JP2014137212A - Air conditioning control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an air conditioning control system capable of exerting an appropriate air conditioning control according to an active mass of a person or people present in a room.SOLUTION: An air conditioning control system includes: a surface-temperature detection unit 11; a carbon-dioxide-concentration detection unit 13; and an air conditioning control unit controlling a cooling operation of an indoor air conditioner 100 to adjust an indoor temperature and controlling a ventilator 110 on the basis of temperature information detected by the surface-temperature detection unit 11 and carbon dioxide concentration information detected by the carbon-dioxide-concentration detection unit 13. The air conditioning control unit increases a cooling capability and, at the same time, controls the ventilator 110 to ventilate a room as needed if a carbon dioxide concentration in the room is equal to or higher than a desired threshold while the indoor air conditioner 100 is performing the cooling operation.

Description

  The present invention relates to an air conditioning control system that operates an indoor air conditioner and a ventilation device in cooperation with each other.

  Some conventional air conditioning control systems detect the amount of human activity in a room using a camera or an infrared human sensor (hereinafter referred to as “sensor or the like”) and perform air conditioning control according to the amount of activity.

  Here, for example, when a person is exercising vigorously in a room using a running machine, the amount of activity detected by a sensor or the like may not necessarily match the actual amount of activity. In some cases, appropriate air conditioning control according to the amount of activity cannot be performed. In other words, in the air conditioning control system, air conditioning control is performed so that the indoor temperature approaches the set temperature, but the body temperature of a person who is exercising vigorously as described above is the body temperature when not exercising. Since the air conditioning control is performed at a constant set temperature, the room temperature is felt high by a person during or immediately after the exercise because the air temperature is controlled at a constant set temperature.

  In addition, in the conventional air conditioning control system, there are things that grasp the number of people in the room with sensors etc. and perform air conditioning control according to the increase or decrease of the number of people, but people are hidden in the shade of furniture etc. In this case, it is difficult to accurately grasp the number of people in the room with only one sensor or the like. Therefore, if a plurality of sensors are not used, appropriate air conditioning control according to the number of people in the room may not be performed.

  In order to solve such a problem, the conventional technique represented by the following Patent Document 1 detects the indoor carbon dioxide concentration when a person sleeps, and controls the indoor temperature based on the detected carbon dioxide concentration. In addition, the ventilation means is operated to reduce the carbon dioxide concentration.

JP 2001-108278 A

  However, in the prior art disclosed in Patent Document 1 above, air conditioning control or adjustment of room temperature or ventilation when a person's body temperature changes rapidly in a short time after adjusting the room temperature or operating the ventilation means. No specific means of temperature and ventilation control (air-conditioning control) when the number of people in the room changes rapidly after the means is operated, and it is appropriate for the amount of activity of people in the room There was a problem that it was not possible to meet the needs of realizing air conditioning control.

  This invention is made | formed in view of the above, Comprising: It aims at obtaining the air-conditioning control system which can perform suitable air-conditioning control according to the amount of activity of the person who exists indoors.

  In order to solve the above-described problems and achieve the object, the present invention is an air-conditioning control system including an indoor air conditioner and a ventilator, and the indoor air conditioner exists in an indoor air-conditioned space. A surface temperature detection unit for detecting the surface temperature of an object including a person, a carbon dioxide concentration detection unit for detecting a carbon dioxide concentration in a room, temperature information detected by the surface temperature detection unit, and the carbon dioxide concentration detection unit. An air conditioning control unit for controlling a cooling operation or a heating operation of the indoor air conditioner based on the detected carbon dioxide concentration information to adjust a room temperature and controlling the ventilator, and the air conditioning control. When the indoor air conditioner is in the cooling operation, if the indoor carbon dioxide concentration exceeds the desired threshold, the air conditioning unit strengthens the cooling capacity and controls the ventilator as necessary to perform ventilation. The above The indoor air conditioner is characterized in that if the indoor carbon dioxide concentration exceeds the desired threshold during heating operation, the heating capacity is weakened and the ventilation device is controlled as necessary to perform ventilation. To do.

  According to the present invention, since the air-conditioning operation and the ventilation operation are automatically controlled according to the carbon dioxide concentration in the room, appropriate air-conditioning control according to the amount of activity of the person existing in the room can be performed. , Has the effect.

FIG. 1 is a diagram schematically showing an air conditioning control system according to Embodiment 1 of the present invention. FIG. 2 is a diagram showing functional blocks of air conditioning control means built in the indoor air conditioner shown in FIG. FIG. 3 is a flowchart for explaining the operation of the air conditioning control system according to Embodiment 1 of the present invention. FIG. 4 is a flowchart for explaining the operation of the air conditioning control system according to Embodiment 2 of the present invention. FIG. 5 is a flowchart for explaining the operation of the air conditioning control system according to Embodiment 3 of the present invention.

  Embodiments of an air conditioning control system according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment 1 FIG.
FIG. 1 is a diagram schematically showing an air conditioning control system according to Embodiment 1 of the present invention, and FIG. 2 is a diagram showing functional blocks of air conditioning control means built in the indoor air conditioner shown in FIG. FIG. 3 is a flowchart for explaining the operation of the air conditioning control system according to Embodiment 1 of the present invention.

  FIG. 1 shows an indoor air conditioner 100 and a ventilator 110 that constitute an air conditioning control system. The indoor air conditioner 100 is connected to the ventilator 110 in a wired or wireless manner so as to be communicable. And the ventilator 110 are configured to operate in conjunction.

  The indoor air conditioner 100 is provided with an air conditioning control means 10, which detects a surface temperature detector 11 that measures the surface temperature of an object (for example, a person) existing in the room, and detects the carbon dioxide concentration in the room. A carbon dioxide concentration detection unit 13 and an air conditioning control unit 14. The surface temperature detection unit 11 is, for example, a thermopile sensor or an infrared camera, and can detect the surface temperature of a person existing not only in front of the indoor air conditioner 100 but also in the side of the indoor air conditioner 100. Thus, it has a movable mechanism.

  The temperature information detected by the surface temperature detection unit 11 and the carbon dioxide concentration information detected by the carbon dioxide concentration detection unit 13 are input to the air conditioning control unit 14, and the air conditioning control unit 14 is based on these information. Thus, the indoor air conditioner 100 is controlled so that the room temperature becomes a comfortable temperature for a person, and the ventilator 110 is controlled so that the carbon dioxide concentration in the room is less than a desired threshold value.

  For example, two threshold values (a first threshold value and a second threshold value) are set in the air conditioning control unit 14 as the carbon dioxide concentration threshold values. The first threshold is based on a temperature at which the room temperature is felt high for the person in the room due to, for example, the activity of the person in the room (for example, exercise), although there is no possibility that the person in the room may cause a headache or dizziness. It is the threshold value for indoor air conditioner control to be set. For example, if the carbon dioxide concentration detected during operation of the indoor air conditioner 100 in the cooling mode is equal to or higher than the first threshold value, there is no risk of causing headaches or dizziness, but the indoor temperature feels high to indoor people. Therefore, it is necessary to increase the cooling capacity of the indoor air conditioner 100.

  The second threshold value is set to a value larger than the first threshold value, for example, a threshold value for ventilator control that is set on the basis of a carbon dioxide concentration that may cause a headache or dizziness for a person existing in the room. For example, if the carbon dioxide concentration detected during operation of the indoor air conditioner 100 in the cooling mode exceeds the second threshold, there is a risk of causing a headache or dizziness. It is necessary to ventilate the air.

  The first threshold value and the second threshold value are set in advance at a factory or the like when the air conditioning control system is shipped, for example. In addition, since the ventilation capacity varies depending on the installation environment of the air conditioning control system, the rate of increase of the carbon dioxide concentration (the degree of increase of the carbon dioxide concentration per unit time) also changes according to the ventilation capacity. Therefore, the air-conditioning control means 10 is configured so that the first threshold value and the second threshold value can be set on the user side, and the indoor air conditioner is configured using these threshold values set by the user. You may comprise so that 100 etc. may be controlled.

  The operation will be described below. The flow of FIG. 3 shows an example of processing of the air conditioning control unit 14 during cooling operation.

  In the air conditioning control unit 14, the process in step S10 is repeated (step S10, No) until a person in the room is detected by the surface temperature detection unit 11, and when a person in the room is detected (step S10, Yes), It is determined whether or not the carbon dioxide concentration detected by the carbon dioxide concentration detection unit 13 is greater than or equal to the first threshold value (step S11).

  And in the air-conditioning control part 14, the process of step S11 is repeated until a carbon dioxide concentration shows the value more than a 1st threshold value (step S11, No), and a carbon dioxide concentration becomes more than a 1st threshold value (step) (step S11). (S11, Yes), the air conditioning control unit 14 performs control so as to increase the cooling capacity of the indoor air conditioner 100 in order to lower the indoor temperature (step S12).

  Thereafter, the air conditioning controller 14 determines whether or not the carbon dioxide concentration is greater than or equal to the second threshold (step S13). When the carbon dioxide concentration is equal to or higher than the second threshold (step S13, Yes), the air conditioning control unit 14 controls the ventilator 110 so that the carbon dioxide concentration is less than the second threshold (step S14). This ventilation control is continued until the carbon dioxide concentration becomes less than the second threshold value. As an example of control of the ventilator 110, for example, when the ventilator 110 is not in the ventilation operation, the ventilator 110 is controlled to start the ventilation operation. On the other hand, when the ventilation amount is low although the ventilation operation is being performed, the ventilation device 110 is controlled so as to increase the ventilation amount by increasing the fan speed of the ventilation device 110 or the like.

  Then, when the carbon dioxide concentration becomes less than the second threshold (No at Step S13), the air conditioning control unit 14 switches the ventilation device 110 to the initial state. That is, the air conditioning control unit 14 controls the ventilator 110 so that the ventilation operation is stopped or the normal ventilation amount is obtained.

  Here, in the air conditioning control unit 14, for example, a ratio (area ratio A) between the area of a predetermined range of the indoor space detected by the surface temperature detection unit 11 and the area of the heat source detected by the surface temperature detection unit 11 is calculated. For example, a comparison between the area ratio A1 calculated when the carbon dioxide concentration becomes equal to or higher than the first threshold and the area ratio A2 calculated after the carbon dioxide concentration becomes lower than the second threshold is performed. Done. By performing such a comparison, it is determined whether or not the area of the heat source (for example, a plurality of people) has been reduced with respect to the area detected by the surface temperature detection unit 11. For example, when the area ratio A1 is larger than the area ratio A2, it means that the number of people in the room has decreased because the area ratio A2 is smaller than the area ratio A1.

  As another calculation example, for example, the temperature difference between the room temperature detected by the surface temperature detection unit 11 and the temperature of the heat source (for example, one person) is calculated. The case where this temperature difference becomes small means that the body temperature of the person in the room has decreased due to the increased cooling capacity.

  Therefore, if the relationship between the area ratio A1 and the area ratio A2 is A1 ≦ A2 (or the temperature difference between the room temperature and the temperature of the heat source does not become small) (step S15, No), the air conditioning control unit 14 performs step S13. If the relationship between the area ratio A1 and the area ratio A2 is A1> A2 (or the temperature difference between the room temperature and the temperature of the heat source is small) (step S15, Yes), the carbon dioxide concentration Is controlled to be less than the first threshold, and the cooling capacity of the indoor air conditioner 100 is weakened to return to the normal state (step S16). By performing such air conditioning control, the carbon dioxide concentration becomes equal to or lower than the first threshold value, and it becomes possible to repeatedly perform the control after step S10.

  As described above, in the air conditioning control system according to the present embodiment, the indoor air conditioner 100 detects the surface temperature of an object including a person existing in the indoor air-conditioned space, Based on the temperature information detected by the surface temperature detection unit 11 and the carbon dioxide concentration information detected by the carbon dioxide concentration detection unit 13. And an air conditioning control unit 14 for controlling the ventilator 110 by controlling the cooling operation of 100, and the air conditioning control unit 14 is configured so that the indoor air conditioner 100 has a carbon dioxide concentration in the room during the cooling operation. When it becomes more than a desired threshold value, it is comprised so that air_conditioning | cooling capability may be strengthened and ventilation may be performed by controlling the ventilator 110 as needed. With this configuration, for example, if the indoor carbon dioxide concentration increases due to an increase in the number of people in the room, or if the indoor carbon dioxide concentration increases due to indoor exercise, the cooling operation is automatically strengthened and the ventilation operation is performed. Therefore, it is possible to provide an appropriate air-conditioning environment according to the amount of activity of people present in the room.

  The air conditioning control unit 14 also has a first threshold value for indoor air conditioner control that is set based on a temperature at which the room temperature is felt to be high for a person in the room as a desired threshold value, and a value that is greater than the first threshold value. The air conditioner control unit 14 detects the area of the predetermined range of the indoor space detected by the surface temperature detection unit 11 and the surface temperature detection unit 11. Calculating the area ratio with the area of the heat source, the first area ratio calculated when the carbon dioxide concentration is equal to or higher than the first threshold, and the second carbon dioxide concentration after the calculation of the first area ratio. When the relationship with the second area ratio calculated when the value is less than the threshold value of the first area ratio> the second area ratio, the ventilator 110 is controlled to reduce the indoor carbon dioxide concentration. Later, before increasing the cooling capacity of the indoor air conditioner 100 It is configured to return to the state. With this configuration, the indoor carbon dioxide concentration does not reach a level that adversely affects the human body, and even if the number of indoor people increases or the body temperature rises due to the activity of indoor people, it automatically air-conditions. Environmental comfort is maintained.

  The air conditioning control unit 14 controls the ventilator 110 when the temperature difference between the room temperature detected by the surface temperature detection unit 11 and the temperature of the heat source becomes small when the carbon dioxide concentration is less than the second threshold. After the indoor carbon dioxide concentration is lowered, the indoor air conditioner 100 is returned to the state before the cooling capacity is increased or the state before the heating capacity is decreased. With this configuration, the indoor carbon dioxide concentration does not reach a level that adversely affects the human body, and even if the number of indoor people increases or the body temperature rises due to the activity of indoor people, it automatically air-conditions. Environmental comfort is maintained.

  The air conditioning control unit 14 controls the ventilator 110 so that the carbon dioxide concentration is less than the second threshold when the indoor carbon dioxide concentration exceeds the second threshold, and then the indoor air conditioning. Since the apparatus 100 is configured to return to the state before the cooling capacity is increased or the condition before the heating capacity is decreased, even if the carbon dioxide concentration in the room reaches a level that adversely affects the human body, It is possible to provide a comfortable air conditioning environment by ventilation.

Embodiment 2. FIG.
In the first embodiment, the control example during the cooling operation has been described. In the second embodiment, the control example during the heating operation will be described.

  FIG. 4 is a flowchart for explaining the operation of the air conditioning control system according to Embodiment 2 of the present invention. The flow of FIG. 4 shows an example of processing of the air conditioning control unit 14 during heating operation. In the air conditioning control unit 14, the process of step S20 is repeated until a person in the room is detected by the surface temperature detection unit 11 (step S20, No), and when a person in the room is detected (step S20, Yes), It is determined whether or not the carbon dioxide concentration detected by the carbon concentration detector 13 is greater than or equal to the first threshold (step S21).

  And in the air-conditioning control part 14, the process of step S21 is repeated until a carbon dioxide concentration shows the value more than a 1st threshold value (step S21, No), and a carbon dioxide concentration becomes more than a 1st threshold value (step). (S21, Yes), the air conditioning control unit 14 performs control so as to weaken the heating capacity of the indoor air conditioner 100 in order to lower the indoor temperature (step S22).

  Thereafter, the air conditioning control unit 14 determines whether or not the carbon dioxide concentration is greater than or equal to the second threshold value (step S23). When the carbon dioxide concentration is equal to or higher than the second threshold value (step S23, Yes), the air conditioning control unit 14 controls the ventilator 110 so that the carbon dioxide concentration is less than the second threshold value (step S24). This ventilation control is continued until the carbon dioxide concentration becomes less than the second threshold value. Since the control example of the ventilation apparatus 110 here is the same as that of Embodiment 1, it abbreviate | omits description.

  When the carbon dioxide concentration becomes less than the second threshold (No at Step S23), the air conditioning control unit 14 switches the ventilator 110 to the initial state. That is, the air-conditioning control unit 14 stops the ventilation operation or controls the ventilation device 110 so that the normal ventilation amount is obtained.

  Next, as in the first embodiment, when the relationship between the area ratio A1 and the area ratio A2 satisfies A1 ≦ A2 (or the temperature difference between the room temperature and the temperature of the heat source does not become small) (No in step S25). The processes of steps S23 to S25 are repeated. When the relationship between the area ratio A1 and the area ratio A2 satisfies A1> A2 (or the temperature difference between the room temperature and the temperature of the heat source becomes small) (step S25, Yes), the air conditioning control unit 14 The ventilator 110 is controlled so that the concentration is less than the first threshold, and the heating capacity of the indoor air conditioner 100 is increased to return to the normal state (step S26). By performing such air conditioning control, the carbon dioxide concentration becomes equal to or lower than the first threshold value, and it becomes possible to repeatedly perform the control after step S20.

  As described above, in the air conditioning control system according to the present embodiment, the indoor air conditioner 100 detects the surface temperature of an object including a person existing in the indoor air-conditioned space, Based on the temperature information detected by the surface temperature detection unit 11 and the carbon dioxide concentration information detected by the carbon dioxide concentration detection unit 13. The air conditioning control unit 14 controls the ventilation device 110 while controlling the indoor temperature by controlling the heating operation of the air conditioning unit 100. The air conditioning control unit 14 has a carbon dioxide concentration in the room during the heating operation of the indoor air conditioner 100. When it becomes more than a desired threshold value, it is comprised so that a heating capability may be weakened and ventilation may be performed by controlling the ventilator 110 as needed. With this configuration, for example, when the indoor carbon dioxide concentration increases due to an increase in the number of people in the room, or when the indoor carbon dioxide concentration increases due to exercise indoors, the heating operation is automatically reduced and ventilation operation is performed. Therefore, it is possible to provide an appropriate indoor environment according to the amount of activity of people present in the room.

Embodiment 3 FIG.
In the first and second embodiments, the configuration example in the case where the indoor environment is in a normal state has been described. In the third embodiment, a control example in the case where the indoor carbon dioxide concentration has increased due to a fire or the like will be described.

  FIG. 5 is a flowchart for explaining the operation of the air conditioning control system according to Embodiment 3 of the present invention. The flow of FIG. 5 shows an example of processing of the air conditioning control unit 14 when the indoor carbon dioxide concentration increases due to a fire or the like.

  When the surface temperature detection unit 11 does not detect a person in the room (No at Step S30) and the carbon dioxide concentration does not indicate an abnormal value (No at Step S31), the air conditioning control unit 14 performs Steps S30 to S31. This process is repeated.

  On the other hand, when the surface temperature detection unit 11 does not detect a person in the room (No at Step S30) and the carbon dioxide concentration shows a value equal to or higher than the abnormal value (third threshold) (Step S31, Yes), the room There is a high possibility that the carbon dioxide concentration suddenly increased due to a fire. In this case, the air-conditioning control unit 14 outputs an alarm signal for generating an alarm sound or an alarm sound to an alarm means (not shown) provided in the indoor air conditioner 100, for example. As a result, an alarm is issued from the indoor air conditioner 100 (step S32). The abnormal value of the carbon dioxide concentration is higher than the second threshold value, and is preset at the factory or the like at the time of shipment of the air conditioning control system based on the temperature detected indoors when a fire or the like occurs. Or set by the user.

  When a person in the room is detected (step S30, Yes), the air conditioning controller 14 determines whether or not the carbon dioxide concentration detected by the carbon dioxide concentration detector 13 is equal to or higher than a first threshold ( Step S33). When the carbon dioxide concentration is equal to or higher than the first threshold value (step S33, Yes), the air conditioning control unit 14 has a state in which the temperature of the heat source detected by the surface temperature detection unit 11 is higher than a preset abnormal temperature value. It is determined whether or not to continue for a certain period (detection time) (step S34).

  The reason why the detection time is set in the air conditioning control unit 14 is that, for example, when a person existing in the room uses a lighter or the like, the heat source temperature detected by the surface temperature detection unit 11 may temporarily become high. is there. However, in such a case, if an alarm or the like is output when the temperature of the heat source exceeds the abnormal temperature value, there is a possibility that a fire is erroneously detected. In order to avoid such a false alarm, the air conditioning controller 14 is configured to issue an alarm only when the temperature of the heat source is higher than the abnormal temperature value and the temperature continues for a certain period.

  In addition, when the air-conditioning control system is installed near the cooking place, there is a possibility that a high temperature due to cooking is detected and a fire is erroneously detected. In order to avoid such a false alarm, the air-conditioning control unit 14 may be configured so that a predetermined space (such as a kitchen) in the room can be preset as a fire detection area. Further, the abnormal temperature value and the detection time may be preset at the factory when the air conditioning control system is shipped, or may be set by the user himself / herself.

  When the state in which the temperature of the heat source is higher than the abnormal temperature value continues for a certain period (step S34, Yes), the air conditioning control unit 14 warns the alarm means (not shown) provided in the indoor air conditioner 100. Alternatively, an alarm signal for generating a warning sound is output, or an alarm signal for displaying a warning on a display (not shown) provided in the indoor air conditioner 100 is output (step S37). . As for the warning display, the indoor air conditioner 100 may be provided with a display unit and characters may be displayed on the display unit. Further, the indoor air conditioner 100 is provided with a light emitting source such as a light emitting diode, and the light emitting diode blinks at a timing different from that of the normal operation or is turned on so that it is brighter than in the normal operation. It may be configured to notice.

  When the state where the temperature of the heat source is higher than the abnormal temperature value does not continue for a certain period (step S34, No), the air conditioning control unit 14 performs control to increase the cooling capacity of the indoor air conditioner 100 in order to lower the indoor temperature. Alternatively, control is performed so as to weaken the heating capacity (step S35).

  In addition, since there is a possibility that the fire cannot be detected in the initial state of the fire, the air conditioning control unit 14 has a state in which the temperature of the heat source detected by the surface temperature detection unit 11 is higher than the preset abnormal temperature value for a certain period of time. It is determined whether or not to continue (step S36).

  When the state where the temperature of the heat source is higher than the abnormal temperature value continues again for a certain period (step S36, Yes), the air conditioning control unit 14 generates a warning sound or warning sound for the indoor air conditioner 100, or displays a warning. Outputs an alarm signal to cause As a result, an alarm is displayed on the indoor air conditioner 100, or an alarm is generated from the indoor air conditioner 100 (step S37).

  When the state where the temperature of the heat source is higher than the abnormal temperature value does not continue for a certain period (step S36, No), the air conditioning control unit 14 determines whether or not the carbon dioxide concentration is equal to or higher than the second threshold (step S38). ). When the carbon dioxide concentration is equal to or higher than the second threshold (step S38, Yes), the air conditioning control unit 14 controls the ventilator 110 so that the carbon dioxide concentration is less than the second threshold (step S39). This ventilation control is continued until the carbon dioxide concentration becomes less than the second threshold value. Since the control example of the ventilation apparatus 110 here is the same as that of Embodiment 1, it abbreviate | omits description.

  When the carbon dioxide concentration is less than the second threshold (No at Step S38), the air conditioning control unit 14 switches the ventilator 110 to the initial state. That is, the air-conditioning control unit 14 controls the ventilator 110 so that the ventilation operation is stopped or the normal ventilation amount is obtained.

  Next, as in the first embodiment, when the relationship between the area ratio A1 and the area ratio A2 satisfies A1 ≦ A2 (or the temperature difference between the room temperature and the temperature of the heat source does not become small) (No in step S40). In the air conditioning control unit 14, the processes of steps S36 to S40 are repeated. When the relationship between the area ratio A1 and the area ratio A2 satisfies A1> A2 (or the temperature difference between the room temperature and the temperature of the heat source becomes small) (step S40, Yes), the air conditioning control unit 14 While controlling the ventilator 110 so that a density | concentration will be less than a 1st threshold value, the heating capability of the indoor air conditioner 100 is strengthened and it returns to a normal state (step S41). By performing such air conditioning control, the carbon dioxide concentration becomes equal to or lower than the first threshold value, and it becomes possible to repeatedly perform the control after step S30.

  As described above, the air conditioning control unit 14 of the present embodiment does not detect a person in the room based on the temperature information from the surface temperature detection unit 11, and the carbon dioxide concentration detected by the carbon dioxide concentration detection unit 13 is the first. When a value equal to or higher than a third threshold value higher than the threshold value of 2 is indicated, an alarm signal for generating an alarm sound or an alarm sound is output to the alarm means provided in the indoor air conditioner 100. . With this configuration, it is possible to detect a fire that has occurred in the room and issue an alarm.

  Further, the air conditioning control unit 14 is in a state where a person in the room is detected based on the temperature information from the surface temperature detection unit 11 and the temperature of the heat source detected by the surface temperature detection unit 11 is higher than a preset abnormal temperature value. When continuing for a certain period, an alarm signal for generating an alarm sound or an alarm sound for an alarm means provided in the indoor air conditioner 100, or an alarm display on an indicator provided in the indoor air conditioner 100 is displayed. An alarm signal to be executed is output. With this configuration, it is possible to issue an alarm without erroneously detecting a fire, and for example, the indoor carbon dioxide concentration rose without being judged as a fire in the initial fire situation, and then ventilation was performed As a result, it is possible to prevent a situation in which oxygen is supplied into the room and the fire expands.

  The air-conditioning control system according to the embodiment of the present invention shows an example of the contents of the present invention, and can be combined with another known technique without departing from the gist of the present invention. Of course, it is possible to change the configuration such as omitting a part of the range.

  As described above, the present invention is applicable to an air conditioning control system, and is particularly useful as an invention capable of performing appropriate air conditioning control in accordance with the amount of activity of a person existing in a room.

  DESCRIPTION OF SYMBOLS 10 Air conditioning control means, 11 Surface temperature detection part, 13 Carbon dioxide concentration detection part, 14 Air conditioning control part, 100 Indoor air conditioner, 110 Ventilation apparatus.

Claims (6)

An air conditioning control system including an indoor air conditioner and a ventilation device,
The indoor air conditioner is
A surface temperature detection unit for detecting the surface temperature of an object including a person existing in the indoor air-conditioned space;
A carbon dioxide concentration detector for detecting the carbon dioxide concentration in the room;
Based on the temperature information detected by the surface temperature detector and the carbon dioxide concentration information detected by the carbon dioxide concentration detector, the cooling or heating operation of the indoor air conditioner is controlled to adjust the room temperature. And an air conditioning controller for controlling the ventilation device;
With
The air-conditioning control unit increases the cooling capacity when the indoor air conditioner is in a cooling operation and the indoor carbon dioxide concentration exceeds a desired threshold, and controls the ventilation device as necessary to perform ventilation. If the indoor air conditioner has a carbon dioxide concentration in the room that exceeds the desired threshold during heating operation, the heating capacity is weakened, and ventilation is performed by controlling the ventilator as necessary. An air conditioning control system characterized by The air conditioning control unit has a first threshold value for indoor air conditioner control that is set based on a temperature at which the room temperature is perceived as high for a person in the room as the desired threshold value, and is greater than the first threshold value. A second threshold for ventilator control set to the value is set,
The air conditioning controller
The area ratio between the area of the indoor space detected by the surface temperature detection unit and the area of the heat source detected by the surface temperature detection unit was calculated, and the carbon dioxide concentration was equal to or higher than the first threshold value. The relationship between the first area ratio calculated sometimes and the second area ratio calculated when the carbon dioxide concentration is less than the second threshold after the calculation of the first area ratio is the first area ratio. > When the second area ratio is reached, after controlling the ventilator to lower the indoor carbon dioxide concentration, the indoor air conditioner is in a state before the cooling capacity is increased or before the heating capacity is weakened. The air-conditioning control system according to claim 1, wherein the air-conditioning control system is returned to the state. The air conditioning control unit has a first threshold value for indoor air conditioner control that is set based on a temperature at which the room temperature is perceived as high for a person in the room as the desired threshold value, and is greater than the first threshold value. A second threshold for ventilator control set to the value is set,
The air conditioning controller
When the temperature difference between the indoor temperature detected by the surface temperature detection unit and the temperature of the heat source when the carbon dioxide concentration is less than the second threshold value becomes small, the ventilation device is controlled to control the indoor carbon dioxide concentration. 2. The air conditioning control system according to claim 1, wherein after being lowered, the state of the indoor air conditioner is returned to a state before the cooling capacity is increased or a state before the heating capacity is decreased.   The air conditioning control unit controls the ventilator so that the carbon dioxide concentration is less than the second threshold when the indoor carbon dioxide concentration exceeds the second threshold, and then changes the state of the indoor air conditioner. The air-conditioning control system according to claim 2 or 3, wherein the air-conditioning control system is returned to a state before the cooling capacity is strengthened or a state before the heating capacity is weakened.   The air conditioning control unit is configured such that a person in the room is not detected by the temperature information from the surface temperature detection unit, and the carbon dioxide concentration detected by the carbon dioxide concentration detection unit is a third threshold value higher than a second threshold value. When the above value is indicated, an alarm signal for generating an alarm sound or an alarm sound is output to alarm means provided in the indoor air conditioner. The air conditioning control system described in.   The air conditioning control unit is configured such that a person in the room is detected by temperature information from the surface temperature detection unit, and the temperature of the heat source detected by the surface temperature detection unit is higher than a preset abnormal temperature value. When the period continues, an alarm signal for generating an alarm sound or an alarm sound for an alarm means provided in the indoor air conditioner, or an alarm display on an indicator provided in the indoor air conditioner The air conditioning control system according to any one of claims 2 to 5, wherein an alarm signal is output.

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