KR20180028074A - Air conditioning control system retractable large spatial structure - Google Patents

Abstract

The present invention relates to an air conditioning control system. According to the air conditioning control system of an opening and closing type large space, the opening and closing type large space can be divided into at least two regions. Moreover, air conditioning control apparatuses for cooling and heating control can be provided in order to maintain predetermined temperature in each of the regions. Each of the air conditioning control apparatuses comprises: a wind direction/wind speed sensor for detecting a wind direction and the wind speed; a temperature/humidity sensor for detecting the temperature and humidity; and a controller. The controller receives wind direction data and wind speed data from the wind direction/wind speed sensor, and receives temperature data and humidity data from the temperature/humidity sensor. Moreover, the controller controls an angle of air conditioner output and a ventilation hole to maintain the temperature of the regions using the received data. According to the present invention, the wind direction data and wind speed data can be used in the opening and closing type large space, thereby providing more efficient cooling and heating.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an air conditioning control system in a retractable large space,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air-conditioning control system, and more particularly, to an air-conditioning control system for efficiently controlling air-conditioning and heating in an openable and closable space such as a general gymnasium, a baseball field,

Generally, an air conditioner uses a refrigeration cycle of a refrigerant composed of a compressor, a condenser, an expansion mechanism, and an evaporator to cool or heat the room to create a more comfortable indoor environment for the user.

In the case of industrial air conditioners or central air conditioners, water is cooled in a cooler consisting of a compressor, a condenser, an expansion device, and an evaporator, and water in a cooler is used to air the interior of a large building such as a building, a factory or a gymnasium .

On the other hand, recently, retractable large space buildings such as a retractable dome stadium are increasing. Here, the openable and closable space is not limited to a large space formed in a building having an opening / closing function, such as a retractable dome ballpark, but also includes a large space formed in an athletic facility such as a general gymnasium, a baseball field, The open and closed spaces of sports facilities such as gymnasium, baseball field, soccer field, etc.

The characteristics of the large space of the sports facility necessitate intensive cooling or heating of the spectator seat, and unnecessary energy consumption occurs when cooling or heating is performed to the other space. In other words, there is a need for a technique to maintain a constant environment such as constant temperature and humidity regardless of the position of the stands, while minimizing energy consumption in unnecessary places other than the audience seat in the retractable large space.

Korea Patent No. 10-0972007

SUMMARY OF THE INVENTION It is an object of the present invention to provide an air conditioning control system capable of efficiently cooling and heating air in an openable and closable space and monitoring abnormality of the air conditioning system.

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

In order to achieve the above object, the present invention provides an air conditioning control system in a retractable large space, comprising an air conditioning control device for dividing the retractable large space into two or more regions and controlling cooling and heating so that a constant temperature is maintained in each region Each of the air conditioner control devices receives a wind direction and wind speed sensor for detecting a wind direction and a wind speed, a temperature and humidity sensor for detecting temperature and humidity, and a wind direction and wind speed data from the wind direction wind speed sensor, And controls the output of the air conditioner and the angle of the air vents so that the temperature of the corresponding area is constant using the received data.

The controller includes a sensor input unit for receiving data from the wind direction sensor and the temperature and humidity sensor, a central processing unit for analyzing and processing the received data so that a predetermined temperature is maintained in the corresponding region, A control command unit for generating a control command for controlling the angle of the output of the air conditioner and the ventilation hole according to a result processed by the central processing unit, And a wired communication unit for communicating with the ventilation hole.

Wherein the temperature / humidity sensor further includes at least two wireless temperature / humidity sensors that transmit data in a wireless communication system, and a wire and humidity / temperature sensor that receives power from a commercial power source and is connected to the controller by wire to transmit data, And a wireless communication unit for communicating with the wireless temperature / humidity sensor through a wireless communication method.

The wireless temperature / humidity sensor transmits temperature and humidity data sensed according to a first predetermined period, and the wire / temperature / humidity sensor transmits temperature and humidity data sensed according to a second predetermined period shorter than the first period And the controller can derive data of a time zone in which the temperature and humidity data are not received from the wireless temperature / humidity sensors using the temperature and humidity data received from the wire and temperature / humidity sensor.

The controller can infer the data by mapping the trend of the temperature and humidity data received from the wire / temperature / humidity sensor to the temperature and humidity data received from the wireless / temperature / humidity sensors.

In one embodiment of the present invention, the air conditioner and the vent port are connected to each other through a duct, and the wind direction sensor includes a first wind direction wind speed sensor installed at an entrance of the duct and a second wind direction wind speed sensor installed at the wind direction Wherein the controller compares an input wind speed value sensed by the first wind speed sensor and an output wind speed value sensed by the second wind speed sensor to determine whether the ratio of the input wind speed value to the output wind speed value is equal to or less than a predetermined reference value , It can be determined that there is an abnormality in the duct.

In an embodiment of the present invention, at least two air vents are provided, and at least two air vents are connected to each other through a duct. The air conditioning control system includes a differential pressure sensor And an output differential pressure sensor provided in each of the two or more ventilation holes, wherein if the sum of output differential pressure values of all the output differential pressure sensors is 50% or less of an input differential pressure value of the input differential pressure sensor, It is possible to generate an alarm by judging that there is an abnormality including clogging or loss.

The air conditioner control system further includes a current measuring device installed in a line to which power is input to the air conditioner including the air conditioner and measuring a current, wherein the current value of the current measuring device is greater than a predetermined reference current If it increases by more than a certain ratio, it can be judged that there is an abnormality in the corresponding air conditioning equipment.

According to the present invention, more efficient cooling and heating can be realized by using the wind direction and wind speed data in the openable and closable space.

In addition, according to the present invention, it is possible to easily detect an abnormality of the inner duct in the air conditioner.

In addition, according to the present invention, it is possible to easily determine the degree of aging by analyzing the consumed current value of the air conditioning system.

1 is a conceptual diagram schematically showing an air conditioning control system in an openable and closable space according to an embodiment of the present invention.
2 is a block diagram illustrating an internal configuration of a controller according to an exemplary embodiment of the present invention.
3 is a flowchart illustrating a method of controlling air conditioning according to a wind speed value in an air conditioning control system according to an embodiment of the present invention.
4 is a conceptual diagram for explaining a state of a duct using a differential pressure sensor in an air conditioning control system according to an embodiment of the present invention.
5 is a diagram for explaining a method of determining the degree of aging of an air conditioning system in an air conditioning control system according to an embodiment of the present invention.
6 is a diagram illustrating a wireless temperature / humidity sensor and a wire / temperature / humidity sensor in an air conditioning control system according to an embodiment of the present invention.
FIG. 7 is a table showing values sensed by a wire temperature / humidity sensor in an air conditioning control system according to an embodiment of the present invention.
FIG. 8 is a graph showing the diagram of FIG. 7. FIG.
FIG. 9 is a chart showing values sensed by a wireless temperature / humidity sensor in an air conditioning control system according to an embodiment of the present invention.
FIG. 10 is a graph showing the diagram of FIG. 9. FIG.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted in an ideal or overly formal sense unless expressly defined in the present application Do not.

In the following description of the present invention with reference to the accompanying drawings, the same components are denoted by the same reference numerals regardless of the reference numerals, and redundant explanations thereof will be omitted. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

The present invention relates to an air conditioning control system in an openable and closable space such as a general gymnasium, a baseball field, a soccer field, and the like.

1 is a conceptual diagram schematically showing an air conditioning control system in an openable and closable space according to an embodiment of the present invention.

1, the air conditioning control system of the present invention is divided into two or more areas A, B, ..., F in the openable type large space 10, And air conditioning control for individually controlling the cooling and heating so as to be maintained.

1, the openable and closable space 10 includes an A zone, a B zone, , And F regions, respectively.

For example, in the A region, each air conditioner control apparatus in the present invention includes a controller 100, a wind direction sensor 200, and a temperature / humidity sensor 300.

The wind direction wind speed sensor 200 serves to sense wind direction and wind speed.

The temperature and humidity sensor 300 senses temperature and humidity.

The controller 100 receives the wind direction and the wind speed data from the wind direction wind speed sensor 200 and receives the temperature and humidity data from the temperature and humidity sensor 300 and outputs the output of the air conditioner And the angle of the air vent.

2 is a block diagram illustrating an internal configuration of a controller according to an exemplary embodiment of the present invention.

2, the controller 100 includes a wireless communication unit 110, a sensor input unit 120, a central processing unit 130, a data storage unit 140, a control command unit 150, a wired communication unit 160, (170).

The wireless communication unit 110 communicates with the temperature / humidity sensor 300 and the wind direction sensor 200 that communicate wirelessly.

The sensor input unit 120 receives data from the wind direction wind speed sensor 200 and the temperature / humidity sensor 300 through the wireless communication unit 110.

The central processing unit 130 analyzes and processes the received data so that a predetermined temperature is maintained in the corresponding region.

The data storage unit 140 stores the received data and the analyzed data in the central processing unit 130.

The control command unit 150 generates a control command for controlling the angle of the vent and the output of the air conditioner according to the result processed by the central processing unit 130. [

The wired communication unit 160 transmits a control command to the air conditioner and the ventilation opening. 2, the wired communication unit 160 includes a wired communication unit 1 connected to an air conditioner and a wired communication unit 2 connected to a ventilation opening.

The power supply unit 170 serves to supply power to the controller 100.

3 is a flowchart illustrating a method of controlling air conditioning according to a wind speed value in an air conditioning control system according to an embodiment of the present invention.

Referring to FIG. 3, the controller 100 receives the wind direction and wind speed data from the wind direction wind speed sensor 200 (S310).

If the received wind speed value is smaller than the previously analyzed wind speed value, it is determined whether the ventilation hole is blocked or an obstacle exists (S330, S350).

If it is determined that the vent is closed (S330), the amount and direction of the output of the other vent are adjusted (S340).

Alternatively, if it is determined that there is an obstacle (S350), the angle of the ventilation hole is adjusted to allow efficient cooling and heating (S360).

In an embodiment of the present invention, the air conditioner and the air vents are connected to each other through a duct, and the wind direction sensor 200 includes a first wind direction wind speed sensor installed at the entrance of the duct and a second wind direction wind speed sensor .

At this time, the controller 100 compares the input wind speed value detected from the first wind direction wind speed sensor with the output wind speed value sensed from the second wind direction wind speed sensor, and when the ratio of the output wind speed value to the input wind speed value is equal to or less than a predetermined reference value , It can be judged that there is an abnormality in the duct. For example, if the ratio of the input wind speed value to the output wind speed value is 20% or more, it is determined to be normal. If the ratio is less than 20%, it is determined that there is a problem in the duct.

4 is a conceptual diagram for explaining a state of a duct using a differential pressure sensor in an air conditioning control system according to an embodiment of the present invention.

Referring to FIG. 4, at least two air vents are provided, and the air conditioner and at least two vents are connected through a duct 400. In the embodiment of FIG. 4, four ventilation openings are provided, and four output differential pressure sensors are provided.

The differential pressure sensor (a) is installed at the entrance of the duct 400.

The output differential pressure sensors 410, 420, 430, and 440 are respectively installed in four ventilation openings.

In the present invention, by comparing the value of the input differential pressure sensor (a), the sum of the values of the output differential pressure sensors 410 to 440 of the respective vents, and the value of the friction (about 50%) in the duct 400, Such as the clogged state of the user.

The frictional value in the duct 400 increases when the duct is bent to the letter A, and there is a slight friction value even in the form of a straight line. Here, it is impossible to measure all the frictional values, and it is assumed that approximately 50% of the input differential pressure value is estimated, and the differential pressure value of the remaining 50% is assumed to be the sum of differential pressure values at all the ventilation holes. That is, the sum of differential pressure values of all vents should exceed 50% of the input differential pressure value. If it is less than or equal to the predetermined value, it is determined that the duct is clogged or lost, and an alarm is generated, and the manager checks the duct according to the alarm.

In the present invention, when the sum of the output differential pressure values of all the output differential pressure sensors 410 to 440 is 50% or less of the input differential pressure value of the input differential pressure sensor a, the controller 100 determines that an abnormality And generates an alarm.

5 is a diagram for explaining a method of determining the degree of aging of an air conditioning system in an air conditioning control system according to an embodiment of the present invention.

Referring to FIG. 5, the current measuring device 520 is installed in the line 530 to which the power of the air conditioning equipment 510 including the air conditioner is inputted, and measures the current.

At this time, if the current value of the current measuring device 520 increases by a predetermined ratio or more than a predetermined reference current, the controller 100 determines that there is an abnormality in the air conditioning equipment.

That is, in the present invention, after the current measuring device 520 is installed in the input power line 530 for each air conditioner, the consumption current trend for each mode is stored. And, when the equipment is old or abnormal, the change in the current consumption is detected, and the state of the equipment is determined and maintained by analyzing each consumed current. Usually, the consumption current value increases with the aging of the equipment over time based on the current value of each mode of each air conditioner. For example, if the consumption current value increases 10% of the initial reference value over time based on the current value of the initial equipment mode, the state of interest increases by 20%, the state of charge increases by 30% or more, Or more.

6 is a diagram illustrating a wireless temperature / humidity sensor and a wire / temperature / humidity sensor in an air conditioning control system according to an embodiment of the present invention.

6, in the area A, the temperature / humidity sensor 300 includes at least two wireless temperature / humidity sensors 610 for transmitting data in a wireless communication manner, and a controller 610 for receiving power from a commercial power source, And a wire temperature / humidity sensor 620 for transmitting data.

The wireless temperature / humidity sensor 610 may transmit the temperature and humidity data for 30 seconds, 1 minute, or more due to the limitation of the consumed current. Therefore, the values between the cycles of the plurality of wireless temperature / humidity sensors 610 in the same space can not be known. In consideration of this point, in the present invention, when a plurality of wireless temperature / humidity sensors are installed in a certain space, one wire / temperature / humidity sensor using a commercial power source is additionally installed. In the case of the wire / The data is transmitted every 0.5 second and the sensor value of the time interval between the cycles of the other wireless temperature and humidity sensor values is inferred according to the change of the value output from the wire temperature and humidity sensor.

The wireless temperature / humidity sensor 610 transmits the sensed temperature and humidity data according to a first predetermined period, and the wire temperature / humidity sensor 620 senses the temperature sensed according to a predetermined second period shorter than the first period, And transmits humidity data.

The controller 100 then uses the temperature and humidity data received from the wire / temperature / humidity sensor 620 to infer the data of the time zone in which the temperature and humidity data are not received from the wireless / temperature / humidity sensors 610.

More specifically, the controller 100 estimates the data by mapping the trend of the temperature and humidity data received from the wire / temperature / humidity sensor 620 to the temperature and humidity data received from the wireless / temperature / humidity sensors 610 can do.

This process will be described with reference to the drawings.

FIG. 7 is a chart showing values sensed by a wire and temperature / humidity sensor in an air conditioning control system according to an embodiment of the present invention, and FIG. 8 is a graph showing a chart of FIG.

FIG. 9 is a table showing values sensed by the wireless temperature / humidity sensor in the air conditioning control system according to an embodiment of the present invention, and FIG. 10 is a graph showing the table of FIG. 9.

Referring to FIGS. 7 to 10, for example, the data value of the wire temperature / humidity sensor is 24.2 ° C. at 0 second and 24.6 ° C. at 30 seconds. The data value of the wireless temperature / humidity sensor is 23.3 ° C at 0 second and 23.8 ° C at 30 seconds.

In the present invention, the data of the wireless temperature / humidity sensor is derived by using these values. If the data value of the wireless temperature / humidity sensor is y and the data value of the wire temperature / humidity sensor is x, first, the linear equation y = ax + b Leave and obtain a and b. If the above data values are substituted for x and y, 23.3 = 24.2a + b and 23.8 = 24.6a + b are obtained.

As a result, the equation of Y = 1.25X-6.95 can be calculated, and the data value of the wireless temperature / humidity sensor can be deduced by substituting the data of the wire / temperature / humidity sensor every second.

While the present invention has been described with reference to several preferred embodiments, these embodiments are illustrative and not restrictive. It will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit of the invention and the scope of the appended claims.

100 Controller 200 Wind direction wind speed sensor
300 temperature and humidity sensor 110 wireless communication section
120 sensor input unit 130 central processing unit
140 Data storage unit 150 Control command unit
160 Wired communication unit 170 Power supply unit
400 ducts 410, 420, 430, 440 output differential pressure sensor
510 Air-conditioning equipment 530 Current measuring device
610 Wireless Temperature and Humidity Sensor 620 Wire Temperature and Humidity Sensor

Claims (9)

In the air conditioning control system in the retractable large space,
And an air conditioning control device for dividing the openable / closable space into two or more areas and controlling cooling and heating so that a constant temperature is maintained in each area,
Each air conditioner control device includes:
A wind speed sensor for detecting wind direction and wind speed;
Humidity sensor for detecting temperature and humidity; And
A controller for receiving the wind direction and the wind speed data from the wind direction wind speed sensor and receiving the temperature and humidity data from the temperature and humidity sensor and adjusting the angle of the output of the air conditioner and the ventilation hole so that the temperature of the corresponding region is constant using the received data And an air conditioning control system for controlling the air conditioning system.
The method according to claim 1,
The controller comprising:
A sensor input unit for receiving data from the wind direction sensor and the temperature / humidity sensor;
A central processing unit for analyzing and processing the received data so that a predetermined temperature is maintained in the corresponding region;
A data storage unit for storing the received data and the data analyzed by the central processing unit;
A control command unit for generating a control command for controlling the angle of the vent and the output of the air conditioner according to a result processed by the central processing unit; And
And a wired communication unit for transmitting the control command to the air conditioner and the ventilation port.
The method of claim 2,
Wherein the temperature / humidity sensor includes at least two wireless temperature / humidity sensors for transmitting data in a wireless communication manner,
Wherein the controller further comprises a wireless communication unit for communicating with the wireless temperature / humidity sensor in a wireless communication manner.
The method of claim 3,
Wherein the temperature / humidity sensor further comprises a wire temperature / humidity sensor that receives power from a commercial power source and is connected to the controller by wire to transmit data.
The method of claim 4,
The wireless temperature / humidity sensors transmit the sensed temperature and humidity data according to a first predetermined period,
Wherein the wire temperature and humidity sensor transmits temperature and humidity data sensed according to a second predetermined period shorter than the first period,
Wherein the controller uses the temperature and humidity data received from the wire / temperature / humidity sensor to derive data of a time zone during which temperature and humidity data are not received from the wireless / temperature / humidity sensors.
The method of claim 5,
Wherein the controller identifies data by mapping a trend of temperature and humidity data received from the wire / temperature / humidity sensor to temperature and humidity data received from the wireless / temperature / humidity sensors.
The method according to claim 1,
The air conditioner and the ventilation hole are connected through a duct,
The wind direction sensor includes a first wind direction wind speed sensor installed at an entrance of the duct and a second wind direction wind speed sensor installed at the wind tunnel,
The controller compares the input wind speed value sensed by the first wind speed sensor with the output wind speed sensed by the second wind speed sensor and when the ratio of the output wind speed value to the input wind speed value is less than a predetermined reference value, And judges that there is an abnormality in the duct.
The method according to claim 1,
Wherein at least two air vents are provided, and at least two air vents are connected to the air conditioner through a duct,
The air conditioning control system includes:
A differential pressure sensor installed at an inlet of the duct; And
Further comprising output differential pressure sensors provided respectively in the two or more ventilation holes,
The controller generates an alarm by determining that there is an abnormality including clogging or loss in the duct if the sum of the output differential pressure values of all the output differential pressure sensors is 50% or less of the input differential pressure value of the input differential pressure sensor. Air conditioning control system.
The method according to claim 1,
The air conditioner control system further includes a current measuring device installed in a line to which power is input to the air conditioning equipment including the air conditioner to measure a current,
Wherein the controller determines that there is an abnormality in the air conditioning facility if the current value of the current measuring device increases by a predetermined ratio or more than a predetermined reference current.

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