JP5158015B2 - Central air conditioning system - Google Patents

Description

  The present invention relates to a central air conditioning system that air-conditions a plurality of rooms in a house with one air conditioning unit.

  For example, a central air conditioning system that air-conditions a plurality of rooms in a house using one air conditioning unit such as a heat pump is known. In the central air conditioning system, an air conditioning unit and each room are connected by an air conditioning duct, and cold air or warm air generated by heat exchange in the air conditioning unit is supplied to each room via the air conditioning duct. The control device of this central air-conditioning system controls the desired set temperature for each room using the cool air or warm air sent from the air-conditioning unit.

  Even in such a central air conditioning system, it is indispensable to respond to recent energy savings. Therefore, in the case of a central air conditioning system, in order to cope with energy saving, the control device controls a comfortable temperature approximate to the set temperature in a room where a person is present among a plurality of rooms provided in a house. In a room where there is no person, it has been proposed to control the energy-saving temperature with a range of several degrees Celsius between the set temperature (see Patent Document 1).

Japanese Patent Laid-Open No. 11-294839

  However, when the temperature control is switched on the condition that a person is present or absent as in Patent Document 1, it is difficult to quickly change the temperature of the room in which the person has entered even if the person enters the absent room. It is. That is, the central air conditioning system air-conditions a plurality of rooms in a house at the same time. Therefore, in the case of a central air conditioning system, it is difficult to quickly make a room in which a person has newly entered a room comfortable while maintaining the comfort of a room in which a person is already present. On the other hand, if the comfort of a room in which a person is already present is sacrificed, for example, by stopping the air conditioning, a room in which a person has newly entered can be rapidly made comfortable. However, in the case of a central air conditioning system where maintaining comfort in multiple rooms is important, it is not desirable to sacrifice the comfort of any room.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a central air conditioning system that can quickly reduce the discomfort of a room in which a person has newly entered without impairing the comfort of a room in which a person is already present.

  According to the first aspect of the present invention, when the normal air-conditioning mode is performed in any one of the plurality of rooms, the control device shifts from the set temperature in the absence to the normal set temperature in any other room. That is, it is determined whether or not the mode is shifted to the rapid air-conditioning mode. When rapid air conditioning is performed in any of the other rooms, the control device restricts the air conditioning of the room that is performing air conditioning in the normal air conditioning mode, and cools or warms the room that is performing rapid air conditioning. Concentrate supply. Thereby, the temperature of the room in which the person newly entered can be changed rapidly without increasing discomfort in the room where the normal air conditioning is performed.

  For example, when a room A is set between a normal outside air temperature side limit temperature (28 ° C.) and a normal anti-outside air temperature side limit temperature (24 ° C.) across a set temperature (26 ° C.) during cooling, When rapid air conditioning is performed in another room B, a normal set temperature (26 ° C.) in which the boundary value on the side close to the outside air temperature to be temperature controlled is closer to the outside air temperature than the normal outside air temperature limit temperature (24 ° C.). Set to In this way, by controlling the opening / closing of the on-off valve by making the boundary value close to the outside air temperature in the room A close to the outside air temperature, the closing time of the on-off valve in the room A is advanced, so that the room B that requires rapid air conditioning is used. Is more concentrated in cold air. On the other hand, the room A does not decrease to the normal outside temperature side limit temperature (24 ° C.), but decreases to the normal set temperature (26 ° C.). Therefore, the temperature of the room A is controlled between the normal set temperature (26 ° C.) that is within the range of the normal set temperature and the normal outside air temperature side limit temperature (28 ° C.). As a result, the average temperature in the room A is 27 ° C., and does not exceed the normal outside temperature side limit temperature (28 ° C.). Accordingly, it is possible to quickly reduce discomfort in a room in which a person has newly entered without impairing the comfort of a room in which a person is already present.

  In the invention according to claim 2 or 3, when the normal air-conditioning mode is performed in any one of the plurality of rooms, the control device changes from the set temperature when absent to the normal set temperature in any other room. It is determined whether or not a transition is made, that is, whether or not a transition is made to the rapid air conditioning mode. When rapid air conditioning is performed in any of the other rooms, the control device restricts the air conditioning of the room that is performing air conditioning in the normal air conditioning mode, and cools or warms the room that is performing rapid air conditioning. Concentrate supply. Thereby, the temperature of the room in which the person newly entered can be changed rapidly without increasing discomfort in the room where the normal air conditioning is performed.

  For example, when a room A during cooling is set between a normal outside temperature side limit temperature (28 ° C.) and a normal anti-outside temperature side limit temperature (24 ° C.) with a normal set temperature (26 ° C.) interposed therebetween, When performing rapid air-conditioning in the other room B, the limit anti-air temperature side limit temperature to be temperature-controlled in the room A is set to a normal set temperature (26 ° C.) closer to the outside air temperature than the normal anti-outside air temperature limit temperature (24 ° C.). Is set. In particular, in the case of the invention described in claim 2, the limit outside temperature side limit temperature in the room A is equal to or higher than the normal outside temperature side limit temperature (28 ° C.) (for example, the limit anti-outside temperature side limit temperature is normal). The temperature obtained by adding a setting difference to (in this example, it is 30 ° C.). In this way, by controlling the opening / closing of the on-off valve by making both the limit outside temperature side limit temperature and the limit anti-outside air temperature side limit temperature in the room A close to the outside temperature, the closing time of the on / off valve in the room A is advanced, Cold air is supplied more concentratedly to the room B that requires rapid air conditioning. On the other hand, the room A does not decrease to the normal outside temperature side limit temperature (24 ° C.), but decreases to the normal set temperature (26 ° C.). Therefore, the temperature of the room A is controlled between the normal set temperature (26 ° C.) that is within the range of the normal set temperature and the normal outside air temperature side limit temperature (28 ° C.). As a result, the average temperature in the room A is 27 ° C., and does not exceed the normal outside air temperature side set temperature (28 ° C.). Further, even when the limit temperature on the outside limit side of room A is set to be higher than the limit temperature on the normal outside temperature side, the limit outside temperature side limit temperature is reached only for a short period, for example, when the first on-off valve is opened or closed. Is done. Therefore, even if the air conditioning of the room A is restricted in order to rapidly air-condition another room, the person in the room A hardly notices the temperature change, and the discomfort given to the person in the room A is reduced. .

  Thus, when the rapid air conditioning is performed in the room B, both the restricted outside air temperature side limit temperature and the restricted counter outside air temperature side temperature are shifted to the outside air temperature side in the room A as compared with the case of normal air conditioning. Therefore, even if the room A is in a comfortable air conditioning state at this time, the air conditioning to the room A is always stopped once. As a result, it is possible to perform intensive air conditioning from the beginning of the transition to the rapid air conditioning in the room B that has transitioned to the rapid air conditioning. As a result, the most unpleasant state immediately after the transition to the rapid air conditioning is quickly eliminated for the room B that requires rapid air conditioning. Accordingly, it is possible to quickly reduce discomfort in a room in which a person has newly entered without impairing the comfort of a room in which a person is already present. Furthermore, a room that requires rapid air conditioning regardless of the situation of other rooms is air-conditioned with maximum capacity when a person enters the room. Therefore, although the time to reach the comfortable temperature does not change, the period during which the temperature zone with high discomfort close to the upper limit temperature at the time of absence is reduced decreases. Therefore, the unpleasant period until the comfortable temperature is reached can be minimized.

  In the invention according to claim 3, when the normal outside air temperature side limit temperature Tc1 and the restricted outside air temperature side limit temperature Td1 are approximated, and when the normal outside air temperature side limit temperature Tc2 and the restricted outside air temperature side limit temperature Td2 are approximated When this is done, the temperature range between the limit temperature on the outside air temperature side and the counter air temperature side is the same as the normal temperature range ΔT. Further, the limit outside air temperature side limit temperature Td2 is set between the normal set temperature T and the normal anti-outside air temperature side limit temperature Tc2. When the non-control target room shifts to the rapid air conditioning mode, the control target room has a temperature between the limit outside air temperature side limit temperature Td1 and the limit anti-outside air temperature side limit temperature Td2 set only for the first temperature control. The control is executed. Therefore, even when the normal outside air temperature side limit temperature Tc1 and the restricted outside air temperature side limit temperature Td1 and the normal outside air temperature side limit temperature Tc2 and the restricted outside air temperature side limit temperature Td2 are approximated, the control target room is uncomfortable. However, it is possible to rapidly air-condition a non-control target room that requires rapid air-conditioning.

  In the invention described in claim 4, the limit anti-outside air temperature side limit temperature Td2 is set to the current temperature of the room to be controlled in which a person is present. The restricted outside air temperature side limit temperature Td1 which is the temperature on the outside air temperature side in this control target room is set to a range of the normal temperature range ΔT from the restricted anti-outside air temperature side limit temperature Td2. As a result, the limit outside air temperature side limit temperature Td1 of the room where the person is present is within the range of the normal temperature range ΔT from the normal set temperature T even if the limit temperature approaches the outside air temperature. That is, in the case of cooling, the temperature of the room is only a few degrees higher than the normal outside air temperature limit temperature Tc1 at the highest. For this reason, even when a room is rapidly air-conditioned, it is difficult for a person in another room to notice that the temperature has exceeded the outside temperature limit temperature Tc1. Therefore, even when performing rapid air conditioning, discomfort in other rooms can be reduced.

  According to the fifth aspect of the present invention, even when rapid air-conditioning is performed in another room, the opening / closing interval of the on-off valve is the same as in normal temperature control. Therefore, it is not necessary to increase the number of opening / closing operations of the opening / closing valve, and the control can be facilitated.

It is a schematic diagram which shows the house which applied the central air-conditioning system by 1st Embodiment of this invention, and is a figure which shows the state in which the person is occupying the room A The schematic diagram which shows the house which applied the central air-conditioning system by 1st Embodiment of this invention The block diagram which shows the central air conditioning system by 1st Embodiment of this invention. It is the schematic which shows the relationship between time and temperature in the central air-conditioning system by 1st Embodiment of this invention, (A) shows the normal setting temperature at the time of cooling, and the setting temperature at the time of absence, (B) is a control object room. Shows temperature change in rapid air-conditioning mode and normal air-conditioning mode during cooling Schematic diagram showing control range of normal set temperature and absent set temperature during cooling and heating Schematic which shows the flow of the whole process of the central air conditioning system by 1st Embodiment of this invention. Schematic which shows the flow of the air-conditioning control process of the room A in the central air-conditioning system by 1st Embodiment of this invention. Schematic which shows the flow of the person detection process of the room A in the central air conditioning system by 1st Embodiment of this invention. Schematic which shows the flow of the process at the time of absence of the room A in the central air conditioning system by 1st Embodiment of this invention. Schematic which shows the flow of the air-conditioning mode confirmation process of the room A in the central air-conditioning system by 1st Embodiment of this invention. Schematic which shows the flow of the rapid air-conditioning mode transfer process of the room A in the central air-conditioning system by 1st Embodiment of this invention. Schematic which shows the flow of the normal air-conditioning mode process of the room A in the central air-conditioning system by 1st Embodiment of this invention. Schematic which shows the temperature change of the room A in the central air conditioning system by 1st Embodiment of this invention, and the room C Schematic which shows the flow of the person detection process of the room A in the central air conditioning system by 2nd Embodiment. Schematic which shows the flow of the person detection process of the room A in the central air conditioning system by 2nd Embodiment. Schematic which shows the flow of the normal air-conditioning mode process of the room A in the central air-conditioning system by 2nd Embodiment. Schematic diagram showing the range of temperature change during air conditioning stop flag “ON” and air conditioning restriction flag “ON” during cooling and heating Schematic which shows the temperature change of the room A in the central air conditioning system by 2nd Embodiment, and the room C Schematic which shows the temperature change of the room A in the central air conditioning system by 2nd Embodiment, and the room C

Hereinafter, a plurality of embodiments of a central air-conditioning system according to the present invention will be described with reference to the drawings. Note that, in a plurality of embodiments, substantially the same components are denoted by the same reference numerals, and description thereof is omitted.
(First embodiment)
First, the configuration of the central air conditioning system according to the first embodiment of the present invention will be described. The central air conditioning system 10 is provided in a house 11 having a plurality of rooms A, B, C, and D as shown in FIGS. 1 and 2. Here, for simplicity of explanation, a house 11 having four rooms A to D will be described as an example. As shown in FIGS. 1 to 3, the central air conditioning system 10 includes an air conditioning unit 12, air conditioning ducts 21 to 24, on-off valves 31 to 34, and temperature sensors 41 provided in four rooms A to D, respectively. -44 and human detection sensors 51-54, and a control device 60.

  The air conditioning unit 12 includes, for example, an outdoor unit and an indoor unit, and includes a known heat exchanger such as a heat pump. Thereby, the air conditioning unit 12 supplies cold air or warm air to each of the rooms A to D. The air conditioning duct 21 connects the air conditioning unit 12 and the room A. Similarly, the air conditioning duct 22 connects the air conditioning unit 12 and the room B, the air conditioning duct 23 connects the air conditioning unit 12 and the room C, and the air conditioning duct 24 connects the air conditioning unit 12 and the room D. Room A-D side of each air-conditioning duct 21-24 forms air outlets 25-28 from which the cool air or warm air supplied from air-conditioning unit 12 blows off, respectively. The on-off valves 31 to 34 are provided in the air conditioning ducts 21 to 24, respectively. That is, the on-off valve 31 opens and closes the air-conditioning duct 21, the on-off valve 32 opens and closes the air-conditioning duct 22, the on-off valve 33 opens and closes the air-conditioning duct 23, and the on-off valve 34 opens and closes the air-conditioning duct 24.

  The control device 60 is configured by a microcomputer including, for example, a CPU, a ROM, and a RAM, and comprehensively controls the central air conditioning system 10 according to a computer program stored in the ROM. The control device 60 is connected to the air conditioning unit 12 and the on-off valves 31 to 34 described above. The air conditioning unit 12 switches between generating cool air and warm air according to an instruction from the control device 60, and changes the generation amount. Each on-off valve 31 to 34 opens or closes the corresponding air conditioning duct 21 to 24 according to an instruction from the control device 60.

  The control device 60 is connected to temperature sensors 41 to 44 provided in the rooms A to D. The temperature sensor 41 detects the temperature of the room A and outputs the detected temperature to the control device 60 as an electrical signal. Similarly, the temperature sensor 42 outputs the detected temperature of the room B as an electrical signal to the control device 60, the temperature sensor 43 outputs the detected temperature of the room C as an electrical signal to the control device 60, and the temperature sensor 44 detects the temperature. The temperature of the room D is output to the control device 60 as an electrical signal. Moreover, the control apparatus 60 is connected to the person detection sensors 51-54 provided in each room AD. As shown in FIG. 1, the human detection sensor 51 detects the presence or absence of a person 70 in the room A using, for example, infrared rays or images, and outputs the detected presence or absence of the person 70 to the control device 60 as an electrical signal. Similarly, the human detection sensor 52 outputs the detected presence / absence of the person 70 in the room B to the control device 60 as an electric signal, and the human detection sensor 53 outputs the detected presence / absence of the person 70 in the room C to the control device 60 as an electric signal. The person detection sensor 54 outputs the detected presence / absence of the person 70 in the room D to the control device 60 as an electrical signal.

  Based on the presence or absence of the person 70 for each room A to D detected by the human detection sensors 51 to 54 and the temperature for each room A to D detected by the temperature sensors 41 to 44, the control device 60 controls each air conditioning duct. The opening degree of the on-off valve 31-34 which opens and closes 21-24 is adjusted. Thus, the control device 60 controls the temperature for each of the rooms A to D based on the presence / absence of the person 70 and the temperature.

Next, the operation of the central air conditioning system 10 configured as described above will be described.
(Air conditioning mode)
The control device 60 is either a normal air conditioning mode for performing normal air conditioning, an energy saving air conditioning mode for performing energy saving air conditioning, or a rapid air conditioning mode for performing rapid air conditioning depending on the presence or absence of a person 70 in the rooms A to D of the house 11. Drive in. In the normal air conditioning mode, each of the rooms A to D is controlled to a preset normal set temperature T as shown in FIG. In the energy saving air-conditioning mode, each of the rooms A to D is controlled to a preset temperature t that is set in advance and is closer to the outside air temperature than the normal air-conditioning. For example, when the normal set temperature T is set to 25 ° C. during cooling, the absent set temperature t is set to 28 ° C. or the like having a smaller load and close to the outside air temperature. On the other hand, when the normal set temperature T is set to 25 ° C. during heating, the absent set temperature t is set to 22 ° C., which is closer to the outside air temperature.

  In the rapid air-conditioning mode, for example, as shown in FIG. 4B, the room A in which the person 70 is detected is concentrated in order to quickly shift from the absent set temperature t to the preset normal set temperature T. Air-conditioned. As a result, the room A that is rapidly air-conditioned moves to the normal set temperature T more quickly than the normal air-conditioning indicated by the broken line as shown by the solid line in FIG. On the other hand, when the room A is rapidly air-conditioned, the cold air or warm air generated by the air conditioning unit 12 is intensively supplied to the room A. As a result, the temperature of the room A quickly shifts to the normal set temperature T as shown by the solid line in FIG. On the other hand, in the room B, the room C, and the room D other than the room A, the air conditioning is temporarily restricted as the room A is rapidly air-conditioned. In FIG. 4, an average temperature change in the rooms A to D is shown for simplicity of explanation.

  When the room A is in the normal air conditioning mode, the controller 60 sets the temperature of the room A to the normal outside air temperature side limit temperature Tc1 close to the outside air temperature with the normal set temperature T interposed therebetween, and the normal anti-outside air temperature side limit temperature Tc2 far from the outside air temperature. Is controlled to a normal temperature range ΔT. For example, in the case of cooling, if the normal set temperature T is 25 ° C. as shown in FIG. 5, the normal outside air temperature side limit temperature Tc 1 is set to 26 ° C., and the normal non-outside air temperature side limit temperature Tc 2 is set to 24 ° C. In the case of heating, for example, if the normal set temperature T is 25 ° C., the normal outside air temperature side limit temperature Tc 1 is set to 24 ° C., and the normal non-outside air temperature side limit temperature Tc 2 is set to 26 ° C. The control device 60 controls the temperature of the room A within the normal temperature range ΔT between the normal outside air temperature side limit temperature Tc1 and the normal anti-outside air temperature side limit temperature Tc2 across the normal set temperature T.

  For example, in the case of cooling in the normal air conditioning mode, when the temperature of the room A reaches the normal outside air temperature side limit temperature Tc1 = 26 ° C., the control device 60 opens the on-off valve 31 of the air conditioning duct 21 and supplies cold air to the room A. . As a result of supplying the cold air, when the temperature of the room A decreases to the normal outside temperature side limit temperature Tc2 = 24 ° C., the control device 60 closes the on-off valve 31 of the air conditioning duct 21 and stops the supply of the cold air to the room A. To do. Thereby, the temperature of the room A is controlled to the normal set temperature T = 25 ° C. on average. Similarly, in the case of heating, when the temperature of the room A reaches the normal outside air temperature side limit temperature Tc1 = 24 ° C., the control device 60 opens the on-off valve 31 of the air conditioning duct 21 and supplies warm air to the room A. As a result of supplying the warm air, when the temperature of the room A reaches the normal outside temperature side limit temperature Tc2 = 26 ° C., the control device 60 closes the on-off valve 31 of the air conditioning duct 21 and stops supplying the warm air to the room A. To do. Thereby, the temperature of the room A is controlled to the normal set temperature T = 25 ° C. on average. The same applies to the rooms B to D other than the room A. The temperature of the room A is an example for simplifying the explanation, and the temperature difference from the normal set temperature T may be changed between the side close to the outside air temperature and the side far from the outside air temperature. The temperature difference from the normal set temperature T may be changed between heating and heating.

  Further, when the room A is in the energy saving air conditioning mode, the control device 60 sets the temperature of the room A to the outside outside temperature side limit temperature tc1 that is close to the outside temperature across the set temperature t at the time of absence and the outside temperature outside the outside temperature. Control is performed in the absence temperature range Δt between the temperature side limit temperature tc2. For example, in the case of cooling, if the normal set temperature T is 25 ° C., the absent set temperature t is set to 30 ° C., the absent outside temperature side limit temperature tc 1 is 31 ° C., and the absent anti-outside temperature side limit temperature tc 2 is 29 ° C. Set to ° C. In the case of heating, for example, if the normal set temperature T is 25 ° C., the absent set temperature t is set to 20 ° C., the absent outside air temperature side limit temperature tc 1 is 19 ° C., and the absent anti-outside air temperature side limit temperature tc 2. Is set to 21 ° C. or the like. Thereby, the temperature of the room A is controlled during the absent temperature range Δt when in the energy saving air conditioning mode. As a result, the load is reduced in the energy saving air conditioning mode compared to the normal air conditioning mode. The temperature in the room A is an example for simplifying the description.

(Overall processing)
First, the overall processing flow of the central air conditioning system 10 will be described with reference to FIG.
When the central air conditioning system 10 is powered on, the control device 60 executes an air conditioning unit activation process that activates the air conditioning unit 12 (S100). When the air conditioning unit 12 is activated, the control device 60 performs a person detection process for detecting the presence or absence of the person 70 for each of the rooms A to D (S200). In the person detection process, it is detected whether or not there is a person 70 in any of the rooms A to D. The control device 60 detects the presence or absence of the person 70 for each room A to D based on the electrical signal output from the person detection sensors 51 to 54 provided for each room A to D.

  The control device 60 sets the occupancy flag of the person 70 to “on” in the manned room where the person 70 is detected in S200, and performs normal air conditioning for controlling the manned room to the normal set temperature T. Processing is executed (S300). On the other hand, the control device 60 executes the energy-saving air-conditioning process for performing the energy-saving air-conditioning process for controlling to the set temperature t in the absence in the unmanned room where the person 70 is not detected in S200 (S400). And if the normal air-conditioning process in S300 and the energy-saving air-conditioning process in S400 are performed, the control apparatus 60 will transfer to each room air-conditioning control process which controls temperature separately for each room AD (S500-S800). The control device 60 repeats each room air conditioning control process of S500 to S800 until the power supply of the central air conditioning system 10 is turned off.

(Each room air conditioning control process)
Next, the flow of each room air conditioning control process will be described with reference to FIG.
Here, the flow of the air-conditioning control process for the room A in S500 will be described based on FIG. Note that the air conditioning control process for room B in S600, the air conditioning control process for room C in S700, and the air conditioning control process for room D in S800 are all substantially the same as the air conditioning control process for room A, and will not be described. To do.

  When the air conditioning control process for room D in S800 is completed, control device 60 returns to S500 and proceeds to the air conditioning control process for room A. In the air conditioning control process for room A, control device 60 executes a person detection process for detecting the presence or absence of person 70 in room A, which is the control target room (S510). The control device 60 detects the presence or absence of the person 70 in the room A based on the electrical signal from the person detection sensor 51 in the room A, as in S200.

  When the person 70 is not detected in the room A in S510 (S510: No), the control device 60 proceeds to the absence process (S520). On the other hand, when the person 70 is detected in the room A in S510 (S510: Yes), the control device 60 executes an air conditioning mode confirmation process for confirming the air conditioning mode of the room A (S530). Here, when the person 70 is detected in the room A in S510 and the air conditioning mode confirmed in S530 is the normal air conditioning mode (S540), the control device 60 shifts to the normal air conditioning mode processing for continuing the normal air conditioning mode. (S550). That is, when the air-conditioning mode confirmed in S530 is the normal air-conditioning mode, the room A is continuously occupied by a person 70 and is controlled to the normal set temperature T by the normal air-conditioning mode. Therefore, the control device 60 executes normal air conditioning mode processing for maintaining the normal air conditioning mode.

  In contrast, when the person 70 is detected in the room A in S510 and the air-conditioning mode confirmed in S530 is the rapid air-conditioning mode (S560), the control device 60 returns to S600 of the entire flow shown in FIG. . That is, when the air-conditioning mode confirmed in S530 is the rapid air-conditioning mode, the room A is continuously air-conditioned. Therefore, the control device 60 shifts to the control of the room B in S600 while maintaining the air conditioning of the room A in the rapid air conditioning mode. Further, when the person 70 is detected in the room A in S510 and the air conditioning mode confirmed in S530 is the energy saving air conditioning mode (S580), the control device 60 switches the operation from the energy saving air conditioning mode to the rapid air conditioning mode. The process proceeds to the migration process (S590). That is, when the air-conditioning mode confirmed in S530 is the energy-saving air-conditioning mode, the room A is controlled to the normal set temperature T from the state in which the load is lower than the normal set temperature T and the set temperature t in the absence is close to the outside air temperature. It is in the stage of transition to the state. Therefore, the control device 60 executes the rapid air-conditioning mode transition process to switch the operation from the energy saving air-conditioning mode to the rapid air-conditioning mode. When controller 60 completes the process for room A by executing any of the absence process in S520, the normal air conditioning mode process in S550, or the rapid air conditioning mode transition process in S590, the process proceeds to the process for room B in S600. Transition.

  In the human detection process in S510, the control device 60 determines whether or not the human detection sensor 51 in the room A has reacted as shown in FIG. 8 (S511). Then, when the human detection sensor 51 reacts in S511, the control device 60 determines that the person 70 is in the room A and sets the occupancy flag for the room A to “ON” (S512), and proceeds to S530. To do. In addition, when the human detection sensor 51 does not react in S511, the control device 60 determines that no person 70 is present in the room A, and proceeds to S520.

(Out-of-office processing)
Based on FIG. 9, the flow of the absence process in S520 described above will be described.
When the controller 60 determines that no person is present in the room A in the person detection process in S510, the controller 60 executes the occupancy flag confirmation process for determining whether or not the occupancy flag for the room A is “ON” ( S521). The occupancy flag indicates the presence of the person 70 in the room A. When the occupancy of the person 70 is confirmed in the room A, it is turned “ON” in S300, and in the person detection process in S510, the room A is set. Also turned on when the presence of the person 70 is confirmed. Here, in the absence process, since it is determined that the person 70 is absent in the room A in the person detection process in S510, the control device 60 sets the occupancy flag to “OFF” (S522). That is, if the presence of the person 70 is confirmed in the room A first, but the person 70 leaves the room A after that, the control device 60 sets the presence flag for the room A to “OFF” in S522. .

  When the presence flag of the room A is set to “off” in S522, the control device 60 sets the normal air conditioning flag for the room A to “off” (S523). The normal air conditioning flag is turned “ON” when normal air conditioning needs to be performed in the room to be controlled. However, when the person 70 is absent in the room A to be controlled described here, it is not necessary to continue the normal air conditioning of the room A. For this reason, the control device 60 sets the occupancy flag of the room A in S522 to “off” and also sets the normal air conditioning flag of the room A to “off”. Further, the control device 60 turns off the rapid air conditioning flag of the room A. When the person 70 is absent in the room A, the room A shifts to an energy saving air conditioning process corresponding to the absence. Therefore, the control device 60 sets the normal air conditioning flag for the room A to “off” and also sets the rapid air conditioning flag to “off”.

  When the controller 60 determines that the occupancy flag of the room A is “off” in S521 (S521: No), or sets the rapid air-conditioning flag to “off” in S524, the non-control target room other than the room A It is determined whether or not the rapid air-conditioning flag is “ON” (S525). When the air conditioning control process for the room A is executed in S500 shown in FIG. 6, the room A is a controlled room, and the rooms B to D other than the room A are non-controlled rooms. The control device 60 determines whether or not the rapid air-conditioning flag is “ON” in any of these non-control target rooms. When there are a plurality of rooms A to D as in the house 11, the air conditioning state is different for each room. Therefore, the control device 60 determines whether or not rapid air conditioning is performed in any of the rooms BD other than the room A as described above.

  When the rapid air-conditioning flag is “ON” in any of the non-control target rooms in S525 (S525: Yes), the control device 60 closes the air-conditioning duct 21 connected to the room A with the opening / closing valve 31 (S526). As a result, the air conditioning in the room A is stopped, and the supply of cold air or warm air to other rooms that are rapidly air-conditioned is promoted. On the other hand, when determining that the rapid air-conditioning flag is not “ON” in any of the non-control target rooms in S525, that is, “OFF” (S525: No), the control device 60 acquires the temperature of the room A (S527). . The control device 60 acquires the temperature of the room A from the temperature sensor 41 provided in the room A. And the control apparatus 60 compares the temperature of the room A acquired by S527 with the preset temperature t at the time of absence of the room A, and controls the room A to the preset temperature t at the time of absence. The control device 60 controls the room A to the set temperature t when absent by opening and closing the opening / closing valve 31 of the air conditioning duct 21.

  When the air conditioning duct 21 connected to the room A is closed with the on-off valve 31 in S526, or the room A is controlled to the set temperature t when absent in S528, the control device 60 ends the process for the room A, and the room B in S600. Shift to air conditioning control.

(Air conditioning mode confirmation process)
Next, the details of the flow of the air conditioning mode confirmation process in S530 of FIG. 7 will be described based on FIG.
When determining that the person 70 is in the room A in the person detection process in S510, the control device 60 determines whether or not the normal air conditioning flag of the room A is “ON” (S531). When the control device 60 determines that the normal air conditioning flag of the room A is “ON” (S531: Yes), the control device 60 proceeds to S540 and puts the room A into the normal air conditioning mode in order to continue the normal air conditioning of the room A. maintain. On the other hand, when determining that the normal air conditioning flag of the room A is not “ON” in S531 (S531: No), the control device 60 determines whether or not the temperature of the room A is within the normal temperature range ΔT (S532). ). The control device 60 acquires the temperature of the room A from the temperature sensor 41 of the room A. Then, the control device 60 determines whether or not the acquired temperature is within the normal temperature range ΔT, that is, between the normal outside air temperature side limit temperature Tc1 and the normal anti-outside air temperature side limit temperature Tc2.

  When the control device 60 determines that the temperature of the room A is within the normal temperature range ΔT (S532: Yes), the control device 60 sets the normal air conditioning flag for performing the normal air conditioning for the room A to “ON” (S533). The rapid air-conditioning flag for performing rapid air-conditioning on A is set to “OFF” (S534). When the normal air conditioning flag for the room A is turned “ON” in S533 and the rapid air conditioning flag for the room A is turned “OFF” in S535, the control device 60 proceeds to S540 and maintains the room A in the normal air conditioning mode.

  When determining that the temperature of the room A is not within the normal temperature range ΔT in S532 (S532: No), the control device 60 determines whether or not the rapid air-conditioning flag of the room A is “ON” (S535). . When the temperature of the room A is not within the normal temperature range ΔT, rapid air conditioning is required to shift the room A to the normal set temperature T. In this case, it is determined that rapid air conditioning is required for the room A in the immediately preceding process, and if the rapid air conditioning flag is “ON” for the room A, the room A has already entered the rapid air conditioning mode, and again There is no need to turn on the rapid air conditioning flag. Therefore, the control device 60 determines whether or not the rapid air-conditioning flag of the room A is “ON” in S535, and if the rapid air-conditioning flag is “ON” (S535: Yes), it is in the rapid air-conditioning mode. Determination is made and the process proceeds to S560. Further, if the rapid air-conditioning flag is not “ON” (S535: No), the control device 60 determines that it is in the energy saving air-conditioning mode, proceeds to S580, and performs rapid air-conditioning mode in S590 to rapidly air-condition the room A. Transition to the migration process.

(Rapid air-conditioning mode transition processing)
The flow of the rapid air-conditioning mode transition process will be described based on FIG.
When the rapid air conditioning flag of the room A is not “ON” in S535 shown in FIG. 10, the control device 60 proceeds to the rapid air conditioning mode transition process as described above. When the controller 60 confirms that the person 70 has entered the room A in S510, the controller 60 turns on the occupancy flag for the room A (S591). Then, in order to shift the room A to the rapid air conditioning mode, the control device 60 turns on the rapid air conditioning flag for the room A (S592). Further, the control device 60 fully opens the on-off valve 31 of the air conditioning duct 21 connected to the room A in order to perform rapid air conditioning on the room A (S593).

(Normal air conditioning mode processing)
The normal air conditioning mode process will be described based on FIG.
When it is determined in S531 shown in FIG. 10 that the normal air conditioning flag of the room A is “ON” (S531: Yes), the control device 60 determines that the temperature of the room A is within the normal temperature range ΔT in S532. When it is determined (S532: Yes), the routine proceeds to normal air conditioning mode processing.

  When the controller 60 determines that the room A is the normal air conditioning mode process in the air conditioning mode confirmation process shown in FIG. 10, the controller 60 acquires the temperature of the room A (S551). The control device 60 acquires the temperature of the room A from the temperature sensor 41 provided in the room A. When the temperature of the room A is acquired in S551, the control device 60 determines whether or not there is a non-control target room whose rapid air-conditioning flag is “ON” (S552). That is, the control device 60 determines whether or not there is a room in which the rapid air-conditioning flag is “on”, that is, in which any of the rooms B to D that are non-control target rooms other than the room A that is the control target room is subjected to rapid air conditioning. Determine whether. For example, when a person 70 is present in the room A, another person 70 may enter the other rooms B to D. When the person 70 is present only in the room A, the room A is air-conditioned in the normal air-conditioning mode, and the other rooms B to D are air-conditioned in the energy-saving air-conditioning mode. Here, when another person 70 enters the rooms B to D, the rooms B to D in which the person 70 enters enter the rapid air conditioning mode. Therefore, when the room A, which is the control target room, is in the normal air conditioning mode, the control device 60 determines whether there is a room in which rapid air conditioning is performed among other non-control target rooms.

  When determining that there is a room with the rapid air-conditioning flag “ON” in S552 (S552: Yes), the control device 60 extracts a room in which rapid air-conditioning is performed among the rooms B to D that are non-control target rooms. (S553). Here, it is assumed that rapid air conditioning is performed in the room C as an example. When the controller 60 extracts the room in which the rapid air conditioning is performed, the controller 60 acquires the temperature (room temperature) of the extracted room assuming that the rapid air conditioning is performed (S554). That is, the control device 60 acquires the temperature of the room C from the temperature sensor 43 provided in the room C. The control device 60 determines whether or not there is a room whose temperature is closer to the outside air temperature than the normal outside air temperature side limit temperature Tc1 of the room A that is the control target room in the extracted room (S555). That is, the control device 60 compares the extracted temperature of the room C with the normal outside air temperature side limit temperature Tc1 of the room A that is the room to be controlled. Then, it is determined whether or not the temperature of the room C is closer to the outside air temperature than the normal outside air temperature side limit temperature Tc1 of the room A. For example, the control device 60 determines whether or not the temperature of the room C is higher than the normal outside air temperature side limit temperature Tc1 of the room A during cooling, and the temperature of the room C is the normal outside air temperature side of the room A during heating. It is determined whether or not the temperature is lower than the limit temperature Tc1.

  When the controller 60 determines that the extracted room has a temperature room that is closer to the outside air temperature than the normal outside air temperature side limit temperature Tc1 of the room A (S555: Yes), the temperature control restriction flag for the room A that is the room to be controlled. Is turned on (S556). That is, when the temperature of the extracted room C is closer to the outside air temperature than the normal outside air temperature side limit temperature Tc1 of the room A, the control device 60 turns on the temperature control restriction flag for the room A. For example, the control device 60 determines that the temperature of the room C is higher than the normal outside air temperature side limit temperature Tc1 of the room A during cooling, and the temperature of the room C is the normal outside air temperature limit of the room A during heating. When the temperature is lower than the temperature Tc1, the temperature control restriction flag of the room A is turned “ON”.

  Then, the control device 60 changes the boundary value Bf on the side farther from the outside air temperature in the range for controlling the temperature of the room A to the normal set temperature T (S557). When the control device 60 performs air conditioning on the room A in the normal air conditioning mode, the normal temperature range ΔT between the normal outside air temperature side limit temperature Tc1 and the normal non-outside air temperature side limit temperature Tc2 with the normal set temperature T interposed therebetween. Control as. Here, when the temperature control restriction flag is turned “ON” in S556, the controller 60 is far from the outside air temperature in the range in which the temperature of the room A is controlled even when the room A performs air conditioning in the normal air conditioning mode. The boundary value Bf on the side is changed to the normal set temperature T. For example, when cooling is performed with the normal set temperature T = 25 ° C. for the room A, the room A has a normal temperature between the normal outside air temperature side limit temperature Tc1 = 26 ° C. and the normal anti-outside air temperature side limit temperature Tc2 = 24 ° C. The temperature is controlled as a range ΔT. In this case, when the temperature control restriction flag is “ON”, the boundary value Bf on the side farther from the outside air temperature in the temperature control range of the room A is set to 25 ° C. which is the normal set temperature T, that is, Bf = 25 ° C. Is done. As a result, the temperature of room A is controlled between 25 ° C. and 26 ° C. with 25 ° C. as the lower limit when the normal set temperature T during cooling is T = 25 ° C. When heating is performed for the room A at the normal set temperature T = 25 ° C., the room A has a normal temperature between the normal outside temperature side limit temperature Tc1 = 24 ° C. and the normal anti-outside air temperature side limit temperature Tc2 = 26 ° C. The temperature is controlled as a range ΔT. In this case, when the temperature control flag is turned “ON”, the boundary value Bf far from the outside air temperature in the temperature control range of the room A is set to 25 ° C. which is the normal set temperature T, that is, Bf = 25 ° C. As a result, when the normal set temperature T during heating is T = 25 ° C., the room A is temperature-controlled between 24 ° C. and 25 ° C. with the upper limit being 25 ° C.

  When it is determined that the room extracted in S555 has no temperature room that is closer to the outside air temperature than the normal outside air temperature side limit temperature Tc1 of the room A (S555: No), the control device 60 controls the temperature of the room A that is the room to be controlled. The restriction flag is set to “off” (S558). That is, when the temperature of the extracted room C is farther from the outside air temperature than the normal outside air temperature limit temperature Tc1 of the room A, the control device 60 sets the temperature control restriction flag for the room A to “off”. For example, the control device 60 determines that the temperature of the room C is lower than the normal outside air temperature side limit temperature Tc1 of the room A during cooling, and the temperature of the room C is the normal outside air temperature limit of the room A during heating. When the temperature is higher than the temperature Tc1, the temperature control restriction flag of the room A is set to “off”. Then, the control device 60 returns the boundary value Bf on the side farther from the outside air temperature in the range for controlling the temperature of the room A to the normal anti-outside air temperature side limit temperature Tc2 (S559). That is, the control device 60 controls the temperature of the room A as normal, with the normal anti-outside air temperature side limit temperature Tc2 for the room A as the boundary value Bf far from the outside air temperature.

When determining that there is no room with the rapid air-conditioning flag “on” in S552 (S552: No), the control device 60 determines whether the temperature control restriction flag for the room A is “on” (S561). . In the previous process in the room A, the temperature control restriction flag may be “ON” in S556. Therefore, when determining that there is no non-control target room with the rapid air-conditioning flag “on”, the control device 60 determines whether the temperature control restriction flag for the room A is “on”. When the controller 60 determines that the temperature control restriction flag for the room A is “ON” (S560: Yes), the controller 60 sets the temperature control restriction flag for the room A to “OFF” (S561). The boundary value Bf on the side farther from the outside air temperature in the temperature control range for the room A is returned to the normal anti-outside air temperature side limit temperature Tc2 (S562). That is, when the rapid air conditioning of the non-control target room is completed while the air conditioning is restricted for the room A, the control device 60 sets the temperature control restriction flag to “off” and the boundary on the far side from the outside air temperature as in S559. The value Bf is returned to the normal outside temperature side limit temperature Tc2.
The control device 60 compares the temperature of the room A acquired in S551 with the boundary value Bf set in S557 or the normal outside temperature side limit temperature Tc2 returned in S559 or S562, and performs normal air conditioning in the room A. carry out.

  The temperature change at the time of air_conditioning | cooling using said normal air-conditioning mode process is demonstrated based on FIG. FIG. 13 is an example of temperature changes in the room A and the room C for explaining the above control. FIG. 13 shows an example in which the room to be controlled is a room A, the room to be rapidly air-conditioned among the non-control target rooms is a room C, and the room A and the room C are cooled. The room A, which is a room to be controlled, has a person 70, and is normally set to a temperature TA = 20 ° C., a normal outside air temperature side limit temperature Tc1A = 21 ° C., and a normal anti-outside air temperature side limit temperature Tc2A = 19 ° C. It is assumed that the normal air conditioning mode process is being performed. On the other hand, it is assumed that the room C, which is a non-control target room, has entered the room 70 when the absence time set temperature tC = 28 ° C. and time τ = 0, and has shifted from the energy saving air conditioning mode to the rapid air conditioning mode. The room C is set to a normal set temperature TC = 18 ° C., a normal outside air temperature side limit temperature Tc1C = 19 ° C., and a normal anti-outside air temperature side limit temperature Tc2C = 17 ° C.

  When τ = 0, the room C has a set temperature tC = 28 ° C. in the absence, and the room A has a normal set temperature TA = 20 ° C. At this time, when a person 70 enters the room C, the room C shifts to the rapid air conditioning mode. Therefore, the control device 60 compares the temperature of the room C extracted that the rapid air-conditioning mode is being performed with the temperature of the room A. When τ = 0, the temperature of the room C is higher than the temperature of the room A that is the room to be controlled, so the control device 60 turns on the temperature control restriction flag for the room A. As a result, the control device 60 sets the lower limit temperature for cooling the room A to TA = 20 ° C., which is the set temperature of the room A. Further, the control device 60 fully closes the on-off valve 31 of the air-conditioning duct 21 connected to the room A and fully opens the on-off valve 33 of the air-conditioning duct 23 connected to the room C. Therefore, the room C is supplied with concentrated cold air generated by the air conditioning unit 12 in the rapid air conditioning mode.

  Since the cold air is concentrated and supplied to the room C, the temperature of the room A gradually increases from τ = 0 to τ1. On the other hand, the temperature of the room C rapidly decreases from τ = 0 to τ1. When the temperature of the room A that gradually increases reaches τ1, the normal outside air temperature side limit temperature Tc1A of the room A reaches 21 ° C. Therefore, the control device 60 opens the on-off valve 31 of the air conditioning duct 21 connected to the room A, and supplies the cold air generated by the air conditioning unit 12 to the room A as well. That is, the cold air generated by the air conditioning unit 12 is distributed to the room C in which the rapid air conditioning mode is implemented and the room A in which the normal air conditioning mode is implemented. As a result, the temperature decrease in the room C becomes gentler from time τ = 0 to τ1 from τ1 to τ2. Further, the temperature of the room A also decreases from τ1 to τ2.

  When τ2, the temperature in the room A decreases to TA = 20 ° C., which is a normal set temperature. Here, if it is normal, as indicated by a broken line and a symbol “■” in FIG. 13, the control device 60 reduces the temperature of the room A to the normal anti-outside air temperature side limit temperature Tc2A = 19 ° C. However, when room C is rapidly air-conditioned, the temperature control restriction flag for room A is “ON”, and the lower limit temperature is restricted to TA = 20 ° C., which is the normal set temperature for room A. Therefore, when the temperature of the room A reaches TA = 20 ° C. when τ2 is reached, the control device 60 fully closes the on-off valve 31 of the air conditioning duct 21 connected to the room A. As a result, the temperature of the room A rises again from τ2 to τ3. On the other hand, when the on-off valve 31 of the air conditioning duct 21 connected to the room A is fully closed, the cold air from the air conditioning unit 12 is again concentrated and supplied to the room C from τ2 to τ3. Therefore, the temperature of the room C rapidly decreases with the same inclination as from τ = 0 to τ1. In the room C, when normal temperature control is performed on the room A as indicated by the symbol “■”, the change in temperature becomes moderate as indicated by the broken line and the symbol “□” in FIG. However, by setting the lower limit of the temperature control of the room A to TA = 20 ° C., the cold air is supplied to the room C from an earlier stage.

  At τ3, the temperature in the room A reaches Tc1A = 21 ° C. again, and the control device 60 fully opens the on-off valve 31 of the air conditioning duct 21 connected to the room A. Therefore, the temperature of the room A decreases to TA = 20 ° C. On the other hand, since the cold air is distributed from the air conditioning unit 12 to the room A and the room C, the temperature decrease in the room C becomes gradual, similarly to τ1 to τ2. And when it becomes (tau) 4, the temperature of the room A reaches TA = 20 degreeC.

  The period from τ4 to τ6 is controlled in the same manner as the period from τ2 to τ4. Here, when the temperature of the room C reaches τa after τ5, it falls below the normal outside air temperature side limit temperature Tc1A = 21 ° C. of the room A. When the temperature of the room C falls below Tc1A = 21 ° C. (see S555), the control device 60 sets the temperature control restriction flag for the room A to “off”, and sets the lower limit of the temperature control for the room A to the normal anti-outside temperature side limit temperature. Set Tc2A = 19 ° C. As a result, the control device 60 controls the temperature of the room A in the normal air conditioning mode. As a result, the temperature of the room A is controlled between Tc1A = 21 ° C. and Tc2A = 19 ° C.

  On the other hand, when the temperature of the room C reaches τb after τ7, it falls below the normal set temperature TC = 18 ° C. of the room C. When the temperature of the room C falls below TC = 18 ° C., the control device 60 shifts the air conditioning mode of the room C from the rapid air conditioning mode to the normal air conditioning mode. As a result, the control device 60 controls the temperature of the room C in the normal air conditioning mode. As a result, the temperature of the room C is controlled between Tc1C = 19 ° C. and Tc2C = 17 ° C.

  By controlling the temperatures of the room A and the room C as described above, the lower limit of the temperature control of the room A becomes TA = 20 ° C., which is the normal set temperature, from τ2 to τ6, but the temperature of the room C becomes more rapid. descend. For this reason, the temperature of the room C quickly decreases as compared with the normal control. As a result, the discomfort given to the person 70 who enters the room C is reduced earlier. For room A, the lower limit of temperature control is merely changed from the normal anti-outside air temperature limit temperature Tc2A = 19 ° C. to the normal set temperature TA = 20 ° C. Therefore, the person 70 who is occupying the room A hardly feels the limitation of the air conditioning accompanying the rapid air conditioning of the room C. As a result, the discomfort is not increased even for the person 70 in the room A.

  As described above, when the normal air conditioning mode is being performed in the room A, the control device 60 restricts the air conditioning in the room A if the other room C has shifted to the rapid air conditioning mode. Cold air or warm air is concentrated and supplied to the room C. As a result, the temperature of the room C in which the person 70 has newly entered quickly changes without increasing discomfort in the room A in which normal air conditioning is performed. Therefore, the discomfort in the room C in which the person 70 has newly entered can be quickly reduced without impairing the comfort of the room A in which the person 70 is already present.

(Second Embodiment)
A central air conditioning system according to the second embodiment will be described. In the case of the second embodiment, the configuration of the central air conditioning system is the same as that of the first embodiment, but includes processing different from that of the first embodiment. Hereinafter, the difference will be mainly described.
In the case of the second embodiment, the person detection process and the normal air conditioning mode process are different from those of the first embodiment.

(Human detection processing)
In the second embodiment, the human detection process is performed according to the procedure shown in FIG. Note that the human detection process according to the procedure shown in FIG. 14 or 15 may be applied to the first embodiment.
A flow of the human detection process shown in FIG. 14 will be described. In the human detection process in S510 of the overall process flow shown in FIG. 6, the control device 60 determines whether or not the human detection sensor 51 in the room A has reacted as shown in FIG. 14 (S2511). When the human detection sensor 51 does not react in S2511 (S2511: No), the control device 60 determines whether or not the absence time timer value xt has passed the user set standby time wt (S2512). Here, the absence time timer value xt is a timer value indicating the time when the person 70 is absent from the room A. Further, the user set standby time wt is a value for which it is determined that the person 70 is absent from the room A after this time has elapsed. When the person 70 is not detected even after the user set standby time wt has elapsed for the room A, the control device 60 determines that the person 70 is absent for the room A. The user setting standby time wt can be arbitrarily set by the user.

  When it is determined in S2512 that the absence time timer value xt has passed the user set standby time wt, that is, xt ≧ wt (S2512: Yes), the control device 60 resets the absence time timer value xt (S2513) and proceeds to the absence processing. Transition. That is, if xt ≧ wt, the period in which the person 70 is absent from the room A exceeds the user set standby time wt. Therefore, the control device 60 determines that the person 70 is absent in the room A, and proceeds to the absence process. On the other hand, when it is determined in S2512 that the absence time timer value xt has not passed the user set standby time wt, that is, xt <wt (S2512: No), the control device 60 counts up the absence time timer value xt and performs air conditioning. Transition to mode confirmation processing. That is, when xt <wt, it is unknown whether the person 70 is temporarily absent from the room A or is absent for a long time. Therefore, the control device 60 proceeds to the air-conditioning mode confirmation process in order to continue the air-conditioning as usual while counting up the absence time timer value xt (S2524). Further, when the human detection sensor 51 reacts in S2511 (S2511: Yes), the control device 60 determines that the person 70 is in the room A and resets the absence time timer value xt (S2515). And the control apparatus 60 transfers to an air-conditioning mode confirmation process.

  When the person 70 is present in the room A, which is the control target room, the person 70 is always in the room A and is not always detected by the person detection sensor 51. For example, the person 70 moves out of the room A for a short time, or moves to a position where the person detection sensor 51 cannot detect it. Thus, when the person 70 is not detected by the human detection sensor 51 in the room A, if the process immediately shifts to the absence process, the comfort of the room A may be impaired. Further, for example, in the case where reservation air conditioning for controlling the room A to an appropriate temperature is performed in advance when the return time is set in advance and the person 70 is not detected in the room A and the absence process is performed, the room A There is a possibility that it will not be possible to control the temperature appropriately even if it is time to go home. Therefore, by performing the person detection process as shown in FIG. 14, appropriate air conditioning can be continued even in the case of going out for a short time less than the preset user setting standby time wt or reserved air conditioning.

Further, the person detection process may be performed as shown in FIG.
In the human detection process in S510 of the overall process flow shown in FIG. 6, the control device 60 determines whether or not the human detection sensor 51 in the room A has reacted as shown in FIG. 15 (S3511). When the human detection sensor 51 does not react in S3511 (S3511: No), the control device 60 calculates the difference Δxt between the current time xt1 and the previous time xt2 detected in the previous routine as xt1−xt2, and this difference Δxt is set to the absence time timer value xt (S3512). That is, the control device 60 calculates the absence time timer value xt from the difference Δxt between the time of the previous routine and the current time. Then, the control device 60 determines whether or not the calculated absence time timer value xt has passed the user set standby time wt (S3513).

  When the absence time timer value xt has passed the user set standby time wt in S3513, that is, when xt ≧ wt is determined (S3513: Yes), the control device 60 clears the previous time xt2 (S3514) and proceeds to the absence process. . On the other hand, when determining that xt <wt in S3513 (S3513: No), the control device 60 sets the current time xt1 to the previous time xt2 used in the next routine (S3515), and proceeds to the air conditioning mode confirmation process. In addition, when the human detection sensor 51 reacts in S3511 (S3511: Yes), the control device 60 determines that the person 70 is in the room A and clears the previous time xt2 (S3516). And the control apparatus 60 transfers to an air-conditioning mode confirmation process.

  The person detection process shown in FIG. 15 is the same as the person detection process shown in FIG. 14 except that the time is used as a reference. Even when the human detection process as shown in FIG. 15 is performed, appropriate air conditioning can be continued in the case of a short-term outing or reserved air conditioning that does not reach the preset user setting waiting time wt.

(Normal air conditioning mode processing)
Next, the normal air conditioning mode process according to the second embodiment will be described with reference to FIG.
In the air conditioning mode confirmation process in S530, the control device 60 determines that the air conditioning flag of the room A is “ON” in S531 (S531: Yes), and the temperature of the room A is within the normal temperature range ΔT in S532. When it is determined that there is (S532: Yes), the process proceeds to the normal air conditioning mode.

  When the controller 60 determines that the room A is the normal air conditioning mode process in the air conditioning mode confirmation process shown in FIG. 10, the controller 60 acquires the temperature of the room A (S951). The control device 60 acquires the temperature of the room A from the temperature sensor 41 provided in the room A. When the temperature of the room A is acquired in S951, the control device 60 determines whether the rapid air-conditioning flag for the room B is “ON” (S952), whether the rapid air-conditioning flag for the room C is “ON” (S953), and the room. It is judged in order whether the rapid air-conditioning flag of D is “ON” (S954). For example, when a person 70 is present in the room A, another person 70 may enter the other rooms B to D. When the person 70 is present only in the room A, the room A is air-conditioned in the normal air-conditioning mode, and the other rooms B to D are air-conditioned in the energy-saving air-conditioning mode. Here, when another person 70 enters the rooms B to D, the rooms B to D in which the person 70 enters enter the rapid air conditioning mode. Therefore, when the room A that is the control target room is in the normal air conditioning mode, the control device 60 performs the rapid air conditioning in the rooms B to D that are the other non-control target rooms. It is determined whether it is “ON”.

  When the rapid air conditioning flag of the room B is “ON” (S952: Yes), when the rapid air conditioning flag of the room C is “ON” (S953: Yes), the rapid air conditioning flag of the room D is “ON”. When (S954: Yes), the control device 60 determines whether or not the temperature of the room during the rapid air-conditioning is closer to the outside air temperature than the restricted outside air temperature side limit temperature Td1 in the room A (S955). That is, when the rapid air conditioning flag is “ON” in any one or more of the room B, the room C, and the room D, the control device 60 proceeds to the non-control target room rapid air conditioning priority process, and the rapid air conditioning flag Is compared with the temperature of the limit outside air temperature side limit temperature Td1 in the room A that is the control target room. Then, the control device 60 determines whether or not the temperature of the room in which the rapid air-conditioning flag is “ON” is closer to the outside air temperature than the limit outside air temperature limit temperature Td1 of the room A. For example, the control device 60 determines whether or not the temperature of the rooms B to D is equal to or higher than the limit outside air temperature limit temperature Td1 of the room A when cooling, and the temperature of the rooms B to D is room A when heating. It is determined whether or not the outside temperature side limit temperature Td1 is below the limit.

  Here, the limit outside temperature side limit temperature Td1 is set closer to the outside temperature than the normal outside temperature side limit temperature Tc1 set for the room A. For example, when the room A is cooled, if the normal set temperature T is T = 25 ° C. and the normal outside air temperature side limit temperature Tc 1 is Tc 1 = 26 ° C., the restricted outside air temperature limit temperature Td 1 is set to Td 1 = 27 ° C. Is done. When the room A is heated, if the normal set temperature T is T = 25 ° C. and the normal outside air temperature side limit temperature Tc 1 is Tc 1 = 23 ° C., the restricted outside air temperature side limit temperature Td 1 is set to Td 1 = 22 ° C. Is done.

  If the control device 60 determines that the temperature of the rooms B to D is closer to the outside air temperature than the normal outside air temperature side limit temperature Tc1 of the room A (S955: Yes), the control device 60 proceeds to the temperature comparison process and stops the air conditioning of the room A. It is determined whether or not the air conditioning stop flag is “ON” (S956). When determining that the air conditioning stop flag of the room A is “off” (S956: No), the control device 60 sets the air conditioning stop flag of the room A to “on” (S957). Then, the control device 60 sets the boundary value Bn on the side close to the outside air temperature in the range in which the temperature is controlled for the room A to the limited outside air temperature side limit temperature Td1 preset for the room A (S958).

  On the other hand, the control device 60 sets the boundary value Bf on the side farther from the outside air temperature in the range for controlling the temperature for the room A to the normal set temperature T set in advance for the room A (S959). And the control apparatus 60 closes the air-conditioning duct 21 connected to the room A with the on-off valve 31 in order to stop the air-conditioning of the room A (S960). That is, when stopping the air conditioning of the room A, the control device 60 controls the temperature of the room A between the boundary value Bn = Td1 on the side close to the outside air temperature and the boundary value Bf = T on the side far from the outside air temperature. To do. More specifically, the control device 60 controls the temperature of the room A between the limit outside air temperature side limit temperature Td1 and the normal set temperature T. The control device 60 closes the air conditioning duct 21 connected to the room A with the opening / closing valve 31, and then proceeds to control of the room B in S600.

  For example, when cooling is performed with the normal set temperature T = 25 ° C. for the room A, the room A has a normal outside air temperature side limit temperature Tc 1 = 26 ° C. and a normal anti-outside air temperature side limit temperature Tc 2 = 24 ° C. as shown in FIG. Is controlled within the normal temperature range ΔT. In this case, when the air conditioning stop flag is turned “ON” for the room A, the boundary value Bn on the side close to the outside temperature becomes the limit outside temperature side limit temperature Td1 = 27 ° C. for the room A, and the boundary on the side far from the outside temperature The value Bf becomes the limit anti-outside air temperature side limit temperature Td2. This limited outside air temperature side limit temperature Td1 is set between the normal outside air temperature side limit temperature Tc1 and the outside air temperature. Further, this limit anti-outside air temperature side limit temperature Td2 is set between the normal outside air temperature side limit temperature Tc1 and the normal anti-outside air temperature side limit temperature Tc2. In the example shown in FIG. 17, the limit anti-outside air temperature limit temperature Td2 is set to the normal set temperature T = 25 ° C. Therefore, when the air conditioning flag is “ON”, the boundary value Bf on the side farther from the outside air temperature of the room A is Bf = Td2 = T = 25 ° C. As a result, the temperature in room A is controlled between 27 ° C and 25 ° C. When heating is performed for the room A at the normal set temperature T = 25 ° C., the room A has a normal temperature between the normal outside temperature side limit temperature Tc1 = 24 ° C. and the normal anti-outside air temperature side limit temperature Tc2 = 26 ° C. The temperature is controlled as a range ΔT. In this case, when the air conditioning stop flag is turned on for the room A, the boundary value Bn on the side close to the outside air temperature becomes the limit outside temperature side limit temperature Td1 = 23 ° C. for the room A, and the boundary on the side far from the outside air temperature The value Bf is normally set temperature T = 25 ° C. Also in this case, if Bf = Td2, then Td2 = 25 ° C. Therefore, the temperature of the room A is controlled between 23 ° C. and 25 ° C.

  When the controller 60 determines that the air conditioning stop flag for the room A is “ON” in S956 as shown in FIG. 16 (S956: Yes), the air conditioning restriction flag for restricting air conditioning for the room A is “ON”. Whether or not (S961). When determining that the air conditioning restriction flag is “off” for room A (S961: No), control device 60 determines whether or not the temperature of room A is closer to the outside air temperature than restricted outside air temperature side limit temperature Td1 ( S962). As described above, when the air conditioning stop flag is turned on for the room A and the air conditioning is stopped for the room A, the temperature of the room A reaches the limit outside temperature side limit temperature Td1. Therefore, when the control device 60 determines in S962 that the temperature of the room A is closer to the outside air temperature than the restricted outside air temperature side limit temperature Td1 (S962: Yes), an air conditioning restriction flag for restricting air conditioning for the room A is set to “ “On” (S963). Then, the control device 60 opens the on-off valve 31 of the air conditioning duct 21 connected to the room A (S964), and returns the boundary value Bn on the side close to the outside air temperature of the room A to the normal outside air temperature side limit temperature Tc1 ( S965). As a result, in the room A, the state where the air conditioning is stopped is released, the boundary value Bf far from the outside air temperature is set as the normal set temperature T, and the boundary value Bn near the outside air temperature is set as the normal outside air temperature side limit temperature Tc1. The temperature control is implemented.

  For example, when cooling is performed for the room A, if the air conditioning restriction flag of the room A is “ON”, the upper temperature of the room A is set to the normal outside air temperature side limit temperature Tc1 (26 ° C.), and the lower limit is normally set. The temperature is controlled as T (25 ° C.). Further, when heating the room A, if the air-conditioning restriction flag of the room A is “ON”, the temperature of the room A has the upper limit set to the normal set temperature T (25 ° C.) and the lower limit set to the normal outside temperature side limit. The temperature is controlled as Tc1 (24 ° C.).

  When the control device 60 determines in S961 that the air conditioning control flag has already been “ON” for the room A (S961: Yes), the controller 60 controls the temperature of the room A as Bf = T and Bn = Tc1. In S962, the control device 60 determines that the temperature of the room A is farther from the outside air temperature than the limit outside air temperature limit temperature Td1, that is, is closer to the normal set temperature T than the limit outside air temperature limit temperature Td1 (S962: No), the state where the air conditioning is stopped for the room A is continued. Therefore, the control device 60 controls the temperature of the room A as Bf = T and Bn = Td1.

  When the rapid air-conditioning flag for the room B is “off” (S952: No), when the rapid air-conditioning flag for the room C is “off” (S953: No), the control device 60 sets the rapid air-conditioning flag for the room D. When it is “OFF” (S954: No), it is determined whether or not the air conditioning stop flag of the room A is “ON” (S966). When determining that the air conditioning stop flag of the room A is “ON” (S966: Yes), the control device 60 sets the air conditioning stop flag of the room A to “OFF” (S967) and sets the air conditioning restriction flag of the room A. “Off” is set (S968). That is, the control device 60 sets the air conditioning stop flag and the air conditioning restriction flag to “off” on the assumption that the air conditioning stop or the air conditioning restriction is unnecessary for the room A. Further, the control device 60 sets the boundary value Bn on the side close to the outside temperature for the room A to Tc1 (S969), and sets the boundary value Bf on the side far from the outside temperature to Tc2 (S970). As a result, the temperature control range for the room A is reset to the normal outside air temperature side limit temperature Tc1 and the normal anti-outside air temperature side limit temperature Tc2.

  The controller 60 determines that the air conditioning restriction flag for the room A is “ON” in S961 (S961: Yes), and sets the boundary value Bn on the side close to the outside air temperature of the room A to the normal outside air temperature limit temperature Tc1 in S965. In step S962, it is determined that the temperature of the room A is not closer to T than Td1 (S962: No), and in S970, the boundary value Bf far from the outside temperature of the room A is set to the normal anti-outside air temperature side limit temperature Tc2, or If it is determined in S966 that the air conditioning stop flag of the room A is “OFF” (S966: No), the normal air conditioning of the room A is performed according to the upper and lower limits of the temperature set at that time (S971).

A temperature change during cooling using the normal air conditioning mode process will be described with reference to FIGS. 18 and 19.
FIGS. 18 and 19 are examples of temperature changes in the room A and the room C for explaining the above control. 18 shows an example in which the air conditioning of the room A is turned off when the person 70 enters the room C, and FIG. 19 shows the air conditioning of the room A turned on when the person 70 enters the room C. This is an example of the case. FIG. 18 and FIG. 19 each show an example in which the room to be controlled is the room A, the room in which rapid air conditioning is performed among the non-control target rooms is the room C, and the room A and the room C are cooled. The room A, which is a room to be controlled, has a person 70, and is normally set to a temperature TA = 20 ° C., a normal outside air temperature side limit temperature Tc1A = 21 ° C., and a normal anti-outside air temperature side limit temperature Tc2A = 19 ° C. It is assumed that the normal air conditioning mode process is being performed. The limit outside temperature side limit temperature Td1A of the room A is set to 22 ° C. which is closer to the outside temperature than the normal outside temperature side limit temperature Tc1A, that is, higher than Tc1A. On the other hand, it is assumed that the room C, which is a non-control target room, has entered the room 70 when the absence time set temperature tC = 29 ° C. and time τ = 0, and has shifted from the energy saving air conditioning mode to the rapid air conditioning mode. This room C is set to a normal set temperature TC = 20 ° C., a normal outside air temperature side limit temperature Tc1C = 21 ° C., and a normal anti-outside air temperature side limit temperature Tc2C = 19 ° C.

  In the case shown in FIG. 18, when τ = 0, the room C has a set temperature tC = 29 ° C. in the absence, and the room A has a normal set temperature TA = 20 ° C. At this time, when a person 70 enters the room C, the room C shifts to the rapid air conditioning mode. Therefore, the control device 60 compares the temperature of the room C with Td1A = 22 ° C. of the room A (see S955), assuming that the rapid air-conditioning flag is “ON” for the room C (see S953). At this time, since the temperature 29 ° C. of the room C is higher than Td1A = 22 ° C. of the room A, the control device 60 determines whether the air conditioning stop flag of the room A is set (see S956). When a person 70 enters the room C with τ = 0, the air conditioning stop flag for the room A is not set. Therefore, the control device 60 sets the air conditioning stop flag for the room A (see S957), and changes the boundary value Bn on the high temperature side close to the outside temperature of the room A to Td1A = 22 ° C. (see S958). Furthermore, the control device 60 sets the boundary value Bf on the low temperature side far from the outside temperature of the room A to TA = 20 ° C., which is the normal set temperature (see S959). And the control apparatus 60 stops the air conditioning of the room A, and makes the on-off valve 31 of the air conditioning duct 21 connected to the room A fully closed. Therefore, the cold air generated by the air conditioning unit 12 is not supplied to the room A but is supplied to the room C in a concentrated manner.

  Since the cold air is concentrated and supplied to the room C, the temperature of the room A gradually increases from τ = 0 to τ2. On the other hand, the temperature of the room C rapidly decreases from τ = 0 to τ2. When the temperature of the room A that gradually rises reaches τ2, it reaches the limit temperature Td1A of the room A outside temperature limit Td1A = 22 ° C. Therefore, the control device 60 opens the on-off valve 31 of the air conditioning duct 21 connected to the room A, and supplies the cold air generated by the air conditioning unit 12 to the room A as well. That is, the cold air generated by the air conditioning unit 12 is distributed to the room C in which the rapid air conditioning mode is implemented and the room A in which the normal air conditioning mode is implemented. As a result, the temperature drop in the room C is moderated from τ2 to τ4. Further, the temperature of the room A also decreases from τ2 to τ4.

  Here, normally, as indicated by the broken line and the symbol “■” in FIG. 18, the controller 60 controls the temperature of the room A between Tc1A = 21 ° C. and Tc2A = 19 ° C. from τ1 to τ3. . However, when the room C is rapidly air-conditioned, the lower limit temperature of the room A is TA = Td2A = 20 ° C., and the upper limit temperature is Td1A = 22 ° C. Therefore, even if the temperature of the room A reaches Tc1A = 21 ° C. when the temperature of the room A reaches τ1, the control device 60 stops the air conditioning of the room A as it is until the temperature of the room A reaches Td1A = 22 ° C. When the temperature of the room A reaches Td1A = 22 ° C. at τ2, the on-off valve 31 of the air conditioning duct 21 connected to the room A is fully opened. As a result, the temperature of the room A decreases from τ2 to τ4. At this time, if normal temperature control is performed for the room A as indicated by the symbol “■” for the room A, the temperature change becomes gentle as indicated by the broken line and the symbol “□” in FIG. However, in the second embodiment, by setting the upper limit of the temperature control of the room A to Td1A = 22 ° C., the supply of cool air to the room A is limited, and the cool air is supplied to the room C from an earlier stage. Is done. As a result, as shown by the symbol “◯” in FIG. 18, the temperature change in the room C rapidly decreases compared to the normal control indicated by the symbol “□”.

  When τ4, the temperature in the room A decreases to TA = 20 ° C., which is the normal set temperature. Therefore, when the temperature of the room A reaches TA = 20 ° C. at τ 4, the control device 60 fully closes the on-off valve 31 of the air conditioning duct 21 connected to the room A. As a result, the temperature of the room A rises again from τ4 to τ5. On the other hand, when the on-off valve 31 of the air conditioning duct 21 connected to the room A is fully closed, the cold air from the air conditioning unit 12 is again concentrated and supplied to the room C from τ4 to τ5. Therefore, the temperature of the room C rapidly decreases with the same inclination as from τ = 0 to τ2.

  After τ5, the temperature in room C falls below Td1A = 22 ° C. Therefore, the control device 60 returns the temperature control range of the room A to Tc1A = 21 ° C. Thereby, the control apparatus 60 controls the temperature of the room A between τ5 to τ6 between TA = 20 ° C. which is the lower limit and Tc1A = 21 ° C. which is the upper limit. Then, after τ6, the temperature of the room C falls below the normal outside air temperature limit temperature Tc1C of the room C = 21 ° C. Therefore, the control device 60 controls the temperature of the room C in the normal air conditioning mode. The control device 60 also controls the temperature of the room A in the normal air conditioning mode. As a result, the temperature of the room A is controlled between Tc1A = 21 ° C. and Tc2A = 19 ° C., and the temperature of the room C is controlled between Tc1C = 21 ° C. and Tc2C = 19 ° C.

By controlling the temperatures of the room A and the room C as described above, the temperature of the room A exceeds Tc1A = 21 ° C. from τ1 to τ3, and reaches Td1A = 22 ° C. at τ2. However, even if the temperature of the room A exceeds Tc1A = 21 ° C. from τ1 to τ3, the temperature difference is 1 ° C. For this reason, the person 70 in the room A hardly receives discomfort, or even if it receives discomfort, it is a short time. On the other hand, by stopping the temperature control of the room A from τ1 to τ3 in this way, the room C in which a person 70 newly enters is rapidly cooled from τ1 to τ4. Therefore, the discomfort given to the person 70 who entered the room C is reduced earlier. Therefore, the discomfort of the person 70 who has entered the room C can be eliminated at an early stage without increasing discomfort for the person 70 in the room A.
Next, the example shown in FIG. 19 will be described. In the case shown in FIG. 19, when τ = 0, the room C has the absent set temperature tC = 29 ° C., and the room A has the normal outside air temperature side limit temperature Tc1A = 21 ° C. That is, when a person 70 enters the room C, the temperature in the room A is TA = 20 ° C. in the case shown in FIG. 18, whereas the temperature in the room A is Tc1A = 21 ° C. in the case shown in FIG. . When person 70 enters room C at τ = 0, room C shifts to the rapid air conditioning mode. At this time, since the temperature 29 C in the room C is higher than Td1A = 22 ° C. in the room A, the control device 60 changes the boundary value Bn on the high temperature side close to the outside air temperature in the room A to Td1A = 22 ° C. Furthermore, the control device 60 sets the boundary value Bf on the low temperature side far from the outside air temperature of the room A to TA = 20 ° C., which is the normal set temperature. When τ = 0, the temperature of the room A is Tc1A = 21 ° C., and can rise to Td1A = 22 ° C., which is the boundary value Bn. Therefore, the control device 60 stops the air conditioning of the room A and fully closes the on-off valve 31 of the air conditioning duct 21 connected to the room A. As a result, the cold air generated by the air conditioning unit 12 is not supplied to the room A but is supplied to the room C in a concentrated manner.

  Since the cold air is concentrated and supplied to the room C, the temperature of the room A gradually increases from τ = 0 to τ1. On the other hand, the temperature of the room C rapidly decreases from τ = 0 to τ1. When the temperature of the room A gradually rising reaches τ1, it reaches the limit outside temperature side limit temperature Td1A of the room A = 22 ° C. Therefore, the control device 60 opens the on-off valve 31 of the air conditioning duct 21 connected to the room A, and supplies the cold air generated by the air conditioning unit 12 to the room A as well. That is, the cold air generated by the air conditioning unit 12 is distributed to the room C and the room A. As a result, the temperature drop in the room C is moderated from τ1 to τ3. Further, the temperature of the room A also decreases from τ1 to τ3.

  Here, normally, as indicated by a broken line and a symbol “■” in FIG. 19, the controller 60 controls the temperature of the room A between Tc1A = 21 ° C. and Tc2A = 19 ° C. from τ0 to τ2. . However, when the room C is rapidly air-conditioned, the lower limit temperature of the room A is TA = Td2A = 20 ° C., and the upper limit temperature is Td1A = 22 ° C. Therefore, even if the temperature of the room A is Tc1A = 21 ° C. when the temperature of the room A is τ = 0, the control device 60 stops the air conditioning of the room A as it is until τ1 when the temperature of the room A reaches Td1A = 22 ° C. When the temperature of the room A reaches Td1A = 22 ° C. at τ1, the on-off valve 31 of the air conditioning duct 21 connected to the room A is fully opened. As a result, the temperature of the room A decreases from τ1 to τ3. At this time, if normal temperature control is performed on the room A as indicated by the symbol “■” for the room A, the temperature change becomes gentle as indicated by the broken line and the symbol “□” in FIG. However, in the case of the second embodiment, by setting the upper limit of the temperature control of the room A to Td1A = 22 ° C., the supply of cool air to the room A is limited, and the cool air concentrates in the room C from an earlier stage. Supplied. As a result, as shown by the symbol “◯” in FIG. 19, the temperature change in the room C rapidly decreases compared to the normal control indicated by the symbol “□”.

  When τ3, the temperature in the room A decreases to TA = 20 ° C., which is a normal set temperature. Therefore, when the temperature of the room A reaches TA = 20 ° C. at τ 3, the control device 60 fully closes the on-off valve 31 of the air conditioning duct 21 connected to the room A. As a result, the temperature of the room A rises again from τ3 to τ4. On the other hand, when the on-off valve 31 of the air conditioning duct 21 connected to the room A is fully closed, the cold air from the air conditioning unit 12 is again concentrated and supplied to the room C from τ3 to τ4. Therefore, the temperature of the room C rapidly decreases with the same inclination as from τ = 0 to τ1.

  Even after τ4, the temperature in the room C exceeds Td1A = 22 ° C. Therefore, the control device 60 controls the temperatures of the room A and the room C from τ = 0 to τ1 in τ4 to τ6 as well. Therefore, the temperature of the room C is indicated by the broken line and the symbol “□” in FIG. 19 corresponding to the normal control of the room A indicated by the broken line and the symbol “■” as shown by the symbol “◯”. In comparison, it decreases more quickly. On the other hand, after τ5, the temperature of the room C falls below Td1A = 22 ° C. Thus, the control device 60 controls the temperature of the room A between τ6 and the lower limit TA = 20 ° C. and the upper limit Tc1A = 21 ° C. Then, after τ6, the temperature of the room C falls below the normal outside air temperature limit temperature Tc1C of the room C = 21 ° C. Therefore, the control device 60 controls the temperature of the room C in the normal air conditioning mode. The control device 60 also controls the temperature of the room A in the normal air conditioning mode. As a result, the temperature of the room A is controlled between Tc1A = 21 ° C. and Tc2A = 19 ° C., and the temperature of the room C is controlled between Tc1C = 21 ° C. and Tc2C = 19 ° C.

  By controlling the temperatures of the room A and the room C as described above, the temperature of the room A exceeds Tc1A = 21 ° C. from τ = 0 to τ2, and reaches Td1A = 22 ° C. at τ1. However, even if the temperature of the room A exceeds Tc1A = 21 ° C. from τ = 0 to τ2, the temperature difference is 1 ° C. For this reason, the person 70 in the room A hardly receives discomfort, or even if it receives discomfort, it is a short time. On the other hand, the temperature control of the room A is stopped from τ = 0 to τ2 and from τ4 to τ6 in this way, so that the room C in which the person 70 newly enters is from τ0 to τ2, and from τ4. It cools rapidly over τ6. Therefore, the discomfort given to the person 70 who entered the room C is reduced earlier. Therefore, the discomfort of the person 70 who has entered the room C can be eliminated at an early stage without increasing discomfort for the person 70 in the room A. In particular, from τ = 0 to τ3, which is an early stage when the person 70 enters the room C, the temperature change in the room C becomes quicker than the normal control. Therefore, immediately after the person 70 who tends to have a great discomfort enters the room C, the temperature of the room C can be quickly reduced, and the discomfort experienced by the person 70 in the room C can be reduced more quickly.

  Further, as described above, in both the case shown in FIG. 18 and the case shown in FIG. 19, the normal outside air temperature side limit temperature Tc1A and the restricted outside air temperature side limit temperature Td1A in the room A are 1 ° C. The person 70 is relatively difficult to feel a temperature difference of about several degrees Celsius. Therefore, even if the boundary value on the outside air temperature side is raised from Tc1A to Td1A in the room A, the person 70 in the room A is hardly discomforted. Therefore, even when the room C is rapidly air-conditioned, the discomfort given to the person 70 in the room A can be reduced. Further, the difference between Tc1A and Td1A is not limited to 1 ° C. and may be set to about several degrees C. As described above, the person 70 is relatively difficult to feel a temperature difference of about several degrees Celsius. For this reason, the difference between Tc1A and Td1A may be dynamically changed according to the current temperature of room A, the normal set temperature, or the like.

(Other embodiments)
The second embodiment described above may be modified as follows.
When the normal outside air temperature side limit temperature Tc1 and the restricted outside air temperature side limit temperature Td1 are approximated, or when the normal outside air temperature side limit temperature Tc2 and the restricted outside air temperature side limit temperature Td2 are approximated, the outside air temperature side and the anti-outside air temperature The temperature range between the limit temperatures on the side is set to be the same as the normal temperature range ΔT. The limit outside air temperature side limit temperature Td2 can be set between the normal set temperature T and the normal anti-outside air temperature side limit temperature Tc2. In this case, for example, when the room A shifts to the rapid air-conditioning mode, the room A is the first temperature control (for example, from τ = 0 to τ3 in FIG. 19), and the outside temperature side limit temperature set above is limited. Temperature control is executed between Td1 and the limit anti-outside air temperature side limit temperature Td2. Therefore, even when the normal outside air temperature side limit temperature Tc1 and the restricted outside air temperature side limit temperature Td1, and the normal outside air temperature side limit temperature Tc2 and the restricted outside air temperature side limit temperature Td2 are approximated, the room A that is the room to be controlled is not. The room C, which is a non-control target room that requires rapid air conditioning, can be rapidly air conditioned without inviting pleasure.

  Moreover, 2nd Embodiment demonstrated the example which sets the restriction | limiting anti-outside air temperature side limit temperature Td2A of the room A which is a control object room to normal setting temperature TA. However, the limit anti-outside air temperature side limit temperature Td2A of the room A may be the current temperature TnA of the room A first detected in S951. In this case, the limit outside air temperature side limit temperature Td1A for the room A is set within the normal temperature range ΔT from the Td2A of the room A.

  For example, the room A is normally cooled at a normal temperature range ΔT = 2 ° C. with a set temperature TA = 25 ° C., a normal outside air temperature side limit temperature Tc1A = 26 ° C., and a normal anti-outside air temperature side limit temperature Tc2A = 24 ° C. To do. At this time, if the temperature of the room A detected in S951 is TnA = 25.5 ° C., the temperature TnA is set to TnA = Td2A = 25.5 ° C. In this case, the limit outside temperature side limit temperature Td1A of the room A is set to Td2A <Td1A ≦ Td2A + ΔT. That is, Td1A of the room A is set to 25.5 ° C. <Td1A ≦ 27.5 ° C.

  By setting Td1A and Td2A for the room A as described above, the limit outside temperature side limit temperature Td1A of the room A in which the person 70 is present is outside the normal range for the room A even if the outside temperature approaches the outside temperature. The temperature side limit temperature Tc1A = 26 ° C. to the normal temperature range ΔT. That is, in the case of cooling, the temperature of the room A is only about a few degrees higher than the normal outside air temperature side limit temperature Tc1A = 26 ° C. at the highest. Therefore, even when the room C is rapidly air-conditioned, the person 70 in the room A hardly notices that the temperature of the room A has exceeded the normal outside air temperature limit temperature Tc1. Therefore, even when performing rapid air conditioning, discomfort in other rooms can be reduced.

  Further, the control device 60 may set Td2A between TA and Tc2A when the temperature of the room A first reaches Td2A after starting the temperature comparison processing from S957 to S960 in FIG. For example, when the temperature in room A first reaches 25.5 ° C., Td 2 A is changed from 25.5 ° C. to between TA = 25 ° C. and Tc 2 A = 24 ° C. Thereby, even when rapid air conditioning is performed in the room C, the opening / closing interval of the opening / closing valve 31 of the air conditioning duct 21 connected to the room A is the same as that in the normal temperature control. Therefore, it is not necessary to increase the number of opening / closing operations of the opening / closing valve 31, and the control can be facilitated.

  The present invention described above is not limited to the above-described embodiment, and can be applied to various embodiments without departing from the gist thereof.

  In the drawings, 10 is a central air conditioning system, 11 is a house, 12 is an air conditioning unit, 21 to 24 are air conditioning ducts, 31 to 34 are on-off valves, 41 to 44 are temperature sensors, 51 to 54 are human detection sensors, and 60 is a control. Device, A to D: shows a room.

Claims (5)

An air conditioning unit that supplies heat-exchanged air, a plurality of air-conditioning ducts that connect the air-conditioning unit and a plurality of rooms in a house and flow heat-exchanged in the air-conditioning unit, A plurality of on-off valves for opening and closing the air-conditioning duct, a person detection sensor for detecting the presence or absence of a person in each of the plurality of rooms, and a temperature sensor for detecting the temperature of each of the plurality of rooms. And opening / closing the plurality of on-off valves based on the presence / absence of a person in each room detected by the person detection sensor and the temperature of each room detected by the temperature sensor to control the temperature of the plurality of rooms for each room. A central air conditioning system for air conditioning the plurality of rooms with one air conditioning unit,
The control device is configured to turn on a person detection process for detecting the presence or absence of a person for each of the plurality of rooms and a occupancy flag indicating a person's occupancy in a manned room in which the person is detected in the person detection process. Is controlled to a normal temperature range ΔT between the normal outside air temperature side limit temperature Tc1 close to the outside air temperature and the normal anti-outside air temperature side limit temperature Tc2 far from the outside air temperature with the normal setting temperature T set in advance. A normal air-conditioning mode process to be performed; and an unattended process in which energy-saving air-conditioning is controlled in an unattended room that does not detect a person in the human detection process, and is controlled to an unattended set temperature t that is closer to the outside air temperature than the normal set temperature T; A rapid air-conditioning mode transition process for rapidly air-conditioning the room controlled to the set temperature t when absent to the normal set temperature T, and a duct closing process for closing any of the air-conditioning ducts,
The control device repeatedly controls the plurality of rooms as control target rooms in order, executes the absence process when the control target room is the unmanned room, and the control target room is the manned room The air conditioning mode confirmation process is executed,
The air conditioning mode confirmation processing determines whether or not a normal air conditioning flag indicating execution of the normal air conditioning mode processing is on. If the normal air conditioning flag is on, the normal air conditioning mode processing is performed, and the normal air conditioning mode processing is performed. If the air conditioning flag is off, it is determined whether the temperature of the control target room detected by the temperature sensor is in the normal temperature range ΔT, and when the temperature of the control target room is not in the normal temperature range ΔT, It is determined whether or not a rapid air-conditioning flag indicating execution of the rapid air-conditioning mode transition process is on. If the rapid air-conditioning flag is off, the rapid air-conditioning mode transition process is performed and the rapid air-conditioning flag is on. If the temperature of the room to be controlled is within the normal temperature range ΔT, the normal air conditioning flag is turned on and the rapid air conditioning flag is turned on. The turn off executing the normal air conditioning mode process,
In the normal air conditioning mode process, whether or not the rapid air conditioning flag is on in any of a temperature detection process in which the temperature sensor detects the temperature of the control target room and a non-control target room other than the control target room. If the rapid air-conditioning flag is on in any of the non-control target rooms, the temperature of the rapid air-conditioning non-control target room in which the rapid air-conditioning flag is on and the control target room are determined. Compared with the normal outside air temperature side limit temperature Tc1, the temperature that restricts the temperature control in the control target room when the temperature of the rapid air conditioning non-control target room is closer to the outside air temperature than the normal outside air temperature limit temperature Tc1 A control limit flag is turned on, a boundary value on the side far from the outside air temperature in the temperature control range of the room to be controlled is set to the normal set temperature T, and the rapid air conditioning non-control pair is set. When the room temperature is closer to the set temperature than the normal outside air temperature limit temperature Tc1, the temperature control limit flag in the control target room is turned off, and the temperature control range in the control target room is set to the normal temperature range ΔT. If the rapid air conditioning flag is off in any of the non-control target rooms, the temperature control range flag in the control target room is turned off and the temperature control range in the control target room is set to the normal temperature range ΔT. Temperature setting in which the temperature of the control target room detected by the temperature sensor after the temperature detection process, the rapid air-conditioning determination process and the temperature range setting process is set in the temperature range setting process. When the boundary value close to the outside air temperature is reached in the range, the on-off valve of the room to be controlled is opened, and the far side from the outside air temperature is opened. Upon reaching the field value closing the closing valve of the control target room,
The absence process is performed when the room to be controlled is determined as the unattended room in the person detection process. If the presence flag is on, the presence flag is turned off and the normal air conditioning flag and While turning off the rapid air-conditioning flag, it is determined whether the rapid air-conditioning flag is on in any of the non-control target rooms, and the rapid air-conditioning flag is on in any of the non-control target rooms. If there is, stop the temperature control in the control target room, if the rapid air-conditioning flag is off in any of the non-control target rooms, control the control target room to the absence set temperature,
The central air conditioning system characterized in that the rapid air-conditioning mode transition process turns on the occupancy flag and the rapid air-conditioning flag in the room to be controlled to fully open the on-off valve in the room to be controlled. An air conditioning unit that supplies heat-exchanged air, a plurality of air-conditioning ducts that connect the air-conditioning unit and a plurality of rooms in a house and flow heat-exchanged in the air-conditioning unit, A plurality of on-off valves for opening and closing the air-conditioning duct, a person detection sensor for detecting the presence or absence of a person in each of the plurality of rooms, and a temperature sensor for detecting the temperature of each of the plurality of rooms. And opening / closing the plurality of on-off valves based on the presence / absence of a person in each room detected by the person detection sensor and the temperature of each room detected by the temperature sensor to control the temperature of the plurality of rooms for each room. A central air conditioning system for air conditioning the plurality of rooms with one air conditioning unit,
The control device is configured to turn on a person detection process for detecting the presence or absence of a person for each of the plurality of rooms and a occupancy flag indicating a person's occupancy in a manned room in which the person is detected in the person detection process. Is controlled to a normal temperature range ΔT between the normal outside air temperature side limit temperature Tc1 close to the outside air temperature and the normal anti-outside air temperature side limit temperature Tc2 far from the outside air temperature with the normal setting temperature T set in advance. The normal air-conditioning mode process to be performed and an unattended room in which no person is detected in the human detection process further than the normal outside air temperature side limit temperature Tc1 across the absent set temperature t closer to the outside air temperature than the normal set temperature T Absence processing for implementing energy-saving air-conditioning that is controlled in the absence temperature range Δt between the outside temperature side limit temperature tc1 and the absence outside anti-air temperature side limit temperature tc2 close to the outside temperature, and the absence set temperature t Rapid air-conditioning mode transition processing for rapidly air-conditioning the room controlled to the normal set temperature T, and the temperature detected by the temperature sensor is the normal outside air temperature side limit temperature Tc1 or the absent outside air temperature side limit When the temperature tc1 is reached, the on-off valve is opened, and when the normal anti-outside air temperature side limit temperature Tc2 or the absence anti-outside air temperature side limit temperature tc2 is reached, the on-off valve is closed,
The control device repeatedly controls the plurality of rooms as control target rooms in order, and when executing the normal air conditioning mode processing in the control target room, in the non-control target room different from the control target room When the rapid air-conditioning mode transition process is executed, the non-control target room rapid air-conditioning priority process for performing rapid air-conditioning with priority on the non-control target room in the normal air-conditioning mode process in the control target room is executed,
The non-control target room rapid air conditioning priority process is:
When the temperature of the control target room detected by the temperature sensor is compared with the temperature of the non-control target room, and the temperature of the non-control target room is farther from the outside air temperature than the control target room, the control target room It is determined whether or not the air conditioning stop flag for stopping the air conditioning of the vehicle is on. If the air conditioning stop flag is on, the air conditioning stop flag is turned off, and the temperature of the control target room is set to the normal temperature range ΔT. Temperature comparison process controlled by
In the temperature comparison process, when the temperature of the non-control target room is closer to the outside air temperature than the control target room, the temperature of the control target room is set to the restricted outside air temperature side closer to the outside air temperature than the normal outside air temperature limit temperature Tc1 Control is performed between a limit temperature Td1 and a limit anti-outside air temperature side limit temperature Td2 set between the normal outside air temperature side limit temperature Tc1 and the normal counter air temperature side limit temperature Tc2. Control target room restriction air conditioning processing for turning on the air conditioning stop flag and closing the on-off valve provided in the air conditioning duct of the control target room;
When the air conditioning stop flag in the room to be controlled is on, it is determined whether the air conditioning restriction flag in the room to be controlled is on, and when the air conditioning restriction flag in the room to be controlled is off, A temperature arrival determination process for determining whether or not the temperature of the control target room detected by the temperature sensor has reached the limit outside air temperature side limit temperature Td1;
When the temperature of the room to be controlled reaches the limit outside air temperature side limit temperature Td1, the limit outside air temperature side limit temperature Td1 is set to the normal outside air temperature side limit temperature Tc1, and is provided in the air conditioning duct of the control object room. A control target room normal air conditioning process for opening the on-off valve being turned on and turning on the air conditioning restriction flag of the control target room;
Central air conditioning system characterized by including. In the temperature comparison process,
The difference between the limit outside air temperature side limit temperature Td1 and the limit counter outside air temperature side limit temperature Td2 is set to the normal temperature range ΔT,
The limit anti-outside air temperature side limit temperature Td2 is set between the normal set temperature T and the normal anti-outside air temperature side limit temperature Tc2.
In the non-control target room rapid air conditioning priority processing,
When the transition to the rapid air-conditioning mode transition process is performed in the non-control target room, between the limit outside air temperature side limit temperature Td1 and the limit counter air temperature side limit temperature Td2 for the first temperature control of the control target room The central air conditioning system according to claim 2, wherein the temperature control is performed at the center. The limit anti-outside air temperature side limit temperature Td2 is set to the current temperature of the control target room detected by the temperature sensor in the control target room limit air conditioning process,
3. The central air conditioning system according to claim 2, wherein the limit outside air temperature side limit temperature Td <b> 1 is set in a range of the normal temperature range ΔT from the limit counter outside air temperature side limit temperature Td <b> 2.   When the temperature of the control target room detected by the temperature sensor first reaches the limit anti-outside air temperature side limit temperature Td2 after the temperature comparison process is started, the limit anti-outside air temperature side limit temperature Td2 is set to the normal setting. 5. The central air conditioning system according to claim 4, wherein the central air conditioning system is set between a temperature T and the normal outside air temperature side limit temperature Tc2.

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