JP5083190B2 - 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 resident is present among a plurality of rooms provided in a house. In a room where no resident is present, it has been proposed to control to an energy-saving temperature having 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 condition that the resident is present or absent as in Patent Document 1, it is difficult to quickly change the temperature of the room where the resident entered even if the resident 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, the resident can maintain the air-conditioning of multiple rooms while the occupant wants to move from the energy-saving temperature to the comfortable temperature in the shortest possible time. It is difficult to rapidly change only the room that has entered from the energy-saving temperature to the comfortable temperature. As a result, there is a problem that the change in the temperature of the room in which the room has entered becomes gradual as compared with, for example, a room air conditioner, causing discomfort to the residents.

Therefore, the present invention has been made in view of the above-described problems, and an object thereof is to provide a central air conditioning system that can respond to a rapid temperature change while maintaining the overall air conditioning of a house.
Another object of the present invention is to cope with a rapid temperature change while maintaining the overall air conditioning of a house, and to eliminate the influence of other rooms when controlling the temperature of one room. It is an object of the present invention to provide a central air conditioning system in which control can be easily changed even when the design is changed.

  In the first aspect of the present invention, when a person is detected in any one of a plurality of rooms provided in the house, the control device changes the operation mode of the air conditioning in the control target room from which the person is detected from the energy saving air conditioning. Switch to rapid air conditioning. The control device closes an on-off valve provided in an air conditioning duct connected to a non-control target room other than the control target room from the air conditioning unit when rapidly air-conditioning the control target room in which a person is detected. As a result, the air-conditioning unit supplies air or cold air that has been air-conditioned to a room to be controlled in which a person has been detected, and air or air that has not been air-conditioned is not supplied to a non-control-object room in which no person is detected. As a result, cold air or warm air from the air conditioning unit is intensively supplied to the room to be controlled switched from energy-saving air conditioning to rapid air conditioning. On the other hand, since there is no person in the non-control target room, there is no discomfort even if the supply of cold air or warm air is interrupted. When the rapid air conditioning in the control target room is completed, the cold air or warm air generated by the air conditioning unit is supplied again to each room of the house including the non-control target room. Therefore, it is possible to respond to a rapid temperature change while maintaining the overall air conditioning of the house.

  According to the second aspect of the present invention, when no person is detected in the non-control target room, the duct closing flag indicating that the opening / closing valve is closed is not only turned on, but the opening / closing valve is closed. That is, when no person is detected in the non-control target room, not only the duct close flag is turned on, but also the air-conditioning duct connected to the non-control target room is closed by the on-off valve. Thereby, the on-off valve is opened and closed regardless of the presence or absence of control in other control target rooms or non-control target rooms. Therefore, processing can be simplified.

  In a third aspect of the invention, when a person is detected in any of a plurality of rooms provided in the house, the control device changes the operation mode of the air conditioning in the control target room from which the person is detected from the energy saving air conditioning. Switch to rapid air conditioning. The control device closes an on-off valve provided in an air conditioning duct connected to a non-control target room other than the control target room from the air conditioning unit when rapidly air-conditioning the control target room in which a person is detected. As a result, the air-conditioning unit supplies air or cold air that has been air-conditioned to a room to be controlled in which a person has been detected, and air or air that has not been air-conditioned is not supplied to a non-control-object room in which no person is detected. As a result, cold air or warm air from the air conditioning unit is intensively supplied to the room to be controlled switched from energy-saving air conditioning to rapid air conditioning. On the other hand, since there is no person in the non-control target room, there is no discomfort even if the supply of cold air or warm air is interrupted. When the rapid air conditioning in the control target room is completed, the cold air or warm air generated by the air conditioning unit is supplied again to each room of the house including the non-control target room. Therefore, it is possible to respond to a rapid temperature change while maintaining the overall air conditioning of the house. In the invention according to claim 3, the control device controls only the opening / closing of the on-off valve in the room to be controlled. Therefore, the processing by the control device is completed only by the control in the control target room, and does not affect the control in other control target rooms or non-control target rooms. As a result, the control routine and procedure are simplified. Therefore, even when ex-post maintenance is performed, or when changes are made to specifications or design due to product improvements, it is easy to add or change controls, and it is easy to divert controls, so past development The specifications stored in can be reused without changing them.

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. The ends of the air conditioning ducts 21 to 24 on the side of the rooms A to D form outlets 25 to 28 through which cool air or warm air supplied from the air conditioning unit 12 blows out. 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. Thereby, the control apparatus 60 controls temperature based on the presence and temperature of the person 70 for each room AD.

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 T1 as shown in FIG. In the energy saving air-conditioning mode, each of the rooms A to D is set in advance and is controlled to the absent set temperature T2 having a smaller load than the normal air-conditioning. For example, when the normal set temperature T1 is set to 25 ° C. during cooling, the absent set temperature T2 is set to 28 ° C. with a smaller load. Conversely, when the normal set temperature T1 is set to 25 ° C. during heating, the absent set temperature T2 is set to 22 ° C. or the like with a smaller load.

  In the rapid air-conditioning mode, for example, as shown in FIG. 1, the room A in which the person 70 is detected is intensively air-conditioned in order to quickly shift to the preset normal set temperature T1. As a result, the room A that is rapidly air-conditioned moves to the normal set temperature T1 more rapidly than the normal air-conditioning indicated by the broken line as indicated 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 T1 as shown by the solid line in FIG. 4B, whereas the rapid air conditioning of the room A is performed in the rooms B, C, and D other than the room A. Since the supply of cold air or warm air stops during this period, the room temperature changes (in the case of cooling), as shown in FIG. However, when the room A is rapidly air-conditioned, the person 70 is absent from the room B, the room C, and the room D, and even if the temperature of the room B, the room C, and the room D changes, the person 70 is uncomfortable. There is nothing. On the other hand, in the normal air conditioning mode and the energy saving air conditioning mode, for example, as shown in FIG.

(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 startup person detection process for detecting the presence or absence of a person 70 for each of the rooms A to D at the time of startup (S200). In the activation person detection process, when the air conditioning unit 12 is activated, 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 a person for each of the rooms A to D based on the electrical signals output from the person detection sensors 51 to 54 provided in the rooms A to D.

  The control device 60 sets the occupancy flag of the person 70 to “on” in the starting manned room in which the person 70 is detected in S200, and performs normal air conditioning for controlling the starting manned room to the normal set temperature T1. The normal air conditioning process to be executed is executed (S300). On the other hand, the control device 60 executes an energy-saving air-conditioning process that implements the energy-saving air-conditioning that is controlled to the set temperature T2 in the absence in the unattended startup 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 C in S800 are substantially the same as the air conditioning control process for room A, and thus the description thereof is omitted. 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 person 70 is detected in the room A in S510 and the air-conditioning mode confirmed in S530 is the normal air-conditioning mode, the room A is continuously occupied by the person 70, and the normal set temperature T1 is set in the normal air-conditioning mode. Is controlled. Therefore, the control device 60 executes normal air conditioning mode processing for maintaining the normal air conditioning mode.

  On the other hand, 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 proceeds to the rapid air-conditioning mode processing for continuing the rapid air-conditioning mode. The process proceeds (S570). That is, 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, the rapid air conditioning mode in which the room A is quickly controlled to the normal set temperature T1 is continued. Therefore, the control device 60 executes a process during the rapid air conditioning mode that maintains 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 transfer process (S590). That is, 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, the room A is controlled to the absent set temperature T2 having a smaller load than the normal set temperature T1. Is in the stage of shifting to a state controlled to the normal set temperature T1. 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.

  The control device 60 ends the process for the room A by executing any of the absence process in S520, the normal air conditioning mode process in S550, the rapid air conditioning mode process in S570, or the rapid air conditioning mode transition process in S590. , The process proceeds to room B in S600.

  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. 7 (S511). Then, when the human detection sensor 51 reacts in S511, the control device 60 determines that the person 70 is present in the room A, turns on the room presence flag for the room A (S512), and proceeds to S530. . 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. 8, the flow of the absence process in S520 described above will be described.
If the controller 60 determines that the person 70 is not 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 is “ON” for the room A. (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 when the central air conditioning system 10 is activated, the occupancy flag is “ON” in S300, and S510. Is also turned on when the presence of the person 70 is confirmed in the room A in the person detection process in FIG. 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 person 70 is present in the room A when the central air-conditioning system 10 is activated, but the person 70 leaves the room A after that, the control unit 60 sets the occupancy flag for the room A to “OFF” in S522. To.

  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”.

  When the control device 60 determines in S521 that the occupancy flag of the room A is “off” (S521: No), or when the normal air conditioning flag is turned “off” in S523, the duct A close flag of the room A is “ It is determined whether or not it is “ON” (S524). The duct closing flag is “ON” when the air conditioning duct 21 is closed by the on-off valve 31 provided in the air conditioning duct 21 of the room A. Therefore, the control device 60 determines that the opening / closing valve 31 should close the air conditioning duct 21 in the room A by performing rapid air conditioning in each room air conditioning process in any of the rooms B to D other than the room A. There is a possibility. Therefore, the control device 60 determines whether or not the duct closing flag for the room A is “ON”.

  When the duct close flag of the room A is “ON” in S524 (S524: Yes), the control device 60 is connected to the room A along with the rapid air-conditioning in any of the rooms B to D other than the room A. Assuming that the duct 21 should be closed, the air-conditioning duct 21 connected to the room A is closed with the on-off valve 31 (S525). On the other hand, when the control unit 60 determines that the duct close flag of the room A is not “on”, that is, “off” in S524 (S524: No), the control device 60 shifts to the energy saving air conditioning process for controlling the room A in the energy saving air conditioning mode. (S526). As described above, when the duct close flag of the room A is “ON”, the rapid air-conditioning process is executed in any of the room B to the room D other than the room A. Therefore, when the duct close flag of the room A is “ON”, the control device 60 closes the air conditioning duct 21 connected to the room A with the opening / closing valve 31 and cool air or warm air supplied from the air conditioning unit 12 enters the room A. Block inflow. Thereby, the cold air or the warm air supplied from the air conditioning unit 12 is restricted from flowing into the room A where the person 70 is absent, and is supplied intensively to any of the rooms B to D where the rapid air conditioning process is performed. Is done. Further, when the duct close flag of the room A is not “ON”, the room B to the room D other than the room A are not subjected to the rapid air conditioning process. Therefore, when the duct close flag of the room A is “off”, the control device 60 controls the room A in the absence of the person 70 in the energy saving air conditioning mode.

  The control device 60 closes the air conditioning duct 21 connected to the room A in S525 with the on-off valve 31 or shifts to the energy saving air conditioning processing for the room A in S526, and then ends the processing for the room A, and the room B in S600. Transition 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. 6 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 the temperature of the room A is within the temperature control 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 temperature control range Δt. The temperature control range Δt is a temperature range allowed for the normal set temperature T1 set for the room A. The temperature control range Δt is set as a range of several degrees up and down with respect to the normal set temperature T1. For example, when the normal set temperature T1 of the room A is 25 ° C., the temperature control range Δt is set as 25 ° C. ± 3 ° C.

  When the control device 60 determines that the temperature of the room A is within the temperature control 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). Then, the control device 60 performs duct return processing (S535). In the duct return process, the open / close valves 32, 33, 34 of the air conditioning ducts 22, 23, 24 connected to the room B, the room C, and the room D other than the room A are opened. When the temperature of the room A is within the temperature control range Δt, the temperature of the room A approximates the normal set temperature T1. Therefore, even if the normal air conditioning is continued for the room A, the temperature of the room A is maintained at the normal set temperature T1. Therefore, when the temperature of the room A is within the temperature control range Δt, the control device 60 turns on the normal air conditioning flag for performing the normal air conditioning to “on” and continues the rapid air conditioning in order to continue the normal air conditioning for the room A. Turn off the flag. Further, since the controller 60 does not require rapid air conditioning for the room A, the controller 60 opens the on-off valves 32, 33, 34 of the air conditioning ducts 22, 23, 24 connected to the room B, the room C, and the room D, Air conditioning is performed on room B, room C, and room D. This is because the open / close valves 32, 33, 34 of the air conditioning ducts 22, 23, 24 connected to the room B, the room C, and the room D are closed if the room A is performing rapid air conditioning in the immediately preceding process. It is because it is thought that it is done. That is, by performing the duct return process in S535, the open / close valves 32, 33, and 34 of the room B, the room C, and the room D that were closed in the immediately preceding process are returned to the open state. When the normal air conditioning flag of the room A is turned “ON” in S533, the rapid air conditioning flag of the room A is turned “OFF” in S534, and the control unit 60 performs duct return processing in S535, the process proceeds to S540. A is maintained in normal air conditioning mode.

  When determining that the temperature of the room A is not within the temperature control 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” (S536). . When the temperature of the room A is not within the temperature control range Δt, rapid air conditioning is required to shift the room A to the normal set temperature T1. 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 S536, and if the rapid air-conditioning flag is “ON” (S536: Yes), it is in the rapid air-conditioning mode. It judges and transfers to S560, and in order to continue rapid air conditioning, it transfers to the process in rapid air-conditioning mode in S570. Further, if the rapid air-conditioning flag is not “ON” (S536: 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)
Based on FIG. 10, the flow of the rapid air-conditioning mode transition process will be described.
When the rapid air conditioning flag of the room A is not “ON” in S536 shown in FIG. 9, the control device 60 proceeds to the rapid air conditioning mode transition process as described above. This rapid air-conditioning mode transition process is executed when the person 70 enters the room A when the energy-saving air-conditioning mode continues because the room 70 is not confirmed for the room A, for example. That is, when the person 70 is not present in the room A and the energy saving air-conditioning mode is continued, the temperature of the room A is controlled to the absent set temperature T2 having a smaller load than the normal set temperature T1. Therefore, when the person 70 enters the room A, the temperature of the room A is considered to be outside the temperature control range Δt set based on the normal set temperature T1. Therefore, the control device 60 executes a rapid air-conditioning mode transition process for switching the operation of the room A from the energy-saving air-conditioning mode to the rapid air-conditioning mode.

  When the controller 60 confirms that the person 70 has entered the room A in S510, the controller 60 turns on the occupancy flag indicating that the person 70 exists in 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). Furthermore, the control device 60 determines whether or not the duct close flag is “ON” for the room A (S593). That is, the control device 60 determines whether or not the duct closing flag for closing the air conditioning duct 21 is “ON” for the on-off valve 31 that opens and closes the air conditioning duct 21 connected to the room A. This is because when the rapid air conditioning is performed in any of the room B, the room C or the room D other than the room A, the duct closing flag is set to close the air conditioning duct 21 connected to the room A with the opening / closing valve 31. This is because it may be “on”.

  When the duct closing flag is “ON” for the room A in S593 (S593: Yes), the control device 60 sets the duct closing flag for the room A to “OFF” (S594). When the duct close flag is not “ON” for the room A in S593 (S593: No) and when the duct close flag for the room A is “OFF” in S594, the control device 60 is the target of control. An occupancy confirmation process for confirming occupancy of the person 70 in the rooms B, C, and D, which are non-control target rooms other than the room A, is executed (S595). Then, the control device 60 fully opens the on-off valve 31 provided in the air conditioning duct 21 connected to the room A in order to perform rapid air conditioning on the room A (S596).

(Processing during rapid air conditioning mode)
Based on FIG. 11, the rapid air conditioning mode processing will be described.
When the rapid air-conditioning flag for the room A is “ON” in S536 shown in FIG. 9, the control device 60 proceeds to the rapid air-conditioning mode process as described above. This rapid air-conditioning mode process is performed when the rapid air-conditioning mode is performed for the room A in the immediately preceding process, and the rapid air-conditioning mode is maintained for the room A in this process as well.

  When determining that the room A is in the rapid air-conditioning mode process in the air-conditioning mode confirmation process shown in FIG. 9, the control device 60 executes the presence-in-room confirmation process (S571). In order to maintain the rapid air-conditioning mode for the room A, it is a condition that the person 70 is absent in any of the other rooms B, C, and D. That is, when the room A is in the rapid air conditioning mode, the air conditioning of the room B, the room C, and the room D is temporarily interrupted, and the cold air or warm air generated by the air conditioning unit 12 is supplied to the room A in a concentrated manner. Therefore, the control device 60 executes the presence confirmation process in the room B, the room C, and the room D during the rapid air-conditioning mode process.

(Normal air conditioning mode processing)
Based on FIG. 12, the flow of the normal air conditioning mode processing will be described.
In the air conditioning mode confirmation process in S530, the control device 60 determines that the normal air conditioning flag of the room A is “ON” in S531 (S531: Yes), and the temperature of the room A is the temperature control range Δt in S532. When it is determined that it is within (S532: Yes), the process proceeds to the normal air conditioning mode process as described above.

  If 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. 9, 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. The control device 60 controls the temperature of the room A based on the temperature of the room A acquired in S551 and the normal set temperature T1 set in the room A (S552). The control device 60 maintains the temperature of the room A at the normal set temperature T1 by controlling the opening degree of the on-off valve 31, the operating amount of the air conditioning unit 12, and the like.

(Energy-saving air conditioning processing)
Based on FIG. 13, the flow of energy-saving air-conditioning processing will be described.
In the absence process in S520, the control device 60 executes the energy saving air conditioning process when it is determined in S524 that the duct close flag of the room A is not “ON” (S524: No) (S526). In the case of the energy saving air conditioning process, the control device 60 acquires the temperature of the room A (S5261). The control device 60 acquires the temperature of the room A from the temperature sensor 41 provided in the room A. The control device 60 controls the temperature of the room A based on the temperature of the room A acquired in S5261 and the absent temperature setting temperature T2 set in the room A (S5262).

(Duct return processing)
Details of the duct return processing in S535 described above will be described with reference to FIG.
In the duct return process in S535, the control device 60 performs non-control in each of the non-control target rooms of the room B, the room C, and the room D other than the room A to be controlled in the present description among the plurality of rooms. It is determined whether or not the open / close valves 32, 33, 34 of the air conditioning ducts 22, 23, 24 connected to the target room B to the room D are in a closed state. Specifically, the control device 60 determines whether or not the open / close valve 32 of the air conditioning duct 22 connected to the room B which is a non-control target room is in a closed state (S5351). For example, when rapid air conditioning is performed for the room A, the open / close valve 32 of the air conditioning duct 22 connected to the room B is in a closed state. On the other hand, when the rapid air conditioning flag is turned off in S534, the room A shifts from the rapid air conditioning mode to the normal air conditioning mode. Therefore, the open / close valve of each air conditioning duct connected to another room such as the room B needs to be opened. As described above, when the rapid air-conditioning mode is canceled for the room A that is the control target room, the control device 60 causes the air conditioning ducts 22, 23, and 24 connected to the room B, the room C, and the room D that are the non-control target rooms. It is determined whether or not each of the open / close valves 32, 33, 34 is closed. When the open / close valve 32 of the air conditioning duct 22 connected to the room B is in the closed state, the control device 60 sets the duct closed flag of the room B to “off” (S5352). Thereby, in the next process with respect to the room B in S600, the on-off valve 32 of the air-conditioning duct 22 connected to the room B is opened. Similarly, the control device 60 determines whether or not the opening / closing valve 33 of the room C is closed (S5353), and when the opening / closing valve 33 of the room C is closed, the control device 60 sets the duct closing flag of the room C to “ “Off” (S5354). Further, the control device 60 determines whether or not the opening / closing valve 34 of the room D is closed (S5355), and when the opening / closing valve 34 of the room D is closed, the control unit 60 sets the duct closing flag of the room D to “OFF”. (S5356).

(In-room confirmation process)
Details of the occupancy confirmation processing in S571 and S595 described above will be described with reference to FIG.
In the occupancy confirmation processing in S571 and S595, the control device 60 is present in each of the non-control target rooms of the room B, the room C, and the room D other than the room A that is the control target in the present description among the plurality of rooms. It is determined whether the room flag is “ON”. Specifically, the control device 60 determines whether or not the occupancy flag of the room B that is the non-control target room is “ON” (S5751). For example, in the air conditioning control of the room B in S600 shown in FIG. 5, when the presence of the person 70 in the room B is confirmed by the processing corresponding to FIG. 11, the occupancy flag of the room B is “ON”. As described above, when the occupancy flag of the room B is not “ON” as a result of determining whether or not the occupancy flag of the room B is “ON” (S5751: No), the control device 60 enters the room B. Determines that the person 70 is absent, and sets the duct closed flag of the room B to “ON” (S5752). Similarly, the control device 60 determines whether or not the occupancy flag is “ON” for the room C (S5753), and when the occupancy flag for the room C is not “ON” (S5753: No), the room C The duct closed flag is set to “ON” (S5754). Further, the control device 60 determines whether or not the occupancy flag is “on” for the room D (S5755), and when the occupancy flag for the room D is not “on” (S5755: No), The duct closing flag is set to “ON” (S5756).

  By executing the processes shown in FIG. 5 to FIG. 15, when the person 70 enters the room A when the person 70 is not in the room A and is processed in the energy saving air-conditioning mode, the room A depends on the temperature of the room A. A shifts to the rapid air-conditioning mode. As a result, in the rooms B, C and D other than the room A, the supply of cold air or warm air from the air conditioning unit 12 is stopped, and the cold air or warm air generated by the air conditioning unit 12 as shown in FIG. It is supplied intensively to the room A which has shifted to the mode. Therefore, as shown in FIG. 4B, the temperature of the room A changes quickly.

  In the first embodiment, when a person 70 is detected in any one of a plurality of rooms A to D provided in the house 11, that is, in the room A in the first embodiment, the controller 60 detects the person 70. The operation mode of air conditioning in the room A is switched from energy-saving air conditioning to rapid air conditioning. The controller 60 is provided in the air conditioning ducts 22, 23, 24 connected from the air conditioning unit 12 to the room B, the room C, and the room D other than the room A when the room 70 where the person 70 is detected is rapidly air-conditioned. Each on-off valve 32, 33, 34 is closed. As a result, cold air or warm air is supplied from the air conditioning unit 12 to the room A where the person 70 is detected, and cold air or warm air is not supplied to the room B, the room C, and the room D where the person 70 is not detected. As a result, the cold air or warm air generated by the air conditioning unit 12 is intensively supplied to the room A switched from the energy-saving air conditioning to the rapid air conditioning, and the temperature of the room A is quickly controlled to the normal set temperature T1. On the other hand, as shown in FIG. 4C, the room B, the room C, and the room D change in room temperature due to the stop of air conditioning. However, since the person 70 is absent, even if the supply of cold air or warm air is interrupted, 70 is not uncomfortable. When the rapid air conditioning in the room A is completed, the cold air or warm air generated by the air conditioning unit 12 is supplied again to all the rooms A to D of the house 11 including the room B, the room C, and the room D. Therefore, it is possible to respond to a rapid temperature change while maintaining the overall air conditioning of the house 11.

(Second Embodiment)
A central air conditioning system according to a second embodiment of the present invention will be described. In the case of the second embodiment, the configuration of the central air conditioning system 10 is the same as that of the first embodiment, but the process flow is different. Only the differences will be described below. Specifically, in the second embodiment, the absence process and the occupancy confirmation process are different from the first embodiment.

(Out-of-office processing)
The absence processing of the second embodiment will be described with reference to FIG.
When determining that the person 70 is absent from the room A, the control device 60 executes an occupancy flag confirmation process for determining whether or not the occupancy flag is “ON” for the room A (S1521). 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” (S1522).

  When the presence flag of the room A is set to “off” in S1522, the control device 60 sets the normal air conditioning flag for the room A to “off” (S1523). In the case of the second embodiment, the control device 60 further turns off the rapid air-conditioning flag for the room A (S1524). 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 S1521 (S1521: No), or sets the rapid air-conditioning flag to “off” in S1524, the duct close flag of the room A is “ It is determined whether or not it is “ON” (S1525). When the duct close flag of the room A is “ON” in S1525 (S1525: Yes), the control device 60 ends the process without opening / closing the on-off valve 31 of the air conditioning duct 21 connected to the room A. On the other hand, when the control device 60 determines in S1525 that the duct close flag of the room A is not “ON” (S1525: No), the control device 60 shifts to an energy saving air conditioning process for controlling the room A in the energy saving air conditioning mode (S1526).

(In-room confirmation process)
The occupancy confirmation processing of the second embodiment will be described with reference to FIG.
The control device 60 determines whether or not the occupancy flag of the room B that is the non-control target room is “ON” (S15751). When the presence flag of the room B is not “ON” as a result of determining whether or not the presence flag of the room B is “ON” (S15751: No), the control device 60 determines that the person 70 is in the room B. It is determined that the user is absent, and the duct close flag of the room B is turned “ON”, and the on / off valve 32 of the air conditioning duct 22 connected to the room B is closed (S15752). Similarly, the control device 60 determines whether or not the occupancy flag is “on” for the room C (S15753). When the occupancy flag for the room C is not “on” (S15753: No), the room C Is turned on, and the on-off valve 33 of the air conditioning duct 23 connected to the room C is closed (S15754). Further, the control device 60 determines whether or not the occupancy flag is “ON” for the room D (S15755). When the occupancy flag for the room D is not “ON” (S15755: No), The duct closing flag is set to “ON” and the on-off valve 34 of the air conditioning duct 24 connected to the room D is closed (S15756).

  In the second embodiment, as described in the above-described absence process, when the duct close flag of the room A is determined to be “ON” in S1525, the control device 60 is connected to the room A unlike the first embodiment. The process ends without closing the on-off valve 31 of the air conditioning duct 21. That is, in the second embodiment, when the occupancy flag is not “ON” in the occupancy confirmation process, the duct close flag is “ON” and the air conditioning ducts 21 to 21 connected to the rooms A to D are connected. The on-off valves 31 to 34 provided at 24 are closed. As a result, the on-off valves 31 to 34 provided in the air conditioning ducts 21 to 24 connected to the rooms A to D always operate while the duct close flag is “ON” regardless of the control in the other rooms. Each air-conditioning duct 21-24 will be closed.

  With the above configuration, in the case of the second embodiment, when the person 70 is not detected in the room B, the room C, and the room D that are non-control target rooms other than the room A that is the control target, these rooms B and C In addition to turning on the duct closing flag of the room D, the on-off valves 32 to 34 are closed. That is, when the person 70 is not detected in the room B, the room C, and the room D, the duct closing flag of the room B, the room C, and the room D is not only turned on, but the room B, the room C, and the room C are directly used. The air conditioning ducts 22 to 24 to be connected are closed by the on-off valves 32 to 34. Thereby, each of the on-off valves 32 to 34 is independently opened and closed regardless of whether or not the control is performed in the room A to be controlled or the room B, the room C, and the room D that are not to be controlled. Therefore, processing can be simplified.

(Third embodiment)
A central air conditioning system according to a third embodiment of the present invention will be described. In the case of the third embodiment, the configuration of the central air conditioning system 10 is the same as that of the first embodiment and the second embodiment, but the processing flow is different. Hereinafter, the flow of processing of the central air-conditioning system 10 according to the third embodiment will be described while omitting common explanations centering on differences.

(Overall processing)
The overall processing of the central air conditioning system 10 according to the third embodiment is the same as that of the first embodiment shown in FIG. That is, the central air conditioning system 10 according to the third embodiment includes an air conditioning unit activation process (S100), an activation person detection process (S200), a normal air conditioning process (S300), an energy saving air conditioning process, and an air conditioning control process for each room (S500 to S500). S800).

(Each room air conditioning control process)
Next, the flow of each room air conditioning control process will be described with reference to FIG.
The control device 60 executes a person detection process for detecting the presence or absence of the person 70 in the room A to be controlled (S9510). When the person 70 is not detected in the room A in S9510 (S9510: No), the control device 60 proceeds to the absence process (S9520). On the other hand, when the person 70 is detected in the room A in S9510 (S9510: Yes), the control device 60 executes an air conditioning mode confirmation process for confirming the air conditioning mode of the room A (S9530). Here, when the person 70 is detected in the room A in S9510 and the air conditioning mode confirmed in S9530 is the normal air conditioning mode (S9540), the control device 60 shifts to the normal air conditioning mode processing for continuing the normal air conditioning mode. (S9550).

On the other hand, when the person 70 is detected in the room A in S9510 and the air conditioning mode confirmed in S9530 is the rapid air conditioning mode (S9560), the control device 60 returns to S600 of the entire flow shown in FIG. . 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 (S9580), the control device 60 transitions to the rapid air conditioning mode transition processing (S9590). When the processing for the room A is completed by executing any of the absence time processing in S9520, the normal air conditioning mode processing in S9550, or the rapid air conditioning mode transition processing in S9590, the processing proceeds to the room B processing in S600.
The human detection process in S9510 is the same as the flow shown in FIG. 7 described in the first embodiment. Therefore, the description of the person detection process is omitted.

(Out-of-office processing)
The absence processing in S9520 is the same as the flow shown in FIG. 8 described in the first embodiment. Therefore, the explanation about the absence process is omitted.

(Air conditioning mode confirmation process)
Next, details of the flow of the air-conditioning mode confirmation process in S9530 of FIG. 18 will be described based on FIG.
When determining that the person 70 is in the room A in the person detection process in S9510, the control device 60 determines whether or not the normal air conditioning flag of the room A is “ON” (S9531). When the control device 60 determines that the normal air conditioning flag of the room A is “ON” (S9531: Yes), the control device 60 proceeds to S9540 and maintains the room A in the normal air conditioning mode. On the other hand, when determining that the normal flag of the room A is not “ON” in S9531 (S9531: No), the control device 60 determines whether or not the temperature of the room A is within the temperature control range Δt (S9532). . The control device 60 acquires the temperature of the room A from the temperature sensor 41 of the room A, and determines whether or not the acquired temperature is within the temperature control range Δt.

  When determining that the temperature of the room A is within the temperature control range Δt (S9532: Yes), the control device 60 sets the normal air conditioning flag to “ON” for the room A (S9533) and sets the rapid air conditioning flag for the room A. “Off” is set (S9534). Then, the control device 60 proceeds to S9540 and maintains the room A in the normal air conditioning mode.

When determining that the temperature of the room A is not within the temperature control range Δt in S9532 (S9532: No), the control device 60 determines whether or not the rapid air-conditioning flag of the room A is “ON” (S9536). . If the rapid air-conditioning flag of the room A is “ON” (S9536: Yes), the controller 60 proceeds to S9560 as being in the rapid air-conditioning mode, and ends the process. Further, if the rapid air-conditioning flag is not “ON” (S9536: No), control device 60 determines that the energy-saving air-conditioning mode is set, and proceeds to S9580 to perform rapid air-conditioning mode in S9590 to rapidly air-condition room A. Transition to the migration process.
As described above, the third embodiment includes only absence processing, normal air conditioning mode processing, and rapid air conditioning mode transition processing, and does not include the rapid air conditioning mode processing in the first embodiment.

(Rapid air-conditioning mode transition processing)
Based on FIG. 20, the flow of the rapid air-conditioning mode transition process will be described.
When the rapid air conditioning flag for the room A is not “ON” in S9536 shown in FIG. 19, the control device 60 proceeds to the rapid air conditioning mode transition process as described above. Upon confirming that the person 70 enters the room A in S9510, the control device 60 sets the occupancy flag for the room A to “ON” (S9591). 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 (S9592). 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 (S9592). That is, in the third embodiment, the control device 60 sets the rapid air-conditioning flag to “ON” for the room A regardless of the room B other than the room A to be controlled, the room C, and the room 70 where the person 70 is present. If so, the on-off valve 31 of the room A is fully opened.

(Normal air conditioning mode processing)
The normal air conditioning mode process in S9550 is the same as the flow shown in FIG. 12 described in the first embodiment. Therefore, the description of the normal air conditioning mode process is omitted.

(Energy saving air conditioning mode processing)
The energy-saving air-conditioning process performed in the absence process in S9520 is the same as the flow shown in FIG. 13 described in the first embodiment. Therefore, the description of the energy saving air conditioning mode processing is also omitted.

  In the third embodiment described above, the following functions and effects are provided in addition to the functions and effects of the first embodiment. The control device 60 controls only the opening / closing of the on-off valve 31 in the room A that is the room to be controlled. Therefore, the processing by the control device 60 is completed only by the control in the room A that is the control target, and does not affect the control in the other rooms B, C, and D. As a result, the control routine and procedure are simplified. Therefore, it is easy to add or change controls when performing ex-post maintenance, when the number of rooms in the house 11 changes after the fact, or when changing specifications or design due to product improvements, etc. At the same time, diversion of control is facilitated, and the specifications accumulated in the past development can be reused without being changed.

(Other embodiments)
In the plurality of embodiments described above, the example in which the four rooms A to D are provided in the house 11 has been described, but the number is not limited as long as it is two or more. In the above-described plurality of embodiments, the room A is described as an example of the control target. However, in the other rooms B, C, and D, processes similar to the processes in the room A can be performed.

  Further, in the above embodiments, the example in which the load of the central air conditioning system 10 in the normal air conditioning mode and the energy saving air conditioning mode is increased or decreased by providing a difference between the normal set temperature T1 and the absent set temperature T2 has been described. However, for example, the load on the central air conditioning system 10 may be increased or decreased by providing a difference between the temperature control range Δt in the normal air conditioning mode and the temperature control range Δtx in the energy saving air conditioning mode. For example, when the normal set temperature is set to Tn, the temperature control range Δt in the normal air conditioning mode is set to ± 3 ° C., whereas the temperature control range Δtx in the energy saving air conditioning mode is set to ± 5 ° C. Thus, the load on the central air conditioning system 10 may be increased or decreased.

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 by which the room A is rapidly air-conditioned It is a mimetic diagram showing a house to which a central air-conditioning system by a 1st embodiment of the present invention is applied, and is a figure showing the state where all room A-room D are usually air-conditioned. 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 the temperature change in the rapid air-conditioning mode and the normal air-conditioning mode at the time of cooling in FIG. Schematic showing the overall flow of the central air conditioning system according to the first embodiment of the present 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 process in the rapid air-conditioning mode 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 flow of the energy-saving air-conditioning process of the room A in the central air-conditioning system by 1st Embodiment of this invention. Schematic which shows the flow of the duct return process in the central air conditioning system by 1st Embodiment of this invention. Schematic which shows the flow of occupancy confirmation processing 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 2nd Embodiment of this invention. Schematic which shows the flow of an occupancy confirmation process in the central air conditioning system by 2nd 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 3rd 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 3rd 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 3rd Embodiment of this invention.

Explanation of symbols

  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. Devices, A to D, denote rooms.

Claims (3)

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 detects a person in the start process for starting the air conditioning unit, the start person detection process for detecting the presence or absence of a person for each of the plurality of rooms by the person detection sensor, and the start person detection process. In the start-up manned room, a normal air-conditioning process in which normal air-conditioning is performed to turn on the occupancy flag indicating a person's occupancy and control to a preset normal set temperature, and start-up without detecting a person in the start-up human detection process In the unmanned room, an energy-saving air-conditioning process for performing energy-saving air-conditioning for controlling to a preset temperature at a preset time when there is less load than the normal air-conditioning, the normal air-conditioning process or the energy-saving air-conditioning process and the plurality of rooms Each room air conditioning control process for controlling the temperature individually for each,
Each of the room air conditioning control processes includes a person detection process in which a control target room is sequentially set for each of the plurality of rooms, and the presence or absence of a person is detected by the human detection sensor for each of the control target rooms. An air-conditioning mode confirmation process for determining whether the normal air conditioning, the rapid air-conditioning in which the air-conditioning to the control coping room is intensively performed, or the energy-saving air-conditioning is performed in the room to be controlled in which is detected, When it is determined that the normal air-conditioning is performed in the air-conditioning mode confirmation process in a state where a person is detected in the person-detection process and the person-detected state is detected in the control target room where no person is detected in the person-detection process Transition to the normal air-conditioning mode processing, and the rapid air-conditioning is performed in the air-conditioning mode confirmation processing in a state where a person is detected in the human detection processing When it is determined that the energy-saving air-conditioning is being performed in the air-conditioning mode confirmation process while a person is detected in the person detection process, the process proceeds to the rapid air-conditioning mode transition process. And
In the absence process, an occupancy flag confirmation process for determining whether or not an occupancy flag indicating the presence of a person in the control target room is on is performed. When the occupancy flag is on, The normal air-conditioning flag for performing the normal air-conditioning is turned off for the room to be controlled, and when the occupancy flag is off in the occupancy flag confirmation processing, as well as the occupancy flag and the normal While turning off any air conditioning flag, it is determined whether a duct closing flag for closing the air conditioning duct connected to the control target room with the on-off valve is on, and when the duct closing flag is on, Energy saving is performed by closing the open / close valve of the air-conditioning duct connected to the room to be controlled and energy-saving air-conditioning the room to be controlled when the duct close flag is off. Conducted a tone processing,
The air conditioning mode confirmation process determines whether or not the normal air conditioning flag corresponding to the control target room is on, and when the normal air conditioning flag is on, the normal air conditioning mode process of normal air conditioning the control target room When the normal air conditioning flag is off, the control target room is determined not to be the normal air conditioner, and the temperature of the control target room detected by the room temperature sensor is allowed with respect to the normal set temperature. A rapid air conditioner for determining whether or not the temperature is within a range and turning on the normal air-conditioning flag corresponding to the room to be controlled when the temperature of the room to be controlled is within the temperature control range. The air conditioning flag is turned off for the control target room, and is set in each air conditioning duct connected to a non-control target room other than the control target room among the plurality of rooms. The duct return process is performed to open the air-conditioning duct by opening the on-off valve, and the process proceeds to the normal air-conditioning mode process, and when the temperature of the room to be controlled is not within the temperature control range It is determined whether or not the rapid air-conditioning flag corresponding to the room to be controlled is on, and when the rapid air-conditioning flag corresponding to the room to be controlled is on, the process proceeds to a process during the rapid air-conditioning mode in which the rapid air-conditioning is continued. , When the rapid air conditioning flag corresponding to the room to be controlled is off, the process proceeds to the rapid air conditioning mode transition process,
The rapid air-conditioning mode transition process turns on the occupancy flag corresponding to the control target room and turns on the rapid air conditioning flag corresponding to the control target room when confirming that a person enters the control target room. In addition, it is confirmed whether or not a duct closing flag indicating that the on-off valve provided in the air conditioning duct connected to the controlled room is closed is on, and the duct closing corresponding to the controlled room is closed. When the flag is on, the duct close flag corresponding to the controlled room is turned off, and when the duct closed flag corresponding to the controlled room is off and the duct closed flag corresponding to the controlled room is turned off. The occupancy confirmation process for confirming presence / absence of a person in the non-control target room among the plurality of rooms is performed and the rapid air conditioning is performed. The control target room is connected to the fully open the on-off valve provided in the air-conditioning duct, and proceeds to the air conditioning control of the uncontrolled room,
The process during the rapid air-conditioning mode performs the occupancy confirmation process after the air-conditioning mode confirmation process, and proceeds to the air-conditioning control of the non-control target room,
In the normal air conditioning mode process, the temperature of the control target room is detected by the temperature sensor after the air conditioning mode confirmation process, and the temperature of the control target room is determined based on the detected temperature of the control target room and the normal set temperature. While controlling the temperature, transition to the air conditioning control of the non-control target room,
The energy-saving air-conditioning process detects the temperature of the control target room by detecting the temperature of the control target room with the temperature sensor when the duct close flag corresponding to the control target room is off in the absence process. While controlling the temperature of the room to be controlled based on the temperature and the set temperature at the time of absence, transition to air conditioning control of the non-controlled room,
The occupancy confirmation processing determines whether an occupancy flag corresponding to the non-control target room is on in the non-control target room among the plurality of rooms, and corresponds to the non-control target room. Duct closing flag setting processing for turning on a duct closing flag for closing the on-off valve provided in the air conditioning duct connected to the non-control target room for each non-control target room when the presence flag is off Including
The duct return process determines whether the open / close valve provided in each of the air conditioning ducts connected to the non-control target room closes each of the air-conditioning ducts in the double non-control target room, When the on-off valve closes the air-conditioning duct connected to the non-control target room, it includes a duct close flag release process for turning off the duct close flag of the corresponding non-control target room. Central air conditioning system. The controller is
In the absence processing, when the occupancy flag is on, the occupancy flag is turned off, and the normal air conditioning flag for performing the normal air conditioning and the rapid air conditioning flag for performing the rapid air conditioning are selected. Also turn off the room to be controlled,
In the occupancy confirmation process, in the non-control target room among the plurality of rooms, it is determined whether or not the occupancy flag corresponding to the non-control target room is on, and corresponds to the non-control target room. A duct closing flag setting process for turning on a duct closing flag for closing the on-off valve provided in the air conditioning duct connected to the non-control target room for each non-control target room when the occupancy flag is off, 2. The central air conditioning system according to claim 1, further comprising: a duct closing process for closing the on / off valve that has been turned on in the duct closing flag setting process. 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 detects a person in the start process for starting the air conditioning unit, the start person detection process for detecting the presence or absence of a person for each of the plurality of rooms by the person detection sensor, and the start person detection process. In the start-up manned room, a normal air-conditioning process in which normal air-conditioning is performed to turn on the occupancy flag indicating a person's occupancy and control to a preset normal set temperature, and start-up without detecting a person in the start-up human detection process In the unmanned room, an energy-saving air-conditioning process for performing energy-saving air-conditioning for controlling to a preset temperature at a preset time when there is less load than the normal air-conditioning, the normal air-conditioning process or the energy-saving air-conditioning process and the plurality of rooms Each room air conditioning control process for controlling the temperature individually for each,
Each of the room air conditioning control processes includes a person detection process in which a control target room is sequentially set for each of the plurality of rooms, and the presence or absence of a person is detected by the human detection sensor for each of the control target rooms. An air-conditioning mode confirmation process for determining whether the normal air conditioning, the rapid air-conditioning in which the air-conditioning to the control coping room is intensively performed, or the energy-saving air-conditioning is performed in the room to be controlled in which is detected, When it is determined that the normal air-conditioning is performed in the air-conditioning mode confirmation process in a state where a person is detected in the person-detection process and the person-detected state is detected in the control target room where no person is detected in the person-detection process Transition to the normal air-conditioning mode processing, and the rapid air-conditioning is performed in the air-conditioning mode confirmation processing in a state where a person is detected in the human detection processing Maintaining the rapid conditioning when it is determined that, the process proceeds to the person detecting process rapid conditioning mode transition process when the energy-saving air-conditioning in the conditioning mode confirmation process in a state a person is detected is determined to be implemented in,
In the absence process, an occupancy flag confirmation process is performed to determine whether or not an occupancy flag indicating the presence of a person in the controlled room is on, and the occupancy flag is on when the occupancy flag is on. The normal air-conditioning flag for performing the normal air-conditioning is turned off for the room to be controlled, and when the occupancy flag is off in the occupancy flag confirmation processing, as well as the occupancy flag and the normal Turn off all the air conditioning flags, and determine whether the rapid air conditioning flag for performing the rapid air conditioning in any of the non-control target rooms other than the control target room among the plurality of rooms is on When the rapid air-conditioning flag is on, the on-off valve of the air-conditioning duct connected to the room to be controlled is closed, and when the rapid air-conditioning flag is off, the control The elephant room to carry out energy-saving air-conditioning process of the energy-saving air-conditioning,
The air conditioning mode confirmation process determines whether or not the normal air conditioning flag corresponding to the control target room is on, and when the normal air conditioning flag is on, the normal air conditioning mode process of normal air conditioning the control target room When the normal air conditioning flag is off, the control target room is determined not to be the normal air conditioner, and the temperature of the control target room detected by the room temperature sensor is allowed with respect to the normal set temperature. A rapid air conditioner for determining whether or not the temperature is within a range and turning on the normal air-conditioning flag corresponding to the room to be controlled when the temperature of the room to be controlled is within the temperature control range. When the air conditioning flag is turned off for the room to be controlled, the process proceeds to the normal air conditioning mode process, and when the temperature of the room to be controlled is not within the temperature control range, It is determined whether or not the rapid air-conditioning flag corresponding to the room is on, and when the rapid air-conditioning flag corresponding to the room to be controlled is on, the control proceeds to the air-conditioning control of the non-control target room. When the rapid air-conditioning flag corresponding to is turned off, the process proceeds to the rapid air-conditioning mode transition process,
The rapid air-conditioning mode transition process turns on the occupancy flag corresponding to the control target room and turns on the rapid air conditioning flag corresponding to the control target room when confirming that a person enters the control target room. And fully opening the on-off valve provided in the air conditioning duct connected to the room to be controlled, transition to air conditioning control of the non-controlled room,
In the normal air conditioning mode process, the temperature of the control target room is detected by the temperature sensor after the air conditioning mode confirmation process, and the temperature of the control target room is determined based on the detected temperature of the control target room and the normal set temperature. While controlling the temperature, transition to the air conditioning control of the non-control target room,
The energy-saving air-conditioning process detects the temperature of the control target room by detecting the temperature of the control target room with the temperature sensor when the duct close flag corresponding to the control target room is off in the absence process. A central air conditioning system that controls the temperature of the room to be controlled based on the temperature and the set temperature at the time of absence, and shifts to air conditioning control of the room to be uncontrolled.

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