KR20110109698A - System and method for control of hvac, lighting and skin based on the wire/wireless network - Google Patents

Abstract

The present invention, the HVAC system control unit for receiving room temperature information; An illumination system controller configured to receive indoor illumination information; And receiving outdoor weather information, receiving the indoor temperature information from the HVAC system control unit, receiving the indoor illuminance information from the lighting system control unit, and inputting the received information into a building envelope operating model. It provides a wired and wireless network-based HVAC, lighting and skin control system, characterized in that it comprises a building skin system control unit operable.
According to the present invention, the indoor condition (temperature, illuminance) is changed by the execution of an operating model in which the building envelope is adjusted to be suitable for outdoor and indoor environments, and the changed indoor condition is inputted again through a sensor to the HVAC system and the lighting system, so that the tactical By repeating one step, real-time interlocking control considering both indoor and outdoor conditions may be performed.

Description

Wire and wireless network based HAC, lighting and skin control system and method thereof {System and method for control of HVAC, lighting and skin based on the wire / wireless network}

The present invention relates to a system and method for controlling a building on a wired or wireless network basis. More specifically, the present invention, the HVAC system control unit for receiving room temperature information; An illumination system controller configured to receive indoor illumination information; And receiving outdoor weather information, receiving the indoor temperature information from the HVAC system control unit, receiving the indoor illuminance information from the lighting system control unit, and inputting the received information into a building envelope operating model. A wired and wireless network based HVAC, lighting and skin control system, characterized in that it comprises an operable building envelope system control.

Building envelope systems such as windows, sunshades, and ventilation systems have a significant impact on building energy savings and a comfortable indoor environment. However, the conventional building envelope system has the following problems.

Currently, building envelope control is mostly manual rather than automatic. For example, in the case of the sunshade device, the user directly moves to the place where the sunshade device is located to adjust the solar inflow by using a manual adjustment device. It was not possible for the user to check the indoor conditions in real time and maintain the indoor environment in a comfortable state.

Even in the case of automatic control rather than manual control, the building envelope model does not integrate with HVAC (heating, ventilation, air-conditioning) systems or lighting systems. For example, when the indoor environmental condition is in the cooling mode, the building envelope model may have a problem such as inflow of solar radiation to increase the cooling load.

In order to solve the above problems, Korean Patent Application No. 10-2005-0083408 has proposed a home network system that detects and controls data on an external temperature, the amount of sunshine, and the direction of light. However, the system did not provide an optimal building environment to the user substantially to control the home network by matching the detected data based on the accumulated data.

Korean Patent Application No. 10-2005-0000241 proposes a method of adjusting the indoor environment by using a pre-stored algorithm according to the result of detecting the indoor environmental condition. However, the method does not control the building envelope and thus does not substantially provide the effect of automatically controlling the indoor environment.

Japanese Patent Application Laid-Open No. 2007-306608 proposes a method for controlling a building management device based on wireless Internet by HTML-forming building information. However, the system does not consider the surrounding environment because there is no consideration of indoor and outdoor environment sensing.

Therefore, the present invention is to achieve a real-time interlocking control between the building envelope operating model (controller or controller), HVAC system, lighting system operating model using a building envelope control strategy to overcome the problems of the prior art as described above.

One embodiment of the present invention for solving the above problems, the HVAC system control unit for receiving room temperature information; An illumination system controller configured to receive indoor illumination information; And receiving outdoor weather information, receiving the indoor temperature information from the HVAC system control unit, receiving the indoor illuminance information from the lighting system control unit, and inputting the received information into a building envelope operating model. It provides a wired and wireless network-based HVAC, lighting and skin control system, characterized in that it comprises a building skin system control unit operable.

In addition, the building envelope operating model is preferably a model operated by any one method selected from the group consisting of rule-based control method, gradient method, and exhaustive search method.

Here, the building envelope operating model according to the gradient method is operated according to the state vector x (t) over time, and the state vector (x (t)) is

T is time, u is an input variable, A is a state matrix, and b is a load vector.

In addition, here the building envelope operating model according to the gradient method is additionally operated according to the objective function (J), the objective function (J),

Where J _energy is the solar radiation (Q _{sol, trans} ) entering the room, the indoor heat gain and heat loss (Q _conv , Q _rad ) due to convective and radiant heat transfer from the interior window surface, and natural light when this decrease amount (Q _DA), and the hollow layer of artificial light energy present due to the sum of the hollow layer obtained indoor heat due to the control of the air (Q _air), J _{sikwae ever} average natural light illumination (E _avg) Is the sum of natural light's uniformity (U), natural light's unpleasant clarity (DGI), J _{thermal comfort} is the expected mean _heat sensation (PMV), and J _ventilation is the air intake through the skin (CMH). Do.

In addition, it is preferable that the envelope of the building operated by the building envelope system control unit is any one or more selected from the group consisting of window devices, sun shade devices, and ventilation devices.

In addition, the HVAC, lighting and envelope control system further comprises a user terminal, the user terminal is preferably wirelessly associated with the building envelope system control unit.

Here, the user terminal is particularly preferably able to receive a control signal for operating the envelope of the building to the building envelope system control unit.

In addition, the indoor temperature information is measured by an indoor temperature sensor associated with the HVAC system control unit, the indoor illuminance information is measured by an indoor illuminance sensor connected to the lighting system control unit, and the outdoor weather information is measured by the building It is preferably measured by an outdoor weather sensor in conjunction with an enclosure system control.

In another embodiment of the present invention for solving the above problems, the HVAC system control unit receives the room temperature information, the lighting system control unit receives the indoor illuminance information, and the building envelope operating model receives the outdoor weather information step; Receiving, by the building envelope operating model, the indoor temperature information and the indoor illuminance information; And operating the building envelope by inputting the received information to the building envelope operating model by the building envelope operating model. The wired / wireless network-based HVAC, lighting and envelope control method is provided.

Indoor conditions (temperature, illuminance) are changed by the execution of an operating model in which the building envelope is adapted to the outdoor and indoor environment, and the changed indoor conditions are re-entered via sensors to the HVAC system and lighting system, repeating the above steps. By implementing, real-time interlocking control considering both indoor and outdoor conditions can be executed.

This real-time interlock control can provide building users with optimal energy efficiency, optimal comfort and heat comfort, and optimal ventilation.

In addition, the building envelope may be operated to suit the building user by utilizing rule-based control methods, gradient methods, or exhaustive search methods.

In addition, building information can be effectively delivered to a user terminal inside or outside the building, thereby increasing user convenience.

1 is a schematic diagram of a wired and wireless network based HVAC, lighting and envelope control system according to the present invention.
2 is a flowchart of a wired / wireless network-based HVAC, lighting and envelope control method according to the present invention.

Detailed description of the HVAC, lighting and skin control system according to the invention

Hereinafter, a wired / wireless network-based HVAC, lighting and envelope control system and method thereof will be described in detail with reference to the accompanying drawings.

1 is a schematic diagram of a wired / wireless network based HVAC, lighting and skin control system according to the present invention.

The HVAC, lighting and envelope control system according to the present invention includes a building envelope system controller 100, an HVAC system controller 200, and an illumination system controller 300. In a preferred embodiment, it may further include a user terminal 400.

The outdoor weather sensor 510 may be connected to the building envelope system controller 100 to receive information about the outdoor weather. The information on the outdoor weather may be temperature, wind direction, wind speed, or solar radiation, but various information may be obtained by changing the type of sensor without being limited thereto. In addition, the number of outdoor weather sensors 510 is also not limited.

An indoor temperature sensor 520 may be connected to the HVAC system controller 200 to obtain information about the room temperature, and the lighting system controller 300 may be connected to an indoor illumination sensor 530 to obtain information about the indoor illumination. can do. Of course, there is no limitation on the number of the room temperature sensor 520 and the room illuminance sensor 530.

The sensors 510, 520, and 530 may be connected to each of the controllers 100, 200, and 300 by wire or wireless. In particular, in a preferred embodiment of the present invention, it is preferable to use a wireless network technology using Wi-Fi, Zigbee, or the like.

The building envelope system control unit 100 receives information on an indoor temperature and an indoor illuminance from the HVAC system control unit 200 and the lighting system control unit 300, respectively. The connection method can be wired or wireless.

Accordingly, the building envelope system controller 100 may receive both outdoor weather information, room temperature information, and indoor illuminance information, and operate the building envelope 11 of the building 10 by inputting the above information into the building envelope operating model. can do.

The building envelope may be a window device, a sunshade device, a ventilation device, or the like. As described above, the building envelope system control unit 100 controls the building by controlling the building envelope 11.

The user terminal 400 may be connected to the building envelope system controller 100 by wire or wirelessly. In particular, when connected wirelessly, the user terminal 400 does not necessarily need to be located in the building 10, and may control the building by operating the building envelope 11 outside the building 10. The user terminal 400 is a PC. PDAs, cell phones, smartphones, wall pads, etc., there is no limit, and any device capable of processing data is sufficient.

Description of the building envelope operating model according to the present invention

The building envelope operating model may be a model operated by any one method selected from the group consisting of rule-based control methods, gradient methods, and exhaustive search methods.

(1) rule-based control

Rule-based control is a method of controlling according to rules already determined by the experience or intuition of the envelope user (resident).

For example, if the sun solar radiation is 150 W / m ² or more, if the sunshade starts closing and reaches 650 W / m ² , a rule is specified to reach the sun, the outdoor weather sensor 510 detects the sun's solar radiation outdoors, and the rule In accordance with the building envelope system control unit 100 may control the shading device of the building envelope (11).

(2) gradient method

The gradient method executes a simulation model that predicts the response of the building envelope system based on information received from the sensors 510, 520, and 530, and uses the model to evaluate the system performance quantitatively. J) is calculated and, accordingly, a control variable for optimizing the objective function J is determined, and the building envelope is controlled according to the control variable.

The simulation model can be expressed by the following equation (a).

(a)

Here, x is a state vector, u is an input variable, A is a state matrix, b is a load vector, and t is time. The simulation model is constructed according to the state vector.

The objective function J can be expressed by the following formula (b).

(b)

Here, J _energy is the amount of solar radiation (Q _{sol, trans} ) flowing into the room, indoor heat gain and heat loss (Q _conv , Q _rad ) due to convection and radiant heat transfer from the glass window surface, and artificial lighting due to natural light. reduction in energy (Q _DA), and if the hollow layer is present and the sum of the obtained room-side heat (Q _air) due to the control of the hollow layer air, J _{sikwae ever} average natural light illumination (E _avg), the natural light The uniformity (U), the sum of the unpleasant luminosity value (DGI) due to natural light, J _{heat comfort} is predicted mean vote (PMV), J _ventilation is the cubic meter per hour through the skin (CMH) )to be.

An optimization algorithm is used to determine the control variables that minimize the objective function (J). For example, in a building envelope where only the sunshade is installed, min J (φ) can be found by setting the slat angle (φ) of the sunshade as a variable, or in another embodiment in a building envelope where the sunshade and the ventilation system are installed, in the airflow mode. You can find min J (φ, AFR, OR) by setting (AFR) or ventilation damper opening ratio (OR) as a variable.

In this way, the building envelope is controlled by determining the objective function and control variables.

(3) exhaustive search method

The exhaustive search method is a method of calculating a cost function for all possible combinations of control variables and finding a control variable that minimizes the cost function. As described above, the control variable may be the slat angle Φ, the airflow mode AFR, the ventilation damper opening ratio OR, but the present invention is not limited thereto.

If three control variables are selected as described above, for example, a combination as shown in the following table is possible. In the following example, only the case where the slat angle is 90 degrees and 80 degrees will be exemplarily described. However, the number increases exponentially because 0 to 90 degrees are possible in a similar manner.

Slat angle Airflow mode Ventilation Damper Opening Rate 90 degrees Indoor circulation 0% 100% Outdoor circulation 0% 100% Diagonal airflow 0% 100% Closed 0% 100% 80 degrees Indoor circulation 0% 100% Outdoor circulation 0% 100% Diagonal airflow 0% 100% Diagonal 0% 100%

(B) The solution to solving the optimization problem of the objective function (J) is omitted in this way, so that the equation can be simplified, and the dynamic characteristics can be considered based on the process of obtaining the state vector x, which is a simulation model. There is an advantage.

Description of the building envelope operating method according to the present invention

Referring to Figure 2 will be described the building envelope operating method according to the present invention.

First, the HVAC system control unit 200 receives room temperature information through the indoor temperature sensor 520, the lighting system control unit 300 receives indoor light intensity information through the indoor illumination sensor 530, and the building envelope system control unit. 100 receives outdoor weather information through the outdoor weather sensor 510 (S710).

The indoor temperature information received by the HVAC system control unit 200 and the indoor illuminance information received by the lighting system control unit 300 are transmitted to the building envelope system control unit 100 through a wired or wireless network.

The building envelope system controller 100 inputs the received information to the building envelope operating model (S720). The building envelope operating model is operated by any one method selected from the group consisting of rule-based control methods, gradient methods, and exhaustive search methods.

The building is controlled by operating the building envelope 11 by the building envelope operating model (S730).

Steps S710 to S730 as described above are made in real time and is repeatedly applied. That is, indoor information such as temperature and illuminance is changed by execution of an operating model in which the building envelope 11 is adjusted to be suitable for outdoor and indoor environments, and the changed indoor conditions are applied to the HVAC system control unit and the lighting system control unit. By re-input through the above-described steps, the real-time interlocking control considering both indoor and outdoor conditions is repeatedly executed.

Although the preferred embodiment of the present invention has been described above, the present invention is not limited to the above-described specific embodiment. That is, a person having ordinary knowledge in the technical field to which the present invention belongs may make a number of changes and modifications to the present invention without departing from the spirit and scope of the appended claims, and all such appropriate changes and modifications may be made. Equivalents should be considered to be within the scope of the present invention.

10: building
11: building envelope
100: building envelope system control unit
200: HVAC system control
300: lighting system control unit
400: user terminal
510: outdoor weather sensor
520: room temperature sensor
530: ambient light sensor

Claims (9)

A heating, ventilation, air-conditioning (HVAC) system control unit for receiving room temperature information;
An illumination system controller configured to receive indoor illumination information; And
Receives outdoor weather information, receives the indoor temperature information from the HVAC system control unit, receives the indoor illuminance information from the lighting system control unit, and inputs the received information into a building envelope operating model to operate a building envelope. Characterized in that it comprises a building envelope system control unit,
Wired and wireless network-based HVAC, lighting and skin control systems.
The method of claim 1,
The building envelope operating model,
Characterized in that the model is operated by any one method selected from the group consisting of rule-based control method, gradient method, and exhaustive search method,
Wired and wireless network-based HVAC, lighting and skin control systems.
The method of claim 2,
The building envelope operating model according to the gradient method is operated according to a state vector (x (t)) over time,
The state vector (x (t)) is

Is defined as
Wherein t is time, u is an input variable, A is a state matrix, and b is a load vector.
Wired and wireless network-based HVAC, lighting and skin control systems.
The method of claim 3, wherein
Building envelope operating model according to the gradient method is additionally operated according to the objective function (J),
The objective function (J),

Is defined as
Here, J _energy is the amount of solar radiation (Q _{sol, trans} ) flowing into the room, indoor heat gain and heat loss (Q _conv , Q _rad ) due to convection and radiant heat transfer from the glass window surface, and artificial lighting due to natural light. reduction in energy (Q _DA), and if the hollow layer is present and the sum of the obtained room-side heat (Q _air) due to the control of the hollow layer air, J _{sikwae ever} average natural light illumination (E _avg), the natural light The uniformity (U), the sum of the unpleasant luminosity value (DGI) due to natural light, J _{heat comfort} is the expected average warmth (PMV), J _ventilation is characterized in that the amount of air introduced through the skin (CMH),
Wired and wireless network-based HVAC, lighting and skin control systems.
The method according to any one of claims 1 to 4,
The envelope of the building operated by the building envelope system control unit,
At least one selected from the group consisting of a window device, a sunshade device, a ventilation device,
Wired and wireless network-based HVAC, lighting and skin control systems.
The method according to any one of claims 1 to 4,
The HVAC, lighting and skin control system further includes a user terminal,
The user terminal is characterized in that the wireless communication with the building envelope system control unit,
Wired and wireless network-based HVAC, lighting and skin control systems.
The method according to claim 6,
The user terminal may receive a control signal for operating the envelope of the building to the building envelope system control unit,
Wired and wireless network-based HVAC, lighting and skin control systems.
The method according to any one of claims 1 to 4,
The room temperature information is measured by an indoor temperature sensor associated with the HVAC system control unit,
The indoor illuminance information is measured by an indoor illuminance sensor associated with the lighting system controller, and
The outdoor weather information is measured by an outdoor weather sensor associated with the building envelope system control unit,
Wired and wireless network-based HVAC, lighting and skin control systems.
(a) the HVAC system control unit receiving indoor temperature information, the lighting system control unit receiving indoor illuminance information, and the building envelope operating model receiving outdoor weather information;
(b) the building envelope operating model receiving the indoor temperature information and the indoor illuminance information; And
(c) operating the building envelope by inputting the received information to the building envelope operating model by the building envelope operating model;
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Wired and wireless network-based HVAC, lighting and envelope control methods.

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