JP5476797B2 - Air conditioning system - Google Patents

Description

  The present invention relates to an air conditioning system, and more particularly, to a technique for changing a setting for operation control of a remote controller.

  Conventionally, an air conditioning system including a plurality of air conditioning apparatuses, a centralized control apparatus that performs centralized control of the plurality of air conditioning apparatuses, and a remote controller in which settings related to operation control of the air conditioning apparatus are input by a user has been proposed. Yes. This air conditioning system has been proposed to be able to control the operation of the air conditioner in response to daylight saving time (a system in which the clock is advanced for a predetermined time (one hour) during long days such as summer). For example, see Patent Document 1 below).

JP 2007-285615 A

  However, in the conventional air conditioning system, in order to control the operation of the air conditioning apparatus at a time corresponding to daylight saving time, the centralized control apparatus, the air conditioning apparatus, and the remote controller that constitute the air conditioning system are in daylight saving time. Since it is necessary to correspond to the operation control based on the above, it is not possible to use a mixture of these devices compatible with the operation control based on summer time and devices not compatible with the operation control based on summer time.

  The present invention has been made to solve the above problem, and even when new operation control such as daylight saving time is introduced, the device corresponding to the new operation control and the new operation control are provided. The purpose is to enable effective use of existing system configurations by making it possible to use devices that do not support the above.

The invention according to claim 1 of the present invention is an air conditioning system (1) comprising a central control device (2), an air conditioning device (3), and a remote controller (4),
The central control device (2) includes a signal transmission unit (22) that transmits a control signal (C) including predetermined control information (S) for the air conditioner (3), and the control signal (C) An information adding unit that adds control information for the remote controller (4) to an empty bit (E) that is not treated as a bit to which the control information (S) for the air conditioner (3) is added,
The air conditioner (3) includes a signal receiver (32) that receives the control signal (C) from the signal transmitter (22) of the centralized controller (2), and the signal receiver (32). The control unit (31) for controlling the operation mechanism of the air conditioner (3) according to control information (S) added to a part other than the empty bit (E) in the received control signal (C), and the reception A control signal transmitter (33) for transmitting the control signal (C) to the remote controller (4) connected to the air conditioner (3),
The remote controller (4) includes a communication unit (41) that performs communication including reception of the control signal (C) with the air conditioner (3) ,
The remote controller (4) is a first remote controller of a type corresponding to operation control based on control information for the remote controller (4) added to the empty bit (E) of the control signal (C). 4), the first remote controller (4) sets the empty bit (E) based on the control signal (C) received from the air conditioner (3) by the communication unit (41). Detecting the added control information and performing a predetermined operation control on the operation mechanism of the remote controller (4), the remote controller (4), the empty bit of the control signal (C) When the second remote controller (4) is not compatible with the operation control based on the control information for the remote controller (4) added to (E), the second remote controller (4) (C) The control information added to the base (E) is not recognized .

  In this invention, the information adding unit of the centralized control device adds the control information for the remote controller to the empty bit that is not treated as the bit to which the control information for the air conditioner is added in the control signal, thereby controlling the air conditioner. The unit controls the operation mechanism of the air conditioner according to the control information added to the part other than the empty bit in the control signal, and the control signal transmission unit connects the received control signal to the air conditioner. To send to the remote controller.

  Therefore, in the air conditioner, regardless of whether control information for the remote controller is added to the control signal, the control unit of the air conditioner controls the control information necessary for the control of the air conditioner. This control signal can be sent from the control signal transmitter to the remote controller while extracting from the signal and controlling the operation of the air conditioner. That is, it is possible to transmit control information for the remote controller to the remote controller by using an empty bit of the control signal that has been conventionally used without causing any trouble in the operation control of the air conditioner.

  Further, if the remote controller is a remote controller of a type that supports the operation control based on the control information added to the control signal, the remote controller can perform the operation control based on the control information. In the case of a remote controller that does not support the operation control based on the control information added to the control signal, the control information added to the empty bit of the control signal is ignored.

  Furthermore, even when the air conditioning system is assembled by coexisting the centralized control device and the existing centralized control device, the air conditioning device and the remote controller, as described above, use an empty bit of the control signal. Regardless of whether or not there is control information for remote controller control, operation is possible without any trouble.

Thus, according to the present invention, even when new operation control such as daylight saving time is introduced, a device that supports the new operation control and a device that does not support the new operation control. The existing system configuration can be effectively used as a combination.
In this invention, the operation control unit of the remote controller performs predetermined operation control on the operation mechanism of the remote controller when the control information added to the empty bit of the control signal is detected by the information detection unit. Therefore, the control for the remote controller instructed by the central control device is performed based on the control information added to the empty bit.
It becomes possible to do.

  Invention of Claim 2 of this invention is an air conditioning system of Claim 1, Comprising: The said information addition part (23) of the said centralized control apparatus (2) is the said with respect to the said remote controller (4). As control information, only control information regardless of immediacy is added to the empty bit (E).

  In this invention, the information adding unit of the centralized control device adds only control information regardless of immediacy as control information for the remote controller to the vacant bits of the control signal. Even if the control signal is a control signal that is transmitted at a timing suitable for operation control of the air conditioner and is only transmitted to the remote controller via the air conditioner, the control signal is used. Thus, it is possible to control the operation of the remote controller without causing problems such as operation delay.

Invention of Claim 3 of this invention is an air conditioning system of Claim 1 or 2, Comprising: The said 1st remote controller (4) is the said control information added to the said empty bit (E). When the operation control state at the time set for the operation mechanism is compared with the operation control state indicated by the detected control information, and the two operation control states are different Is to change the operation control state at the time point set for the operation mechanism to a predetermined operation control state.

  In this invention, when the operation control unit of the remote controller is different from the operation control state at the time set for the operation mechanism of the remote controller and the operation control state indicated by the detected control information, Since the operation control state at the time set for the operation mechanism is changed to a predetermined operation control state, the control information added to the control signal can be simplified, and the simplified control information It becomes possible to accurately change the operating state of the operating mechanism of the remote controller.

The invention according to claim 4 of the present invention is the air conditioning system according to claim 3 , wherein the first remote controller (4) is different from the first time in the first time. 2 is further provided, and the first remote controller (4) is configured to detect either the first time or the second time indicated by the detected control information. When the operation control state timed in (44) is different from the operation control state timed in either the first time or the second time set in the timekeeping unit (44) at the time point, The operation control state set in the timer unit (44) is changed to an operation control state in which the other time different from the time measured at the time is counted.

  According to the present invention, the operation control unit of the remote controller has an operation control state in which either the first time or the second time indicated by the control information is measured by the time measuring unit is set in the time measuring unit at that time. When the operation control state is different from the operation control state in which either the first time or the second time is being measured, the operation control state set in the time measurement unit is changed to the other time different from the time being measured at the time. In order to change to the operation control state for measuring the time, the control information added to the control signal may be a simple bit signal indicating one of the two operation states.

  Therefore, according to the present invention, even when only a small number of bits can be secured as the vacant bits in the control signal and only a simple bit signal can be added, the normal time is adopted, for example, daylight saving time. In the case where the operation control is performed with either the setting or whether the time that is a predetermined time earlier than the normal time is adopted, it is possible to accurately switch the time measurement time.

The invention according to claim 5 of the present invention is the air conditioning system according to claim 3 , wherein the first remote controller (4) includes a predetermined first size and the first size. A display unit (45) capable of displaying an image in a predetermined second size different from that of the first remote controller (4) , wherein the first remote controller (4) includes the first or second control information indicated by the detected control information . The operation control state in which an image is displayed on the display unit (45) in any one of the two sizes is an image in either the first or second size set in the display unit (45) at the time. Is different from the operation control state in which the image is displayed, the operation control state set in the display unit (45) is displayed in the other size different from the size displaying the image at the time. The operation control state is changed.

  According to the present invention, even if only a small number of bits can be secured as the vacant bits in the control signal and only a simple bit signal can be added, the first size determined in advance by the simple control information can be obtained. Thus, it is possible to perform control for accurately switching the display on the display unit between a predetermined second size different from the first size.

  According to the present invention, even when new operation control such as daylight saving time is introduced, a device that supports the new operation control can be used together with a device that does not support the new operation control. The existing system configuration can be used effectively.

It is a figure which shows the air conditioning system which concerns on one Embodiment of this invention. It is a block diagram which shows the structure of a centralized control apparatus. It is a figure which shows the example of a control signal. It is a block diagram which shows the structure of an air conditioning apparatus. It is a block diagram which shows the structure of a remote controller. It is a flowchart which shows 1st Embodiment of the process at the time of changing the setting about the operation control of a remote controller by an air conditioning system. It is a flowchart which shows 2nd Embodiment of the process at the time of changing the setting about the operation control of a remote controller by an air conditioning system. It is a flowchart which shows 3rd Embodiment of the process at the time of changing the setting about the operation control of a remote controller by an air conditioning system.

  Hereinafter, an air conditioning system according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing an air conditioning system according to an embodiment of the present invention.

  The air conditioning system 1 includes a central control device 2, an air conditioning device 3 connected to the central control device 2, and a remote controller 4 connected to each air conditioning device 3. The number of air conditioners 3 provided in the air conditioning system 1 and the number of remote controllers 4 are not particularly limited.

  The central control device 2 controls the operation of each air conditioner 3 connected to the central control device 2. For example, the centralized control device 2 starts and stops the operation of each air conditioner 3 at a predetermined time, or detects a detected temperature value or the like from an unillustrated thermosensor provided in each air conditioner 3. When received as control data and the detected temperature value exceeds a predetermined abnormal temperature, control such as stopping the operation of the air conditioner 3 that has transmitted the control data is performed.

  The air conditioner 3 includes an outdoor unit (not shown) and an indoor unit in which a refrigerant circuit and a control system are connected to the outdoor unit. The air conditioning apparatus 3 is driven by an air conditioning operation using electric power supplied from commercial power or the like. In the air conditioner 3, based on control signals from the central control device 2 and the remote controller 4, a control unit described later controls each operation mechanism.

  The remote controller 4 transmits various command signals relating to operations such as air conditioning temperature setting, cooling or heating switching signals to the air conditioning apparatus 3. The remote controller 4 includes an operation unit operated by a user, and transmits various command signals to the connected air conditioner 3 based on an instruction from the user received by the operation unit.

  Next, the configuration of the central control device 2 will be described. FIG. 2 is a block diagram showing the configuration of the central control apparatus 2. The central control device 2 includes a central control unit 21, a signal transmission / reception unit 22, and an information addition unit 23.

  The central control unit 21 controls the operation of each connected air conditioner 3 according to a preset program. This central control unit 21 starts and stops each air conditioner 3 according to a time preset by the user, using a time information obtained from a not-illustrated time measuring unit that measures time, and a signal transmitting / receiving unit. Based on the detected temperature value received from the air conditioner 3 by 22, control is performed such as stopping the operation of the air conditioner 3 when the operation is abnormal.

  The signal transmission / reception unit 22 communicates with each air conditioner 3 through control data necessary for controlling each air conditioner 3 (various control signals such as a start command signal and an operation stop signal for the air conditioner 3, and the detected temperature Value etc.).

  The information adding unit 23 detects an empty bit that is not treated as a bit to which control information (information indicating a start command or operation stop) for the air conditioner 3 is added in the control signal, Control information for the controller 4 (for example, a time switching command to a time corresponding to daylight saving time or an image display size switching command by the display unit 45 of the remote controller 4) is added. For example, as shown in FIG. 3, the control signal C includes a number of bits and includes the activation command signal S and the like. For example, a specific empty bit E in the control signal C In order to switch the time measurement corresponding to the daylight saving time, control information indicating whether to adopt the standard time or the daylight saving time that is a predetermined time earlier than the standard time is added. Alternatively, the information adding unit 23 displays a predetermined small size or the small size so that the empty bit E can be switched by the display unit 45 (FIG. 5) of the remote controller 4. Control information indicating which of larger predetermined large size displays to be used is added.

  Next, the structure of the air conditioning apparatus 3 will be described. FIG. 4 is a block diagram showing the configuration of the air conditioner 3. The air conditioner 3 includes a control unit 31, a signal reception unit 32, and a control signal transmission unit 33.

  The control unit 31 governs overall operation control of the air conditioner 3. The control unit 31 detects control information added to portions other than the empty bit E in the control signal C received by the signal receiving unit 32 from the centralized control device 2, and the air conditioning device 3 according to the detected control information. Control the operating mechanism.

  The signal receiving unit 32 receives the control signal C from the signal transmitting / receiving unit 22 of the centralized control device 2.

  The control signal transmission unit 33 transmits the control signal C received by the signal reception unit 32 to the remote controller 4 connected to the air conditioner 3. That is, the control signal C received by the signal receiving unit 32 from the centralized control device 2 is transmitted to the remote controller 4 by the control signal transmitting unit 33 after being used for operation control of the air conditioner 3 by the control unit 31. The

  Next, the configuration of the remote controller 4 will be described. FIG. 5 is a block diagram showing the configuration of the remote controller 4. The remote controller 4 includes a communication unit 41, an information detection unit 42, an operation control unit 43, a timer unit 44, and a display unit 45.

  The communication unit 41 receives the control signal C and transmits and receives various signals (various command signals related to operations such as air conditioning temperature setting, cooling and heating switching signals) to and from the air conditioning apparatus 3.

  The information detection unit 42 analyzes the control signal C received from the air conditioner 3 by the communication unit 41 and detects control information added to the empty bit E.

  The operation control unit 43 controls overall operation of the remote controller 4. The operation control unit 43 performs predetermined operation control on the operation mechanism of the remote controller 4 when the control information added to the empty bit E is detected by the information detection unit 42. For example, when the control information added to the empty bit E is detected by the information detection unit 42, the operation control unit 43 is set for the operation mechanism of the remote controller 4 (for example, the time measuring unit 44 and the display unit 45). The operation control state at that time point is compared with the operation control state indicated by the detected control information, and when these two operation control states are different from each other, The operation control state is changed to a predetermined operation control state.

  The time measuring unit 44 measures a standard time (for example, standard time, first time) and a daylight saving time that is different from the standard time (time that is a predetermined time (for example, one hour) ahead of the standard time; second time). To do.

  In the operation control unit 43, the operation control state in which the time measuring unit 44 indicated by the control information detected by the information detecting unit 42 measures either the standard time or the daylight saving time is set in the time measuring unit 44 at that time. When the time or daylight saving time is different from the operation control state that measures time, the operation control state set in the time measuring unit 44 is counted as the other time different from the time measured at the time. Change to the operation control state.

  The display unit 45 includes, for example, an LCD (Liquid Crystal Display) or the like, and displays information such as operation guidance of the air conditioner 3 for the user, set temperature information, and a cooling or heating operation mode under the control of the operation control unit 43. To do. The display unit 45 is an example of an operation mechanism in the claims. The display unit 45 includes a backlight made of, for example, an LED (Light Emitting Diode), for example, and irradiates the character display portion of the LCD toward the user from behind. The display unit 45 has a predetermined small size (first size) and a predetermined large size (second size) larger than the small size under operation control by the operation control unit 43. To display the image.

  The operation control unit 43 sets the operation control state in which the image is displayed in either the small size or the large size on the display unit 45 indicated by the control information detected by the information detection unit 42 at the time point. When the operation control state in which an image is displayed in either the small size or the large size is different from the operation control state in which the image is displayed at the time point Change to an operation control state in which an image is displayed in a different size.

  The operation unit 46 includes a plurality of buttons and the like, and receives an air conditioner temperature setting to be performed by the air conditioner 3, a cooling or heating operation switching command, and the like based on an operation by the user. Each received command or the like is transmitted to the control unit 31 of the air conditioner 3 by the communication unit 41.

  Next, a description will be given of a first embodiment of a process when changing the setting for operation control of the remote controller 4 by the air conditioning system 1. FIG. 6 is a flowchart showing a first embodiment of a process when changing the setting for the operation control of the remote controller 4 by the air conditioning system 1.

  Operation setting (for example, time measurement of standard time or daylight saving time by the time measuring unit 44, image size displayed by the display unit 45) for the operation mechanism (for example, time measuring unit 44, display unit 45) set in the remote controller 4 When the information adding unit 23 of the centralized control device 2 changes the control information (for example, the remote controller 4) to the empty bit that is not treated as the bit to which the control information for the air conditioner 3 is added in the control signal. , A standard time or daylight saving time measurement command, a small size or large size display command of the display unit 45) is added (S21). Then, the signal transmission / reception part 22 transmits the control signal with which the said control information was added to the empty bit to each air conditioning apparatus 3 (S22). In the present embodiment, the signal transmission / reception unit 22 does not transmit the control signal to the specific air conditioner 3, but does not specify the air conditioner 3, and sends control signals to all the air conditioners 3. A case of transmission will be described. The signal transmission / reception unit 22 may transmit the control signal to the specific air conditioner 3.

  In the air conditioner 3, when the signal receiving unit 32 receives the control signal transmitted from the signal transmitting / receiving unit 22 of the centralized control device 2 (S31), the control unit 31 includes the empty signal in the received control signal. Control information added to portions other than the bit E is detected (S34). The control unit 31 controls the operation mechanism of the air conditioner 3 according to the content of the operation control indicated by the detected control information (S35). Thereafter, the control signal transmission unit 33 transmits the control signal to the remote controller 4 connected to the air conditioner 3 (S36). That is, the control signal received from the central control device 2 by the signal receiving unit 32 is used for controlling the operation of the air conditioning device 3 by the control unit 31 and then transmitted from the control signal transmitting unit 33 to the remote controller 4.

  In the remote controller 4, when the communication unit 41 receives a control signal transmitted from the control signal transmission unit 33 of the air conditioner 3 (S41), the information detection unit 42 analyzes the control signal (S42). . That is, the information detection unit 42 controls the remote controller 4 to control the empty bit E of the control signal C (the empty bit E to which the control signal for the remote controller 4 is added is specified). It is determined whether or not the control information is added (hereinafter the same in each embodiment). Here, when the control information for controlling the remote controller 4 added to the empty bit E is detected from the control signal C by the information detection unit 42 (YES in S43), the operation control unit 43 The operation mechanism of the remote controller 4 is controlled according to the control content indicated by the information (S44). On the other hand, when the control information for controlling the remote controller 4 added to the vacant bit is not detected from the control signal C by the information detection unit 42 (NO in S43), the operation control unit 43 performs control instructing control. Since there is no information, the control signal is ignored (S45). That is, the operation control unit 43 does not perform operation control according to the control signal.

  Next, a description will be given of a second embodiment of processing when changing the setting for operation control of the remote controller 4 by the air conditioning system 1. FIG. 7 is a flowchart showing a second embodiment of a process when changing the setting for the operation control of the remote controller 4 by the air conditioning system 1. Note that the description of the same processing as in the first embodiment is omitted.

  In the remote controller 4, when the communication unit 41 receives a control signal transmitted from the control signal transmission unit 33 of the air conditioner 3 (S141), the information detection unit 42 analyzes the control signal (S142). . Here, when the information detection unit 42 detects control information indicating whether to set the standard time clock or the daylight saving time in the empty bit E in the control signal C (YES in S143), the operation control is performed. The unit 43 determines whether the operation state of the standard timekeeping or daylight saving time indicated by the analyzed control information is different from the operation state of the standard timekeeping or daylight saving time set in the timekeeping unit 44 at the time. Is determined (S144).

  Here, when the operation control unit 43 determines that the operation state indicated by the analyzed control information is different from the operation state set in the time measuring unit 44 at that time (YES in S144). Then, the operation state set in the timer unit 44 is changed to an operation state in which the other time different from the time measured at the time is measured (S145). That is, when the standard timekeeping that has been set in the timekeeping unit 44 is switched to the daylight saving time by the control information, the operation control unit 43 causes the timekeeping unit 44 to advance the timekeeping time by one hour. In addition, when the daylight saving time that has been set in the time counting unit 44 is switched to the standard time counting by the control information, the operation control unit 43 causes the time counting unit 44 to delay the time counting by one hour.

  When the operation control unit 43 determines that the operation state indicated by the analyzed control information is the same as the operation state set in the time measurement unit 44 at that time (NO in S144), The operation state set in the time counting unit 44 is maintained at the operation state set at the time (S147).

  In S143, when the information detection unit 42 does not detect the control information indicating the time clock switching in the empty bit E in the control signal C (NO in S143), the operation control unit 43 The control signal is ignored (S146). That is, the operation control unit 43 does not perform operation control according to the control signal.

  Next, a description will be given of a third embodiment of processing when the setting for operation control of the remote controller 4 is changed by the air conditioning system 1. FIG. 8 is a flowchart showing a third embodiment of a process when changing the setting for the operation control of the remote controller 4 by the air conditioning system 1. Note that the description of the same processing as in the first or second embodiment will be omitted.

  In the remote controller 4, when the communication unit 41 receives a control signal transmitted from the control signal transmission unit 33 of the air conditioner 3 (S241), the information detection unit 42 analyzes the control signal (S242). . Here, when the information detection unit 42 detects control information indicating whether to display an image in the small size or the large size on the display unit 45 in the empty bit E in the control signal C (in S243). YES), the operation control unit 43 indicates that the display state of the small size or large size displayed on the display unit 45 indicated by the analyzed control information is the display state of the small size or large size set on the display unit 45 at that time. It is judged whether or not (S244).

  Here, the operation state of the small size display or the large size display indicated by the control information analyzed by the operation control unit 43 is the small size display or the large size display set in the display unit 45 at the time. When it is determined that the operation state is different from the operation state (YES in S244), the operation state set in the display unit 45 is an operation state in which the other size different from the size displayed at the time is displayed. (S245).

  Further, the operation control unit 43 indicates that the operation state of either the small size display or the large size display indicated by the analyzed control information is the small size display or the large size display set in the display unit 45 at the time. When it is determined that it is the same as the operation state (NO in S244), the operation state set in the display unit 45 is maintained in the size display state at the time (S247).

  In S243, when the information detection unit 42 does not detect control information that causes the display unit 45 to display an image in either the small size or the large size in the empty bit E in the control signal C ( The operation control unit 43 ignores the control signal (S246). That is, the operation control unit 43 does not perform operation control according to the control signal.

  The present invention is not limited to the configuration of the above embodiment, and various modifications can be made. For example, in the above embodiment, the control information added to the empty bit E of the control signal C is control information indicating whether to set the standard time clock or the daylight saving time, and the display unit 45 has a small size or a large size. Although it is described as control information for displaying an image by any of them, the control information added to the empty bit E of the control signal C is not limited to these examples. Note that the information adding unit 23 of the centralized control device 2 does not matter whether the control information is immediacy (the operation state does not need to be switched simultaneously with the instruction, and the instruction issuance and operation switching are performed in real time. Only control information may be added to the empty bit E. In this case, it is originally a control signal for controlling the operation of the air conditioner 3, transmitted at a timing suitable for the operation control of the air conditioner 3, and transmitted to the remote controller 4 via the air conditioner 3. Even if it is only a control signal, it is possible to control the operation of the remote controller 4 without causing problems such as an operation delay using the control signal.

DESCRIPTION OF SYMBOLS 1 Air conditioning system 2 Central control apparatus 21 Central control part 22 Signal transmission / reception part 23 Information addition part 3 Air conditioning apparatus 31 Control part 32 Signal reception part 33 Control signal transmission part 4 Remote controller 41 Communication part 42 Information detection part 43 Operation control part 44 Timekeeping unit 45 Display unit 46 Operation unit

Claims (5)

An air conditioning system (1) comprising a centralized control device (2), an air conditioning device (3), and a remote controller (4),
The central control device (2) includes a signal transmission unit (22) that transmits a control signal (C) including predetermined control information (S) for the air conditioner (3), and the control signal (C) An information adding unit that adds control information for the remote controller (4) to an empty bit (E) that is not treated as a bit to which the control information (S) for the air conditioner (3) is added,
The air conditioner (3) includes a signal receiver (32) that receives the control signal (C) from the signal transmitter (22) of the centralized controller (2), and the signal receiver (32). The control unit (31) for controlling the operation mechanism of the air conditioner (3) according to control information (S) added to a part other than the empty bit (E) in the received control signal (C), and the reception A control signal transmitter (33) for transmitting the control signal (C) to the remote controller (4) connected to the air conditioner (3),
The remote controller (4) includes a communication unit (41) that performs communication including reception of the control signal (C) with the air conditioner (3) ,
The remote controller (4) is a first remote controller of a type corresponding to operation control based on control information for the remote controller (4) added to the empty bit (E) of the control signal (C). 4), the first remote controller (4) sets the empty bit (E) based on the control signal (C) received from the air conditioner (3) by the communication unit (41). Detecting the added control information, performing a predetermined operation control on the operation mechanism of the remote controller (4),
The remote controller (4) is a second remote controller of a type that does not support operation control based on control information for the remote controller (4) added to the empty bit (E) of the control signal (C). 4), the second remote controller (4) does not recognize the control information added to the empty bit (E) of the control signal (C ).   The information adding unit (23) of the centralized control device (2) adds only control information with or without immediacy to the empty bit (E) as the control information for the remote controller (4). Item 1. The air conditioning system (1) according to item 1. When the control information added to the empty bit (E) is detected, the first remote controller (4) detects the operation control state at the time point set for the operation mechanism and the detected information. When the two operation control states are different from each other, the operation control state at the time set for the operation mechanism is changed to a predetermined operation control state. The air conditioning system (1) according to claim 1 or 2 to be changed. The first remote controller (4) further includes a time measuring unit (44) capable of measuring a first time and a second time different from the first time,
The first remote controller (4) has an operation control state that causes the time counting unit (44) to time either the first time or the second time indicated by the detected control information. When it is different from the operation control state for measuring either the first time or the second time set in (44), the operation control state set in the time measuring unit (44) is The air conditioning system (1) according to claim 3 , wherein the air conditioning system (1) is changed to an operation control state in which the other time different from the time measured by the time is counted. The first remote controller (4) further includes a display unit (45) capable of displaying an image with a predetermined first size and a predetermined second size different from the first size. Prepared,
The first remote controller (4) has an operation control state in which an image is displayed on the display unit (45) in either the first or second size indicated by the detected control information at the time point. When it is different from the operation control state in which an image is displayed in either the first or second size set in the display unit (45), the operation control state set in the display unit (45) The air conditioning system (1) according to claim 3 , wherein the air conditioning system is changed to an operation control state in which an image is displayed in another size different from the size in which the image is displayed at the time.

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