KR100929343B1 - Wall-mounted indoor environment monitor device and building air conditioner control system using the same - Google Patents

Abstract

A wall-mounted indoor environment monitor apparatus capable of controlling a building air conditioner apparatus in accordance with an indoor environment and a building air conditioner control system using the same. The wall-mounted indoor environment monitoring apparatus includes a display unit, an infrared ray measuring unit for measuring the moisture content and the carbon dioxide concentration contained in the air in the room by using infrared rays, the dew point temperature information mapped according to the moisture content, The dew point temperature stored in the memory is extracted based on the air conditioner connection part connected to the building air conditioner and the measured moisture amount, the dew point alarm is displayed on the display part, the carbon dioxide concentration is displayed on the display part, and the concentration of carbon dioxide And a control unit for providing the control signal to the building air conditioner through the air conditioner connection unit. Accordingly, the indoor environment such as the carbon dioxide concentration, the humidity, and the temperature can be monitored and displayed, and the building air conditioner apparatus can be controlled in accordance with the indoor environment.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wall-mounted indoor environment monitor device and a building air conditioner control system using the indoor wall environment monitoring device.

The present invention relates to a wall-mounted indoor environment monitor device and a building air conditioner control system using the same, more particularly, to a wall-mounted indoor environment monitor device capable of controlling a building air conditioner device in accordance with an indoor environment, and a building air conditioner control system .

Generally, a clock is a device that allows the user to visually identify the flow of time, and is developed and sold in various forms such as a wall clock used for hanging on a wall, a ruler clock, a desk clock, a wrist watch or a pocket watch.

Recently, as life becomes more complicated, various functions such as altimeter display function, water depth display function, azimuth display function, or temperature display function are added to various clocks in daily life to inform the user of the time, The development of functional clocks to inform information is actively being made.

On the other hand, the importance of the indoor environment is increasing as the proportion of residence in apartment buildings such as apartments increases. Particularly in the season such as winter, there is a problem that the indoor environment is adversely affected due to the environment in which the mold is inhabited due to the condensation phenomenon.

On the other hand, the general intelligent building air-conditioning system ignores the comfort of the occupant and rely only on the operator's judgment and energy saving, and it is controlled by the 2-switch system with the upper and lower limits of carbon dioxide concentration. It is difficult to do.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a wall-mounted indoor environment monitor apparatus capable of monitoring indoor environment and controlling the building air- .

Another object of the present invention is to provide a building air conditioner control system using the above-described wall-mounted indoor environment monitoring device.

In order to achieve the object of the present invention, a wall-mounted indoor environment monitoring apparatus according to an embodiment of the present invention includes a display unit, an infrared ray measuring unit for measuring a water content and a carbon dioxide concentration contained in the air in the room by using infrared rays, A memory for storing the dew point temperature information mapped according to the concentration of carbon dioxide, a memory for storing the current for each carbon dioxide concentration, an air conditioner connection unit connected to the building air conditioner, and a dew point temperature stored in the memory based on the measured moisture amount, And a controller for displaying the carbon dioxide concentration on the display unit and providing a control signal according to the carbon dioxide concentration to the building air conditioner through the air conditioner connection unit for controlling the concentration of carbon dioxide in the room. The infrared ray measuring unit may include a wave guide; An infrared source disposed at one side of the waveguide for emitting infrared rays into a space defined by the waveguide; And an infrared detector disposed on the other side of the wave guide and receiving the infrared rays and providing the infrared rays to the controller. The waveguide is formed with a waveguide space designed to be rugged so that the light emitted from the infrared source is reflected through many paths before reaching the infrared detector. The controller calculates the partial pressure of water vapor according to the ambient temperature using Equation (1) below, converts the partial pressure (Pw) into water content (W) using Equation (2) W is extracted from the memory.

[Equation 1]

Where Pw is the partial pressure of steam, T is the absolute temperature, and R is the Rankine Temperature, defined by adding 459.67 to the Fahrenheit temperature, in degrees F. The unit of steam partial pressure is pounds per square C1, C2, C3, C4, C5 and C6 are constants set according to a certain temperature range),

 &Quot; (2) "

(Here, the unit of water content W is g / kg).

In order to achieve the above-mentioned object, the building air conditioner control system according to one embodiment includes a wall-mounted indoor environment monitor device and a building air conditioner device. The wall-mounted indoor environment monitor device measures the concentration and the water content of carbon dioxide contained in the air using infrared rays, acquires the humidity through the water content, acquires the temperature, and based on the concentration, humidity and temperature information of the carbon dioxide , And outputs a control signal for controlling the operation of the building air conditioner. The building air conditioner apparatus controls the concentration, humidity, and temperature of carbon dioxide in the room to improve the indoor environment based on the control signal output from the wall-mounted indoor environment monitor device.

The wall-mounted indoor environment monitor device includes a display unit; An infrared ray measuring unit for measuring an amount of water and a concentration of carbon dioxide contained in the air in the room using infrared rays; A memory for storing a lookup table in which a dew point temperature information with respect to a moisture amount, a current according to the carbon dioxide concentration, a current according to humidity, and a current according to temperature are mapped; An air conditioner connection unit connected to the building air conditioner; And a control unit for displaying a dew point alarm on the display unit by displaying a dew point temperature stored in the memory based on the measured moisture amount, displaying the dew point alarm on the display unit, displaying a control signal according to the carbon dioxide concentration for controlling the concentration of carbon dioxide in the room, To the building air conditioner through the air conditioner connection unit. The infrared ray measuring unit may include a wave guide; An infrared source disposed at one side of the waveguide for emitting infrared rays into a space defined by the waveguide; And an infrared detector disposed on the other side of the wave guide and receiving the infrared rays and providing the infrared rays to the controller. The waveguide is formed with a waveguide space designed to be rugged so that the light emitted from the infrared source is reflected through many paths before reaching the infrared detector. The control unit calculates the partial pressure of water vapor according to the ambient temperature using Equation (1) below, converts the partial pressure (Pw) into the water amount (W) by using Equation (2) The corresponding dew point temperature is extracted from the memory.

[Equation 1]

Where Pw is the partial pressure of steam, T is the absolute temperature, and R is the Rankine Temperature, defined by adding 459.67 to the Fahrenheit temperature, in degrees F. The unit of steam partial pressure is pounds per square C1, C2, C3, C4, C5 and C6 are constants set according to a certain temperature range),

&Quot; (2) "

(Here, the unit of water content W is g / kg).

According to the wall-mounted indoor environment monitoring apparatus and the building air conditioner control system using the same, the indoor environment such as carbon dioxide concentration, humidity, and temperature can be monitored and displayed, and the building air conditioner apparatus can be controlled in accordance with the indoor environment. Accordingly, by collecting carbon dioxide concentration data over a certain period of time and controlling the operation of the building air conditioner using the collected data, it is possible to provide a pleasant indoor environment to the occupant by adjusting the concentration of carbon dioxide, the room humidity, and the room temperature .

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in more detail with reference to the accompanying drawings.

1 is a block diagram illustrating a wall-mounted indoor environment monitor apparatus according to an embodiment of the present invention. 2 is a plan view for explaining an example of the display portion shown in Fig.

1, a wall-mounted indoor environment monitoring apparatus 100 according to an embodiment of the present invention includes an infrared ray measuring unit 110, a memory 120, a temperature sensor 130, a controller 140, a display 150 A chime alarm unit 160, an air conditioner connection unit 170, and a Zigbee transmission module 180.

The infrared ray measuring unit 110 detects infrared ray transmittance through the air using infrared rays and measures the content of moisture and carbon dioxide (CO 2) contained in the air using the infrared ray transmittance, . For example, the infrared ray measuring unit 110 may include a waveguide (waveguide or waveguide) to emit infrared light using the waveguide and to measure the reaction angle of the wavelength of the reflected infrared light, To measure the amount of water in the air.

The memory 120 stores a look-up table to which dew point temperature information is mapped relative to a moisture amount.

The temperature sensor 130 measures the ambient temperature, and provides the measured temperature value to the controller 130.

The control unit 140 extracts the dew point temperature mapped to the lookup table stored in the memory 120 based on the moisture amount measured by the infrared ray measurement unit 110 and removes the water droplet displayed or displayed on the display unit 150 do.

The display unit 150 includes a dew point and current humidity display unit 510, a current temperature display unit 520, a carbon dioxide concentration display unit 530, and a time information display unit 540, as shown in FIG.

The dew point and current humidity display unit 510 displays an alarm corresponding to the dew point, for example, a water droplet on one side when the dew point temperature is checked based on the measured moisture content in the air, and the current humidity information .

The current temperature display unit 520 displays current temperature information.

The carbon dioxide concentration display unit 530 displays the current carbon dioxide concentration in the air. For example, in Fig. 2, four 7-segments are arranged to indicate the concentration of carbon dioxide up to 9,999 ppm. The carbon dioxide concentration display unit 530 may indicate whether the current air condition is GOOD, NORMAL or POOR according to the carbon dioxide concentration. The carbon dioxide concentration display unit 530 displays a fan-shaped image so that the ventilation fan can be set.

The time information display unit 540 displays year, date, day, and time information. In addition, the time information display unit 540 displays a kind of clock image so as to check whether a morning call or an alarm is set according to a user's setting.

1, the chime alarm unit 150 outputs a predetermined number of chimes in response to the control of the controller 140. [ For example, when the concentration of carbon dioxide in a room is high, when a maximum amount of outside air is introduced, a certain number of chimes can be output. Also, since the air conditioner can be operated when the indoor temperature is high, a certain number of chimes can be outputted as a signal to close the opened window. The size and output frequency of such a chimney can be set by a designer designing the wall-mounted indoor environment monitoring apparatus 100 or an administrator in a building.

The air conditioner connection unit 170 is connected to an air conditioner (not shown) and provides a control unit (not shown) of the building air conditioner with a signal for activating or inactivating the air conditioner in response to the control of the controller 140.

The ZigBee transmission module 180 provides the measured carbon dioxide concentration, humidity, and temperature information to a central control system (not shown) in the building. Accordingly, the central control system can collect and display the carbon dioxide concentration, humidity, and temperature information provided by the indoor environmental monitoring devices disposed on different layers. In addition, on the central control system side, the indoor air conditioners can be separately controlled to improve the indoor environment of each floor or different rooms.

The Zigbee transmission module 180 may provide the control unit of the building air conditioner with the measured carbon dioxide concentration, humidity, and temperature information in response to the control of the controller 140. At this time, the air conditioner connection unit 170 may be omitted from the wall-mounted indoor environment monitoring apparatus 100.

3 is a conceptual diagram illustrating a non-dispersive infrared (NDIR) gas sensing technique according to an embodiment of the present invention.

3, an infrared light source unit 114 for emitting infrared light is disposed on one side of the wave guide 112, and an infrared light detecting unit 116 is disposed on the other side of the wave guide 112. [ In FIG. 3, a part of the wave guide 112 is shown opened to easily explain the path through which the infrared light passes through the air in the wave guide 112 through diffusion, reflection, refraction, or the like.

The infrared light detecting unit 116 may include a spectral filter 116a and a gas permeable film 116b.

Typically, gases such as CO2 or water vapor absorb light at specific wavelengths in the infrared spectrum. The NDIR gas detection technique according to the present invention includes a wave guide 112 designed to flow air, a light source 114 for emitting infrared light in the air in the wave guide 112, a detector 116 for detecting the infrared ray, Lt; / RTI > Therefore, it is unnecessary to provide a separate air supply device or a gas suction device for gas sampling, thereby realizing a wall-mounted indoor environment monitor device at a lower cost.

The light passing through the waveguide 112 varies depending on the concentration of the air or the like. On the other hand, the determination of how much air is sampled for measurement may vary depending on the length of the waveguide 112.

That is, when the wave guide 112 having a relatively long path is employed in the wall-mounted indoor environmental monitoring apparatus 100, the infrared light source unit 114 that emits relatively strong infrared light is employed, The infrared light detected by the detecting unit 116 is relatively less affected by noise such as noise. As a result, a more accurate wall-mounted indoor environment monitoring apparatus 100 can be manufactured. In this embodiment, the length of the waveguide 112 is 12 cm.

3, depending on the length of the waveguide 112, the container area of the wall-mounted indoor environmental monitoring apparatus 100 is dependent. That is, the wall-mounted indoor environment monitoring apparatus 100 is also limited in width by the wave guide 112 having a predetermined length.

Since the container area of the wall-mounted indoor environment monitoring apparatus 100 is limited according to the length of the wave guide 112, the NDIR gas detection technique as shown in FIG. 4 can be considered.

4 is a conceptual diagram illustrating a non-dispersion infrared gas sensing technique according to another embodiment of the present invention.

Referring to FIG. 4, a waveguide space 113 is formed to reflect light through relatively long time and path before reaching the infrared detector 116.

For example, the waveguide space 113 is designed for storing two optical absorption path lengths of approximately 21 cm and 37 cm, which are different and independent. Despite the length of the relatively long optical path, it produced a small, rugged device (4.5 cm x 5.5 cm x 1.5 cm), which can be manufactured through the cloning technology of a gold plate polymer. The waveguide space 113 is used to measure carbon dioxide and water vapor.

That is, if the currently measured moisture amount is calculated according to the light transmittance of the infrared light passing through the waveguide space 113, it can be mapped as shown in FIG.

FIG. 5 is a graph illustrating light transmittance according to the measured moisture amount according to the present invention. FIG.

Referring to FIG. 5, when the transmittance of infrared rays is detected, a corresponding moisture amount can be obtained. Here, the above-mentioned transmittance and the above-mentioned moisture amount are nonlinearly inversely proportional.

Specifically, when the transmittance of infrared rays was approximately 93%, 88%, 83%, 78%, 74%, 72%, 68%, 66%, 64% and 63%, the water contents were 5 g / kg and 10 g / kg 15 g / kg, 20 g / kg, 25 g / kg, 30 g / kg, 35 g / kg, 40 g / kg, 45 g / kg and 50 g / kg.

On the other hand, the water content is expressed in units of g / kg and can be directly converted to dew point temperature using a preprogrammed table derived from a certain experiment. Where g / kg is defined as the weight of water per kilogram of air.

Then, a series of procedures for obtaining the water content (W) in the present invention will be described.

First, the partial pressure Pw of water vapor is calculated using the following equation (1) according to the ambient temperature.

Where Pw is the partial pressure of steam, T is the absolute temperature, and R is the Rankine Temperature, defined by adding 459.67 to the Fahrenheit temperature (F). The unit of steam partial pressure is pounds per square inch (psi). The above-mentioned C1, C2, C3, C4, C5 and C6 are constants which are set according to a certain temperature range.

In the equation (1), C1 = -10440.397, C2 = -11.29465, C3 = -0,027022355C4 = 1.289036E-5, C5 = -2.478068IE09 and C6 = 6.5459673. Where C 1 is a constant corresponding to a relatively low temperature, C 2 is a constant corresponding to a temperature higher than C 1, C 3 is a constant corresponding to a temperature higher than C 2, C 4 is a constant corresponding to a temperature higher than C 3, C5 is a constant corresponding to a temperature higher than C4, and C6 is a constant corresponding to a temperature higher than C5.

After acquiring the partial pressure of water vapor (Pw) according to Equation (1) above, the water content (W) is obtained using the following Equation (2).

Here, the unit of the water content (W) is g / kg.

The dew point temperature is obtained by using the water content (W) obtained by the above-mentioned formula (2). That is, the water content W and the corresponding dew point temperature can be stored in a memory (not shown) in the form of a look-up table as shown in Table 1 below.

As described above, the wall-mounted indoor environment monitoring apparatus according to the present invention measures the water content according to the transmittance through which infrared light is transmitted, and extracts the dew point temperature stored in the form of the look-up table based on the measured water content. Next, the extracted dew point temperature and the current temperature are compared with each other to display water droplets together with the dew point shown in FIG. 2 and the humidity information displayed on the current humidity display unit 510, or water droplets to be displayed are removed.

For example, if the current temperature is lower than the dew point temperature, water droplets are displayed because the water vapor in the air is condensed and condensed. If the current water amount is higher than or equal to the dew point temperature, the displayed water droplet is removed.

In the foregoing, the measurement of the water content using the received infrared light has been described. However, the concentration of carbon dioxide may be measured using the received infrared light. The measurement of the concentration of the above-mentioned carbon dioxide can be measured according to the Lambert-Beer's Law, and a detailed description thereof will be omitted.

6 is a block diagram illustrating a wall-mounted indoor environment monitor apparatus according to another embodiment of the present invention.

6, a wall-mounted indoor environment monitoring apparatus 200 according to another embodiment of the present invention includes a carbon dioxide measuring sensor 210, a humidity sensor 220, a temperature sensor 230, a memory 240, 250, a display unit 260, a chime alarm unit 270, an air conditioner connection unit 280, and a Zigbee transmission module 290.

The carbon dioxide measuring sensor 210 measures the carbon dioxide concentration in the building and provides the measured carbon dioxide concentration value to the controller 250.

The humidity sensor 220 measures the humidity in the building and provides the measured humidity value to the controller 250.

The temperature sensor 230 measures the temperature in the building and provides the measured temperature value to the controller 250. [

The memory 240 may store the dew point temperature information, the current according to the carbon dioxide concentration value, the current according to the humidity value, and the current according to the temperature value.

The currents according to the carbon dioxide concentration, the currents according to humidity, and the currents according to temperature can be described as the graphs shown in Figs. 7A to 7C, which will be described later.

7A is a graph for explaining currents according to carbon dioxide concentration. 7B is a graph for explaining the current per humidity. Fig. 7C is a graph for explaining currents according to temperature.

Referring to FIG. 7A, when the carbon dioxide concentration measured by the carbon dioxide measuring sensor 210 is 0 ppm to 3,000 ppm, the current value is 4 mA to 20 mA. In this embodiment, it has been described that the carbon dioxide concentration value and the current value are linear. However, the carbon dioxide concentration value and the current value may be non-linearly mapped.

Referring to FIG. 7B, when the humidity value measured by the humidity sensor 220 is 0% RH to 100% RH, the current value is 4 mA to 20 mA. In this embodiment, the case where the humidity value and the current value are linear is described. However, the humidity value and the current value may be non-linearly mapped.

Referring to FIG. 7C, when the temperature value measured by the temperature sensor 230 is 0 degrees Celsius to 50 degrees Celsius, the current value is 4 mA to 20 mA. In this embodiment, the case where the temperature value and the current value are linear is described. However, the temperature value and the current value may be non-linearly mapped.

6, the control unit 250 outputs the carbon dioxide concentration, humidity, and temperature measured by the carbon dioxide measuring sensor 210, the humidity sensor 220, and the temperature sensor 230 to the display unit 260. Also, the current values corresponding to the respective carbon dioxide concentration, humidity and temperature are extracted from the memory 240, and the extracted current values are transmitted to the building air conditioner (not shown) via the air conditioner connection unit 280 as a control signal for improving the indoor environment (Not shown).

The display unit 260 includes a dew point and current humidity display unit 510, a current temperature display unit 520, a carbon dioxide concentration display unit 530, and a time information display unit 540, as shown in FIG.

The chime alarm unit 270 outputs a predetermined number of chimes in response to the control of the controller 140. [ For example, if carbon dioxide concentration, humidity, temperature, etc. are outside a certain threshold, a chime may sound.

The air conditioner connection unit 280 is connected to an air conditioner (not shown), and provides a control unit (not shown) of the air conditioner with a signal for activating or inactivating the air conditioner in response to the control of the controller 250.

The ZigBee transmission module 290 provides the measured carbon dioxide concentration, humidity, and temperature information to a central control system (not shown) in the building. Accordingly, the central control system can collect and display the carbon dioxide concentration, humidity, and temperature information provided by the indoor environmental monitoring devices disposed on different layers. In addition, on the central control system side, the indoor air conditioners can be separately controlled to improve the indoor environment of each floor or different rooms.

Meanwhile, the Zigbee transmitting module 290 may provide the measured carbon dioxide concentration, humidity, and temperature information to the controller of the building air conditioner in response to the control of the controller 250. At this time, the air conditioner connection unit 280 may be omitted from the wall-mounted indoor environment monitoring device 200.

8 is a block diagram illustrating a building air conditioner control system according to an embodiment of the present invention.

Referring to FIG. 8, a building air conditioner control system according to an embodiment of the present invention includes an indoor environment monitoring device 100 and a building air conditioner device 300.

The indoor environment monitoring apparatus 100 measures and displays the concentration of carbon dioxide in the room, the humidity of the room, and the temperature of the room, and when the concentration of the CO2 is outside the predetermined critical range based on the measured carbon dioxide concentration, humidity, And outputs the signals to the indoor unit 300 for improving the indoor environment.

The connection between the indoor environment monitoring device 100 and the building air conditioner device 300 may be connected through an RS-232C communication method or an RS-485 communication method. The RS-232C communication method is one of a connection standard between a computer and an external device specified by the American Electronics Industry Association (EIA), and is generally referred to as a serial port. RS-485 is also the same as RS-232C, but the cable distance can be longer than RS-232C, and signals can be transmitted at higher speed.

The signal for improving the indoor environment includes a first signal (CI) for improving the carbon dioxide concentration value, a second signal (HI) for improving the humidity, and a third signal (TI) for improving the temperature.

In this embodiment, the first signal CI may be a current value according to the carbon dioxide concentration, as shown in FIG. 7A. For example, if the carbon dioxide concentration is 3,000 ppm, the first signal CI is 20 mA, and if the carbon dioxide concentration is 1,500 ppm, the first signal CI is 10 mA.

In this embodiment, the second signal HI may be a current value according to humidity, as shown in FIG. 7B. For example, if the humidity is 100% RH, the second signal HI is 20mA, and if the humidity is 50% RH, the second signal HI is 10mA.

In the present embodiment, the third signal TI may be a current value according to temperature, as shown in FIG. 7C. For example, if the temperature is 50 degrees Celsius, the third signal TI is 20 mA, and if the temperature is 25 degrees Celsius, the third signal TI is 10 mA.

The building air conditioner apparatus 300 is operated based on the first to third signals CI, HI, and TI provided from the indoor environment monitoring apparatus 100.

For example, when the first signal CI having a relatively large current value is inputted, the building air conditioner apparatus 300 maximizes the inflow of outside air to lower the concentration of carbon dioxide because the concentration of carbon dioxide in the room is high. Can be performed.

When the second signal HI having a relatively large current value is input, the humidity of the room is high, so that the building air conditioner apparatus 300 can perform the dehumidifying operation for lowering the humidity of the room. On the other hand, when the second signal HI having a relatively small current value is inputted, since the humidity of the room is low, the building air conditioner apparatus 300 can perform the humidification operation for increasing the humidity of the room.

When the third signal TI having a relatively large current value is input, the building air conditioner apparatus 300 can perform a cooling operation for lowering the indoor temperature because the room temperature is high. On the other hand, when the third signal TI having a relatively small current value is input, the building air conditioner 300 can perform a warm operation or a hot air operation in which the room temperature is raised because the room temperature is low.

9 is a conceptual diagram illustrating the building air conditioner apparatus 300 shown in FIG.

9, the building air conditioner apparatus 300 includes an air inlet 320, an air outlet 330, an air conditioner body 340, a filter device 350, a coil device 360, and a blower 370 .

The air inlet port 320 is provided at one side of the building air conditioner device 300 to suck outside air and the air outlet port 330 is provided at an upper portion of the building air conditioner device 300, And the air conditioner body portion 340 of the building air conditioner apparatus 300 has a plurality of suction passages through which the sucked air flows.

The filter device 350 is installed inside the body 340 of the air conditioner and filters external air sucked through the air inlet 320.

The coil device 360 is installed inside the filter device 350 to cool or heat the external air passing through the filter device 350 so that the cold or hot water is circulated by itself.

The blower unit 370 is provided in the air outlet 330 and sends outside air to the room through the coil unit 360 and maintained at a proper temperature.

A filter device 350 and a coil device 360 are installed on one side of an air intake port 320 for sucking outside air into the inside of the air conditioner body part 340 in the above-described building air conditioner device 300, The external air sucked through the filter unit 320 is filtered through the filter unit 350 and heated and cooled to a suitable temperature by the coil unit 360 and supplied to the room through the blower unit 370.

In the building air conditioner apparatus shown in FIG. 9, only the function of introducing or blocking outside air has been described. However, humidification / dehumidifying operation for raising or lowering the humidity of the room or cooling / heating operation for raising or lowering the temperature of the room It is obvious that it can be performed further.

8, the indoor environment monitoring apparatus 100 is connected to the building air conditioner apparatus 300 through a separate signal line and generates first to third signals CI, HI, and TI for improving the indoor environment Lt; / RTI > However, it is also possible to transmit the first to third signals (CI, HI, TI) for improving the indoor environment through a short-range wireless communication method such as Zigbee communication without using a separate signal line.

10 is a block diagram illustrating a building air conditioner control system according to another embodiment of the present invention.

10, a building air conditioner control system according to another embodiment of the present invention includes an indoor environment monitoring apparatus 100, a first short distance communication transmission / reception module 180, a building air conditioner apparatus 300, and a second short distance communication transmission / Gt; 310 < / RTI > In the present embodiment, the first and second local area communication transmission / reception modules include a Zigbee transmission / reception module.

The wall-mounted indoor environment monitoring apparatus 100 is connected to the first short-range communication transmission / reception module 180 and measures the amount of water contained in the air to acquire concentration and humidity of carbon dioxide, obtains a temperature, And outputs a control signal for controlling the operation of the building air conditioner 300 through the first short range communication transmission / reception module 180 based on the concentration, humidity, and temperature information.

The building air conditioner apparatus 300 is connected to the second short-range communication transmission / reception module 310 and is controlled by the second short-range communication transmission / reception module 310 via the first short- Based on the signal, the concentration, humidity, and temperature of the carbon dioxide in the room are controlled.

For example, the building air conditioner apparatus 300 sucks outside air to maintain proper temperature and humidity inside the building, and then, through a duct facility or the like, Moisture and so on.

11 is a flowchart illustrating a method of controlling a building air conditioner according to an embodiment of the present invention.

Referring to FIG. 11, as the wall-mounted indoor environmental monitoring apparatus is powered on (step S100), the concentration of indoor carbon dioxide is measured and the measured concentration of carbon dioxide is displayed (step S200).

Next, the wall-mounted indoor environment monitoring apparatus controls the operation of the building air conditioner based on the concentration value of carbon dioxide (step S300).

Next, the wall-mounted indoor environment monitor device measures indoor humidity and displays the measured indoor humidity (step S400).

Next, the wall-mounted indoor environment monitoring apparatus controls the operation of the building air conditioner based on the humidity value (step S500).

Next, the wall-mounted indoor environment monitor device measures the room temperature and displays the measured room temperature (step S600).

Next, the wall-mounted indoor environment monitoring apparatus controls the operation of the building air conditioner based on the measured indoor temperature (step S700).

Then, it is checked whether or not the wall-mounted indoor environmental monitoring apparatus is powered off (step S800). If it is determined that the power is off, the process ends. If it is checked that the power is not turned off, the process returns to step S200.

12 is a flow chart illustrating steps for controlling the operation of the building air conditioner based on the carbon dioxide concentration value shown in FIG.

11 and 12, it is checked whether the measured carbon dioxide concentration value is 800 ppm or less (step S310). If it is checked that the carbon dioxide concentration value is 800 ppm or less, <GOOD> is displayed (step S312) After transmitting the signal to the building air conditioner side (step S314), the process returns to step S400. Accordingly, the building air conditioner can block the damper so as to block the inflow of outside air.

On the other hand, the step S314 of transmitting the signal requesting the cut-off of the outside air may be omitted.

If it is checked in step S310 that the measured carbon dioxide concentration value is not 800 ppm or less, it is checked whether the measured carbon dioxide concentration value is 800 ppm to 1,200 ppm (step S316). If the measured carbon dioxide concentration value is checked from 800 ppm to 1,200 ppm, &Lt; NORMAL > (step S318), a signal requesting partial inflow of outside air is transmitted to the building air conditioner side (step S320), and then the flow returns to step S400. Accordingly, the building air conditioner can adjust the opening ratio of the damper so that outside air flows in. The aperture ratio of the damper to be adjusted may vary depending on the signal requesting the partial inflow. For example, the aperture ratio of the damper may be 20%, 50%, or 70%.

If it is checked in step S316 that the measured carbon dioxide concentration value does not belong to 800 ppm to 1,200 ppm, it is checked whether or not the measured carbon dioxide concentration value is 1,200 ppm or more (step S322). If the measured carbon dioxide concentration value is checked to be 1,200 ppm or more , <POOR> is displayed (step S324), and a signal requesting full inflow of outside air is transmitted to the building air conditioner side (step S326), and the flow returns to step S400. Accordingly, the building air conditioner can fully open the damper so that outside air can be maximally introduced. In the present embodiment, it has been described that the measured value of the carbon dioxide concentration is in the preferable range from 800 ppm to 1,200 ppm. However, the concentration value can be sufficiently changed by the programmer designing the wall-mounted indoor environmental monitoring apparatus. For example, the concentration value of carbon dioxide may be set to 700 ppm to 1,100 ppm, or may be set to 900 ppm to 1,3000 ppm, in response to a good state.

13 is a flow chart illustrating steps for controlling the operation of the building air conditioner based on the humidity value shown in FIG.

11 and 13, it is checked whether or not the humidity value is within the threshold range of predetermined humidity (step S510). If it is checked that the humidity value is within the threshold humidity range, the flow returns to step S600. For example, the critical range of the humidity may be set at 55% to 60%.

If it is checked in step S510 that the humidity value is not present in the critical range of the humidity, it is checked whether or not the humidity value is larger than the critical range of the humidity (step S520).

If it is checked in step S520 that the humidity value is larger than the critical range of the humidity, a signal requesting dehumidification is transmitted to the building air conditioner side (step S530), and then the process returns to step S600. Accordingly, the building air conditioner can start a dehumidifier for performing a dehumidification operation, for example.

If it is checked in step S520 that the humidity value is smaller than the critical range of the humidity, a signal requesting humidification is transmitted to the building air conditioner side (step S540), and then the flow returns to step S600. Accordingly, the building air conditioner can activate, for example, a humidifier that performs a humidifying operation.

14 is a flowchart illustrating steps of controlling a building air conditioner operation based on the temperature values shown in FIG.

Referring to FIGS. 11 and 14, it is checked whether or not the temperature value is within a predetermined range of the predetermined temperature (step S710). If it is checked that the temperature value is within the critical temperature range, the process returns to step S800. For example, the critical temperature range may be set at 15 degrees Celsius to 18 degrees Celsius.

If it is checked in step S710 that the temperature value does not exist in the critical range of the temperature, it is checked whether or not the temperature value is larger than the critical range of the temperature (step S720).

If it is determined in step S720 that the temperature value is greater than the critical range of the temperature, a signal for requesting a temperature lowering is transmitted to the building air conditioner side (step S730), and the flow returns to step S800. Accordingly, the building air conditioner can start the air conditioner set to a predetermined temperature, for example.

If it is checked in step S720 that the temperature value is smaller than the critical range of the temperature, a signal requesting the temperature increase is transmitted to the building air conditioner side (step S740), and then the process returns to step S800. Accordingly, the building air conditioner can start, for example, a hot air heater or a radiator.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims. You will understand.

As described above, indoor environment such as carbon dioxide concentration, humidity, temperature and the like are monitored and displayed through the display unit, so that more accurate indoor environment information can be provided to occupants in the room.

In addition, by controlling the building air conditioner apparatus in accordance with the indoor environment, a pleasant indoor environment can be provided to the occupant. For example, by collecting carbon dioxide concentration data over a certain period of time and controlling the operation of the building air conditioner using the collected data, it is possible to adjust the concentration of carbon dioxide, the room humidity, and the room temperature to provide a pleasant indoor environment to the occupant can do.

1 is a block diagram illustrating a wall-mounted indoor environment monitor apparatus according to an embodiment of the present invention.

2 is a plan view for explaining an example of the display portion shown in Fig.

3 is a conceptual diagram illustrating a non-dispersion infrared gas sensing technique according to an embodiment of the present invention.

4 is a conceptual diagram illustrating a non-dispersion infrared gas sensing technique according to another embodiment of the present invention.

FIG. 5 is a graph illustrating light transmittance according to the measured moisture amount according to the present invention. FIG.

6 is a block diagram illustrating a wall-mounted indoor environment monitor apparatus according to another embodiment of the present invention.

7A is a graph for explaining currents according to carbon dioxide concentration. 7B is a graph for explaining the current per humidity. Fig. 7C is a graph for explaining currents according to temperature.

8 is a block diagram illustrating a building air conditioner control system according to an embodiment of the present invention.

9 is a conceptual diagram illustrating the building air conditioner apparatus shown in FIG.

10 is a block diagram illustrating a building air conditioner control system according to another embodiment of the present invention.

11 is a flowchart illustrating a method of controlling a building air conditioner according to an embodiment of the present invention.

12 is a flow chart illustrating steps for controlling the operation of the building air conditioner based on the carbon dioxide concentration value shown in FIG.

13 is a flow chart illustrating steps for controlling the operation of the building air conditioner based on the humidity value shown in FIG.

14 is a flowchart illustrating steps of controlling a building air conditioner operation based on the temperature values shown in FIG.

Description of the Related Art

100, 200: a wall-mounted indoor environment monitor device 110: an infrared ray measuring unit

120, 240: memory 130, 230: temperature sensor

140, 250: a control unit 150, 260:

160, 270: Chime alarm unit 170, 280: Air conditioner connection unit

180, 290: Zigbee transmitting module 210: Carbon dioxide measuring sensor

220: Humidity sensor 300: Building air conditioner device

Claims (10)

A display section; An infrared ray measuring unit for detecting the infrared ray transmittance transmitted through the air using infrared rays and measuring the concentration of carbon dioxide contained in the air in the room; A memory for storing moisture content information relative to infrared ray transmittance information mapped in a lookup table form, a dew point temperature relative to moisture information, a current according to carbon dioxide concentration, a current according to humidity, and a current for each temperature; An air conditioner connection unit connected to the building air conditioner; And (1) extracting, from the memory, the moisture amount information corresponding to the infrared ray transmittance information as the infrared ray transmittance information is provided from the infrared ray measuring unit, and acquiring a dew point temperature corresponding to the extracted moisture amount information (2) If the infrared ray transmittance information is not provided from the infrared ray measuring unit, the partial pressure of water vapor (Pw) is calculated using Equation (1) according to the surrounding temperature And the dew point temperature stored in the memory is extracted corresponding to the converted water amount W after converting the partial pressure Pw into the water amount W by using the following equation 2 and the dew point alarm is displayed on the display unit (3) the carbon dioxide concentration measured by the infrared measuring unit is displayed on the display unit, and 4) a control unit for providing a control signal according to the carbon dioxide concentration to the building air conditioner through the air conditioner connection unit to control the concentration of carbon dioxide in the room, A device for defining an internal space as a waveguide space so that the air flows; An infrared source disposed at one side of the device for emitting infrared rays to the waveguide space; And And an infrared detector disposed on the other side of the apparatus for receiving the infrared rays and providing the infrared rays to the controller, Wherein the waveguide space defined by the apparatus is designed to be rugged so that light emitted from the infrared source is reflected through a number of paths before reaching the infrared detector. [Equation 1]

Where Pw is the partial pressure of steam, T is the absolute temperature, and R is the Rankine Temperature, defined by adding 459.67 to the Fahrenheit temperature, in degrees F. The unit of steam partial pressure is pounds per square C1, C2, C3, C4, C5 and C6 are constants set according to a certain temperature range),  &Quot; (2) &quot;

(Here, the unit of water content W is g / kg). The indoor environmental monitoring apparatus of claim 1, wherein the display unit displays one of GOOD, NORMAL, and POOR depending on the concentration of carbon dioxide. The indoor environment monitoring apparatus according to claim 1, wherein the infrared measuring unit measures the moisture content based on a transmittance of the infrared ray transmitted through the air. The humidity sensor according to claim 1, further comprising a humidity sensor for detecting the humidity of the room, Wherein the control unit displays the humidity on the display unit and provides a control signal according to the humidity to the building air conditioner through the air conditioner connection unit to control the humidity of the room. The indoor unit according to claim 1, further comprising a temperature sensor for detecting the temperature of the room, Wherein the control unit displays the temperature on the display unit and provides a control signal according to the temperature to the building air conditioner through the air conditioner connection unit for temperature control of the room. The controller controls the operation of the building air conditioner based on the concentration, the moisture content of the carbon dioxide contained in the air, the humidity is acquired through the water content, the temperature is acquired, and the concentration, humidity, A wall-mounted indoor environmental monitor device for outputting a control signal to the wall-mounted indoor environment monitor device; And And a building air conditioner device for controlling the concentration, humidity, and temperature of carbon dioxide in the room to improve the indoor environment based on the control signal output from the wall-mounted indoor environment monitor device, wherein the wall- An infrared ray measuring unit for detecting the infrared ray transmittance transmitted through the air using infrared rays and measuring the concentration of carbon dioxide contained in the air in the room; A memory for storing a current according to temperature, a current according to carbon dioxide concentration, a current according to humidity, and a current for each temperature, an air conditioner connecting part connected to the building air conditioner, and an infrared sensor connected to the infrared measuring part, (2) extracting a dew point temperature corresponding to the infrared ray transmittance information from the memory, extracting a dew point temperature corresponding to the extracted moisture amount information from the memory, and If the infrared transmittance information is not provided, The partial pressure Pw of the water vapor is calculated using the following Equation 1 and the partial pressure Pw is converted into the water content W by using the following Equation 2 and then the water partial pressure Pw corresponding to the converted water amount W is calculated (3) the carbon dioxide concentration measured by the infrared ray measuring unit is displayed on the display unit, (4) the carbon dioxide concentration control in the room is controlled, and And a control unit for providing a control signal according to the carbon dioxide concentration to the building air conditioner through the air conditioner connection unit, Wherein the infrared ray measuring unit comprises: an apparatus for defining an internal space as a waveguide space so that the air flows; an infrared ray source disposed at one side of the apparatus for emitting infrared rays to the waveguide space; A waveguide space defined by the device is designed to be rugged such that light emitted from the infrared source is reflected through a number of paths before reaching the infrared detector, Building air conditioner control system with: [Equation 1]

Where Pw is the partial pressure of steam, T is the absolute temperature, and R is the Rankine Temperature, defined by adding 459.67 to the Fahrenheit temperature, in degrees F. The unit of steam partial pressure is pounds per square C1, C2, C3, C4, C5 and C6 are constants set according to a certain temperature range), &Quot; (2) &quot;

(Here, the unit of water content W is g / kg). 7. The indoor environment monitoring apparatus according to claim 6, further comprising an air conditioner connection unit connected to the building air conditioner apparatus, Wherein the air conditioner connection unit transmits a first signal (CI) for improving the carbon dioxide concentration value, a second signal (HI) for improving the humidity, and a third signal (TI) for improving the temperature. system. delete The building air conditioner control system according to claim 6, wherein the wall-mounted indoor environment monitoring apparatus further comprises a short-range communication transmitting module for providing the carbon dioxide concentration, humidity, and temperature information to a central control system in the building. The system according to claim 9, wherein the short-range communication transmission module is a Zigbee transmission module.

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