JP2009236408A - Air conditioning control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To providing an air conditioning control system reducing a possibility of making an air conditioning object person uncomfortable. <P>SOLUTION: The air conditioning control system can carry out energy saving control during air conditioning operation, and it is equipped with a room temperature thermistor 66, an outside air temperature thermistor 67, a calculating part 64a, and a determining part 64. In the calculating part 64a, a control execution time Te of the energy saving control is calculated such that a comfort level of an environment in an air conditioning object space at an operation stop preselected time T2 becomes a boundary part L of a predetermined range W when the energy saving control is carried out from the operation stop preselected time T2 of the air conditioning operation. In the determining part 64b, an optimum control execution time Ts being an optimum control execution time of the energy saving control is calculated by using the control execution time Te and the information. In the determining part 64b, a starting time control starting time T1 of the energy saving control is determined on the basis of the operation stop preselected time T2 and the optimum control starting time Ts. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an air conditioning control system.

  In the air-conditioning target space in which air conditioning operation is performed, comfort is often maintained for a while after the operation of the air conditioner is stopped. Therefore, conventionally, in order to realize energy saving, there is an air conditioning control system that performs stop control to stop supply of air to the air conditioning target space before a preset operation stop time of the air conditioning operation.

For example, based on an air conditioning schedule such as a preset day of the week, when stop control is started retroactively from the operation start time of the air conditioning operation, the temperature in the air conditioning target space at the operation stop time is set in advance. There is an air conditioning control system that determines a time at which a lower limit value of a suitable temperature range is set as an optimal stop time (hereinafter referred to as a control start time) (see Patent Document 1). Furthermore, in this air conditioning control system, the air supply amount control is performed so that the air supply to the air-conditioning target space is smaller than the air volume of the air-conditioning operation from the control start time to the operation stop time. For this reason, compared with the case where stop control is performed between the control start time and the operation stop time, the comfort in the air-conditioning target space can be improved.
JP 2007-132598 A

  By the way, in the air conditioning control system disclosed in Patent Document 1, the operation start time, the operation stop time, and the control start time are determined before the air-conditioning operation starts. For this reason, for example, even when the environment in the air-conditioning target space has changed since the start of the air conditioning operation, the air supply amount control is performed when the current time reaches the control start time. In this case, there is a possibility that the lower limit of the appropriate temperature range may be reached before the current time reaches the operation stop time, which may cause discomfort to the air conditioning target person.

  Then, the subject of this invention is providing the air-conditioning control system of the air conditioner which can reduce the possibility of giving discomfort to the air-conditioning subject.

  An air conditioning control system according to a first aspect of the present invention is an air conditioning control system capable of performing energy saving control in air conditioning operation, and includes an information acquisition unit, a calculation unit, and a determination unit. The information acquisition unit acquires information on at least one of environmental information in the outdoor or air-conditioning target space and an operation state of the air-conditioning operation. The calculation unit calculates a control execution time of energy saving control. The control execution time is the time when the comfort level of the environment in the air-conditioned space at the scheduled shutdown time is the boundary of the predetermined range when energy-saving control is performed retroactively from the scheduled shutdown time of the air-conditioning operation. It is. The determination unit calculates an optimal control execution time that is an optimal control execution time of the energy saving control using the control execution time and the information. The determining unit determines the control start time. The control start time is the start time of energy saving control determined based on the scheduled operation stop time and the optimum control start time.

  In the air conditioning control system according to the first aspect of the present invention, the optimum control execution time is obtained by using the control execution time and at least one of the environmental information in the outdoor or air-conditioning target space or the operation status of the air-conditioning operation. Calculated. Further, the control start time of the energy saving control is determined based on the scheduled operation stop time and the optimal control execution time. For this reason, for example, when the optimum control execution time is calculated using the environment information in the air-conditioning target space and the control execution time and the control start time of the energy saving control is determined, it is based on the scheduled operation stop time and the control execution time. Compared with the case where the control start time of energy saving control is determined, the control start time of energy saving control according to the environment in the air-conditioning target space can be determined. Therefore, even when the environment in the air-conditioning target space changes after the air-conditioning operation is started, it is possible to determine the control start time of energy saving control according to the environmental change.

  As a result, the risk of discomfort for the air conditioning subject can be reduced.

  An air conditioning control system according to a second aspect of the present invention is the air conditioning control system of the first aspect, wherein the determining unit determines a correction value according to environmental information or driving operation information. The determination unit calculates an optimal control execution time based on the correction value. For this reason, in this air-conditioning control system, the optimal control execution time can be calculated using environmental information or driving operation information.

  An air conditioning control system according to a third aspect of the present invention is the air conditioning control system of the first aspect or the second aspect, wherein the information acquisition unit is a temperature sensor provided in at least one of the outdoors and the air conditioning target space. For this reason, in this air conditioning control system, the optimal control execution time can be calculated based on the temperature in the outdoor or air conditioning target space.

  An air conditioning control system according to a fourth aspect of the present invention is an air conditioning control system capable of performing energy saving control in air conditioning operation, and includes a monitoring unit, a calculating unit, and a determining unit. The monitoring unit can monitor the environmental change in the air-conditioning target space caused by the stop control when the stop control is executed. The stop control is control for stopping at least one device among a plurality of devices operating during the air conditioning operation for a predetermined time during the air conditioning operation. The calculation unit calculates the arrival time. The arrival time is the time required for the comfort level of the environment in the air-conditioned space to reach the boundary of the predetermined range when stop control is continuously executed based on the change in the environment in the air-conditioned space. It is. The determination unit determines a time that is back by the arrival time from the scheduled stop time of the air-conditioning operation as a control start time that is a start time of the energy saving control.

  In the air conditioning control system according to the fourth aspect of the present invention, the arrival time is calculated based on the environmental change in the air conditioning target space caused by the stop control performed during the air conditioning operation. Moreover, the control start time of energy saving control is determined using the calculated arrival time. For this reason, the start time of the energy saving control according to the environment in the air conditioning target space during the air conditioning operation can be determined. Therefore, for example, even when the environment in the air-conditioning target space changes during the air conditioning operation, it is possible to determine the start time of energy saving control corresponding to the environmental change.

  As a result, it is possible to reduce the risk of discomfort to the air conditioning target person.

  An air conditioning control system according to a fifth aspect of the present invention is the air conditioning control system of the fourth aspect, wherein the monitoring unit has an acquisition unit. The acquisition unit acquires environmental information in the air conditioning target space. The acquisition unit is at least one of a temperature sensor and a humidity sensor. The temperature sensor is a sensor capable of measuring the temperature of the air-conditioning target space. The humidity sensor is a sensor capable of measuring the humidity of the air-conditioning target space. For this reason, in this air conditioning control system, the arrival time can be calculated based on a change in temperature or humidity in the air conditioning target space.

  An air conditioning control system according to a sixth aspect of the present invention is the air conditioning control system according to the fourth or fifth aspect of the present invention, further comprising a setting unit. The setting unit can set a control execution time that is an execution time during which the energy saving control is executed. Further, when the control execution time is set, the determination unit prioritizes the control execution time over the arrival time and determines the control start time.

  In the air conditioning control system according to the sixth aspect of the invention, the control execution time can be set, and the control execution time is prioritized over the arrival time calculated by the calculation unit in determining the control start time. For this reason, for example, when the control execution time is set by the air conditioning subject, the control unit determines the control start time according to the convenience of the air conditioning subject.

  As a result, the comfort of the air-conditioning subject can be improved.

  An air conditioning control system according to a seventh aspect of the present invention is an air conditioning control system capable of performing energy saving control in air conditioning operation, and includes a determination unit, a calculation unit, and a determination unit. The determination unit can determine whether or not the environmental comfort level in the air-conditioning target space is within a predetermined range. The calculation unit adjusts the first execution time of the energy saving control based on the determination result of the determination unit, and calculates the second execution time. The determination unit determines a time starting from the scheduled stop time of the air-conditioning operation by the second execution time as a control start time that is a control start time of energy saving control.

  In the air conditioning control system according to the seventh aspect of the present invention, the calculation unit adjusts the first execution time based on the determination result of the environmental comfort level in the air-conditioning target space, and calculates the second execution time. Further, the determining unit determines the control start time based on the scheduled operation stop time and the second execution time. For this reason, the start time of energy saving control according to the comfort level of the environment in the air conditioning target space can be determined.

  As a result, it is possible to reduce the risk of discomfort to the air conditioning target person.

  An air conditioning control system according to an eighth aspect of the present invention is the air conditioning control system of the seventh aspect, wherein the determination unit determines the degree of environmental comfort when the air-conditioning operation is stopped. For this reason, in this air conditioning control system, the second execution time can be calculated based on the environmental comfort level when the air-conditioning operation is stopped.

  An air conditioning control system according to a ninth aspect of the present invention is the air conditioning control system of the eighth aspect, wherein the calculating unit extends the first execution time when the environmental comfort level is within a predetermined range, thereby extending the second execution time. Calculate the execution time. In addition, when the environmental comfort level is outside the predetermined range, the calculation unit calculates the second execution time by reducing the first execution time. For this reason, for example, when the determination unit determines that the environmental comfort level when the operation is stopped is within a predetermined range, the second execution time is the time when the energy saving control is executed at the time of the determination (first execution time). Is calculated by extending. Therefore, the second execution time can be calculated based on the environmental comfort level in the past air conditioning target space.

  An air conditioning control system according to a tenth aspect of the present invention is the air conditioning control system according to any one of the seventh to ninth aspects, further comprising an acquisition unit. The acquisition unit acquires outdoor environmental conditions. Moreover, the determination part can predict the environmental change in the air-conditioning target space predicted based on the environmental conditions. Further, the determination result includes a prediction result by the determination unit.

  In the air conditioning control system according to the tenth aspect of the invention, the determination unit can predict environmental changes in the air conditioning target space. The prediction result is included in the determination result used for the calculation unit to calculate the second execution time. For this reason, the calculation unit can calculate the second execution time by using the predicted change in the environment in the air conditioning target space. Therefore, even when the outdoor environment affects the environment in the air-conditioning target space, it is possible to reduce the possibility that the comfort level in the air-conditioning target space will be outside the predetermined range during execution of the energy saving control.

  Thereby, comfort can be improved.

  An air conditioning control system according to an eleventh aspect of the present invention is the air conditioning control system according to any one of the first to tenth aspects of the present invention, further comprising a reception unit. The reception unit receives setting information of a predetermined range of comfort level. For this reason, for example, when the reception unit receives the setting information of the comfort level range from the air conditioning target person, the received setting information becomes the setting information of the range according to the preference of the air conditioning target person.

  Thereby, comfort can be improved.

  In the air conditioning control system according to the first aspect of the invention, it is possible to reduce the possibility of giving an uncomfortable feeling to the air conditioning subject.

  In the air conditioning control system according to the second aspect of the present invention, the optimal control execution time can be calculated using environmental information or driving operation information.

  In the air conditioning control system according to the third aspect of the invention, the optimal control execution time can be calculated based on the temperature in the outdoor or air conditioning target space.

  In the air conditioning control system according to the fourth aspect of the invention, it is possible to reduce the possibility that the air conditioning subject will feel uncomfortable.

  In the air conditioning control system according to the fifth aspect of the invention, the arrival time can be calculated based on a change in temperature or humidity in the air conditioning target space.

  In the air conditioning control system according to the sixth aspect of the invention, the comfort of the air conditioning subject can be improved.

  In the air conditioning control system according to the seventh aspect of the invention, it is possible to reduce the possibility that the air conditioning subject will feel uncomfortable.

  In the air conditioning control system according to the eighth aspect of the invention, the second execution time can be calculated based on the environmental comfort level when the air-conditioning operation is stopped.

  In the air conditioning control system according to the ninth aspect of the present invention, the second execution time can be calculated based on the environmental comfort level in the past air conditioning target space.

  In the air conditioning control system according to the tenth aspect, comfort can be improved.

  In the air conditioning control system according to the eleventh aspect, comfort can be improved.

-First embodiment-
FIG. 1 shows a schematic refrigerant circuit diagram of the air-conditioning system 1 according to the first embodiment of the present invention.

<Schematic configuration of air conditioning system>
The air conditioning system 1 mainly includes an air conditioner 3, a controller 50, and an air conditioning control device 60. The air conditioner 3 takes in air from the air-conditioning target space, air-conditions the acquired air to generate conditioned air, and supplies the conditioned air to the air-conditioning target space.

  The controller 50 is an operation means for an air-conditioning target person in the air-conditioning target space to input the scheduled shutdown time T2 of the air-conditioning operation or to operate settings of the air conditioner 3 or the like. In addition, the controller 50 is provided with a plurality of switches for the person to be air-conditioned to perform the above operation.

  The air conditioning control device 60 receives operation data from the air conditioner 3 or transmits instruction information such as settings transmitted from the air conditioning target person via the controller 50 to the air conditioner 3 as a control command.

(1) Air conditioner The air conditioner 3 is comprised of the indoor units 2a, 2b, 2c and the outdoor unit 20, and can perform air conditioning operations including cooling operation and heating operation. Indoor heat exchangers 4a, 4b, 4c, indoor fans 5a, 5b, 5c and the like are accommodated in the indoor units 2a, 2b, 2c. The indoor heat exchangers 4a, 4b, and 4c exchange heat with the air in contact with them to generate conditioned air. The indoor heat exchangers 4a, 4b, and 4c function to function as a refrigerant evaporator during cooling operation to cool the air taken in, and during the heating operation, function as a refrigerant condenser to remove the air taken in. Heat. The indoor fans 5a, 5b, and 5c suck the air in the air-conditioning target space, pass it through the heat exchanger, and discharge the conditioned air after the heat exchange is performed into the air-conditioning target space. Moreover, indoor unit control part 61a, 61b, 61c is incorporated in indoor unit 2a, 2b, 2c. Indoor unit control part 61a, 61b, 61c receives the control command transmitted from air-conditioning control device 60, and indoor heat exchanger 4a, 4b in indoor units 2a, 2b, 2c based on the received control command , 4c and indoor fans 5a, 5b, 5c and the like.

  Further, the outdoor unit 20 includes an outdoor unit control unit 62. Based on the control command transmitted from the air conditioning control device 60, the outdoor unit control unit 62 is configured to include the compressor 9, the outdoor fan 7, the outdoor heat exchanger 6, the four-way switching valve 8, and the outdoor unit that are housed in the outdoor unit 20. Various devices such as the expansion valve 12 are controlled.

(2) Air-conditioning control device As shown in FIG. 2, the air-conditioning control device 60 includes a communication unit 63 for transmitting and receiving instruction information and the like, a control unit 64 including a RAM, a CPU, and the like, and a storage unit 65. Yes.

  The communication unit 63 receives instruction information from the air-conditioning subject transmitted via the controller 50 and transmits the instruction information to the control unit 64. In addition, the communication unit 63 transmits the control command received from the control unit 64 to the indoor unit control units 61a, 61b, 61c and the outdoor unit control unit 62.

  The control unit 64 transmits, to the communication unit 63, a control command for the operation details performed by the air conditioner 3 based on the instruction information from the air conditioning target person transmitted from the communication unit 63. The control command for the operation content is, for example, a control command for starting or stopping the air-conditioning operation, changing the set temperature or the set air volume, and starting the energy saving control. Moreover, energy saving control is control performed at the time of air conditioning operation in order to suppress the power consumption of the air conditioner 3. In the present embodiment, the energy saving control is control for performing forced thermo-off.

  Further, during the air conditioning operation, the control unit 64 is based on the room temperature value obtained from the room temperature information detected by the room temperature thermistor 66 and the outside air temperature value obtained from the outside air temperature information detected by the outside air temperature thermistor 67. To determine whether the indoor environment is comfortable. Further, the determination by the control unit 64 is performed every predetermined time (for example, 3 minutes). Note that whether or not the indoor environment is comfortable is determined based on the comfortable range W shown in FIG. The comfortable range W is a range in which the indoor temperature value> the outdoor air temperature value + 5 in the heating operation, and a range in which the indoor temperature value <the outdoor air temperature value−5 in the cooling operation. The comfortable range W is stored in the storage unit 65 in advance.

  When it is determined that the indoor environment is not comfortable, the control unit 64 transmits a control command to the communication unit 63 so that the indoor temperature value X is within the comfortable range W. In the present embodiment, the comfort range W determines whether or not the indoor environment is comfortable using the indoor temperature and the outside air temperature, but determines whether or not the indoor environment is comfortable. If it becomes a parameter | index of, it will not be limited to this. For example, the comfort range may be set from the room temperature and the index temperature, set from the set temperature and the room temperature, set from a change in the room temperature, or set from the discomfort index of the air-conditioning target space. it can. The comfortable range set from the room temperature and the index temperature is a range where the room temperature value <28 during cooling operation when the index temperature is set to 28 degrees, for example. Moreover, the comfortable range set from the set temperature and the room temperature is, for example, a range in which the room temperature value <the set temperature value + 2 during the cooling operation. The comfortable range set based on the change in the room temperature is, for example, a range in which the current room temperature value <the room temperature value before the energy saving control is performed in the air-conditioning operation + 2 in the cooling operation. The comfortable range set from the discomfort index is, for example, a range in which the room temperature value + the room humidity value <the predetermined value or less during cooling operation.

  Further, the control unit 64 includes a calculation unit 64a and a determination unit 64b.

  The calculating unit 64a calculates a control execution time Te. As shown in FIG. 4, the control execution time Te is the room at the scheduled shutdown time T2 when energy saving control is performed retroactively from the scheduled shutdown time T2 of the air-conditioning operation set in advance by the air conditioning subject. This is the time required for the temperature value Xe to become the boundary L of the comfortable range W. Specifically, the boundary portion L of the comfortable range W is a portion where the indoor temperature value = outside air temperature value + 5 during the heating operation, and a portion where the indoor temperature value = outside air temperature value−5 during the cooling operation. is there. The calculation unit 64a calculates the control execution time Te when the control unit 64 first determines that the indoor environment is comfortable after the air-conditioning operation is started.

  The determination unit 64b determines a correction value based on the outside air temperature value obtained from the outside air temperature information detected by the outside air thermistor 67. The correction value is, for example, “−5” when the outside air temperature value is 35 or more during the cooling operation, and is “0” when the outside air temperature value is 31 or more and less than 35. When the temperature value is less than 31, it is “20”. The determination unit 64b sets the outside air temperature value at the correction value determination time Ts2 when the current time reaches a predetermined time (for example, three hours) before the scheduled operation stop time (hereinafter referred to as the correction value determination time) Ts2. Based on this, a correction value is determined. Further, the determination unit 64b calculates the optimal control execution time Ts based on the control execution time Te calculated by the calculation unit 64a and the correction value. For example, when the control execution time Te calculated by the calculation unit 64a is “10 minutes” and the outside air temperature value is “30”, the determination unit 64b determines the optimal control execution time Ts to “30 minutes”. Furthermore, as shown in FIG. 4, the determination unit 64b determines a control start time T1, which is a start time of energy saving control, based on the scheduled stop time T2 of the air-conditioning operation and the optimum control stop time Ts. Note that Ts1 in FIG. 4 indicates the time at which the controller 64 first determines that the indoor environment is comfortable.

<Control action of air conditioning control system>
FIG. 5 is a flowchart showing the flow of processing by the air conditioning system 1 of the present embodiment. This process is executed by the control unit 64 in accordance with a predetermined control program stored in the storage unit 65 of the air conditioning control device 60. In the following, an example will be described in which the air-conditioning operation has been started and the air-conditioning target person has set the scheduled stop time T2 of the air-conditioning operation.

  When the control unit 64 first determines that the indoor environment is comfortable after the air-conditioning operation is started, the calculation unit 64a of the control unit 64 calculates the control execution time Te (step S1). In addition, when the current time reaches the correction value determination time Ts2, the determination unit 64b included in the control unit 64 determines the correction value based on the outside air temperature value at the current time (Step S2). Further, the determination unit 64b calculates an optimal control execution time Ts based on the determined correction value (step S3). Then, the determination unit 64b determines the control start time T1 based on the optimal control execution time Ts and the scheduled operation stop time T2 (step S4).

  Next, when the current time reaches the control start time T1 determined by the determination unit 64b, the control unit 64 sends energy savings to the indoor unit control units 61a, 61b, 61c and the outdoor unit control unit 62 via the communication unit 63. Send a control command to start control. When a control command for starting energy saving control is transmitted from the control unit 64, the indoor unit control units 61a, 61b, 61c control various devices in the indoor units 2a, 2b, 2c, and the outdoor unit control unit 62 is controlled by the outdoor unit 20. By controlling various devices, energy-saving control is performed in air-conditioning operation.

  And when there is no instruction | indication from the air conditioning subject via the controller 50 after starting energy saving control until the present time reaches | attains scheduled stop time T2, the indoor unit control part 61a, 61b from the control part 64 is carried out. 61c and the outdoor unit control unit 62 are transmitted control commands for stopping the operation of the air conditioner 3 (steps S5, S6 and S7). When an operation stop control command is transmitted from the communication unit 63, the indoor unit control units 61a, 61b, 61c control various devices in the indoor units 2a, 2b, 2c, and the outdoor unit control unit 62 is in the outdoor unit 20. Air conditioning operation is stopped by controlling various devices.

  Further, when there is an instruction from the air conditioning subject via the controller 50 until the current time reaches the scheduled shutdown time T2, the control unit 64 indicates that the instruction content is the shutdown instruction of the air conditioner 3. Whether or not (step S8). When the instruction content is an instruction to stop the operation of the air conditioner 3, the control unit 64 transmits an operation stop control command to the indoor unit control units 61 a, 61 b, 61 c and the outdoor unit control unit 62 via the communication unit 63. To do. The indoor unit control units 61a, 61b, and 61c control various devices in the indoor units 2a, 2b, and 2c, and the outdoor unit control unit 62 controls various devices in the outdoor unit 20 to perform air conditioning operation. Stop. Further, when the instruction content is an instruction other than an instruction to stop the operation of the air conditioner 3 (for example, a change in set temperature) P1 (see FIG. 6), the control unit 64 controls the indoor unit via the communication unit 63. A control command for canceling the energy saving control and a control command based on this command are transmitted to the units 61a, 61b, 61c and the outdoor unit control unit 62 (step S9). Then, based on the control command transmitted from the communication unit 63, the indoor unit control units 61a, 61b, 61c control various devices in the indoor units 2a, 2b, 2c, and the outdoor unit control unit 62 is in the outdoor unit 20. Control various devices. In addition, the air conditioning operation is performed until an instruction to stop the operation is issued by the air conditioning subject. When the communication unit 63 receives the air conditioning operation stop instruction P <b> 2 from the air conditioning target person, the control unit 64 sends the indoor unit control units 61 a, 61 b, 61 c and the outdoor unit control unit 62 via the communication unit 63. Then, a control command for stopping the air-conditioning operation is transmitted (step S10). When a control command for stopping operation is transmitted from the communication unit 63, the indoor unit control units 61a, 61b, 61c control various devices in the indoor units 2a, 2b, 2c, and the outdoor unit control unit 62 is in the outdoor unit 20. Air conditioning operation is stopped by controlling various devices.

  In addition, when the operation start instruction of the air-conditioning operation is given from the air conditioning target person via the controller 50 after the current time reaches the scheduled operation stop time T2, the indoor unit control units 61a, 61b, 61c and the communication unit 63 A control command for starting operation is transmitted to the outdoor unit controller 62. When a control command for starting operation is transmitted from the communication unit 63, the indoor unit control units 61a, 61b, and 61c control various devices in the indoor units 2a, 2b, and 2c, and the outdoor unit control unit 62 is controlled by the outdoor unit. By controlling the various devices in 20, the operation of the air conditioner 3 is started. Also in this case, the air-conditioning operation is performed until an instruction to stop the operation is issued by the air conditioning subject. In addition, P1 and P2 in FIG. 6 have shown the time when instruction | indication P1 other than the operation stop from the air conditioning subject, and the time when the operation stop instruction P2 was received from the air conditioning subject.

<Features>
In the air-conditioning target space in which air conditioning operation is performed, comfort is often maintained for a while after the operation of the air conditioner is stopped. Therefore, conventionally, in order to realize energy saving, there is an air conditioning control system that performs stop control to stop supply of air to the air conditioning target space before a preset operation stop time of the air conditioning operation.

  For example, in the air conditioning control system disclosed in Japanese Patent Application Laid-Open No. 2007-132598, when stop control is started retroactively from the operation start time of the air conditioning operation based on an air conditioning schedule such as a preset day of the week. The time at which the temperature in the air-conditioning target space at the operation stop time becomes the lower limit value of the preset appropriate temperature range is determined as the optimal stop time (hereinafter referred to as control start time). Furthermore, in this air conditioning control system, the air supply amount control is performed so that the air supply to the air-conditioning target space is smaller than the air volume of the air-conditioning operation from the control start time to the operation stop time. For this reason, compared with the case where stop control is performed between the control start time and the operation stop time, the comfort in the air-conditioning target space can be improved.

  Incidentally, in the air conditioning control system disclosed in Japanese Patent Application Laid-Open No. 2007-132598, the operation start time, the operation stop time, and the control start time are determined before the air-conditioning operation starts. For this reason, for example, even when the outside air temperature is as high as 35 ° C. or higher during the cooling operation, the air supply amount control is performed when the current time reaches the control start time. In this case, there is a possibility that the lower limit of the appropriate temperature range may be reached before the current time reaches the operation stop time, which may cause discomfort to the air conditioning target person.

  Therefore, in the above embodiment, the optimal control execution time Ts is calculated based on the control execution time Te calculated by the calculation unit 64a and the correction value determined based on the outside air temperature value. Further, the control start time T1 is determined based on the scheduled stop time T2 of the air-conditioning operation and the calculated optimum control stop time Ts. For this reason, for example, when the outside air temperature is 35 ° C. or higher during the cooling operation, the correction value is “−5”, and the optimal control stop time Ts is shorter than the control stop time Te. Therefore, it is possible to reduce the possibility that the current time reaches the boundary portion L of the comfort range W before reaching the scheduled operation stop time T2.

  Thereby, the possibility of giving an uncomfortable feeling to the air conditioning subject can be reduced.

  Further, in the conventional air conditioning system, when the outside air temperature is as low as 30 degrees or less during the cooling operation, the energy saving control is started from the time that is earlier than the scheduled operation stop time by the control execution time. The value may stay within the comfort range for some time after the current time reaches the scheduled shutdown time. However, in the above-described embodiment, when the outside air temperature value is less than 31, the correction value is determined to be “20”, so that the optimal control stop time Ts becomes longer than the control stop time Te. For this reason, when the outside air temperature is low, energy saving can be realized.

<Modification>
(A)
In the above embodiment, the determination unit 64b calculates the optimal control execution time Ts by using a correction value determined based on the outside air temperature value obtained from the outside air temperature information detected by the outside air temperature thermistor 67. . However, it is not limited to the outside air temperature value as long as it is a condition parameter suitable for calculating the optimum control execution time of energy saving control. As the condition parameters, for example, the room temperature information detected by the room temperature thermistor 66, the preset temperature set in the air conditioner, the operation time until the operation is stopped, the use of the room where the air conditioner is installed, the time There are weather, season and so on. Further, the optimum control execution time may be calculated using a plurality of these condition parameters. If correction values are set for these condition parameters, the optimal control execution time for energy saving control can be calculated based on these conditions.

(B)
In the above-described embodiment, the comfortable range W is set in advance and stored in the storage unit 65, but may be set by a user including an air conditioning target person via an operation unit such as the controller 50. As a result, a comfortable range according to the user's preference can be set, so that comfort can be improved.

(C)
In the embodiment described above, the scheduled shutdown time T2 for the air-conditioning operation is set in advance by the air conditioning target person. However, an air-conditioning control system that can predict the scheduled operation stop time may be used. For example, as illustrated in FIG. 7, an air conditioning control device 160 including a control unit 164 having a first calculation unit 164a, a second calculation unit 166, a prediction unit 167, a first determination unit 164b, and a second determination unit 168 will be described. . In FIG. 7, the air-conditioning control device 160 having the same configuration as that of the first embodiment is not described and is given the same reference numerals.

  As described above, the control unit 164 includes the first calculation unit 164a, the second calculation unit 166, the prediction unit 167, the first determination unit 164b, and the second determination unit 168. The first calculation unit 164a calculates the control execution time Te. The first determining unit 164b determines a correction value based on the outside air temperature value obtained from the outside air temperature information detected by the outside air temperature thermistor 169. The first determination unit 164b calculates the optimal control execution time Ts based on the control execution time Te and the correction value calculated by the first calculation unit 164a. Furthermore, the first determination unit 164b determines a control start time T1, which is a start time of energy saving control, based on a scheduled stop time T2 of air conditioning operation and an optimal control stop time Ts described later.

  The second calculation unit 166 calculates the normal distribution based on the past operation stop time within a predetermined period (for example, one month) stored in the storage unit 165.

  The prediction unit 167 calculates the median value of the calculated normal distribution. In addition, the second determination unit 166 determines the value calculated by the prediction unit 167 as the scheduled operation stop time T2. For this reason, in this air conditioning control system, the scheduled operation stop time can be determined without the air conditioning target person setting the scheduled operation stop time.

  As a result, it is possible to save time and effort for the air conditioning target person to set the schedule.

-Second Embodiment-
The schematic refrigerant circuit of the air conditioning system 201 which concerns on 2nd Embodiment of this invention is shown in FIG. In the second embodiment, the configuration other than the control operation of the air conditioning control device and the air conditioning control system is the same as that of the first embodiment. Therefore, in 2nd Embodiment, only the control operation of the air-conditioning control apparatus 260 and the air-conditioning control system 201 is demonstrated below.

<Air conditioning control device>
As shown in FIG. 8A, the air conditioning control device 260 includes a communication unit 263 for transmitting and receiving instruction information and the like, a control unit 264 including a RAM, a CPU, and the like, and a storage unit 265.

  The communication unit 263 receives the instruction information from the air conditioning target person transmitted through the controller 250 and transmits the instruction information to the control unit 264. Further, the communication unit 263 transmits the control command received from the control unit 264 to the indoor unit control units 261a, 261b, 261c and the outdoor unit control unit 262.

  The control unit 264 transmits, to the communication unit 263, a control command for the operation details performed by the air conditioner 203 based on the instruction information from the air conditioning target person transmitted from the communication unit 263. The control command for the operation content is, for example, a control command for starting or stopping the air-conditioning operation, changing the set temperature or the set air volume, and starting the energy saving control. Moreover, energy saving control is control performed at the time of an air conditioning operation | movement in order to suppress the power consumption of the air conditioner 203. FIG. In the present embodiment, the energy saving control is control for performing forced thermo-off for stopping the operation of the compressor 9 and the like. In addition, when the current time reaches a predetermined time (for example, 3 hours) before the scheduled stop time, the control unit 264 transmits a control command to perform a forced thermo-off for a predetermined time (for example, 5 minutes). To do.

  Furthermore, at the time of air conditioning operation, the control unit 264 has an indoor temperature value obtained from room temperature information detected by the connected room temperature thermistor 266 and an outside air temperature value obtained from outside air temperature information detected by the outside air temperature thermistor. Based on the above, it is determined whether or not the indoor environment is comfortable. Further, the determination by the control unit 264 is performed every predetermined time (for example, 3 minutes). Note that whether or not the indoor environment is comfortable is determined based on the comfortable range W shown in FIG. The comfortable range W is a range in which the indoor temperature value> the outdoor air temperature value + 5 in the heating operation, and a range in which the indoor temperature value <the outdoor air temperature value−5 in the cooling operation. The comfortable range W is stored in the storage unit 265 in advance.

  When it is determined that the indoor environment is not comfortable, the control unit 264 transmits a control command to the communication unit 263 so that the indoor temperature value X is within the comfortable range W. In the present embodiment, the comfort range W determines whether or not the indoor environment is comfortable using the indoor temperature and the outside air temperature, but determines whether or not the indoor environment is comfortable. If it becomes a parameter | index of, it will not be limited to this.

  Furthermore, the control unit 264 includes a monitoring unit 264c, a calculation unit 264a, and a determination unit 264b.

  The monitoring unit 264c can acquire the room temperature value from the room temperature information detected by the room temperature thermistor 266. In this embodiment, the room temperature thermistor 266 is connected to the control unit 264, but may be connected to the monitoring unit 264c. In addition, the monitoring unit 264c monitors the change in the indoor temperature information in the air-conditioning target space that is generated when the forced thermo-off is performed when the current time reaches a time that is a predetermined time before the scheduled operation stop time T2. Specifically, as shown in FIG. 10, the room temperature value is acquired from the room temperature information in the elapsed time Tw2 from the time Ts2 when the forced thermo-off is started to the time Ts3 when the forced thermo-off is canceled, The degree D of the change with time of the room temperature value X at is calculated.

  When the forced thermo-off continues to be executed based on the degree D of the change over time in the room temperature value X calculated by the monitoring unit 264c, the calculation unit 264a moves the room temperature value X to the boundary portion L of the comfortable range W. An arrival time Tw3, which is a time necessary for reaching, is calculated. Specifically, the boundary portion L of the comfortable range W is a portion where the indoor temperature value = outside air temperature value + 5 during the heating operation, and a portion where the indoor temperature value = outside air temperature value−5 during the cooling operation. is there.

  The determination unit 264b is a control start time that is a start time of the energy saving control, which is a time that is traced back by the arrival time Tw3 calculated by the calculation unit 264a from the scheduled shutdown time T2 of the air-conditioning operation preset by the air conditioning target person. Determine to T1.

<Control action of air conditioning control system>
FIG. 11 is a flowchart showing a flow of processing by the air conditioning system 201 of the present embodiment. This process is executed by the control unit 264 in accordance with a predetermined control program stored in the storage unit 265 of the air conditioning control device 260. In the following, an example will be described in which the air-conditioning operation has been started and the air-conditioning target person has set the scheduled stop time T2 of the air-conditioning operation.

  When the current time reaches a time Ts2 that is a predetermined time (for example, 3 hours) before the scheduled operation stop time T2, the control unit 264 uses the communication unit 263 to control the indoor unit control units 261a, 261b, 261c and the outdoor unit control unit. A control command for executing forced thermo-off is transmitted to 262 (step S21). When a control command for executing forced thermo-off is transmitted from the control unit 264, the indoor unit control units 261a, 261b, and 261c control various devices in the indoor units 202a, 202b, and 202c, and the outdoor unit control unit 262 includes the outdoor unit 220. By controlling various devices, forced thermo-off is performed in the air-conditioned operation. At this time, the monitoring unit 264c acquires the room temperature value from the room temperature information at the time when the forced thermo-off is started and the time when the forced thermo-off is released. Thereafter, the monitoring unit 264c calculates the degree D of the change over time of the indoor temperature value X in the air-conditioning target space caused by the forced thermo-off (step S22). Next, the calculation unit 264a calculates the arrival time Tw3 based on the degree D of the temporal change in the room temperature value X (step S23). Further, the determination unit 264b determines a time that is back from the scheduled stop time T2 of the air-conditioning operation by the arrival time Tw3 calculated by the calculation unit 264a as the control start time T1 (step S24).

  When the current time reaches the control start time T1 determined by the determination unit 264b, the control unit 264 controls the energy saving control to the indoor unit control units 261a, 261b, 261c and the outdoor unit control unit 262 via the communication unit 263. Send a start control command. When a control command for starting energy saving control is transmitted from the control unit 264, the indoor unit control units 261a, 261b, and 261c control various devices in the indoor units 202a, 202b, and 202c, and the outdoor unit control unit 262 includes the outdoor unit 220. By controlling various devices, energy-saving control is performed in air-conditioning operation.

  And when there is no instruction | indication from the air conditioning subject through the controller 250 after the present time starts energy saving control until it reaches the scheduled stop time T2, the indoor unit control units 261a, 261b, A control command for stopping the operation of the air conditioner 203 is transmitted to 261c and the outdoor unit control unit 262 (step S25, step S26, and step S27). When the operation stop control command is transmitted from the communication unit 263, the indoor unit control units 261a, 261b, and 261c control various devices in the indoor units 202a, 202b, and 202c, and the outdoor unit control unit 262 is in the outdoor unit 220. Air conditioning operation is stopped by controlling various devices.

  In addition, when there is an instruction from the air conditioning subject via the controller 250 until the current time reaches the scheduled operation stop time T2, the control unit 264 indicates the instruction to stop the operation of the air conditioner 203. Whether or not (step S28). When the instruction content is an instruction to stop the operation of the air conditioner 203, the control unit 264 transmits an operation stop control command to the indoor unit control units 261a, 261b, 261c and the outdoor unit control unit 262 via the communication unit 263. To do. The indoor unit control units 261a, 261b, and 261c control various devices in the indoor units 202a, 202b, and 202c, and the outdoor unit control unit 262 controls various devices in the outdoor unit 220, so that air conditioning operation is performed. Stop. In addition, when the instruction content is an instruction other than an instruction to stop the operation of the air conditioner 203 (for example, a change in the set temperature), the control unit 264 causes the indoor unit control units 261a, 261b, and 261c via the communication unit 263. A control command for canceling the energy saving control and a control command based on this command are transmitted to the outdoor unit control unit 262 (step S29). Based on the control command transmitted from the communication unit 263, the indoor unit control units 261a, 261b, and 261c control various devices in the indoor units 202a, 202b, and 202c, and the outdoor unit control unit 262 is in the outdoor unit 220. Control various devices. In addition, the air conditioning operation is performed until an instruction to stop the operation is issued by the air conditioning subject. When the communication unit 263 receives an instruction to stop the air-conditioning operation from the air conditioning target person, the control unit 264 sends to the indoor unit control units 261a, 261b, 261c and the outdoor unit control unit 262 via the communication unit 263. A control command for stopping the air-conditioning operation is transmitted (step S30). When an operation stop control command is transmitted from the communication unit 263, the indoor unit control units 261a, 261b, and 261c control various devices in the indoor units 202a, 202b, and 202c, and the outdoor unit control unit 262 is in the outdoor unit 220. Air conditioning operation is stopped by controlling various devices.

  Further, after the current time reaches the scheduled operation stop time T2, if there is an air conditioning operation start instruction from the air conditioning subject via the controller 250, the indoor unit control units 261a, 261b, 261c from the communication unit 263 and A control command for starting operation is transmitted to the outdoor unit control unit 262. When a control command for starting operation is transmitted from the communication unit 263, the indoor unit control units 261a, 261b, and 261c control various devices in the indoor units 202a, 202b, and 202c, and the outdoor unit control unit 262 is an outdoor unit. By controlling various devices in 220, the operation of the air conditioner 203 is started. Also in this case, the air-conditioning operation is performed until an instruction to stop the operation is issued by the air conditioning subject.

<Features>
(1)
In the above embodiment, the monitoring unit 264c acquires the room temperature value from the room temperature information in the elapsed time Tw2 from the time Ts2 when the forced thermo-off is started to the time Ts3 when the forced thermo-off is canceled, A degree D of a change with time of the room temperature value X is calculated. In addition, the calculation unit 264a is configured such that when the forced thermo-off is continuously performed based on the degree D of the temporal change in the room temperature value X calculated by the monitoring unit 264c, An arrival time Tw3 that is a time required to reach L is calculated. For this reason, the control execution time of the energy saving control according to the environment in the air-conditioning target space during the air conditioning operation can be determined.

  Moreover, in the said embodiment, the determination part 264b carries out the time which went back by the arrival time Tw3 calculated by the calculation part 264a from the scheduled stop time T2 of the air conditioning operation preset by the air conditioning subject. The control start time T1, which is the start time, is determined. For this reason, even when the environment in the air-conditioning target space changes during the air-conditioning operation, it is possible to determine the control start time T1 of the energy saving control adapted to the environmental change.

  As a result, it is possible to reduce the risk of discomfort to the air conditioning subject.

<Modification>
(A)
In the above-described embodiment, the monitoring unit 264c monitors the change in the indoor temperature information in the air-conditioning target space that occurs when the forced thermo-off is performed when the current time reaches a time before the scheduled operation stop time T2. Yes. However, if the air conditioner includes a humidity sensor that can detect humidity information in the air-conditioning target space, the monitoring unit may be able to monitor changes in the humidity information in the air-conditioning target space that occur when forced thermo-off is performed. Further, the monitoring unit may be able to monitor changes in room temperature information and humidity information. In this case, since the arrival time is calculated using not only the change in the room temperature value but also the change in the humidity value, it is possible to further reduce the possibility of the room temperature value reaching outside the comfortable range during the execution time of the energy saving control. .

  As a result, it is possible to reduce the risk of discomfort to the air conditioning target person.

(B)
In the above embodiment, the control start time T1 is determined using the arrival time Tw3 calculated by the calculation unit 264a. However, the means for determining the control start time is not limited to this. For example, as shown in FIG. 8B, the air conditioning control device 560 includes a setting storage unit 565a that stores setting information set via a controller 550 or the like by a user including a person to be air-conditioned, and the user selects the controller 550 or the like. If the control execution time, which is the time during which energy saving control is executed, can be set in advance, the determining unit 564b sets the control start time to the arrival time calculated by the monitoring unit 564c and the calculation unit 564a, or Any one of the control execution times stored in the setting storage unit 565a may be used and determined.

  Further, the control execution time stored in the setting storage unit 565a in the determination of the control start time is stored in the storage unit 565 so as to be used in preference to the arrival time calculated by the monitoring unit 564c and the calculation unit 564a. In this case, since the control start time is determined according to the convenience of the user, the comfort of the user can be improved.

-Third embodiment-
The schematic refrigerant circuit of the air conditioning system 301 which concerns on 3rd Embodiment of this invention is shown in FIG. In the third embodiment, the configuration other than the control operation of the air conditioning control device and the air conditioning control system is the same as that of the first embodiment. Therefore, in 3rd Embodiment, only the control operation of the air-conditioning control apparatus 360 and the air-conditioning control system 301 is demonstrated below.

<Air conditioning control device>
As shown in FIG. 12, the air conditioning control device 360 includes a communication unit 363 for transmitting and receiving instruction information and the like, a control unit 364 including a RAM, a CPU, and the like, and a storage unit 365.

  The communication unit 363 receives instruction information from the air conditioning target person transmitted via the controller 350 and transmits the instruction information to the control unit 364. In addition, the communication unit 363 transmits the control command received from the control unit 364 to the indoor unit control units 361a, 361b, 361c and the outdoor unit control unit 362.

  The control unit 364 transmits, to the communication unit 363, a control command for the operation content performed by the air conditioner 303 based on the instruction information from the air conditioning target person transmitted from the communication unit 363. The control command for the operation content is, for example, a control command for starting or stopping the air-conditioning operation, changing the set temperature or the set air volume, and starting the energy saving control. Moreover, energy saving control is control performed at the time of an air conditioning operation | movement in order to suppress the power consumption of the air conditioner 303. FIG. In the present embodiment, the energy saving control is control for performing forced thermo-off.

  The storage unit 365 stores a determination result and environment information, which will be described later, and a first control execution time Tw that is an execution time of the energy saving control executed last time. Note that the previously executed energy saving control is the latest energy saving control among the energy saving controls executed in the past when the current time goes back to the past.

  Furthermore, the control unit 364 includes a determination unit 364c, a calculation unit 364a, and a determination unit 364b.

  The determination unit 364c determines whether the indoor environment is comfortable based on the room temperature value obtained from the room temperature information detected by the room temperature thermistor and the outside temperature value obtained from the outside temperature information detected by the outside temperature thermistor. Judge whether or not. The determination by the determination unit 364c is performed every predetermined time (for example, 3 minutes) and at the scheduled stop time T2 of the air conditioning operation. Note that whether or not the indoor environment is comfortable is determined based on the comfortable range W shown in FIG. The comfortable range W is a range in which the indoor temperature value> the outdoor air temperature value + 5 in the heating operation, and a range in which the indoor temperature value <the outdoor air temperature value−5 in the cooling operation. The comfortable range W is stored in the storage unit 365 in advance. In the present embodiment, the comfort range W uses the indoor temperature and the outside air temperature to determine whether the indoor environment is comfortable. However, in order to determine whether the indoor environment is comfortable. If it becomes a parameter | index of, it will not be limited to this. Further, the storage unit 365 stores a result of determination as to whether or not the indoor environment at the scheduled stop time T2 determined by the determination unit 364c is comfortable (hereinafter referred to as a determination result).

  In addition, the control unit 364 transmits a control command to the communication unit 363 so that the indoor temperature value X is within the comfortable range W when the determination unit 364c determines that the indoor environment is not comfortable during the air conditioning operation. .

  The calculating unit 364a calculates the second control execution time based on the first control execution time Tw stored in the storage unit 365 and the determination result or predetermined environment information. Specifically, when the previous energy saving control is as shown in FIG. 13, the determination result at the scheduled stoppage time T2 stored in the storage unit 365 is a determination result that is comfortable. 364a calculates a time obtained by adding a predetermined time (for example, 5 minutes) to the first control execution time Tw stored in the storage unit 365 as the second control execution time. Further, when the previous energy saving control is as shown in FIG. 14, since the determination result at the scheduled stoppage time T2 stored in the storage unit 365 is a determination result that is not comfortable, the calculation unit 364a A time obtained by subtracting a predetermined time (for example, 5 minutes) from the first control execution time Tw stored in the storage unit 365 is calculated as the second control execution time. When the storage unit 365 stores environmental information indicating that the indoor environment is not comfortable, the calculation unit 364a calculates a time obtained by subtracting a predetermined time (for example, 5 minutes) from the first control execution time Tw. Calculated as the second control execution time. Furthermore, when only the first control execution time Tw is stored in the storage unit 365, the calculation unit 364a calculates the stored first control execution time Tw as the second control execution time.

  The determination unit 364b is a control that is a start time of energy saving control, which is a time that is retroactive to the second control execution time calculated by the calculation unit 364a from the scheduled shutdown time T2 of the air-conditioning operation preset by the air conditioning target person. The start time T1 is determined.

<Control action of air conditioning control system>
FIG. 15 is a flowchart showing the flow of processing by the air conditioning system 301 of the present embodiment. This process is executed by the control unit 364 in accordance with a predetermined control program stored in the storage unit 365 of the air conditioning control device 360. In the following, an example will be described in which the air-conditioning operation has been started and the air-conditioning target person has set the scheduled stop time T2 of the air-conditioning operation.

  When the current time reaches a time before the scheduled operation stop time T2 (for example, 3 hours), the calculation unit 364a uses the determination result stored in the storage unit 365 and the first control execution time Tw. 2 The control execution time is calculated (step S41). Further, the determination unit 364b determines a time that is retroactive from the scheduled operation stop time T2 by the second control execution time calculated by the calculation unit 364a as the control start time T1 (step S42).

  When the current time reaches the control start time T1 determined by the determination unit 364b, the control unit 364 controls the energy saving control to the indoor unit control units 361a, 361b, 361c and the outdoor unit control unit 362 via the communication unit 363. Send a start control command. When a control command for starting energy saving control is transmitted from the control unit 364, the indoor unit control units 361a, 361b, and 361c control various devices in the indoor units 302a, 302b, and 302c, and the outdoor unit control unit 362 controls the outdoor unit 320. By controlling various devices, energy-saving control is performed in air-conditioning operation.

  And when there is no instruction | indication from the air conditioning subject via the controller 350 after the present time starts energy saving control until it reaches the scheduled stop time T2, the operation stop time of the air conditioning operation is determined by the determination unit 364c. The comfort of the indoor environment is determined, and the determination result is stored in the storage unit 365 (step S43, step S44, step S45 and step S46). In addition, the control unit 364 transmits a control command for stopping the operation of the air conditioner 303 to the indoor unit control units 361a, 361b, 361c and the outdoor unit control unit 362 via the communication unit 363 (step S47). When an operation stop control command is transmitted from the communication unit 363, the indoor unit control units 361a, 361b, and 361c control various devices in the indoor units 302a, 302b, and 302c, and the outdoor unit control unit 362 is in the outdoor unit 320. Air conditioning operation is stopped by controlling various devices. Further, the storage unit 365 stores the second control execution time as the first control execution time Tw (step S48).

  In addition, when there is an instruction from the air conditioning subject via the controller 350 until the current time reaches the scheduled operation stop time T2, the control unit 364 indicates the instruction to stop the operation of the air conditioner 303. Whether or not (step S49). When the instruction content is an instruction to stop the operation of the air conditioner 303, the control unit 364 transmits an operation stop control command to the indoor unit control units 361a, 361b, and 361c and the outdoor unit control unit 362 via the communication unit 363. (Step S47). The indoor unit control units 361a, 361b, and 361c control various devices in the indoor units 302a, 302b, and 302c, and the outdoor unit control unit 362 controls various devices in the outdoor unit 320, whereby air conditioning operation is performed. Stop. In addition, the second control execution time is stored in the storage unit 365 as the first control execution time Tw in the storage unit 365 (step S48). In this case, since the current time has not reached the scheduled operation stop time T2, the determination unit 364c does not determine the comfort of the indoor environment at the scheduled operation stop time T2, and the storage unit 365 stores the first control execution time. Only Tw is stored.

  In addition, when the instruction content is an instruction other than an instruction to stop the operation of the air conditioner 303 (for example, a change in set temperature), the control unit 364 transmits the indoor unit control units 361a, 361b, 361c via the communication unit 363. And the control command of energy saving control cancellation | release and the control command based on this instruction | indication are transmitted to the outdoor unit control part 362 (step S50). Based on the control command transmitted from the communication unit 363, the indoor unit control units 361a, 361b, and 361c control various devices in the indoor units 302a, 302b, and 302c, and the outdoor unit control unit 362 is in the outdoor unit 320. Control various devices. The air conditioning operation is performed until an instruction to stop the operation is issued by the air conditioning subject (step S51). When the communication unit 363 receives an instruction to stop the air-conditioning operation from the air conditioning target person, the storage unit 365 stores environmental information indicating that the indoor environment is not comfortable (step S52). In addition, the control unit 364 transmits an operation stop control command for the air-conditioning operation to the indoor unit control units 361a, 361b, 361c and the outdoor unit control unit 362 via the communication unit 363 (step S47). When an operation stop control command is transmitted from the communication unit 363, the indoor unit control units 361a, 361b, and 361c control various devices in the indoor units 302a, 302b, and 302c, and the outdoor unit control unit 362 is in the outdoor unit 320. Air conditioning operation is stopped by controlling various devices. Further, the storage unit 365 stores the second control execution time as the first control execution time Tw (step S48).

  In the case where the instruction content is an instruction other than an instruction to stop the operation of the air conditioner 303, when the current time reaches the scheduled stop time T2 until the instruction to stop the operation is issued by the air conditioning subject, Although the determination unit 364c determines the comfort of the indoor environment, the control unit 364 controls the storage operation of the storage unit 365 so that the determination result by the determination unit 364c is not stored in the storage unit 365. For this reason, the storage unit 365 does not store the determination result by the determination unit 364c, and environmental information that the indoor environment stored when the operation stop instruction is issued by the air conditioning subject is not comfortable, and the first control The execution time Tw is stored.

  Further, after the current time reaches the scheduled operation stop time T2, if there is an air conditioning operation start instruction from the air conditioning target person via the controller 350, the indoor unit control units 361a, 361b, 361c and the communication unit 363 A control command for starting operation is transmitted to the outdoor unit control unit 362. When a control command for starting operation is transmitted from the communication unit 363, the indoor unit control units 361a, 361b, 361c control various devices in the indoor units 302a, 302b, 302c, and the outdoor unit control unit 362 By controlling various devices in 320, the operation of the air conditioner 303 is started. Also in this case, the air-conditioning operation is performed until an instruction to stop the operation is issued by the air conditioning subject.

<Features>
In the above embodiment, the second control execution time is calculated by the calculation unit 364a based on the first control execution time Tw stored in the storage unit 365 and the determination result by the determination unit 364c or the predetermined environment information. It has been calculated. For this reason, the second control execution time can be calculated based on whether or not comfortable maintenance has been performed in the air-conditioning target space in which the energy saving control was executed last time. Therefore, the time during which the energy saving control is executed can be adjusted based on the comfort level in the air-conditioning target space.

  Further, the determination unit 364b determines a time that is retroactive from the scheduled operation stop time T2 of the air-conditioning operation by the second control execution time as the control start time T1. Therefore, the control start time T1 can be adjusted based on the comfort level in the air conditioning target space.

  As a result, it is possible to reduce the risk of discomfort to the air conditioning subject.

<Modification>
In the above embodiment, the second control execution time is calculated mainly based on the determination result by the determination unit 364c. However, the second control execution time may be calculated using other information in addition to the determination result by the determination unit. For example, as shown in FIG. 16, an air conditioning control device 460 including a control unit 464 that includes a determination unit 464c including a prediction unit 466, a calculation unit 464a, and a determination unit 464b and is connected to an outside temperature thermistor 467. Will be described.

  The control unit 464 transmits, to the communication unit 463, a control command for the operation content performed by the air conditioner based on the instruction information from the air conditioning target person transmitted from the communication unit 363.

  The storage unit 465 stores a determination result, environmental information, a first air conditioning load that is the air conditioning load predicted by the previous prediction unit 466, and a first control execution time Tw that is an execution time of the energy saving control that was executed last time. Is remembered.

  In addition, as described above, the control unit 464 includes the determination unit 464c, the calculation unit 464a, and the determination unit 464b.

  The determination unit 464c has a comfortable indoor environment based on the room temperature value obtained from the room temperature information detected by the room temperature thermistor and the outside air temperature value obtained from the outside air temperature information detected by the outside air temperature thermistor 467. Determine whether or not. The determination by the determination unit 464c is performed every predetermined time (for example, 3 minutes) and at the scheduled stop time T2 of the air-conditioning operation. In addition, the storage unit 465 stores a result of determination as to whether or not the indoor environment at the scheduled stop time T2 determined by the determination unit 464c is comfortable (hereinafter referred to as a determination result).

  The predicting unit 466 calculates the second air conditioning load based on the outside air temperature value and the room temperature value at a predetermined time (for example, 3 hours) before the scheduled shutdown time T2 of the air-conditioning operation. The prediction unit 466 determines whether the calculated second air conditioning load is larger than the first air conditioning load stored in the storage unit 465. The second air conditioning load predicted by the prediction unit 466 is stored in the storage unit 465 as the first air conditioning load after the determination by the prediction unit 466.

  The calculation unit 464a calculates the scheduled control execution time based on the first control execution time Tw stored in the storage unit 465, the determination result stored in the storage unit 465, and predetermined environment information. Further, the calculation unit 464a calculates the second control execution time based on the scheduled control execution time and the determination result of the prediction unit 466. Specifically, when the determination unit 464c determines that the indoor environment at the planned stoppage time T2 is comfortable, the calculation unit 464a only adds a predetermined time (for example, 5 minutes) to the first control execution time Tw. The added time is calculated as the scheduled control execution time. In addition, when the determination unit 464c determines that the indoor environment at the operation stop time is not comfortable, the calculation unit 464a plans to execute the control by subtracting a predetermined time (for example, 5 minutes) from the first control execution time Tw. Calculate as time. When the storage unit 465 stores environmental information indicating that the indoor environment is not comfortable, the calculation unit 464a calculates a time obtained by subtracting a predetermined time (for example, 5 minutes) from the first control execution time Tw. Calculated as the scheduled control execution time. Furthermore, when only the first control execution time Tw is stored in the storage unit 465, the calculation unit 464a calculates the stored first control execution time Tw as the control execution scheduled time.

  Next, when the prediction unit 466 determines that the second air conditioning load is larger than the first air conditioning load, the calculation unit 464a calculates a time obtained by subtracting a predetermined time (for example, 1 minute) from the scheduled control execution time. Calculated as the second control execution time. In addition, when the prediction unit 466 determines that the second air conditioning load is smaller than the first air conditioning load, the calculation unit 464a adds the predetermined time (for example, 1 minute) to the control execution scheduled time. Calculated as control execution time. The calculation of the second control execution time by the calculation unit 464a is performed when the current time reaches a time that is a predetermined time (for example, one hour) before the scheduled operation stop time. The storage unit 465 stores the second control execution time calculated by the calculation unit 464a as the first control execution time Tw after the control start time T1 is determined by the determination unit 464b.

  The determination unit 464b is a control that is a start time of the energy saving control that is a time that is retroactive to the second control execution time calculated by the calculation unit 464a from the scheduled shutdown time T2 of the air-conditioning operation preset by the air conditioning target person. The start time T1 is determined. For this reason, in this air conditioning control system, the control execution time during which the energy saving control is executed is calculated based on the past comfort level in the air conditioning target space and the current air conditioning load in which the air conditioning operation is performed. .

  Thereby, the comfort in the air-conditioning target space can be further improved.

  Since this invention can reduce the possibility of giving an uncomfortable feeling to the air conditioning subject, application to an air conditioning control system of an air conditioner is effective.

The schematic refrigerant circuit figure of the air-conditioning control system concerning the embodiment of the present invention. The control block diagram of the air-conditioning control apparatus in 1st Embodiment of this invention. The figure which shows the change of an indoor environment. The figure which shows the relationship between the comfortable range in the air conditioning object space, its boundary part, and control execution time. The flowchart which shows the flow of control of the air-conditioning control system which concerns on 1st Embodiment of this invention. The figure which shows the change of the indoor environment in 1st Embodiment of this invention. The control block diagram of the air-conditioning control apparatus in the modification of 1st Embodiment. The control block diagram of the air-conditioning control apparatus in 2nd Embodiment of this invention. The control block diagram of the air-conditioning control apparatus in the modification of 2nd Embodiment. The figure which shows the change of the indoor environment in the modification of 2nd Embodiment. The figure which shows the degree of the time-dependent change of the indoor temperature value in the air conditioning object space. The flowchart which shows the flow of control of the air-conditioning control system which concerns on 2nd Embodiment of this invention. The control block diagram of the air-conditioning control apparatus in 3rd Embodiment of this invention. The figure which shows the change of an indoor environment. The figure which shows the change of an indoor environment. The flowchart which shows the flow of control of the air-conditioning control system which concerns on 3rd Embodiment of this invention. The control block diagram of the air-conditioning control apparatus in the modification of 3rd Embodiment.

Explanation of symbols

9 Compressor (equipment)
50 Controller (Reception Department)
66 Room temperature thermistor (information acquisition unit)
67 Outside temperature thermistor (information acquisition unit)
264a Monitoring unit 266 Room temperature thermistor (acquisition unit)
364c determination unit 467 outside temperature thermistor (acquisition unit)
565a Setting storage unit (setting unit)
1, 201, 301 Air-conditioning control system 64a, 264a, 364a calculation unit 64b, 264b, 364b determination unit L boundary portion W comfortable range (predetermined range)
T1 Control start time T2 Scheduled stop time Te Control execution time Ts Optimal control execution time

Claims (11)

An air conditioning control system capable of performing energy saving control in air conditioning operation,
An information acquisition unit (66, 67) for acquiring at least one of environmental information in the outdoor or air-conditioning target space or driving operation information of the air-conditioning operation;
When the energy saving control is performed retroactively from the scheduled shutdown time (T2) of the air-conditioning operation, the environmental comfort level in the air-conditioning target space at the scheduled shutdown time (L) is a boundary portion (L A calculation unit (64a) for calculating a control execution time (Te) of the energy saving control as follows:
An optimal control execution time (Ts) that is an optimal control execution time of the energy saving control is calculated using the control execution time and the information, and the energy saving control is performed based on the scheduled operation stop time and the optimal control execution time. A determination unit (64b) for determining a control start time (T1) that is a start time of
An air conditioning control system (1) comprising: The determination unit determines a correction value according to the environment information or the driving operation information, and calculates the optimal control execution time based on the correction value.
The air conditioning control system according to claim 1. The information acquisition unit is a temperature sensor provided in at least one of the outdoors or the air conditioning target space,
The air conditioning control system according to claim 1 or 2. An air conditioning control system capable of performing energy saving control in air conditioning operation,
When stop control for stopping at least one device (9) among a plurality of devices operating during the air conditioning operation is stopped for a predetermined time during the air conditioning operation, A monitoring unit (264c) capable of monitoring environmental changes;
Necessary for the comfort level of the environment in the air-conditioned space to reach the boundary (L) of the predetermined range (W) when the stop control is continued based on the change in the environment in the air-conditioned space A calculation unit (264a) for calculating an arrival time which is a long time;
A determination unit (264b) that determines a time starting from the scheduled stop time (T2) of the air-conditioning operation by the arrival time as a control start time (T1) that is a start time of the energy saving control;
An air conditioning control system (201). The monitoring unit has an acquisition unit (266) for acquiring environmental information in the air-conditioning target space,
The acquisition unit is at least one of a temperature sensor that measures the temperature of the air conditioning target space and a humidity sensor that measures the humidity of the air conditioning target space.
The air conditioning control system according to claim 4. A setting unit (565a) capable of setting a control execution time which is an execution time for executing the energy saving control;
The determining unit determines the control start time by giving priority to the control execution time over the arrival time when the control execution time is set.
The air conditioning control system according to claim 4 or 5. An air conditioning control system capable of performing energy saving control in air conditioning operation,
A determination unit (364c) capable of determining whether or not the comfort level of the environment in the air-conditioned space is within a predetermined range (W);
A calculation unit (364a) for adjusting a first execution time of the energy saving control based on a determination result of the determination unit and calculating a second execution time;
A determination unit (364b) that determines a time starting from the scheduled stop time (T2) of the air conditioning operation by the second execution time as a control start time (T1) that is a start time of the energy saving control;
An air conditioning control system (301) comprising: The determination unit determines a degree of comfort of the environment when the air-conditioning operation is stopped;
The air conditioning control system according to claim 7. The calculation unit calculates the second execution time by extending the first execution time when the environmental comfort level is within a predetermined range, and when the environmental comfort level is out of the predetermined range. Calculating the second execution time by reducing the first execution time;
The air conditioning control system according to claim 8. An acquisition unit (467) for acquiring outdoor environmental conditions;
The determination unit is capable of predicting an environmental change in the air-conditioning target space that is predicted based on the environmental condition,
The determination result includes a prediction result by the determination unit.
The air conditioning control system according to any one of claims 7 to 9. A reception unit (50) for receiving setting information of a predetermined range of the comfort level;
The air-conditioning control system according to any one of claims 1 to 10.

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