central controller,
The central controller,
Filtering the data of the plurality of units with respect to at least one of the type, address, and function of the unit, and transmitting the filtered data to the management server;
A building control system characterized in that when a predetermined function is turned off, data of a unit related to the function turned off is excluded and filtered data is transmitted. According to claim 1,
The building control system, characterized in that the central controller filters and transmits the data for the plurality of units according to the request of the management server. According to claim 1,
The central controller filters the function of the air conditioner unit that can be interlocked and the data of the controllable unit when controlling the building, and transmits the filtered data. According to claim 1,
The building control system of claim 1 , wherein the central controller displays types of selectable units through a device filter menu and filters data for units selected through the device filter menu. According to claim 1,
The central controller displays address information for each unit through an address filter menu,
Building control system, characterized in that for filtering the data for the unit having the address selected through the address filter menu. According to claim 1,
The building control system, characterized in that the central controller displays function information for each unit through a function filter menu, and filters data by setting an object for a function selected through the function filter menu. According to claim 6,
Wherein the central controller filters data for a unit including an object according to the selected function among the plurality of units. According to claim 1,
The central controller registers information on the plurality of units,
The building control system, characterized in that for setting the filtering target by classifying the plurality of units into unit types, addresses, and functions. In the building control system including a central controller for monitoring a plurality of units including a building control unit and an air conditioner unit and a management server for periodically transmitting and receiving data with the central controller,
setting a type of unit to be filtered out of the plurality of units;
first filtering the plurality of units according to the type of the selected unit;
displaying address information of the firstly filtered unit and performing second filtering by selecting an address;
displaying a function list of the unit having the secondary filtered address, and performing tertiary filtering on the selected function; and
Transmitting data of a unit including the third-order filtered function,
A control method of a building control system, characterized in that when a predetermined function is turned off, data of a unit related to the function that is turned off is excluded and filtered data is transmitted. According to claim 9,
registering information about the plurality of units; and
The control method of the building control system further comprising the step of setting a filtering target by classifying the plurality of units according to the type, address, and function of the unit. According to claim 9,
A control method of a building control system, characterized in that for filtering the data for the plurality of units according to the type, address, and function of the unit through the first filtering, the second filtering, and the third filtering.

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