EP3043119A1 - Système de climatisation - Google Patents

Système de climatisation Download PDF

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Publication number
EP3043119A1
EP3043119A1 EP14857969.1A EP14857969A EP3043119A1 EP 3043119 A1 EP3043119 A1 EP 3043119A1 EP 14857969 A EP14857969 A EP 14857969A EP 3043119 A1 EP3043119 A1 EP 3043119A1
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EP
European Patent Office
Prior art keywords
air
air conditioner
indoor
human
human detection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP14857969.1A
Other languages
German (de)
English (en)
Other versions
EP3043119B1 (fr
EP3043119A4 (fr
Inventor
Ryouta SUHARA
Takayoshi Yamamoto
Tomoo MASUDA
Tsuyoshi Yokomizo
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Daikin Industries Ltd
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Daikin Industries Ltd
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Publication date
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Publication of EP3043119A1 publication Critical patent/EP3043119A1/fr
Publication of EP3043119A4 publication Critical patent/EP3043119A4/fr
Application granted granted Critical
Publication of EP3043119B1 publication Critical patent/EP3043119B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/46—Improving electric energy efficiency or saving
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/56—Remote control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
    • F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F24F11/66—Sleep mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2120/00—Control inputs relating to users or occupants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2120/00—Control inputs relating to users or occupants
    • F24F2120/10—Occupancy

Definitions

  • a rotation operation technique has been known in the art.
  • a plurality of air conditioners are provided to air-condition the same target space, and at least one, but not all, of the plurality of air conditioners is deactivated sequentially.
  • An air-conditioning system of Patent Document 1 includes six air conditioners provided to air-condition the same target space and controlled by a single centralized controller. This air conditioning system performs a rotation operation in which, for example, one of the six air conditioners is deactivated sequentially, while the other five air conditioners are activated. The rotation operation is performed on the premise that the target space is air-conditioned sufficiently by the activated air conditioner only.
  • an air-conditioning system provided with a plurality of air conditioners for air-conditioning the same target space may be configured to perform the rotation operation and the control based on the human detection in combination.
  • an object of the present invention to reduce the power consumed by, and eventually extend the life of, an air conditioning system which is configured to perform a rotation operation and control based on human detection by substantially preventing the system from performing such an excessive operation.
  • the human detection sensor (51) senses the presence of a human in the room, the absence operation is not performed on the air conditioner (10) provided with this human detection sensor (51). That is, as long as the human detection sensor (51) senses the presence of a human in the room, the air conditioner (10) provided with this human detection sensor (51) is ready to be activated.
  • the human detection sensor (51) associated with the air conditioner (10) deactivated under the rotation operation has sensed the presence of a human in the room. In that case, if this air conditioner (10) were activated independently of the rotation operation, the excessive operation would be performed.
  • FIG. 1 shows an exemplary configuration of an air-conditioning system (1) according to an embodiment.
  • the air-conditioning system (1) includes a plurality of air conditioners (10) conditioning the air in a room and a remote controller (20).
  • the plurality of air conditioners (10) is comprised of first to third air conditioners (10a-10c), which are arranged in the same room.
  • This air-conditioning system (1) performs a rotation operation in which at least one, but not all, of the first to third air conditioners (10a-10c) is deactivated sequentially, and human detection control in which the operational states of the air conditioners (10) are switched according to the presence/absence of a human in the room.
  • the rotation operation and the human detection control will be described in detail later.
  • the compressor (31) has its discharge end connected to a first port of the four-way switching valve (32), and its suction end connected to a second port of the four-way switching valve (32), respectively.
  • the outdoor heat exchanger (33), the expansion valve (34), and the indoor heat exchanger (35) are arranged in this order between a third port and a fourth port of the four-way switching valve (32).
  • the outdoor fan (36) is arranged near the outdoor heat exchanger (33), and the indoor fan (37) is arranged near the indoor heat exchanger (35).
  • the four-way switching valve (32) is switchable between a first state (indicated by the solid curves in FIG. 2 ) where the first port communicates with the third port and the second port communicates with the fourth port, and a second state (indicated by the broken curves in FIG. 2 ) where the first port communicates with the fourth port and the second port communicates with the third port.
  • the outdoor fan (36) supplies outdoor air to the outdoor heat exchanger (33).
  • the outdoor heat exchanger (33) allows the outdoor air transported by the outdoor fan (36) to exchange heat with the refrigerant.
  • the outdoor heat exchanger (33) is configured as a cross-fin type fin-and-tube heat exchanger.
  • the expansion valve (34) is configured to adjust the pressure of the refrigerant, and have its degree of opening adjustable.
  • the expansion valve (34) is configured as an electronic expansion valve.
  • the indoor temperature sensor (50) is arranged in the indoor unit (12) upstream of the indoor heat exchanger (35) (upstream in the flow direction of the air), and thus the temperature detected by the indoor temperature sensor (50) is substantially equal to the indoor air temperature.
  • the indoor air temperature detected by the indoor temperature sensor (50) is transmitted to the indoor controller (42).
  • Each of the outdoor and indoor controllers (41) and (42) is comprised of a CPU, a memory and any other suitable elements, and these controllers are electrically connected to each other through wires to communicate with each other. Further, the outdoor and indoor controllers (41) and (42) are also connected electrically to, and communicate with, the control section (23) of the remote controller (20) through wires.
  • the outdoor controller (41) controls the operation of the compressor (31), the four-way switching valve (32), the expansion valve (34), and the outdoor fan (36) that are provided in the outdoor unit (11).
  • the indoor controller (42) controls the operation of the indoor fan (37) provided in the indoor unit (12). In this way, the operation of the refrigerant circuit (30), the outdoor fan (36), and the indoor fan (37) is controlled to control the operation of the air conditioner (10).
  • the memory (not shown) of the indoor controller (42) stores a target temperature which is set in advance with respect to the indoor air temperature.
  • the indoor controller (42) includes a human detection controller which performs human detection control to be described later.
  • the air conditioner (10) conditions the indoor air such that the indoor air temperature detected by the indoor temperature sensor (50) becomes as close to the preset target temperature as possible. Specifically, the air conditioner (10) performs cooling and heating operations.
  • the outdoor and indoor controllers (41) and (42) set the four-way switching valve (32) to be the first state (indicated by the solid curves in FIG. 2 ), and drives the compressor (31), the outdoor fan (36), and the indoor fan (37).
  • the outdoor heat exchanger (33) functions as a condenser
  • the indoor heat exchanger (35) functions as an evaporator.
  • a high-pressure refrigerant compressed by the compressor (31) flows into the outdoor heat exchanger (33) and dissipates heat to the outdoor air in the outdoor heat exchanger (33) to condense.
  • the refrigerant condensed in the outdoor heat exchanger (33) has its pressure reduced by the expansion valve (34), flows into the indoor heat exchanger (35), and then absorbs heat from the indoor air in the indoor heat exchanger (35) to evaporate. Thus, the indoor air is cooled.
  • the refrigerant evaporated in the indoor heat exchanger (35) is sucked into, and compressed again by, the compressor (31).
  • the outdoor and indoor controllers (41) and (42) set the four-the way switching valve (32) to be the second state (indicated by broken curves in FIG. 2 ), and drives the compressor (31), the outdoor fan (36), and the indoor fan (37).
  • the indoor heat exchanger (35) functions as a condenser
  • the outdoor heat exchanger (33) functions as an evaporator.
  • a high-pressure refrigerant compressed by the compressor (31) flows into the indoor heat exchanger (35) and dissipates heat to the indoor air in the indoor heat exchanger (35) to condense.
  • the indoor air is heated.
  • the refrigerant condensed in the indoor heat exchanger (35) has its pressure reduced by the expansion valve (34), flows into the outdoor heat exchanger (33), and then absorbs heat from the outdoor air in the outdoor heat exchanger (33) to evaporate.
  • the refrigerant evaporated in the outdoor heat exchanger (33) is sucked into, and compressed again by, the compressor (31).
  • each of the air conditioners (10) is either inactive or active.
  • the memory (not shown) of the indoor controller (42) of the air conditioner (10) stores a deactivation bit value indicating whether the air conditioner (10) is inactive or not.
  • the deactivation bit value is "1" if the air conditioner (10) is inactive, or is "0” if the air conditioner (10) is not inactive (i.e., if the air conditioner (10) is active).
  • the outdoor and indoor controllers (41) and (42) turn OFF the compressor (31), the outdoor fan (36), and the indoor fan (37).
  • the outdoor and indoor controllers (41) and (42) turn ON the compressor (31), the outdoor fan (36), and the indoor fan (37).
  • the compressor (31) and the fans (36, 37) may be turned OFF when the indoor air temperature reaches a target temperature range (a so-called "thermo-off" operation may be performed).
  • control section (23) of the remote controller (20) sets the air conditioner (10) to be either inactive or active.
  • the control section (23) transmits a deactivate command (e.g., an instruction code including the deactivation bit value of "1") to the air conditioner (10) to be selected as an inactive one among the plurality of air conditioners (10).
  • a deactivate command e.g., an instruction code including the deactivation bit value of "1"
  • the CPU (not shown) of the indoor controller (42) sets the deactivation bit value stored in the memory (not shown) of the indoor controller (42) to be "1" upon receiving the deactivate command from the control section (23). In this way, the air conditioner (10) is selected as an inactive one.
  • control section (23) transmits a cancel deactivation command (e.g., an instruction code including the deactivation bit value of "0") to the air conditioner (10) to be selected as an active one among the plurality of air conditioners (10).
  • a cancel deactivation command e.g., an instruction code including the deactivation bit value of "0"
  • the CPU of the indoor controller (42) sets the deactivation bit value stored in the memory of the indoor controller (42) to be "0" upon receiving the cancel deactivation command from the control section (23). In this way, the air conditioner (10) is selected as an active one.
  • the rotation operation will be described with reference to FIG. 3 . If a rotation start manipulation (a manipulation to instruct the start of the rotation operation) is done on the operating section (22) of the remote controller (20), the air-conditioning system (1) performs the following processing (an initial operation, a partial deactivation operation, and a transitional operation).
  • a rotation start manipulation a manipulation to instruct the start of the rotation operation
  • the air-conditioning system (1) performs the following processing (an initial operation, a partial deactivation operation, and a transitional operation).
  • the memory (not shown) of the control section (23) of the remote controller (20) stores information about the order of operation of the air conditioners (10) during the rotation operation (such as the number of the air conditioners to be deactivated and the order of selection of the air conditioners to be deactivated).
  • the memory of the control section (23) also stores information about the duration of operation during the rotation operation (such as an initial operation duration (T0), a partial deactivation duration (T1) and a transitional operation duration (T2)).
  • the initial operation duration (T0) and the transitional operation duration (T2) may be set to be 0.5 hours
  • the partial deactivation duration (T1) may be set as appropriate in the range of 2.5 to 95.5 hours.
  • an initial operation is performed.
  • the number of the air conditioners (10) activated during the initial operation is larger than the number of the air conditioners (10) activated during the partial deactivation operation.
  • the control section (23) selects the air conditioner (10) to be activated from among the plurality of air conditioners (10) based on the predetermined order of operation.
  • Each of the air conditioners (10) selected as the ones to be activated performs the cooling and heating operations (which will be hereinafter collectively referred to as "air-conditioning operations").
  • control section (23) determines whether or not the predetermined initial operation duration (T0) has passed since the start of the initial operation. Specifically, the control section (23) starts to measure the amount of time passed when the air conditioner (10) to be activated is selected in Step (ST11), and then determines whether or not the amount of time passed has reached the initial operation duration (T0). If the initial operation duration (T0) has passed, the process proceeds to Step (ST13).
  • the partial deactivation operation is performed.
  • at least one (but not all) predetermined air conditioner (10), selected from among the plurality of air conditioners (10) is deactivated, while the other air conditioners (10) condition the indoor air.
  • the control section (23) selects the air conditioner (10) to be deactivated from the active ones (10) of the plurality of air conditioners (10) based on the predetermined order of operation.
  • the air conditioner (10) selected as the one to be deactivated stops the air conditioning operation.
  • control section (23) determines whether or not the predetermined partial deactivation duration (T1) has passed since the start of the partial deactivation operation. Specifically, the control section (23) starts to measure the amount of time passed when the air conditioner (10) to be deactivated is selected in Step (ST13), and then determines whether or not the amount of time passed has reached the partial deactivation duration (T1). If the partial deactivation duration (T1) has passed, the process proceeds to Step (ST15).
  • the transitional operation is performed.
  • the air conditioner (10) which will be deactivated next among the plurality of air conditioners (10) continues the air-conditioning operation, while at least one, or all, of the currently inactive air conditioners (10) resume the air-conditioning operation.
  • the control section (23) selects an air conditioner (10) to be activated from the inactive ones (10) of the plurality of air conditioners (10) based on the predetermined order of operation.
  • the air conditioner (10) selected as the one to be activated resumes the air-conditioning operation.
  • control section (23) determines whether or not the predetermined transitional operation duration (T2) has passed since the start of the transitional operation. Specifically, the control section (23) starts to measure the amount of time passed when the air conditioner (10) to be activated is selected in Step (ST15), and then determines whether or not the amount of time passed has reached the transitional operation duration (T2). If the transitional operation duration (T2) has passed, the process proceeds to Step (ST13).
  • At least one, but not all, of the plurality of air conditioners (10) is deactivated sequentially. Further, if a rotation end manipulation (a manipulation instructing the system to end the rotation operation) is done on the operating section (22) of the remote controller (20), the control section (23) of the remote controller (20) selects all of the plurality of air conditioners (10) as those to be activated, and ends the processing for the rotation operation. In this manner, the rotation operation ends.
  • a rotation end manipulation a manipulation instructing the system to end the rotation operation
  • one of the first to third air conditioners (10a-10c) is selected as the one to be deactivated during the partial deactivation operation so that the first to third air conditioners (10a-10c) are sequentially deactivated one by one by beginning with the first air conditioner (10a). Further, during the initial operation, all of the first to third air conditioners (10a-10c) are selected as those to be activated.
  • a rotation start manipulation is done on the operating section (22) of the remote controller (20) to activate all of the first to third air conditioners (10a-10c).
  • the control section (23) of the remote controller (20) transmits the cancel deactivation command to all of the first to third air conditioners (10a-10c).
  • the three air conditioners (10a-10c) condition the indoor air during the initial operation.
  • the first air conditioner (10a) is selected at Time (t1) as the one to be deactivated from the first to third air conditioners (10a-10c) that are currently activated.
  • the control section (23) transmits the deactivate command to the first air conditioner (10a).
  • the two air conditioners (10b, 10c) other than the first air conditioner (10a) condition the indoor air.
  • the first air conditioner (10a) that has been inactive is selected as the one to be activated.
  • the control section (23) transmits the cancel deactivation command to the first air conditioner (10a).
  • the second air conditioner (10b) which will be deactivated next continues the air-conditioning operation, and the first air conditioner (10a) that has been inactive resumes the air-conditioning operation.
  • the third air conditioner (10c) also continues the air-conditioning operation.
  • the three air conditioners (10a-10c) condition the indoor air.
  • the second air conditioner (10b) is selected as the one to be deactivated from the first to third air conditioners (10a-10c) that are currently active.
  • the two air conditioners (10a, 10c) other than the second air conditioner (10b) condition the indoor air.
  • the second air conditioner (10b) that has been inactive is selected as the one to be activated.
  • the third air conditioner (10c) which will be deactivated next continues the air-conditioning operation, and the second air conditioner (10b) that has been inactive resumes the air-conditioning operation.
  • the first air conditioner (10a) also continues the air-conditioning operation.
  • the three air conditioners (10a-10c) condition the indoor air.
  • the third air conditioner (10c) is selected as the one to be deactivated from the first to third air conditioners (10a-10c) that are currently active.
  • the two air conditioners (10a, 10b) other than the third air conditioner (10c) condition the indoor air.
  • the third air conditioner (10c) that has been inactive is selected as the one to be activated.
  • the first air conditioner (10a) which will be deactivated next continues the air-conditioning operation
  • the third air conditioner (10c) that has been inactive resumes the air-conditioning operation.
  • the second air conditioner (10b) also continues the air-conditioning operation.
  • the three air conditioners (10a-10c) condition the indoor air.
  • the first air conditioner (10a) is selected again as the one to be deactivated from the first to third air conditioners (10a-10c) that are currently active.
  • the two air conditioners (10b, 10c) other than the first air conditioner (10a) condition the indoor air.
  • At least one, but not all, of the plurality of air conditioners (10) is deactivated sequentially, and therefore, the operating durations of the plurality of air conditioners (10) may be leveled with each other. Further, a decrease in the air-conditioning capacity of the air-conditioning system (1) in the beginning of the rotation operation may be minimized by performing the initial operation in the beginning of the rotation operation.
  • the active air conditioner (10) which will be deactivated next may be turned from the active one into the inactive one after the inactive air conditioner (10) has been switched into be active one. This may minimize a decrease in the air-conditioning capacity of the air-conditioning system (1) due to the switch of the air conditioner (10) from the inactive state to the active state.
  • a human detection start manipulation (a manipulation instructing the system to start the human detection control) is done on the operating section (22) of the remote controller (20)
  • the air-conditioning system (1) performs the following processing.
  • the following processing is performed in the respective indoor units (12). That is, the indoor controller (42) provided in the indoor unit (12) of the first air conditioner (10a) performs the processing steps (ST21)-(ST23) based on the output of the first human detection sensor (51 a).
  • the same is applied to the second and third air conditioners (10b) and (10c).
  • the indoor controller (42) determines whether the human detection sensor (51) of the indoor unit (12) has sensed the presence or absence of a human in the room. Then, if the human detection sensor (51) has sensed the presence of a human, the process proceeds to Step (ST22). On the other hand, if the human detection sensor (51) has sensed the absence of a human, the process proceeds to Step (ST23).
  • the indoor controller (42) makes the air conditioner (10) associated with this human detection sensor (51) perform the air-conditioning operation.
  • the air conditioner (10) around which there is a human performs the air-conditioning operation.
  • the air conditioner (10) selected as an inactive machine under the rotation operation is not selected as the machine to be activated even if the human detection sensor (51) associated with that air conditioner (10) senses the presence of a human in the room. Then, the process goes back to Step (ST21) again.
  • the indoor controller (42) performs an absence operation. Specifically, the indoor controller (42) selects the air conditioner (10) associated with the human detection sensor (51) which has sensed the absence of a human as an inactive air conditioner. Thus, the air conditioner (10) around which no human is present remains inactive. Then, the process goes back to Step (ST21) again.
  • the operational states of the air conditioners (10) are switched depending on the presence/absence of a human in the room. Then, when a human detection end manipulation (a manipulation instructing the system to end the human detection control) is done on the operating section (22) of the remote controller (20), the human detection control ends.
  • a human detection end manipulation a manipulation instructing the system to end the human detection control
  • the human detection control will be described in detail.
  • the air-conditioning system (1) performs the human detection control during the rotation operation.
  • the human detection control including the absence operation may be selectively turned ON and OFF. Now, a situation where the human detection control is executed (see FIG. 6 ) will be described first, and then a situation where the human detection control is aborted (see FIG. 7 ) will be described next.
  • a rotation start manipulation and a human detection start manipulation are done on the operating section (22) of the remote controller (20).
  • the above-described rotation operation is started, and the human detection control is performed. That is, the air-conditioning system is ready to perform the absence operation if the human detection sensor (51) senses the absence of a human.
  • the third human detection sensor (51c) senses the absence of a human.
  • the third air conditioner (10c) which has been selected as an active machine under the rotation operation, stops the air conditioning operation under the absence operation.
  • the first air conditioner (10a) has been selected as an active machine, and the second air conditioner (10b) has been selected as an inactive machine under the rotation operation.
  • the third human detection sensor (51 c) senses again the presence of a human in the room. Then, the absence operation is not performed any more, and the third air conditioner (10c) is selected as an active machine again. Thus, the third air conditioner (10c) performs the air conditioning operation. Further, at Time (t9), the first air conditioner (10a) has been selected as an active machine, and the second air conditioner (10b) has been selected as an inactive machine under the rotation operation. Thus, the two air conditioners (10a, 10c) other than the second air conditioner (10b) condition the indoor air.
  • the first air conditioner (10a) has been selected as an inactive machine under the rotation operation.
  • the first human detection sensor (51a) of the first air conditioner (10a) senses the presence of a human during the same period. Under these conditions, the first air conditioner (10a) does not perform the air-conditioning operation during the same period. That is, the first air conditioner (10a) that has been selected as an inactive machine under the rotation operation remains inactive even if the first human detection sensor (51 a) senses the presence of a human in the room.
  • each of the air conditioners (10a-10c) that has been deactivated under the rotation operation remains inactive even if the associated human detection sensor (51a-51c) senses the presence of a human in the room.
  • the excessive operation is not performed, and thus, the power consumption may be reduced, and the life of the air-conditioning system (1) may be extended.
  • the first to third air conditioners (10a-10c) are inactive for the partial deactivation duration (T1) when they are deactivated under the rotation operation.
  • the third air conditioner (10c) which has been inactive during the period from Time (t8) to Time (t9) under the absence operation is also inactive during the subsequent period from Time (t5) to Time (t6) (i.e., for the partial deactivation duration (T1)).
  • the duration of the deactivation period (the partial deactivation duration (T1)) of the first to third air conditioners (10a-10c) under the rotation operation does not change depending on whether the air conditioners are deactivated under the absence operation or not. Therefore, it is not necessary to change the duration of the deactivation period under the rotation operation depending on whether the absence operation is performed or not. This facilitates the control during the rotation operation.
  • a rotation start manipulation is done on the operating section (22) of the remote controller (20), but a human detection start manipulation is not. Then, the above-described rotation operation is started, while the human detection control is not performed. That is, the absence operation is not performed even if the human detection sensor (51) senses the absence of a human.
  • the third human detection sensor (51c) senses the absence of a human.
  • the third air conditioner (10c) has been selected as an active machine under the rotation operation. Since the absence operation is not performed even if the third human detection sensor (51c) senses the absence of a human, the third air conditioner (10c) remains active. Thus, the third air conditioner (10c) performs the air-conditioning operation without a break during the period from Time (t8) to Time (t9).
  • the first air conditioner (10a) has been selected as an active machine
  • the second air conditioner (10b) has been selected as an inactive machine, under the rotation operation.
  • the two air conditioners (10a, 10c) other than the second air conditioner (10b) condition the indoor air.
  • FIG. 7 illustrates the detection states of the human detection sensors (51) to show the relationship between the presence/absence of a human and the operational states of the air conditioners (10).
  • the detection function of the human detection sensors (51) may be disabled when the human detection control is aborted.
  • the operational states of the air conditioners (10) do not change depending on the presence/absence of a human in the room. This is particularly advantageous when the air conditioning by a certain number of air conditioners (10) is required even in the absence of a human in the room (e.g., at a data center).
  • the air conditioner (10) that has been deactivated under the rotation operation remains inactive even if the human detection sensor (51) senses the presence of a human in a room.
  • the excessive operation is not performed, and thus, the power consumption may be reduced, and the life of the entire air conditioning system (1) may be extended.
  • the human detection control including the absence operation may be selectively turned ON and OFF. This makes it possible to determine, on an application basis, whether or not the air conditioner (10) should be switched between the active and inactive states depending on the presence/absence of a human, and thus, an air-conditioning system (1) optimized for respective applications may be provided.
  • each of the air conditioners (10) does not have the duration of its deactivation period under the rotation operation changed depending on whether the air conditioner is deactivated under the absence operation or not.
  • the deactivate command and the cancel deactivation command are transmitted from the control section (23) of the remote controller (20) to each of the plurality of air conditioners (10).
  • the deactivate command may be circulated among the plurality of air conditioners (10). That is, the air-conditioning system may be configured such that each of the plurality of air conditioners (10) sets the other air conditioners (10) to be inactive or active.
  • the air-conditioning system may be configured such that the air conditioner (10) is set to be inactive upon receiving the deactivate command, switches itself from the inactive state to the active state when the partial deactivation duration (T1) passes since the point in time when it was set to be inactive, and then transmits the deactivate command to a predetermined one of the air conditioners (10) when the transition operation duration (T2) passes.
  • the control section (23) of the remote controller (20) may transmit the deactivate command to any one of the plurality of air conditioners (10) to start the rotation operation. That is, the control section (23) of the remote controller (20) allows at least one, but not all, of the plurality of air conditioners (10) to be deactivated sequentially.
  • the indoor controller (42) of each of the air conditioners (10) is supposed to perform the processing of the human detection control.
  • the processing of the human detection control does not have to be performed by the indoor controller (42), but may also be performed by the control section (23) of the remote controller (20), for example.
  • the air conditioner (10) is supposed to have a single outdoor unit (11) and a single indoor unit (12).
  • the numbers of the outdoor and indoor units are not limiting ones, but the air conditioner (10) may have a single outdoor unit (11) and two or more indoor units (12).
  • the present invention is useful for an air-conditioning system performing a rotation operation.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Thermal Sciences (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)
EP14857969.1A 2013-10-31 2014-09-09 Système de climatisation Active EP3043119B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013226705A JP5910610B2 (ja) 2013-10-31 2013-10-31 空気調和システム
PCT/JP2014/004624 WO2015063996A1 (fr) 2013-10-31 2014-09-09 Système de climatisation

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EP3043119A1 true EP3043119A1 (fr) 2016-07-13
EP3043119A4 EP3043119A4 (fr) 2017-06-07
EP3043119B1 EP3043119B1 (fr) 2021-04-07

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JP (1) JP5910610B2 (fr)
CN (1) CN105473947B (fr)
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CN106196445A (zh) * 2016-07-12 2016-12-07 广东美的制冷设备有限公司 空调及其控制方法
WO2019049363A1 (fr) * 2017-09-11 2019-03-14 三菱電機株式会社 Climatiseur et procédé de commande de climatiseur
JP2019190768A (ja) * 2018-04-26 2019-10-31 三菱電機株式会社 環境制御システム
CN110131845B (zh) * 2019-05-22 2021-03-30 广东美的暖通设备有限公司 一种空调器及其控制方法、计算机可读存储介质

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JP2015087067A (ja) 2015-05-07
CN105473947A (zh) 2016-04-06
AU2014341785A1 (en) 2016-05-19
EP3043119B1 (fr) 2021-04-07
AU2014341785B2 (en) 2018-01-25
EP3043119A4 (fr) 2017-06-07
JP5910610B2 (ja) 2016-04-27
WO2015063996A1 (fr) 2015-05-07
CN105473947B (zh) 2018-03-23

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