BACKGROUND OF THE INVENTION
Field of the Invention
[0001] The present invention relates to a control device, an air conditioning system, a
control method, and a program.
Description of Related Art
[0002] An air conditioning system of the related art, which controls a temperature, a humidity,
an airflow direction, and the like of a room according to characteristics of a user
in order to improve comfort, is known (refer to, for example, Japanese Unexamined
Patent Application, First Publication No.
2003-50040).
[0003] In addition, for the purpose of further improving comfort, an air conditioning system
that detects a position of the user in a room and utilizes the position of the user
for output control of an indoor unit and airflow direction control is conceivable.
[0004] In the air conditioning system of the related art, the position of the user is detected
by using a sensor (human sensor, temperature sensor, and the like) built into the
indoor unit. However, according to the related art, in a case where an obstacle is
present between the indoor unit and the user, or in a case where it is recognized
that a plurality of users overlap, the position of the user may not be able to be
correctly recognized, and it may be difficult to control the air conditioning system
such that there is an air conditioning environment intended by the user.
[0005] The present invention provides a control device, an air conditioning system, a control
method, and a program capable of allowing adjustment of an air conditioning environment
in a specific place to that intended by a user even in a case where an obstacle is
present.
SUMMARY OF THE INVENTION
[0006] According to a first aspect of the present invention, a control device that controls
an air conditioning indoor unit includes a radio wave detection unit configured to
detect radio waves radiated from a transmitter through at least two reception units
provided in the air conditioning indoor unit, a direction estimation unit configured
to estimate a transmitter direction indicating a direction in which the transmitter
is disposed on the basis of the radio waves received by each of the reception units,
an environment information acquisition unit configured to acquire environment information
indicating an air conditioning environment in the transmitter direction, which is
included in the radio waves, a required environment acquisition unit configured to
acquire a required environment setting requested by a user, and a driving control
unit configured to control the air conditioning indoor unit so that the air conditioning
environment in the transmitter direction satisfies the required environment setting.
[0007] According to the above configuration, for example, even in a case where an obstacle
is present between the air conditioning indoor unit and the transmitter, it is possible
to estimate the transmitter direction in which the transmitter is disposed. Thus,
since the control device is capable of adjusting the air conditioning environment
in the direction in which the transmitter is disposed according to an intention of
the user by disposing the transmitter in a place where the user preferentially wishes
to adjust the air conditioning environment, it is possible to greatly improve comfort
of the user.
[0008] According to a second aspect of the present invention, in the control device of the
first aspect, the reception units are disposed at different positions in a horizontal
direction, and the direction estimation unit estimates the transmitter direction on
the basis of intensities of the radio waves received by each of the reception units
from the transmitter.
[0009] According to the above configuration, the direction estimation unit is capable of
accurately estimating the direction in which the transmitter is disposed.
[0010] According to a third aspect of the present invention, in the control device of the
first or second aspect, the air conditioning indoor unit is provided with three or
more reception units, and the direction estimation unit further estimates a transmitter
position indicating a position of the transmitter on the basis of intensities of the
radio waves received by each of the three or more reception units from the transmitter.
[0011] According to the above configuration, the control device is capable of estimating
the position where the transmitter is disposed and adjust the air conditioning environment
in the vicinity of the transmitter position according to the intention of the user.
Thus, the control device is capable of further improving the comfort of the user.
[0012] According to a fourth aspect of the present invention, in the control device of the
first to third aspects, the direction estimation unit estimates the transmitter direction
indicating a direction in which each of a plurality of transmitters is disposed, the
required environment acquisition unit acquires different required environment settings
for each of the transmitters, and the driving control unit controls the air conditioning
indoor unit so that the air conditioning environment in the transmitter direction
of each of the plurality of transmitters satisfies the required environment settings
for each of the transmitters.
[0013] According to the above configuration, by disposing the transmitter in each of a plurality
of places where the user wishes to adjust the air conditioning environment, the control
device is capable of appropriately adjusting a range where the airflow blows, for
example, the airflow blows in a certain direction and the airflow does not blow in
another direction, etc., according to a preference of each of a plurality of users.
Accordingly, the control device is capable of improving the comfort of each of the
plurality of users.
[0014] According to a fifth aspect of the present invention, the control device of any one
of the first to fourth aspects further includes an error detection unit configured
to detect the occurrence of an error in the transmitter in a case where the radio
wave from the transmitter is not received even after a predetermined waiting time
has elapsed.
[0015] According to the above configuration, the control device is capable of detecting
that the radio wave is not capable of being radiated due to, for example, a failure
of the transmitter or battery exhaustion.
[0016] According to a sixth aspect of the present invention, an air conditioning system
includes a transmitter configured to radiate a radio wave, an air conditioning indoor
unit having at least two reception units that receive the radio waves radiated from
the transmitter, and a control device of any one of the first to fifth aspects.
[0017] According to a seventh aspect of the present invention, a control method for controlling
an air conditioning indoor unit includes a radio wave detection step of detecting
radio waves radiated from a transmitter through at least two reception units provided
in the air conditioning indoor unit, a direction estimation step of estimating a transmitter
direction indicating a direction in which the transmitter is disposed on the basis
of the radio waves received by each of the reception units, an environment information
acquisition step of acquiring environment information indicating an air conditioning
environment in the transmitter direction, which is included in the radio waves, a
required environment acquisition step of acquiring a required environment setting
requested by a user, and an operation control step of controlling the air conditioning
indoor unit so that the air conditioning environment in the transmitter direction
satisfies the required environment setting.
[0018] According to an eighth aspect of the present invention, a program causes a computer
of a control device that controls an air conditioning indoor unit to function and
execute a radio wave detection step of detecting radio waves radiated from a transmitter
through at least two reception units provided in the air conditioning indoor unit,
a direction estimation step of estimating a transmitter direction indicating a direction
in which the transmitter is disposed on the basis of the radio waves received by each
of the reception units, an environment information acquisition step of acquiring environment
information indicating an air conditioning environment in the transmitter direction,
which is included in the radio waves, a required environment acquisition step of acquiring
a required environment setting requested by a user, and an operation control step
of controlling the air conditioning indoor unit so that the air conditioning environment
in the transmitter direction satisfies the required environment setting.
[0019] According to the control device, the air conditioning system, the control method,
and the program as described above, it is possible to adjust a specific place to the
air conditioning environment intended by the user even in a case where an obstacle
is present.
BRIEF DESCRIPTION OF THE DRAWINGS
[0020]
FIG. 1 is a schematic diagram showing an overall configuration of an air conditioning
system according to an embodiment of the present invention.
FIG. 2 is a diagram showing a functional configuration of the air conditioning system
according to the embodiment of the present invention.
FIG. 3 is a diagram showing a functional configuration of a transmitter according
to the embodiment of the present invention.
FIG. 4 is a flowchart showing an example of a process of a control device according
to the embodiment of the present invention.
FIG. 5 is a diagram showing an example of transmitter information according to the
embodiment of the present invention.
FIG. 6 is a flowchart showing an example of a process of the transmitter according
to the embodiment of the present invention.
FIG. 7 is a diagram showing an example of a hardware configuration of the control
device and the transmitter according to the embodiment of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
[0021] Hereinafter, an air conditioning system 1 according to a first embodiment of the
present invention will be described with reference to FIGS. 1 to 7.
[0022] In the present embodiment, an aspect in which the air conditioning system 1 is a
home room air conditioner will be described as an example, but the present invention
is not limited thereto. In alternative embodiment, the air conditioning system 1 may
be a system provided in a space such as a large store, a factory, or the like where
a large number of users are present.
(Overall configuration of air conditioning system)
[0023] FIG. 1 is a schematic diagram showing an overall configuration of an air conditioning
system according to an embodiment of the present invention.
[0024] As shown in FIG. 1, the air conditioning system 1 includes a control device 2, an
air conditioning indoor unit 3, a transmitter 4, and a remote controller 5.
[0025] The control device 2 receives a request for an air conditioning environment (temperature,
humidity, air volume, airflow direction, and the like) (hereinafter also referred
to as "required environment setting") from the user and controls the air conditioning
indoor unit 3 such that the request is satisfied.
[0026] The air conditioning indoor unit 3 is installed on a wall surface, a ceiling, or
the like of a space (room) in which the user is present, and performs various operations
for adjusting the air conditioning environment in the space according to a control
command by the control device 2. Although FIG. 1 shows an example in which the air
conditioning system 1 includes one air conditioning indoor unit 3, the present invention
is not limited thereto. In alternative embodiments, the air conditioning system 1
may include a plurality of air conditioning indoor units 3, and one control unit 2
may control the plurality of air conditioning indoor units 3. As shown in FIG. 1,
the air conditioning indoor unit 3 includes a fan 31 capable of adjusting the air
volume, a louver 32 capable of adjusting the airflow direction, at least two reception
units 33 capable of receiving radio waves from the transmitter 4, and a notification
unit 34 that notifies the user of the occurrence of an error.
[0027] The reception units 33 are each disposed at different positions in a horizontal direction.
For example, as shown in FIG. 1, two reception units 33 are each disposed at opposite
ends in the horizontal direction of the air conditioning indoor unit 3. Although FIG.
1 shows an example in which the air conditioning indoor unit 3 includes two of the
reception units 33, the present invention is not limited thereto. In alternative embodiments,
the air conditioning indoor unit 3 may include three or more reception units 33.
[0028] The notification unit 34 is a display device such as a liquid crystal display or
an LED. When the notification unit 34 detects an error such that the reception unit
33 is not capable of receiving the radio wave from the transmitter 4, the notification
unit 34 notifies the user of the detection of the error. In addition, the notification
unit 34 may be an output device that notifies detection of the error by voice. In
addition, in the present embodiment, an aspect in which the notification unit 34 is
provided in the air conditioning indoor unit 3 is described as an example, but the
present invention is not limited thereto. In alternative embodiments, the notification
unit 34 may be provided in the remote controller 5.
[0029] The transmitter 4 is a terminal device disposed at a place where the user prefers
to adjust the air conditioning environment. For example, as shown in FIG. 1, in a
case where a plurality of users (adult and baby) are present in one space, it is conceivable
that the user may request an air conditioning environment in which the baby is able
to remain in comfort. In this case, the user is able to preferentially adjust the
air conditioning environment in the vicinity of a baby bed by disposing the transmitter
4 in the baby bed where the baby is present.
[0030] In addition, the transmitter 4 radiates radio waves including the air conditioning
environment (temperature, humidity, and the like) at the position where the transmitter
4 is disposed at every predetermined transmission time.
[0031] The transmitter 4 radiates a radio wave having a frequency band of at least 300 GHz
or less such that the radio wave transmits through an obstacle disposed between the
receiver 33 provided in the air conditioning indoor unit 3 and the transmitter 4.
More preferably, the transmitter 4 radiates a radio wave of a frequency band of 300
MHz to 300 GHz (so-called microwave). In the present embodiment, an aspect in which
the transmitter 4 radiates a radio wave of a frequency band of 2.4 GHz using Bluetooth
(registered trademark) technology, particularly Bluetooth Low Energy will be described
as an example.
[0032] Although FIG. 1 shows an example in which only one transmitter 4 is disposed in the
space, the present invention is not limited thereto. In another embodiment, a plurality
of transmitters 4 may be disposed.
[0033] The remote controller 5 receives an input operation of the "required environment
setting" from the user and transmits the input operation to the control device 2.
The "required environment setting" is a setting value of the air conditioning environment
requested by the user, and includes, for example, a temperature, humidity, air volume,
airflow direction, and the like. In addition, in a case where a plurality of transmitters
4 are disposed, the remote controller 5 may receive different "required environment
settings" for each of the transmitters 4.
[0034] For example, the remote controller 5 transmits the "required environment setting"
to the control device 2 through a light reception unit (not shown) provided in the
air conditioning indoor unit 3 by infrared communication similarly to the air conditioning
system of the related art. In addition, in alternative embodiments, the remote controller
5 may be wired to the air conditioning indoor unit 3.
(Functional configuration of air conditioning system)
[0035] FIG. 2 is a diagram showing a functional configuration of the air conditioning system
according to an embodiment of the present invention.
[0036] As shown in FIG. 2, the control device 2 of the air conditioning system 1 has a CPU
21 and a storage medium 22.
[0037] The CPU 21 is a processor that is responsible for the overall operation of the control
device 2 and operates according to a predetermined program, to function as a radio
wave detection unit 211, a direction estimation unit 212, an environment information
acquisition unit 213, a required environment acquisition unit 214, a driving control
unit 215, and an error detection unit 216.
[0038] The radio wave detection unit 211 detects the radio wave radiated from the transmitter
4 through the reception unit 33 provided in the air conditioning indoor unit 3.
[0039] Note that the radio wave radiated from the transmitter 4 includes a "transmitter
ID" capable of specifying the transmitter 4 and "environment information" indicating
the air conditioning environment (temperature, humidity, and the like) at the position
of the transmitter 4.
[0040] The direction estimation unit 212 estimates a "transmitter direction" indicating
a direction in which the transmitter 4 is disposed (a two-dimensional position in
the horizontal direction) or "transmitter position" indicating a three-dimensional
position, on the basis of the radio waves received by each of the reception units
33 provided in the air conditioning indoor unit 3.
[0041] In a case where a plurality of transmitters 4 are disposed in the space, the direction
estimation unit 212 specifies the transmitter 4 associated with the radio wave by
the "transmitter ID" included in the radio wave, and estimates the "transmitter direction"
or the "transmitter position" of each of the transmitters 4.
[0042] The environmental information acquisition unit 213 acquires "environment information"
included in the radio wave radiated from the transmitter 4. Therefore, the environment
information acquisition unit 213 acquires the environmental information indicating
the air conditioning environment (temperature, humidity, and the like) in the "transmitter
direction (two-dimensional position)" or the "transmitter position (three-dimensional
position)" of the transmitter 4.
[0043] The required environment acquisition unit 214 acquires the "required environment
setting" requested by the user.
[0044] The driving control unit 215 controls the air conditioning indoor unit 3 so that
the air conditioning environment in the "transmitter direction" or the "transmitter
position" of the transmitter 4 satisfies the "required environment setting".
[0045] In addition, in a case where a plurality of transmitters 4 are disposed, the driving
control unit 215 controls the air conditioning indoor unit 3 so that the air conditioning
environment in the "transmitter direction" or the "transmitter position" of each of
the plurality of transmitters 4 satisfies the "required environment setting" for each
of the transmitters 4.
[0046] The error detection unit 216 detects the occurrence of an error in the transmitter
4 in a case where a period during which the radio wave is not received from the transmitter
4 continues for a predetermined waiting time (for example, three minutes) or more.
[0047] In addition, the error detection unit 216 notifies the user of the occurrence of
the error through the notification unit 34 of the air conditioning indoor unit 3.
Therefore, for example, it is possible to notify the user that the radio wave is not
able to be radiated by detecting that the radio wave is not able to be radiated due
to failure of the transmitter 4, battery exhaustion, or the like.
[0048] The "required environment setting" acquired by the required environment acquisition
unit 214 is stored in the storage medium 22. In addition, the "transmitter direction"
or the "transmitter position" of the transmitter 4 estimated by the direction estimation
unit 212 and the "environment information" acquired by the environment information
acquisition unit 213 may be stored in the storage medium 22.
[0049] FIG. 3 is a diagram showing a functional configuration of the transmitter according
to an embodiment of the present invention.
[0050] As shown in FIG. 3, the transmitter 4 includes a sensor 41, a wireless communication
unit 42, and a CPU 43.
[0051] The sensor 41 is a sensor group for measuring the air conditioning environment (temperature,
humidity, and the like) in the vicinity of the transmitter 4 and includes, for example,
a temperature sensor, a humidity sensor, and the like.
[0052] The wireless communication unit 42 is a dedicated IC chip mounted for performing
wireless communication using a radio wave of a predetermined frequency band. In the
present embodiment, as described above, the wireless communication unit 42 is an IC
chip for transmitting and receiving the radio wave using Bluetooth (registered trademark)
technology.
[0053] The CPU 43 is a processor that is responsible for the overall operation of the transmitter
4, and is operated according to a predetermined program to function as a sensor information
acquisition unit 431 and a radio wave transmission-processing unit 432.
[0054] The sensor information acquisition unit 431 acquires the "environment information"
indicating the air conditioning environment (temperature, humidity) in the vicinity
of the transmitter 4 from the sensor 41 at every predetermined measurement time (for
example, one minute).
[0055] The radio wave transmission-processing unit 432 radiates the radio wave in which
the "transmitter ID" that is set in the transmitter 4 in advance and the "environment
information" acquired by the sensor information acquisition unit 431 are superimposed
at every predetermined transmission time (for example, one minute).
(Process flow of air conditioning system)
[0056] FIG. 4 is a flowchart showing an example of a process of the control device according
to an embodiment of the present invention.
[0057] As shown in FIG. 4, the radio wave detection unit 211 of the control device 2 determines
whether or not the reception unit 33 provided in the air conditioning indoor unit
3 has received the radio wave radiated from the transmitter 4 (step S10)
[0058] In a case where the radio wave detection unit 211 detects that the radio wave from
the transmitter 4 is received (step S10: YES), the direction estimation unit 212 estimates
the "transmitter direction" or the "transmitter position" of the transmitter 4 that
is a transmission source of the radio wave (step S11).
[0059] As shown in FIG. 1, in a case where the two reception units 33 are provided in the
air conditioning indoor unit 3, the direction estimation unit 212 calculates distances
between each of the reception units 33 and the transmitter 4, on the basis of intensities
of the radio waves received by each of the two reception units 33. In addition, the
direction estimation unit 212 estimates the two-dimensional position (horizontal direction
position) that satisfies the two distances in space, that is, the "transmitter direction"
indicating the direction in which the transmitter 4 is disposed.
[0060] In addition, in a case where three or more reception units 33 are provided in the
air conditioning indoor unit, the direction estimation unit 212 is able to further
estimate the position in a height direction of the transmitter 4 on the basis of the
intensities of the radio waves received by each of the reception units 33. That is,
the direction estimation unit 212 further estimates the "transmitter position" that
is the three-dimensional position of the transmitter 4 in the space, on the basis
of the intensities of the radio waves received by each of the three or more reception
units 33.
[0061] In the present embodiment, the radio wave detection unit 211 sequentially detects
the radio wave radiated from the transmitter 4 at every predetermined transmission
time, but the present invention is not limited thereto. In alternative embodiments,
when the radio wave detection unit 211 detects that the position of the transmitter
4 is changed, the radio wave detection unit 211 may detect the radio wave. A time
when detecting that the position of the transmitter 4 is changed means, for example,
a time when the radio wave intensity of the received radio wave is changed.
[0062] Next, the environment information acquisition unit 213 acquires the "transmitter
ID" and the "environment information" included in the radio wave detected by the radio
wave detection unit 211 (step S12).
[0063] At this time, the environment information acquisition unit 213 stores the acquired
"transmitter ID" and "environment information" in the storage medium 22 as "transmitter
information D10 (FIG. 5)".
[0064] FIG. 5 is a diagram showing an example of the transmitter information according to
an embodiment of the present invention.
[0065] As shown in FIG. 5, the transmitter information D10 is information in which the "transmitter
ID" capable of specifying the transmitter 4 that is the transmission source of the
radio wave, the "environment information" indicating the air conditioning environment
(temperature, humidity, and the like) in the vicinity of the transmitter 4, and the
"transmitter direction" or the "transmitter position" of the transmitter 4 estimated
by the direction estimation unit 212 are associated with each other.
[0066] In a case where a plurality of transmitters 4 are disposed, the transmitter information
D10 is stored in the storage medium 22 for each of the transmitters.
[0067] Next, the required environment acquisition unit 214 acquires the "required environment
setting" indicating the air conditioning environment requested by the user.
[0068] At this time, the required environment acquisition unit 214 stores the "required
environment setting" that is input by the user in advance through the remote controller
5 in the storage medium 22, and reads and acquires the latest "required environment
setting" from the storage medium 22.
[0069] Next, the driving control unit 215 performs driving control of the air conditioning
indoor unit 3 so that the air conditioning environment ("environment information")
in the "transmitter direction" or the "transmitter position" of the transmitter 4
satisfies the "required environment setting" (step S14).
[0070] For example, it is assumed that the user has disposed the transmitter 4 in a baby
bed where a baby is present as in the example of FIG. 1. At this time, the user inputs
the "required environment setting" that specifies temperature, humidity, and the like,
which allow the baby to comfortably stay through the remote controller 5. Then, the
driving control unit 215 transmits a control command for changing a control amount
of the fan 31 to the air conditioning indoor unit 3 so that the temperature, the humidity,
and the like in the vicinity of the baby bed where the transmitter 4 is disposed is
close to the "required environment setting" as much as possible. In addition, there
is a possibility that the user may think that the user does not want an airflow to
directly blow towards the baby. In this case, the user may dispose different transmitters
4 to each of a position where the baby is present (baby bed) and a position where
the adult is present and may input the "required environment setting" in which the
airflow direction is designated so that the airflow only directly blows towards the
adult. In this case, the driving control unit 215 transmits a control command for
controlling the louver 32 to the air conditioning indoor unit 3 so that the airflow
is not transmitted toward the transmitter 4 disposed at the baby bed and the airflow
is transmitted toward the transmitter 4 disposed at the position where the adult is
present.
[0071] Therefore, the driving control unit 215 is able to allow the air conditioning environment
in the "transmitter direction" or the "transmitter position" of the transmitter 4
to be close to the environment according to the "required environment setting" requested
by the user.
[0072] In addition, in a case where the reception unit 33 has not detected the reception
of the radio wave from the transmitter 4 (step S10: NO), the radio wave detection
unit 211 determines whether or not a predetermined waiting time (for example, three
minutes) has elapsed (step S15).
[0073] In a case where the radio wave detection unit 211 has not detected the reception
of the radio wave even after the predetermined waiting time has elapsed since a reception
of a previous radio wave (step S15: YES), the radio wave detection unit 211 determines
that the error in which the radio wave is not able to be radiated has occurred in
the transmitter 4, and transmits a control command for notifying the air conditioning
indoor unit 3 of the error (step S16). Then, the air conditioning indoor unit 3 notifies
the user through the notification unit 34 that the error has occurred in the transmitter
4.
[0074] On the other hand, in a case where the predetermined waiting time has not elapsed
(step S15: NO), the radio wave detection unit 211 returns to step S10.
[0075] FIG. 6 is a flowchart showing an example of a process of the transmitter according
to an embodiment of the present invention. As shown in FIG. 6, the transmitter 4 determines
whether or not a predetermined transmission time (for example, one minute) has passed
(step S20).
[0076] In a case where the predetermined transmission time has elapsed (step S20: YES),
the transmitter 4 acquires the "environment information" indicating the air conditioning
environment (temperature, humidity, and the like) in the vicinity of the transmitter
4 from the sensor 41 (step S21).
[0077] Next, the transmitter 4 radiates the radio wave in which the "transmitter ID" that
is set in the transmitter 4 in advance and the "environment information" acquired
in step S21 are superimposed (step S22).
[0078] In addition, in a case where the predetermined transmission time has elapsed (step
S20: NO), the transmitter 4 returns to step S20.
[0079] The transmitter 4 periodically radiates the radio wave capable of estimating the
"transmitter direction" or the "transmitter position" of the transmitter 4 and capable
of acquiring the "environment information" in the vicinity of the transmitter 4, by
repeatedly executing the above-described processes during operation.
[0080] FIG. 6 shows an example in which the transmitter 4 radiates the radio wave every
time the predetermined transmission time elapses, but the present invention is not
limited thereto. In another embodiment, the transmitter 4 may radiate the radio wave
when the position of the transmitter 4 changes. In this case, for example, the sensor
41 of the transmitter 4 may have an acceleration sensor, and the radio wave transmission-processing
unit 432 may radiate the radio wave when the acceleration sensor detects a movement
of the transmitter 4.
(Hardware configuration)
[0081] FIG. 7 is a diagram showing an example of a hardware configuration of the control
device and the transmitter according to an embodiment of the present invention.
[0082] Hereinafter, an example of the hardware configuration of the control device 2 and
the transmitter 4 will be described with reference to FIG. 7.
[0083] As shown in FIG. 7, a computer 900 includes a CPU 901, a main storage device 902,
an auxiliary storage device 903, and an interface 904.
[0084] The control device 2 and the transmitter 4 described above are mounted on the computer
900. In addition, the operations of each of the processing units described above are
stored in the auxiliary storage device 903 in a form of a program. The CPU 901 reads
the program from the auxiliary storage device 903, develops the program in the main
storage device 902, and executes the above-described process according to the program.
In addition, in accordance with the program, the CPU 901 secures a storage region
used by the control device 2 and the transmitter 4 for various processes in the main
storage device 902. In addition, in accordance with the program, the CPU 901 secures
a storage region for storing data under a process in the auxiliary storage device
903.
[0085] Examples of the auxiliary storage device 903 may include a hard disk drive (HDD),
a solid-state drive (SSD), a magnetic disk, a magneto-optical disk, a compact disc
read-only memory (CD-ROM), a digital versatile disc read-only memory (DVD-ROM), a
semiconductor memory, and the like. The auxiliary storage device 903 may be an internal
medium directly connected to a bus of the computer 900 or may be an external medium
connected to the computer 900 through an interface 904 or a communication line. In
addition, in a case where the program is delivered to the computer 900 through the
communication line, the computer 900 receiving the delivery may develop the program
in the main storage device 902 and execute the process described above. In at least
one embodiment, the auxiliary storage device 903 is a non-transitory tangible storage
medium.
[0086] In addition, the program may be for realizing a part of the above-described function.
Furthermore, the program may be a so-called difference file (difference program) that
realizes the above-described function by a combination with another program that is
stored in the auxiliary storage device 903 in advance.
(Advantageous effects)
[0087] As described above, the control device 2 of the air conditioning system 1 of the
present embodiment is the control device 2 that controls the air conditioning indoor
unit 3. The control device 2 includes the radio wave detection unit 211 configured
to detect the radio waves radiated from the transmitter 4 through at least two reception
units 33 provided in the air conditioning indoor unit 3, the direction estimation
unit 212 configured to estimate the "transmitter direction" indicating the direction
in which the transmitter 4 is disposed on the basis of the radio waves received by
each of the reception units 33, the environment information acquisition unit 213 configured
to acquire the "environment information" indicating the air conditioning environment
in the "transmitter direction", which is included in the radio waves, the required
environment acquisition unit 214 configured to acquire the "required environment setting"
requested by the user, and the driving control unit 215 configured to control the
air conditioning indoor unit 3 so that the air conditioning environment in the "transmitter
direction" satisfies the "required environment setting". According to the above configuration,
for example, even in a case where an obstacle is present between the air conditioning
indoor unit 3 and the transmitter 4, it is possible to estimate the "transmitter direction"
in which the transmitter 4 is disposed. Thus, since the control device 2 is capable
of adjusting the air conditioning environment in the direction in which the transmitter
4 is disposed according to an intention of the user by disposing the transmitter 4
in a place where the user preferentially wishes to adjust the air conditioning environment,
it is possible to greatly improve comfort of the user.
[0088] In addition, the reception units 33 are disposed at different positions in the horizontal
direction, and the direction estimation unit 212 estimates the "transmitter direction"
on the basis of the intensities of the radio waves received by each of the reception
units 33 from the transmitter 4.
[0089] Therefore, the direction estimation unit 212 is capable of accurately estimating
the direction in which the transmitter 4 is disposed (two-dimensional position).
[0090] In addition, the air conditioning indoor unit 3 is provided with three or more reception
units 33, and the direction estimation unit 212 further estimates the "transmitter
position" indicating the position of the transmitter 4 on the basis of the intensities
of the radio waves received by each of the three or more reception units 33 from the
transmitter 4.
[0091] According to the above configuration, the control device 2 is capable of estimating
the "transmitter position" indicating the three-dimensional position where the transmitter
4 is disposed and adjust the air conditioning environment in the vicinity of the "transmitter
position" according to the intention of the user. Thus, the control device 2 is capable
of further improve the comfort of the user.
[0092] In addition, the direction estimation unit 212 estimates the "transmitter direction"
or the "transmitter position" of each of the plurality of transmitter 4, the required
environment acquisition unit 214 acquires the different "required environment settings"
for each of the transmitters, and the driving control unit 215 controls the air conditioning
indoor unit 3 so that the air conditioning environment in "transmitter direction"
or the "transmitter position" of each of the plurality of transmitter 4 satisfies
the "required environment settings" for each of the transmitters.
[0093] According to the above configuration, by disposing the transmitter 4 in each of a
plurality of places where the user wishes to adjust the air conditioning environment,
the control device 2 is capable of appropriately adjusting a range where the airflow
blows, for example, the airflow blows in a certain direction (position) and the airflow
does not blow in another direction (position), etc., according to a preference of
each of a plurality of users. Accordingly, the control device 2 is capable of improving
the comfort of each of the plurality of users.
[0094] In addition, the control device 2 further includes the error detection unit 216 configured
to detect the occurrence of the error in the transmitter 4 in a case where the radio
wave from the transmitter 4 is not received even after a predetermined waiting time
has elapsed.
[0095] According to the above configuration, the control device 2 is capable of detecting
that the radio wave is not able to be radiated due to, for example, a failure of the
transmitter 4 or battery exhaustion.
[0096] In addition, in a case where the failure of the transmitter 4 or the battery exhaustion
has occurred, the control device 2 is able to quickly allow the user to recognize
the failure of the transmitter 4 or the battery exhaustion by notifying the user of
the detected error through the notification unit 34 of the air conditioning indoor
unit 3.
[0097] In addition, since the environment information acquisition unit 213 periodically
acquires the "environment information" in the vicinity of the transmitter 4, the driving
control unit 215 is capable of performing the driving control of the air conditioning
indoor unit 3 while sequentially checking whether the air conditioning environment
in the vicinity of the transmitter 4 is close to the "required environment setting".
According to the above configuration, the driving control unit 215 is capable of adjusting
the air conditioning environment in the vicinity of the transmitter 4 with high precision
so that the air conditioning environment satisfies the "required environment setting"
as much as possible. Thus, the control device 2 is capable of providing a more comfortable
air conditioning environment closer to the request of the user.
[0098] In the embodiments, an example in which the transmitter 4 and the remote controller
5 are different devices has been described, but the present invention is not limited
thereto. In alternative embodiments, the remote controller 5 may include each functional
part of the transmitter 4.
[0099] In this case, similarly to the transmitter 4, the remote controller 5 radiates the
radio wave in which the "required environment setting" received from the user is superimposed
to the reception unit 33 of the air conditioning indoor unit 3, by using the technology
such as Bluetooth (registered trademark).
[0100] Even with such an aspect, it is possible to obtain the same advantageous effects
as the above-described embodiment.