JP2008256260A - Air conditioning system and air-conditioning management device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioning system capable of sufficiently reducing not only energy consumption but also calculation load of an air-conditioning management device. <P>SOLUTION: In this air conditioning system 1, a normally-thermo-off state determining portion 22 determines whether each of a plurality of indoor machines 62 is in a normally-thermo-off state or not in a first period first. Then, a normally-thermo-off state indoor machine number counting portion 22 counts the number of normally-thermo-off state indoor machines. Subsequently, an excess number determining portion determines whether the number of thermally thermo-off state indoor machines is more than a prescribed threshold value or not. A control portion 21 stops the normally-thermo-off state indoor machines excluding at least one normally-thermo-off state indoor machine, when it is determined that the number of the normally-thermo-off indoor machines is more than the prescribed threshold value by the excess number determining portion. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an air conditioning system that can reduce not only consumption energy but also a calculation load of an air conditioning management device. The present invention also relates to an air conditioning management device that can sufficiently reduce the energy consumption of an air conditioning system with a low computational load.

In the past, “Multi-type air conditioner with multiple indoor units arranged in one target space, energy consumption of outdoor unit, total energy consumption of multi-type air conditioner, and weather information etc. An “air conditioning system” including an air conditioning management device that controls the number of operating indoor units arranged in a target space has been proposed (see, for example, Patent Document 1). If this technology is used, the energy consumption of the multi-type air conditioner can be reduced.
JP 2006-220345 A (page 18)

  However, in such a case, the air conditioning management device must calculate the power apportioning value of each indoor unit after calculating the air conditioning load from the weather information. Since such calculation is relatively complicated, there is a problem that the calculation load of the air conditioning management device becomes relatively high.

  An object of the present invention is to provide an air conditioning system that can sufficiently reduce not only energy consumption but also a calculation load of an air conditioning management device. Another object of the present invention is to provide an air conditioning management device capable of sufficiently reducing the energy consumption of the air conditioning system with a low calculation load.

  The air conditioning system according to the first aspect of the present invention includes a plurality of indoor units, a constantly thermo-off state determining unit, a constantly thermo-off state indoor unit number counting unit, an excess number determining unit, and a control unit. The constantly thermo-off state determination unit determines whether or not each of the plurality of indoor units is always in a thermo-off state within the first period. Whether the indoor unit is in a thermo-on state or a thermo-off state depends on the opening of the expansion valve, the temperature difference between the suction temperature and the set temperature, and the compressor stop (pair type or integrated type (floor type) air conditioning) Etc.). The constantly thermo-off state indoor unit count unit counts the number of constantly thermo-off state indoor units. The “always thermo-off state indoor unit” referred to here is an indoor unit that is determined to be always in the thermo-off state within the first period by the constant thermo-off state determination unit. The excess number determination unit determines whether or not the number of indoor units that are always in a thermo-off state is greater than a predetermined threshold value. When the excess number determining unit determines that the number of constantly-off thermostat indoor units is greater than a predetermined threshold, the controller stops at least one always-off thermostat indoor unit and stops other always-off thermostat indoor units. Let Note that the number of indoor units that are always in the thermo-off state (that is, the indoor units that are always in the thermo-off state that is not stopped) may be any number, for example, the same number as the threshold or one more than the threshold The number may be one less than the threshold value.

  In this air conditioning system, first, the constantly thermo-off state determining unit determines whether or not each of the plurality of indoor units is always in the thermo-off state within the first period. Next, a constant thermo-off state indoor unit count unit counts the number of constant thermo-off state indoor units. Subsequently, the excess number determination unit determines whether or not the number of constantly-off thermostat indoor units is greater than a predetermined threshold value. When the excess number determination unit determines that the number of constantly-off thermostat indoor units is greater than a predetermined threshold, the control unit leaves at least one always-off thermostat indoor unit and other always-off thermostat indoor units. Stop. For this reason, in this air conditioning system, energy consumption can be sufficiently reduced without an air conditioning management device or the like performing complicated calculations.

  An air conditioning system according to a second aspect of the present invention is the air conditioning system according to the first aspect of the present invention, further comprising a stop indoor unit presence / absence determining unit. The stopped indoor unit presence / absence determining unit determines whether there is a stopped indoor unit among the plurality of indoor units. Here, the “stop indoor unit” means an indoor unit that is stopped. And when the controller determines that the number of always-off thermostat indoor units is less than a predetermined threshold in the excess number determination unit, and the stop indoor unit presence / absence determination unit determines that there is a stop indoor unit, Operate any one or more of the stopped indoor units.

  In this air conditioning system, the stopped indoor unit presence / absence determining unit determines whether there is a stopped indoor unit among the plurality of indoor units. And when it is determined that the number of always-off thermostat indoor units is less than a predetermined threshold in the excess number determination unit, and the stop indoor unit presence determination unit determines that there is a stop indoor unit, the control unit Operate any one or more of the stopped indoor units. For this reason, in this air conditioning system, when the air conditioning load increases from momentarily low to momentarily (that is, the minimum number of indoor units are in the thermo-off state and all the remaining indoor units are stopped). Even when all the indoor units in the thermo-off state from the existing state are in the thermo-on state), the number of indoor units in the thermo-off state can always be kept constant.

  An air conditioning system according to a third aspect includes a plurality of indoor units, a first table storage unit, a first information receiving unit, an information deriving unit, and a control unit. The “indoor unit” referred to here may be an indoor unit of the same system as a multi-type indoor unit, an indoor unit of a pair type air conditioner, or a floor-standing type air conditioner (compression unit). A built-in air conditioner). The first table storage unit stores an operation number management table. In the operating unit management table, the operating unit information or the stopped unit information of the indoor units is associated with at least one kind of information of outside air temperature information, outside air humidity information, and weather information. “Meteorological information” here refers to, for example, the weather and forecast weather at that time, such as the sky (clear, rainy, cloudy, snow, typhoon, etc.), rainfall, snowfall, and wind strength. It is information such as. The first information receiving unit receives at least one kind of information of outside air temperature information, outside air humidity information, and weather information. The information deriving unit compares the operating number management table with at least one of the outside temperature information, the outside humidity information, and the weather information received by the first information receiving unit to derive the operating number information or the stopped number information. . The control unit controls the operation / stop of the indoor unit using the operation number information or the stop number information derived in the information deriving unit.

  In this air conditioning system, the information deriving unit collates at least one kind of information of the outside air temperature information, the outside air humidity information, and the weather information received by the first information receiving unit with the operating number management table, or the operating number information or Derived stop number information. For this reason, in this air conditioning system, energy consumption can be sufficiently reduced without an air conditioning management device or the like performing complicated calculations.

  An air conditioning system according to a fourth aspect of the present invention is the air conditioning system according to the third aspect of the present invention, further comprising a constant thermo-on state determination unit, a constant thermo-on state number counting unit, a second information receiving unit, and a table creation unit. The constantly thermo-on state determination unit determines whether or not each of the plurality of indoor units is always in the thermo-on state within the second period. The constant thermo-on state number counting unit counts the number of indoor units determined by the constant thermo-on state determination unit to be always in the thermo-on state within the second period. The second information receiving unit receives at least one type of information of outside air temperature information, outside air humidity information, and weather information in the second period. The table creation unit counts at least one kind of information of the outside air temperature information, the outside air humidity information, and the weather information within the second period received by the second information receiving unit, and is always counted by the thermo-on state number counting unit. An operation number management table is created in association with.

  In this air conditioning system, first, the constantly thermo-on state determining unit determines whether or not each of the plurality of indoor units is always in the thermo-on state within the second period. Next, the constant thermo-on state number counting unit counts the number of indoor units determined by the constant thermo-on state determination unit to be always in the thermo-on state within the second period. In addition, the second information receiving unit receives at least one kind of information of the outside air temperature information, the outside air humidity information, and the weather information in the second period. Then, the table creation unit always counts at least one kind of information of the outside air temperature information, the outside air humidity information, and the weather information within the second period received by the second information receiving unit by the thermo-on state number counting unit. An operation number management table is created in association with the count information. For this reason, in this air conditioning system, the operating number management table can be in an appropriate state according to the installation environment. Therefore, in this air conditioning system, it is possible to sufficiently reduce energy consumption while appropriately operating the indoor unit.

  An air conditioning system according to a fifth aspect of the present invention is the air conditioning system according to any of the first to fourth aspects of the present invention, further comprising a second table storage unit. The second table storage unit stores a priority management table. In the priority order management table, priority order information is associated with indoor unit specifying information. The “indoor unit specifying information” here is information for specifying each of a plurality of indoor units. The control unit controls the operation / stop of the indoor unit using the priority order management table. Note that the “indoor unit” here includes a constantly thermo-off state indoor unit, a stopped indoor unit, and the like.

  In this air conditioning system, the control unit controls the operation / stop of the indoor unit using the priority order management table. For this reason, in this air conditioning system, the operation / stop of the indoor unit can be selectively controlled.

  An air conditioning system according to a sixth aspect of the present invention is the air conditioning system according to the fifth aspect of the present invention, further comprising a thermo-off state time measuring unit and a priority management table creating unit. The thermo-off state time measuring unit measures the thermo-off state time for each of the plurality of indoor units. Note that the “thermo-off state time” here is the time for the thermo-off state. The priority management table creation unit creates a priority management table using the thermo-off state time.

  In this air conditioning system, the thermo-off state time measuring unit measures the thermo-off state time for each of the plurality of indoor units. Then, the priority management table creation unit creates a priority management table using the thermo-off state time. For this reason, in this air conditioning system, it is possible to preferentially stop the indoor units that are likely to be in the thermo-off state.

  An air conditioning system according to a seventh aspect of the present invention is the air conditioning system according to the fifth aspect of the present invention, further comprising a state switching frequency count unit and a priority management table creation unit. The state switching number counting unit counts the number of times of switching between the thermo-off state and the thermo-on state in the third period for each of the plurality of indoor units. The priority management table creation unit creates a priority management table using the number of times of switching.

  In this air conditioning system, the state switching number counting unit counts the number of times of switching between the thermo-off state and the thermo-on state in the third period for each of the plurality of indoor units. Then, the priority order management table creation unit creates a priority order management table using the number of times of switching. For this reason, in this air conditioning system, it is possible to preferentially stop the indoor units that are likely to be in the thermo-off state.

  An air conditioning system according to an eighth aspect of the present invention is the air conditioning system according to the fifth aspect of the present invention, further comprising a priority management table creation unit. The priority order management table creation unit creates a priority order management table using set temperature information of each of the plurality of indoor units or parameter information derived from the set temperatures. The “parameter information derived from the set temperature” here is, for example, an average value of the set temperature during operation in the past predetermined period.

  In this air conditioning system, the priority order management table creating unit creates a priority order management table by using set temperature information of each of the plurality of indoor units or parameter information derived from the set temperatures. For this reason, in this air conditioning system, for example, indoor units with a high set temperature during cooling can be preferentially stopped, and indoor units with a low set temperature during heating can be preferentially stopped. Therefore, in this air conditioning system, it is possible to sufficiently reduce energy consumption while maintaining the air conditioning environment as comfortably as possible.

  An air conditioning system according to a ninth aspect of the present invention is the air conditioning system according to the fifth aspect of the present invention, further comprising an information input unit and a priority management table creation unit. The priority order management table creation unit creates a priority order management table using the information input in the information input unit. Here, “information input in the information input unit” is, for example, information representing a bodily sensation (such as “hot” or “cold”).

  In this air conditioning system, the priority order management table creation unit creates a priority order management table using information input in the information input unit. For this reason, in this air conditioning system, a user's intention can be reflected about the priority order of the operation / stop of an indoor unit.

  An air conditioning system according to a tenth aspect of the present invention is the air conditioning system according to the fifth aspect of the present invention, further comprising a moving body detection unit and a priority management table creation unit. Here, the “moving body detection unit” is, for example, a human sensor, an infrared sensor, a monitoring camera, or the like. The priority order management table creation unit creates a priority order management table using the detection result of the moving body detection unit.

  In this air conditioning system, the priority management table creation unit creates a priority management table using the detection result of the moving body detection unit. For this reason, in this air conditioning system, an indoor unit with a low air conditioning load (a small number of air conditioning subjects) can be preferentially stopped. Therefore, in this air conditioning system, it is possible to sufficiently reduce energy consumption while maintaining the air conditioning environment as comfortably as possible.

  An air conditioning system according to an eleventh aspect of the present invention is the air conditioning system according to the fifth aspect of the present invention, further comprising a moving body management unit and a priority management table creation unit. The “mobile body management unit” is, for example, an entrance / exit management system. The priority order management table creating unit creates a priority order management table using the management information of the mobile unit management unit.

  In this air conditioning system, the priority order management table creation unit creates the priority order management table using the management information of the moving body management unit. For this reason, in this air conditioning system, an indoor unit with a low air conditioning load (a small number of air conditioning subjects) can be preferentially stopped. Therefore, in this air conditioning system, it is possible to sufficiently reduce energy consumption while maintaining the air conditioning environment as comfortably as possible.

  An air conditioning management device according to a twelfth aspect of the present invention includes a constant thermo-off state determination unit, a constant thermo-off state indoor unit count unit, an excess number determination unit, and a control unit. The constantly thermo-off state determination unit determines whether or not each of the plurality of indoor units is always in the thermo-off state within the eleventh period. The constantly thermo-off state indoor unit count unit counts the number of constantly thermo-off state indoor units. The “always thermo-off state indoor unit” referred to here is an indoor unit that is determined to be always in the thermo-off state within the eleventh period by the constant thermo-off state determination unit. The excess number determination unit determines whether or not the number of indoor units that are always in a thermo-off state is greater than a predetermined threshold value. When it is determined by the excess number determination unit that the number of constantly-off thermostat indoor units is greater than a predetermined threshold, the control unit stops at least one always-off thermostat indoor unit and stops other always-off thermostat indoor units. Let Note that the number of indoor units that are always in the thermo-off state (that is, the indoor units that are always in the thermo-off state that is not stopped) may be any number, for example, the same number as the threshold or one more than the threshold The number may be one less than the threshold value.

  In this air conditioning management device, the constantly thermo-off state determination unit determines whether or not each of the plurality of indoor units has always been in the thermo-off state within the eleventh period. Next, a constant thermo-off state indoor unit count unit counts the number of constant thermo-off state indoor units. Subsequently, the excess number determination unit determines whether or not the number of constantly-off thermostat indoor units is greater than a predetermined threshold value. When the control unit determines that the number of constantly thermo-off state indoor units is greater than a predetermined threshold value in the excess number determination unit, at least one always-off thermo-off state indoor unit is left, and other always-off thermo-off state indoor units Stop. For this reason, in this air-conditioning management apparatus, the energy consumption of an air conditioning system can fully be reduced with a low calculation load.

  An air conditioning management device according to a thirteenth aspect includes a table storage unit, an information receiving unit, an information deriving unit, and a control unit. The table storage unit stores an operation number management table. In the operating number management table, the operating unit information of the indoor units is associated with at least one type of information of outside air temperature information, outside air humidity information, and weather information. The information receiving unit receives at least one type of information of outside air temperature information, outside air humidity information, and weather information. The information deriving unit collates at least one kind of information of the outside air temperature information, the outside air humidity information, and the weather information received by the information receiving unit with the operating number management table to derive the operating number information. The control unit controls the operation / stop of the indoor unit based on the operating unit number information derived by the information deriving unit.

  In this air conditioning management device, the information deriving unit derives the operating number information by collating at least one kind of information of the outside air temperature information, the outside air humidity information, and the weather information received by the information receiving unit with the operating number management table. . For this reason, in this air-conditioning management apparatus, the energy consumption of an air conditioning system can fully be reduced with a low calculation load.

  In the air conditioning system according to the first aspect of the present invention, the energy consumption can be sufficiently reduced without the air conditioning management device or the like performing complicated calculations.

  In the air conditioning system according to the second aspect of the present invention, when the air conditioning load increases from momentarily low to momentarily (that is, a minimum number of indoor units are in a thermo-off state and all the remaining indoor units are stopped). Even when all the indoor units in the thermo-off state are in the thermo-on state from the state where the thermo-off state is present, the number of indoor units in the thermo-off state can always be kept constant.

  In the air conditioning system according to the third aspect of the present invention, the energy consumption can be sufficiently reduced without the air conditioning management device or the like performing complicated calculations.

  In the air conditioning system according to the fourth aspect of the present invention, the operating number management table can be in an appropriate state according to the installation environment. Therefore, in this air conditioning system, it is possible to sufficiently reduce energy consumption while appropriately operating the indoor unit.

  In the air conditioning system according to the fifth aspect of the invention, the operation / stop of the indoor unit can be selectively controlled.

  In the air conditioning system according to the sixth aspect of the present invention, it is possible to preferentially stop the indoor units that are likely to be in the thermo-off state.

  In the air conditioning system according to the seventh aspect of the present invention, it is possible to preferentially stop the indoor units that are likely to be in the thermo-off state.

  In the air conditioning system according to the eighth aspect of the invention, for example, an indoor unit with a high set temperature during cooling can be preferentially stopped, and an indoor unit with a low set temperature during heating can be preferentially stopped. Therefore, in this air conditioning system, it is possible to sufficiently reduce energy consumption while maintaining the air conditioning environment as comfortably as possible.

  In the air conditioning system according to the ninth aspect of the present invention, the user's intention can be reflected in the priority order of operation / stop of the indoor units.

  In the air conditioning system according to the tenth aspect of the invention, an indoor unit with a low air conditioning load (small number of air conditioning subjects) can be preferentially stopped. Therefore, in this air conditioning system, it is possible to sufficiently reduce energy consumption while maintaining the air conditioning environment as comfortably as possible.

  In the air conditioning system according to the eleventh aspect of the invention, it is possible to preferentially stop indoor units with a low air conditioning load (small number of air conditioning subjects). Therefore, in this air conditioning system, it is possible to sufficiently reduce energy consumption while maintaining the air conditioning environment as comfortably as possible.

  In the air conditioning management device according to the twelfth aspect of the present invention, the energy consumption of the air conditioning system can be sufficiently reduced with a low calculation load.

  In the air conditioning management device according to the thirteenth aspect of the present invention, the energy consumption of the air conditioning system can be sufficiently reduced with a low calculation load.

<Schematic configuration of air conditioning system>
As shown in FIG. 1, an air conditioning system 1 according to the present invention mainly includes a plurality of multi-type air conditioning apparatuses 60A, 60B,..., An air conditioning management apparatus 20, an outside air temperature sensor 10, and an outside air humidity sensor. 15 and an air conditioning network 50. In this air conditioning system 1, the multi-type air conditioning apparatuses 60A, 60B,... Are connected to the air conditioning management apparatus 20 via the air conditioning network 50.

<Multi-type air conditioner>
(1) Overall Schematic Configuration In the air conditioning system 1 according to the present invention, there are a plurality of multi-type air conditioning apparatuses 60A, 60B,... As shown in FIG. Only the multi-type air conditioner 60A will be described. The second-system multi-type air conditioner 60B shown in FIG. 1 has the same configuration as the first-system multi-type air conditioner 60A.

  As shown in FIG. 1 and FIG. 2, the first system multi-type air conditioner 60 </ b> A mainly includes an outdoor unit 61, a plurality of indoor units 62, and a plurality of wired remote controllers 35. The outdoor unit 61 and the plurality of indoor units 62 are connected to each other via a connecting pipe 65 as shown in FIG. The outdoor unit 61, the indoor unit 62, and the wired remote controller 35 are connected to each other via the air conditioning network 50. In the present embodiment, three indoor units 62 are arranged in the eleventh chamber RM11. These three indoor units 62 are controlled by the air-conditioning management apparatus 20 and the wired remote controller 35 disposed in the eleventh room RM11. In the twelfth room RM12, four indoor units 62 (two of which are not shown) are arranged. These four indoor units 62 are controlled by the air conditioning management device 20 and the wired remote controller 35 disposed in the twelfth room.

(2) Configuration of Outdoor Unit As shown in FIG. 2, the outdoor unit 61 mainly includes a compressor 611, a four-way switching valve 612, an outdoor heat exchanger 613, an outdoor fan 614, and an outdoor control device 615. Is done.

  As shown in FIG. 3, the outdoor control device 615 mainly includes a first control unit 615a, a first calculation unit 615b, a first storage unit 615c, and a first communication unit 615d. The compressor 611, the four-way switching valve 612, and the outdoor fan 614 are connected via the 616. The first control unit 615a is configured to control the compressor 611 based on control information obtained from the first calculation unit 615b, the first storage unit 615c, and the first communication unit 615d according to a control program stored in the first storage unit 615c. Operation / stop control, operation frequency control, switching control of the four-way switching valve 612, operation / stop control of the outdoor fan 614, rotation speed control, and the like are performed. The first computation unit 615b derives prescribed information by computing various types of information obtained from the first storage unit 615c and the first communication unit 615d in accordance with a computation program stored in the first storage unit 615c. Is transmitted to the first control unit 615a, the first storage unit 615c, and the first communication unit 615d. The first storage unit 615c includes parameter information necessary for controlling the compressor 111, the four-way switching valve 612, the outdoor fan 614, and the like, and parameters necessary for communication with the indoor unit 62, the air conditioning management device 20, and the like. Information such as address information, model information, and version information is stored. The first communication unit 615d communicates with the indoor unit 62, the air conditioning management device 20, and the like according to a communication program stored in the first storage unit 615c.

(3) Configuration of Indoor Unit As shown in FIG. 2, the indoor unit 62 mainly includes an electric expansion valve 621, an indoor fan 622, an indoor heat exchanger 623, and an indoor control device 624.

  As shown in FIG. 4, the indoor control device 624 mainly includes a second control unit 624a, a second calculation unit 624b, a second storage unit 624c, and a second communication unit 624d. It is connected to the electric expansion valve 621 and the indoor fan 622 through 626. The second control unit 624a is based on control information obtained from the second calculation unit 624b, the second storage unit 624c, and the second communication unit 624d according to the control program stored in the second storage unit 624c. The opening degree adjustment control, the operation / stop control of the indoor fan 622, the rotation speed control, and the like are performed. The second calculation unit 624b calculates various information obtained from the second storage unit 624c and the second communication unit 624d in accordance with a calculation program stored in the second storage unit 624c, and derives prescribed information. Is transmitted to the second control unit 624a, the second storage unit 624c, and the second communication unit 624d. The second storage unit 624c stores parameter information necessary for controlling the electric expansion valve 621 and the indoor fan 622, parameter information necessary for communication with the outdoor unit 61, the air conditioning management device 20, and the like, for example, address information. In addition, model information, version information, and the like are stored. The 2nd communication part 624d communicates with the outdoor unit 61, the air-conditioning management apparatus 20, etc. according to the communication program memorize | stored in the 2nd memory | storage part 624c.

(4) Configuration and Operation of Refrigerant Circuit The refrigerant circuit 67 is formed by connecting the outdoor unit 61 and the indoor unit 62 by a connecting pipe 65 as shown in FIG. In the present embodiment, the refrigerant circuit 67 is filled with a fluorocarbon refrigerant. In the refrigerant circuit 67, the compressor 611 has a discharge side connected to the first port of the four-way switching valve 612 and a suction side connected to the third port of the four-way switching valve 612. The outdoor heat exchanger 613 has a gas side connected to the second port of the four-way switching valve 612 and a liquid side connected to the electric expansion valves 621 and 631 of the indoor units 62. The indoor heat exchangers 623 and 633 have the liquid side connected to the electric expansion valves 621 and 631 and the gas side connected to the fourth port of the four-way switching valve 612.

  Hereinafter, the operation of the refrigerant circuit 67 will be described with reference to FIG. In the refrigerant circuit 67, a cooling operation and a heating operation can be performed.

(Cooling operation)
During the cooling operation, the four-way switching valve 612 is in the state indicated by the solid line in FIG. 2, that is, the discharge side of the compressor 611 is connected to the gas side of the outdoor heat exchanger 613, and the suction side of the compressor 611 is the indoor heat. It will be in the state connected to the gas side of the exchanger 623.

  When the compressor 611 is started in the state of the refrigerant circuit 67, the low-temperature and low-pressure gas refrigerant is sucked into the compressor 611 and compressed into a high-temperature and high-pressure gas refrigerant, and then passes through the four-way switching valve 612. Then, it is sent to the outdoor heat exchanger 613 and condensed in the outdoor heat exchanger 613 to become a high-temperature and high-pressure liquid refrigerant.

  The high-temperature and high-pressure liquid refrigerant is sent to the electric expansion valve 621 of each indoor unit 62. The high-temperature and high-pressure liquid refrigerant sent to the electric expansion valve 621 is reduced in pressure to become a low-temperature and low-pressure liquid refrigerant, and then supplied to the indoor heat exchanger 623 of each indoor unit 62 to cool and evaporate the indoor air. It becomes a low-temperature and low-pressure gas refrigerant.

  Then, the low-temperature and low-pressure gas refrigerant is sucked into the compressor 611 again via the four-way switching valve 612. In this way, the cooling operation is performed.

  When the electric expansion valve 621 is fully closed in the indoor unit 62, the refrigerant is not supplied to the indoor heat exchanger 623 and does not exchange heat with room air. At this time, if the indoor unit 62 is in the thermo-off state, the indoor fan 622 remains operating, and if the indoor unit 62 is in the complete stop state, the indoor fan 622 is stopped.

(Heating operation)
During the heating operation, the four-way switching valve 612 is in the state indicated by the broken line in FIG. 2, that is, the discharge side of the compressor 611 is connected to the gas side of the indoor heat exchanger 623 of each indoor unit 62, and the compressor 611 The suction side is connected to the gas side of the outdoor heat exchanger 613.

  When the compressor 611 is started in the state of the refrigerant circuit 67, the low-temperature and low-pressure gas refrigerant is sucked into the compressor 611 and compressed into a high-temperature and high-pressure gas refrigerant, and then passes through the four-way switching valve 613. To the indoor heat exchanger 623 of each indoor unit 62.

  The high-temperature and high-pressure gas refrigerant heats indoor air in the indoor heat exchanger 623 and is condensed to become a high-temperature and high-pressure liquid refrigerant. The high-temperature and high-pressure liquid refrigerant is sent to the electric expansion valve 621 of each indoor unit 62. The high-temperature and high-pressure liquid refrigerant sent to the electric expansion valve 621 is reduced in pressure to become a low-temperature and low-pressure liquid refrigerant, and then sent to the outdoor heat exchanger 613 and evaporated in the outdoor heat exchanger 613 to be low-temperature and low-pressure gas. Becomes a refrigerant. The low-temperature and low-pressure gas refrigerant is again sucked into the compressor 611 via the four-way switching valve 612. In this way, the heating operation is performed.

  When the electric expansion valve 621 is in the fully closed state in the indoor unit 62, the high-temperature and high-pressure gas refrigerant stops in the indoor heat exchanger 623 in a state where a part of the high-temperature and high-pressure gas refrigerant becomes high-temperature and high-pressure liquid refrigerant. At this time, if the indoor unit 62 is in the thermo-off state, the indoor fan 622 remains in operation, and if the indoor unit 62 is in the complete stop state, the indoor fan 622b is stopped.

  That is, the indoor unit 62 takes three states of a normal operation state, a thermo-off state, and a complete stop state during both the cooling operation and the heating operation. That is, in the normal operation state, the electric expansion valve 621 is opened, and the indoor fan 622 remains in operation. In the thermo-off state, the electric expansion valve 621 is fully closed, and the indoor fan 622 remains in operation. In the complete stop state, the electric expansion valve 621 is fully closed and the indoor fan 622 is stopped.

<Air conditioning management device>
(1) Overall Schematic Configuration As shown in FIG. 5, the air conditioning management device 20 mainly includes a third control unit 21, a third calculation unit 22, a third storage unit 23, a first input unit 24, and a first control unit. 3 communication unit 25 is connected to the outside temperature sensor 10 and the outside humidity sensor 15 through the sensor communication line 201. The third control unit 21 is based on the control information obtained from the third calculation unit 22, the third storage unit 24, and the third communication unit 25 according to the control program stored in the third storage unit 23. The multi-type air conditioners 60A, 60B,. The third calculation unit 22 calculates various information obtained from the third storage unit 23 and the third communication unit 25 in accordance with a calculation program stored in the third storage unit 23 to derive prescribed information, and the information Is transmitted to the third control unit 21, the third storage unit 23, and the third communication unit 25. The third storage unit 23 communicates with parameter information and tables necessary for controlling the multi-type air conditioners 60A, 60B,... And the multi-type air conditioners 60A, 60B,. Necessary parameter information, for example, address information, model information, version information, and the like are stored. In the third input unit, monitoring parameter information, control parameter information, and the like are input. The third communication unit 25 communicates with the multi-type air conditioners 60A, 60B,... According to a communication program stored in the third storage unit 23. In addition, the third communication unit 25 receives outside air temperature information from the outside air temperature sensor 10 every predetermined time. Further, the third communication unit 25 receives the outside air humidity information from the outside air humidity sensor 15 every predetermined time.

(2) Control of the number of indoor units operating in the multi-type air conditioner (Contents of control at startup)
Here, the operation number control at the time of starting the indoor unit of the multi-type air conditioner according to the present invention will be described with reference to FIGS.

  The third storage unit 23 stores an operating number management table Tm as shown in FIG. 6 and a priority order management table Tp as shown in FIG. In the operating number management table Tm, the operating number information of the indoor units 62 installed in each room RM11, RM12, RM21, RM22,... Is associated with the outside air temperature range information. In the priority management table Tp, the address information of the indoor units 62 installed in each room RM11, RM12, RM21, RM22,... Is associated with the driving priority information.

  The air conditioning management device 20 controls the number of operating indoor units 62 in each room RM11, RM12, RM21, RM22,... According to the flowcharts shown in FIGS. This control is executed only at startup.

  8 and 9, in step S1, the third communication unit 25 receives the outside air temperature information from the outside air temperature sensor 10 and receives the outside air humidity information from the outside air humidity sensor 15, and the outside air temperature information and the outside air humidity information are received. It transmits to the 3rd calculating part 22. In step S2, the 3rd calculating part 22 refers to the number-of-operations management table Tm of each room RM11, RM12, RM21, RM22, ... associated with the outside air temperature range information to which the outside air temperature information belongs. Extract the number of units in operation. In step S3, the 3rd calculating part 22 determines whether the numerical value of external air humidity information is 50 or more (only at the time of cooling). As a result of the determination by the third calculation unit 22 in step S3, when the numerical value of the outside air humidity information is 50 or more, the process proceeds to step S4. As a result of the determination by the third calculation unit 22 in step S3, when the numerical value of the outside air humidity information is not 50 or more, the process proceeds to step S5. In step S4, the 3rd calculating part 22 adds 1 to the numerical value of the operating number information extracted by step S2. In step S5, the 3rd calculating part 22 extracts indoor unit address information by the number of the numerical value of the operating unit information extracted by step S2 in order with a high priority with reference to the priority management table Tp. At this time, step S5 is performed for each room RM11, RM12, RM21, RM22,. In step S6, the 3rd communication part 25 transmits operation / stop information provision command information with respect to the indoor unit 62 corresponding to the indoor unit address information extracted in step S5. In step S <b> 7, the third calculation unit 22 determines for each indoor unit 62 whether the information provided from each indoor unit 62 via the third communication unit 25 is stop information. If the information provided from the indoor unit 62 via the third communication unit 25 is stop information as a result of the determination by the third calculation unit 22 in step S7, the process proceeds to step S8. If the information provided from the indoor unit 62 via the third communication unit 25 is not stop information as a result of the determination by the third calculation unit 22 in step S7, the process ends. In step S8, the third communication unit 25 transmits the operation start command information to the indoor unit 62 that has transmitted the stop information. In step S9, the third communication unit 25 transmits operation / stop information provision command information to the indoor unit 62 corresponding to the indoor unit address information not extracted in step S5. In step S <b> 10, the third calculation unit 22 determines for each indoor unit 62 whether the information provided from the indoor unit 62 via the third communication unit 25 is stop information. If the information provided from the indoor unit 62 via the third communication unit 25 is stop information as a result of the determination by the third calculation unit 22 in step S10, the process ends. If the information provided from the indoor unit 62 via the third communication unit 25 is not stop information as a result of the determination by the third calculation unit 22 in step S10, the process proceeds to step S11. In step S11, the 3rd communication part 25 transmits stop command information with respect to the indoor unit 62 which has transmitted the information which is not stop information.

  In addition, when the numerical value of the outside air humidity information is 50 or more as a result of the determination by the third calculation unit 22 in step S3, control is performed so that all the indoor units 62 that are finally in the operating state are in the thermo-on state for a predetermined period. Is done. In addition, if there is an indoor unit 62 that is stopped in a certain room RM11, RM12, RM21, RM22,... And all other indoor units 62 are in a thermo-on state 5 minutes after the end of the process, the process is stopped. Any one of the indoor units 62 is operated. Further, when there is an indoor unit 62 that is in a thermo-off state in a certain room RM11, RM12, RM21, RM22,... 5 minutes after the end of the process, one of the indoor units 62 that is in a thermo-off state. The stand is brought to a stop state (hereinafter referred to as correction control).

(Periodic update of the operation number management table)
Here, the periodic update of the operation number management table Tm will be described with reference to FIGS.

The indoor unit 62 transmits thermo-on / therm-off information together with the indoor unit address information to the air conditioning management device 20 every minute, and the thermo-on / therm-off information is stored in the log table Tl _i (FIG. 12) corresponding to the indoor unit address information. Automatically) along with time information. In addition, the outside air temperature information for updating the operating number management table is transmitted from the outside air temperature sensor 10 to the air conditioning management device 20 when 30 minutes have elapsed since the start of the operation number control. In the air conditioning management device 20, when the third communication unit 25 receives the outside air temperature information for updating the operation number management table, the information processing shown in FIGS. 10 and 11 is executed, and the operation number management table Tm is generated. Updated. Note that the thermo-on / therm-off information used in the following information processing is thermo-on / thermo-off information collected during one hour from the previous update.

10 and 11, in step S21, the third calculation unit 22 specifies a temperature range to which the outside air temperature information belongs among the temperature ranges listed in the operating number management table Tm. Hereinafter, the processing in steps S22 to 30 loops for all the rooms RM11, RM12, RM21, RM22,. In step S22, the 3rd calculating part 22 removes the processed room number from the object of a process. In step S23, the 3rd calculating part 22 extracts the indoor unit address information corresponding to the minimum room number with reference to the room number table Tr (refer FIG. 13). In step S24, the third calculation unit 22 extracts the log table Tl _i corresponding to the indoor unit address information extracted in step S23. In step S25, the third calculation unit 22 substitutes “0” for the variable n. Hereinafter, the processing in steps S26 to S29 loops until the processing is completed for all the indoor units 62 corresponding to the selected rooms RM11, RM12, RM21, RM22,. In step S26, the 3rd calculating part 22 removes processed indoor unit address information from the object of a process. In step S27, the third calculation unit 22, the last three digits numbers to extract thermo / thermo-off information from the log table Tl _i corresponding to the minimum of the indoor unit address information. In step S28, the 3rd calculating part 22 determines whether all the thermo on / thermo off information extracted in step S27 is thermo on information. As a result of the determination by the third calculation unit 22 in step S28, when all the thermo-on / thermo-off information is thermo-on information, the process proceeds to step S29. If the result of determination by the third calculation unit 22 in step S28 is that all the thermo-on / thermo-off information is not thermo-on information, the process returns to step S26 or proceeds to step S30. Note that the processing returns to step S26 when the processing has not been completed for all the indoor units 62 corresponding to the selected rooms RM11, RM12, RM21, RM22,..., And the processing moves to step S30. Is the case where the processing is completed for all the indoor units 62 corresponding to the selected rooms RM11, RM12, RM21, RM22,. In step S29, the third calculation unit 22 performs a calculation process of adding 1 to the variable n. In step S30, the 3rd calculating part 22 substitutes the value of n to the corresponding location of the operating number management table Tm. When step S30 ends, the process returns to step S22 or ends. The process returns to step S22 when the process is not completed for all the rooms RM11, RM12, RM21, RM22,..., And the process ends when all the rooms RM11, RM12, RM21, RM22, This is a case where the processing has been completed.

(Regular update of priority management table)
Here, the periodic update of the priority order management table Tp will be described with reference to FIG.

  The indoor unit address information and the thermo-off integrated time information are transmitted from each indoor unit 62 to the air conditioning management device 20 every 168 hours (every week). The thermo-off integrated time information is stored in the thermo-off integrated time information table Tt (FIG. 15). (Refer to) and stored in association with the indoor unit address information. The thermo-off integration time information is measured by a thermo-off integration unit (not shown) of each indoor unit 62. And in this air-conditioning management apparatus 20, when thermo-off integration time information is received in the 3rd communication part 25, the information processing shown in FIG. 14 will be performed, and the priority management table Tp will be updated.

  14, the process of steps S31 to 34 loops for all rooms RM11, RM12, RM21, RM22,. In step S31, the 3rd calculating part 22 removes the processed room number from the object of a process. In step S32, the 3rd calculating part 22 extracts the indoor unit address information corresponding to the minimum room number with reference to the room number table Tr (refer FIG. 13). In step S33, the 3rd calculating part 22 extracts the thermo-off integrated time information corresponding to the indoor unit address information extracted in step S32 with reference to the thermo-off integrated time information table Tt. In step S34, the third calculation unit 22 adds the indoor unit address information corresponding to the thermo-off integrated time information to the indoor unit address information column with high priority in the priority management table Tp in ascending order of the numerical value of the thermo-off integrated time information. Overwrite and register. When step S34 ends, the process returns to step S31 or ends. The process returns to step S31 when the process is not completed for all the rooms RM11, RM12, RM21, RM22,..., And the process is completed for all the rooms RM11, RM12, RM21, RM22. ,... Is completed.

(Contents of control other than at startup (during operation))
Here, with reference to FIGS. 16 to 19, control of the number of operating units other than when the indoor unit of the multi-type air conditioner according to the present invention is activated (during operation) will be described. In addition, this operation number control is started after 30 minutes have elapsed from the time of startup, and thereafter is executed every 30 minutes. The thermo-on / therm-off information used in the following information processing is the thermo-on / therm-off information collected during 10 minutes from the time of activation or after the previous operation number control to 20 minutes after the previous operation number control. .

16-18, the process of step S41-49 loops until the process is completed about all the rooms RM11, RM12, RM21, RM22, .... In step S41, the 3rd calculating part 22 removes the processed room number from the object of a process. In step S42, the 3rd calculating part 22 extracts the indoor unit address information corresponding to the minimum room number with reference to the room number table Tr (refer FIG. 13). In step S43, the third calculation unit 22 extracts the log table Tl _i (see FIG. 12) corresponding to the indoor unit address information extracted in step S42. In step S44, the third calculation unit 22 substitutes “0” for the variable s. Hereinafter, the processing of steps S45 to 49 loops until the processing is completed for all the indoor units 62 corresponding to the selected rooms RM11, RM12, RM21, RM22,. In step S45, the 3rd calculating part 22 removes processed indoor unit address information from the object of a process. In step S46, the third calculation unit 22, the last three digits numbers to extract thermo / thermo-off information from the log table Tl _i corresponding to the minimum of the indoor unit address information. In step S47, the third calculation unit 22 determines whether all the thermo-on / thermo-off information extracted in step S46 is thermo-off information. If the result of determination by the third calculation unit 22 in step S47 is that all the thermo-on / thermo-off information is thermo-off information, the process proceeds to step S48. As a result of the determination by the third calculation unit 22 in step S47, when all the thermo-on / thermo-off information is not the thermo-off information, the process proceeds to step S49. In step S48, the third calculation unit 22 performs a calculation process of adding 1 to the variable s. In step S49, the 3rd calculating part 22 substitutes the value of the variable s for the operating number management table Tm2 (refer FIG. 19). When the process of step S49 ends, the process returns to step S41, returns to step S45, or moves to step S50. The process returns to step S41 when the process has not been completed for all the indoor units 62 corresponding to the selected rooms RM11, RM12, RM21, RM22,..., And the process returns to step S45. The processing is completed for all the indoor units 62 corresponding to the selected rooms RM11, RM12, RM21, RM22,... And the processing is completed for all the rooms RM11, RM12, RM21, RM22,. In this case, the process proceeds to step S50. The process is completed for all the indoor units 62 corresponding to the selected rooms RM11, RM12, RM21, RM22,. This is a case where the processes for RM12, RM21, RM22,. In step S50, the third calculation unit 22 refers to the operating number management table Tm2, and determines whether or not s ≧ 2 holds for each of the rooms RM11, RM12, RM21, RM22,. As a result of the determination by the third calculation unit 22 in step S50, if s ≧ 2 holds, the process proceeds to step S51. If s ≧ 2 is not satisfied as a result of the determination by the third calculation unit 22 in step S50, the process proceeds to step S52. In step S51, the 3rd communication part 25 stops with respect to the (s-1) indoor units 62 in order from the indoor unit 62 with the lowest driving priority (refer FIG. 7) according to the instruction | indication of the 3rd control part 21. Send command information. In step S52, the 3rd calculating part 22 determines whether s = 1 is materialized for every room RM11, RM12, RM21, RM22, ... with reference to the operation number management table Tm2. If s = 1 holds as a result of the determination by the third calculation unit 22 in step S52, the process ends. If s = 1 is not satisfied as a result of determination by the third calculation unit 22 in step S52 (that is, S = 0 is satisfied), the process proceeds to step S53. In step S <b> 53, the third communication unit 25 transmits the operation / stop information provision command information to the indoor unit having the highest operation priority in accordance with the instruction from the third control unit 21. In step S54, the 3rd calculating part 22 determines whether all the driving | operation / stop information transmitted from the indoor unit 62 is driving information. When the operation / stop information transmitted from the indoor unit 62 is all the operation information as a result of the determination by the third calculation unit 22 in step S54 (in this case, all the indoor units 62 are in the thermo-on state), The process ends. When the operation / stop information transmitted from the indoor unit 62 is not all the operation information as a result of the determination by the third calculation unit 22 in step S54 (that is, when stop information is included. As an example in this case) It is conceivable that the indoor unit with the highest operation priority is in the thermo-on state, and all other indoor units are in the stopped state, that is, the air conditioning load increases from momentarily low to momentarily. The process proceeds to step S55. In step S55, the 3rd communication part 25 transmits driving command information with respect to the indoor unit with the highest driving | operation priority among the stopped indoor units according to the instruction | indication of the 3rd control part 21. FIG.

<Characteristics of the air conditioning system according to the present invention>
(1)
In the air conditioning system 1 according to the present invention, at the time of start-up, the air conditioning management device 20 uses the operation number management table Tm and the priority order management table Tp, and the rooms M11, RM12, RM21, RM22,. The number of operating units 62 can be set to an operating number suitable for the outside air temperature, that is, the air conditioning load. Further, in this air conditioning system 1, when there are a plurality of thermo-off indoor units at times other than startup (during operation), the air-conditioning management device 20 sets the thermo-off indoor unit 62 with the highest operation priority. Except, the indoor unit in the thermo-off state is stopped. For this reason, in this air conditioning system 1, the air-conditioning management device 20 can sufficiently reduce energy consumption without performing complicated calculations. Moreover, in this air conditioning system 1, in principle, there is at least one indoor unit in a thermo-off state. For this reason, in this air conditioning system 1, when the air conditioning load increases, the indoor unit in the thermo-off state can be immediately brought into the thermo-on state to cope with it.

(2)
In the air conditioning system 1 according to the present invention, in the control of the number of operating indoor units 62, when the outside air humidity is 50% or more, the indoor unit 62 is operated by one more than the specified operating number. And all the indoor units 62 which will be in an operation state finally are controlled so that it may be in a thermo-on state for a predetermined period. For this reason, in this air conditioning system 1, the discomfort by lack of dehumidification capability can be prevented.

(3)
In the air conditioning system 1 according to the present invention, the operation number management table Tm is periodically updated based on the thermo-on / thermo-off information of each indoor unit 62. For this reason, in this air conditioning system 1, the operation number management table Tm can be made into an appropriate state according to the installation environment. Therefore, in the air conditioning system 1, energy consumption can be sufficiently reduced while the indoor unit 62 is appropriately operated.

(4)
In the air conditioning system 1 according to the present invention, the priority order management table Tp is periodically updated based on the thermo-off integrated time information of each indoor unit 62. For this reason, in this air conditioning system 1, the indoor unit 62 that is likely to be in the thermo-off state can be preferentially stopped.

<Modification>
(A)
In the air conditioning system 1 according to the previous embodiment, the air conditioning management device 20 uses the operating number management table Tm and the priority order management table Tp to configure the indoor units 62 of the rooms M11, RM12, RM21, RM22,. Although the number of operating units is the outside air temperature, that is, the number of operating units suitable for the air conditioning load, instead of such a mode, the air conditioning management device 20 uses the operating unit number management table Tm and the priority order management table Tp to each room M11, RM12, RM21, RM22, ..., the number of indoor units 62 operated, outside air humidity and weather information (sky pattern (clear, rain, cloudy, snow, typhoon, etc.), rainfall, snow cover, wind strength, etc. The number of operating units may be suitable for the information). In such a case, it is necessary to replace the temperature range information in the operating number management table Tm with humidity range information or weather information. In such a case, it is necessary to connect the air conditioning management device 20 to an outside air humidity sensor or a weather information center computer instead of the outside air temperature sensor 10.

(B)
In the air conditioning system 1 according to the previous embodiment, in the periodic update process of the operation number management table Tm, the temperature range of the operation number management table Tm is specified by the first received outside air temperature information. Instead, the temperature range of the operating number management table Tm may be specified by the average outside air temperature information. That is, the third communication unit 25 receives the outside air temperature information at the reception of the same timing of the thermo / thermo-off information, registers the outdoor air temperature information to the log table Tl _i with thermo / thermo-off information. Then, when the operating number management table Tm is updated, the values of the outside air temperature information collected during one hour from the previous update are averaged and used for specifying the temperature range of the operating number management table Tm.

(C)
Although not particularly mentioned in the previous embodiment, when the operation number information is not changed in the air conditioning system 1 for a long time (for example, several hours), 1 is subtracted from the numerical value of the operation number information in the operation number management table Tm. You may do it.

(D)
Although not particularly mentioned in the previous embodiment, in the air conditioning system 1, when the operation number information is changed with a considerable frequency in a predetermined period (for example, one day), the numerical value of the operation number information in the operation number management table Tm is set to 1. May be added.

(E)
Although not particularly mentioned in the previous embodiment, the control of the number of indoor units 62 in the air conditioning management device 20 is executed only in a specified time zone (for example, from 18:00 to 8:00 on the next day, only overtime hours). It doesn't matter if you do.

(F)
Although not particularly mentioned in the previous embodiment, when the number of outside air humidity information is 50 or more as a result of the determination of the third arithmetic unit 22 in step S3 during the control of the number of operating indoor units 62, FIG. The swirling airflow control as shown in FIG. In such a case, the indoor units 62 to be operated may be arranged in a lattice pattern. In this way, the air conditioning unevenness of the rooms RM11, RM12, RM21, RM22,... Can be reduced and a feeling of airflow can be given to the human body, so that a comfortable feeling can be provided to the human body. . In such a case, control may be performed so that only a predetermined indoor unit 62 is always in a thermo-on state during cooling. In this way, excessive cooling can be prevented while ensuring dehumidification performance.

(G)
In the air conditioning system 1 according to the previous embodiment, the air conditioning management device 20 uses the operation number management table Tm and the priority order management table Tp at the time of start-up, and each room M11, RM12, RM21, RM22,. The number of operating units 62 is set to the outside air temperature, that is, the number of operating units suitable for the air conditioning load. Instead of such a mode, the air conditioning management device 20 follows the flow of the flowcharts of FIGS. 21 and 22 to each room M11, RM12, RM21. , RM22,..., The number of operating indoor units 62 may be controlled.

The indoor unit 62 transmits thermo-on / therm-off information to the air-conditioning management device 20 every 5 minutes together with the indoor-unit address information, and the thermo-on / thermo-off information is stored in the log table Tl _i 2 ( The time information is automatically input together with the time information (see FIG. 23). Also, the outside air temperature information is transmitted from the outside air temperature sensor 10 to the air conditioning management device 20 at the same timing as the transmission timing of the thermo-on / thermo-off information together with the indoor unit address information, and the outside air temperature information has the same timing as that timing. The log table Tl _i 2 is automatically input so as to be associated with the thermo-on / thermo-off information. And in this air-conditioning management apparatus 20, the information processing shown by FIG. 21 and 22 is performed and operation number control is performed every 60 minutes. Note that the thermo-on / thermo-off information used in the following information processing is thermo-on / thermo-off information collected in the past.

21 and 22, the processing in steps S61 to S69 loops until the processing is completed for all the rooms RM11, RM12, RM21, RM22,. In step S61, the 3rd calculating part 22 removes the processed room number from the object of a process. In step S62, the 3rd calculating part 22 extracts the indoor unit address information corresponding to the minimum room number with reference to the room number table Tr (refer FIG. 13). In step S63, the third calculation unit 22 extracts the log table Tl _i 2 corresponding to the indoor unit address information extracted in step S62. In step S64, the third calculation unit 22 substitutes “0” for the variable t. Hereinafter, the process of steps S65-68 loops until the process is completed for all the indoor units 62 corresponding to the selected rooms RM11, RM12, RM21, RM22,. In step S65, the 3rd calculating part 22 removes processed indoor unit address information from the object of a process. In step S66, the third calculation unit 22 extracts the thermo-on / thermo-off information from the log table Tl _i 2 corresponding to the indoor unit address information whose last three digits are the smallest number. In step S67, the 3rd calculating part 22 determines whether all the thermo on / thermo off information extracted in step S66 is thermo off information. As a result of the determination by the third calculation unit 22 in step S67, when all the thermo-on / thermo-off information is thermo-off information, the process proceeds to step S68. In step S68, the third calculation unit 22 performs a calculation process for adding 1 to the variable t. If the result of determination by the third calculation unit 22 in step S67 is that all the thermo-on / thermo-off information is not thermo-off information, the process returns to step S65 or proceeds to step S69. The process returns to step S65 when the process has not been completed for all the indoor units 62 corresponding to the selected rooms RM11, RM12, RM21, RM22,..., And the process moves to step S69. Is the case where the processing is completed for all the indoor units 62 corresponding to the selected rooms RM11, RM12, RM21, RM22,. In step S69, the third calculation unit 22 additionally stores t and the outdoor temperature information corresponding to the t in a relational expression creation table (not shown). When the process of step S69 ends, the process returns to step S61 or proceeds to step S70. Note that the process returns to step S61 when the process is not completed for all rooms RM11, RM12, RM21, RM22,..., And the process moves to step S70 for all rooms RM11, RM12, RM21,. This is a case where the processing is completed for RM22,. In step S70, the third calculation unit 22 performs a regression analysis of t and the outside air temperature on each of the rooms RM11, RM12, RM21, RM22,. And function. In step S <b> 71, the third communication unit 25 transmits an outside air temperature information provision command to the outside air temperature sensor 10. In step S72, the third calculation unit 22 derives the number of operating units in each room by substituting the outside air temperature information into the function obtained in step S70.

  Note that which indoor unit 62 is to be stopped is based on the priority management table Tp as in the case of the previous embodiment.

(H)
In the air conditioning system 1 according to the previous embodiment, the priority order management table Tp is periodically updated based on the thermo-off integrated time information of each indoor unit 62. However, the number of people in the predetermined area and the number of people in the predetermined area are further updated. The priority order management table Tp may be periodically updated in consideration of information such as the presence or absence of. Information such as the number of people in the predetermined area and the presence / absence of people in the predetermined area can be obtained using a human detection sensor, an infrared sensor, a monitoring camera, an entrance / exit management system, and the like. In other words, an indoor unit corresponding to an area with a large number of people and an indoor unit corresponding to an area where there are people are given higher driving priority. In such a case, it is preferable to prioritize the determination of the driving priority based on information such as the number of persons existing in the predetermined area and the presence / absence of persons in the predetermined area over the determination of the driving priority based on the thermo-off integrated time information.

(I)
In the air conditioning system 1 according to the previous embodiment, the priority order management table Tp is periodically updated based on the thermo-off integrated time information of each indoor unit 62. However, instead of such a mode, the setting of each indoor unit 62 is set. The priority management table Tp may be periodically updated based on the temperature information. In other words, an indoor unit having a lower set temperature during cooling and an indoor unit having a higher set temperature during heating increase the operation priority. If it does in this way, an indoor unit with a high air-conditioning load will be operated preferentially, and an indoor unit with a low air-conditioning load will be stopped preferentially. Therefore, in such an air conditioning system, energy consumption can be sufficiently reduced while maintaining the air conditioning environment as comfortably as possible. The set temperature information may be an instantaneous value immediately before executing the operation number control. In addition to such a mode, the priority management table Tp may be periodically updated in consideration of information such as the number of people in a predetermined area and the presence / absence of people in the predetermined area. Information such as the number of people in the predetermined area and the presence / absence of people in the predetermined area can be obtained using a human detection sensor, an infrared sensor, a monitoring camera, an entrance / exit management system, and the like. In other words, an indoor unit corresponding to an area with a large number of people and an indoor unit corresponding to an area where there are people are given higher driving priority. In such a case, it is preferable to prioritize the determination of the operation priority based on information such as the number of persons existing in the predetermined area and the presence / absence of persons in the predetermined area over the determination of the operation priority based on the set temperature information.

(J)
In the air conditioning system 1 according to the previous embodiment, the priority order management table Tp is periodically updated based on the thermo-off integrated time information of each indoor unit 62. However, instead of such a mode, each room RM11, RM12, RM21, RM22,..., The priority order management table Tp may be periodically updated based on information input by the occupants. In other words, a sensation input device that can input information such as “hot” and “cold” in advance is provided on the disk of the occupant, and information such as “hot” during cooling or “cold” during heating is input. This means that the indoor unit corresponding to the area where the occupant is present increases the driving priority. Further, the number of inputs may be taken into account (for example, the number of inputs in the past two weeks). In such an air conditioning system, the user's intention can be reflected in the priority order of the operation / stop of the indoor units. The input information of the occupants may be an instantaneous value immediately before executing the operation number control. In addition to such a mode, the priority management table Tp may be periodically updated in consideration of information such as the number of people in a predetermined area and the presence / absence of people in the predetermined area. Information such as the number of people in the predetermined area and the presence / absence of people in the predetermined area can be obtained using a human detection sensor, an infrared sensor, a monitoring camera, an entrance / exit management system, and the like. In other words, an indoor unit corresponding to an area with a large number of people and an indoor unit corresponding to an area where there are people are given higher driving priority. In such a case, it is preferable that the determination of the driving priority based on the information such as the number of persons existing in the predetermined area and the presence / absence of the person in the predetermined area is given priority over the determination of the driving priority based on the input information of the occupants. .

(K)
In the air conditioning system 1 according to the previous embodiment, the priority order management table Tp is periodically updated based on the thermo-off integrated time information of each indoor unit 62. However, instead of such a mode, a human sensor or infrared ray is used. The priority order management table Tp may be periodically updated based on human detection information or image information from a sensor, a monitoring camera, or the like. That is, the priority management table Tp may be periodically updated in consideration of information such as the number of people in the predetermined area and the presence or absence of people in the predetermined area. Information such as the number of people in the predetermined area and the presence / absence of people in the predetermined area can be obtained using a human detection sensor, an infrared sensor, a monitoring camera, an entrance / exit management system, and the like. In such a case, the indoor unit corresponding to the area where the number of people is large, and the indoor unit corresponding to the area where there is a person are given higher driving priority. In such an air conditioning system, an indoor unit with a low air conditioning load (a small number of people to be air-conditioned) can be preferentially stopped. Therefore, in such an air conditioning system, energy consumption can be sufficiently reduced while maintaining the air conditioning environment as comfortably as possible.

(L)
Although not particularly mentioned in the previous embodiment, when there is an indoor unit 62 stopped in a certain room RM11, RM12, RM21, RM22,..., A predetermined interval within a predetermined priority range. Then, the indoor unit to be stopped may be rotated. In this way, discomfort due to temperature unevenness caused by stopping the indoor unit 62 can be reduced.

(M)
In the air conditioning system 1 according to the previous embodiment, the priority order management table Tp is periodically updated based on the thermo-off integrated time information of each indoor unit 62. However, instead of such an aspect, the thermo-off of each indoor unit 62 is performed. Priority management table Tp based on weighted sum value, weighted average value, etc. of accumulated time information, set temperature information (as modified example (I)), and occupant input information (as modified example (J)) May be periodically updated. In this way, an indoor unit with a high air conditioning load is preferentially operated, and an indoor unit with a low air conditioning load is preferentially stopped, and at the same time, an indoor unit suitable for a change in a complicated situation is selected. You can drive with priority. Therefore, in such an air conditioning system, energy consumption can be sufficiently reduced while maintaining the air conditioning environment as comfortably as possible. In addition to such a mode, the priority management table Tp may be periodically updated in consideration of information such as the number of people in a predetermined area and the presence / absence of people in the predetermined area. Information such as the number of people in the predetermined area and the presence / absence of people in the predetermined area can be obtained using a human detection sensor, an infrared sensor, a monitoring camera, an entrance / exit management system, and the like. In other words, an indoor unit corresponding to an area with a large number of people and an indoor unit corresponding to an area where there are people are given higher driving priority. In such a case, the determination of the driving priority based on the information such as the number of persons existing in the predetermined area and the presence / absence of the person in the predetermined area is given priority over the determination of the driving priority based on the weighted sum value or the weighted average value. Is preferred.

(N)
In the air conditioning system 1 according to the previous embodiment, the priority order management table Tp is periodically updated based on the thermo-off integrated time information of each indoor unit 62. However, instead of such a mode, the thermo-off / thermo-on in a predetermined period is used. The priority management table Tp may be periodically updated based on the number of switching frequencies. That is, the indoor unit having a lower frequency of switching off the thermo-off / thermo-on during the predetermined period increases the operation priority. In such an air conditioning system, the uncomfortable feeling of the occupants can be reduced. In addition, it is preferable that the predetermined period is a predetermined period immediately before the operation number control is executed.

(O)
In the air conditioning system 1 according to the previous embodiment, the multi-type air conditioners 60A, 60B,... Are employed, but a pair-type air conditioner or an integrated air conditioner may be employed. In such a case, thermo-off / thermo-on may be associated with the operation / stop of the compressor.

(P)
In the air conditioning system 1 according to the previous embodiment, the refrigerant circuit 67 of the multi-type air conditioning apparatus 60A, 60B,... Is filled with the chlorofluorocarbon refrigerant as the refrigerant. Natural refrigerants such as ammonia or hydrocarbon refrigerants may be filled.

(Q)
In the air conditioning system 1 according to the previous embodiment, the air conditioning management device 20 starts control or collects information at various timings, but such timings are not particularly limited and are arbitrary. It can be determined.

(R)
Although not particularly mentioned in the previous embodiment, there is an indoor unit 62 that is stopped in a certain room RM11, RM12, RM21, RM22,... When the unit 62 is in the thermo-on state, any one of the stopped indoor units 62 may be operated and the information may be reflected in the operating number management table Tm.

(S)
In the air-conditioning system 1 according to the previous embodiment, when there are a plurality of indoor units that are in the thermo-off state at times other than the start-up (during operation), the air-conditioning management device 20 is the room in the thermo-off state that has the highest operation priority. Except for the unit 62, the indoor units in the thermo-off state were stopped. However, the air conditioning management device 20 may stop the indoor units in the thermo-off state except for the plurality of thermo-off state indoor units 62 having a high operation priority.

(T)
In the air conditioning system 1 according to the previous embodiment, the operation number control table Tm as shown in FIG. 6 is adopted in the operation number control at the time of start-up. Instead of this, the operation as shown in FIG. The number management table Tm3 may be employed. The operating number management table Tm3 is created in each room RM11, RM12, RM21, RM22,. In the operating number management table Tm3, the operating number information is associated with the outside air temperature range information and the time information. That is, in the air conditioning system in which the operation number management table Tm3 is introduced, the number of the indoor units 62 in each room RM11, RM12, RM21, RM22,. Will be controlled.

(U)
In the air conditioning system 1 according to the previous embodiment, the priority order management table Tp is periodically updated based on the thermo-off integrated time information of each indoor unit 62. However, instead of such an aspect, the thermo-off of each indoor unit 62 is performed. Based on a combination of a plurality of factors such as accumulated time information, set temperature information (as modified example (I)), and occupant input information (as modified example (J)), the priority order management table Tp is periodically It may be updated. In such a case, it is necessary to prioritize the plurality of factors. For example, when the same priority is assigned to a certain factor, the priority is determined by the factor having the next highest priority. In this way, an indoor unit with a high air conditioning load is preferentially operated, and an indoor unit with a low air conditioning load is preferentially stopped, and at the same time, an indoor unit suitable for a change in a complicated situation is selected. You can drive with priority. Therefore, in such an air conditioning system, energy consumption can be sufficiently reduced while maintaining the air conditioning environment as comfortably as possible. In addition to such a mode, the priority management table Tp may be periodically updated in consideration of information such as the number of people in a predetermined area and the presence / absence of people in the predetermined area. Information such as the number of people in the predetermined area and the presence / absence of people in the predetermined area can be obtained using a human detection sensor, an infrared sensor, a monitoring camera, an entrance / exit management system, and the like. In other words, an indoor unit corresponding to an area with a large number of people and an indoor unit corresponding to an area where there are people are given higher driving priority. In such a case, the determination of the driving priority based on the information such as the number of persons existing in the predetermined area and the presence / absence of the person in the predetermined area is given priority over the determination of the driving priority based on the weighted sum value or the weighted average value. Is preferred.

(V)
In the air conditioning system 1 according to the previous embodiment, the operation number control is executed at the time of startup, but all the indoor units 62 may be operated at the time of startup.

(W)
In the air-conditioning system 1 according to the previous embodiment, when the number of indoor units in the thermo-off state is zero and all the indoor units are not in operation at a time other than startup (during operation), the third communication unit 25 The operation command information is transmitted to the indoor unit having the highest operation priority among the stopped indoor units in accordance with the instruction of the 3 control unit 21. In such a case, the third communication unit 25 receives the third control unit 21. The operation command information may be transmitted to a plurality of indoor units having a high operation priority among the stopped indoor units.

  The air conditioning system according to the present invention has a feature that the energy consumption can be sufficiently reduced without an air conditioning management device or the like performing complicated calculations, and can contribute to energy saving in society.

The schematic block diagram of the air conditioning system which concerns on embodiment of this invention. The schematic block diagram of the multi-type air conditioning apparatus which concerns on embodiment of this invention. The functional block diagram of the outdoor control part which concerns on embodiment of this invention. The functional block diagram of the indoor control part which concerns on embodiment of this invention. The functional block diagram of the air-conditioning management apparatus which concerns on embodiment of this invention. The image figure of the operation number management table stored in the air-conditioning management apparatus which concerns on embodiment of this invention. The image figure of the priority management table stored in the air-conditioning management apparatus which concerns on embodiment of this invention. The flowchart (1) showing the flow of the operation number control of the indoor unit performed at the time of starting in the air conditioning system which concerns on embodiment of this invention. The flowchart (2) showing the flow of the operation number control of the indoor unit performed at the time of starting in the air conditioning system which concerns on embodiment of this invention. The flowchart (1) showing the flow of the regular update of the operation number management table performed in the air-conditioning management apparatus which concerns on embodiment of this invention. The flowchart (2) showing the flow of the periodic update of the operation number management table performed in the air-conditioning management apparatus which concerns on embodiment of this invention. The image figure of the log table stored in the air-conditioning management apparatus which concerns on embodiment of this invention. The image figure of the room number table stored in the air-conditioning management apparatus which concerns on embodiment of this invention. The flowchart showing the flow of the periodic update of the priority management table performed in the air-conditioning management apparatus which concerns on embodiment of this invention. The image figure of the thermo-off integrated time information table stored in the air-conditioning management apparatus which concerns on embodiment of this invention. The flowchart (1) showing the flow of the operation number control of the indoor unit performed at times other than the time of starting in the air conditioning system which concerns on embodiment of this invention. The flowchart (2) showing the flow of indoor unit operation number control performed at the time other than the time of starting in the air conditioning system which concerns on embodiment of this invention. The flowchart (3) showing the flow of operation unit number control of the indoor unit performed at times other than the time of starting in the air conditioning system which concerns on embodiment of this invention. The image figure of the operation number management table stored in the air-conditioning management apparatus which concerns on embodiment of this invention. The figure showing an example of the turning airflow control which concerns on the modification (F) of this invention. The flowchart (1) showing the flow of the operation number control of the indoor unit performed in the air-conditioning management apparatus which concerns on the modification (G) of this invention. The flowchart (2) showing the flow of operation unit number control of the indoor unit performed in the air-conditioning management apparatus which concerns on the modification (G) of this invention. The image figure of the log table stored in the air-conditioning management apparatus which concerns on the modification (G) of this invention. The image figure of the operation number management table stored in the air-conditioning management apparatus which concerns on the modification (T) of this invention.

Explanation of symbols

1 Air Conditioning System 21 Third Control Unit (Control Unit)
22 3rd operation part (information deriving part, constant thermo-off state determination part, constant thermo-off state indoor unit number counting part, excess number determination part)
23 3rd memory | storage part (1st table memory | storage part)
25 Third communication unit (first information receiving unit)
62 Indoor units Tm, Tm3 Operating number management table Tp Priority management table

Claims (13)

A plurality of indoor units (62);
A continuous thermo-off state determination unit (22) that determines whether or not each of the plurality of indoor units is always in a thermo-off state within a first period;
A constant thermo-off state indoor unit number counting unit (22) that counts the number of constant thermo-off state indoor units that are indoor units that are determined to be always in the thermo-off state within the first period in the constant thermo-off state determination unit;
An excess number determination unit (22) for determining whether the number of indoor units in the constantly thermo-off state is greater than a predetermined threshold;
When it is determined by the excess number determination unit that the number of the constantly thermo-off state indoor units is greater than a predetermined threshold, at least one of the constantly thermo-off state indoor units is left, and the other constantly thermo-off state indoor units are stopped. An air conditioning system (1) provided with a control part (21). A stop indoor unit presence / absence determining unit that determines whether there is a stop indoor unit that is a stopped indoor unit among the plurality of indoor units;
In the case where the control unit determines that the number of the constantly thermo-off state indoor units is less than a predetermined threshold in the excess number determination unit, and the stop indoor unit presence / absence determination unit determines that there is a stop indoor unit To drive any one or more of the stop indoor units,
The air conditioning system according to claim 1. A plurality of indoor units (62);
A first table storage for storing an operation number management table (Tm, Tm3), which is a table for associating the number of operating units information or the number of stopped units of the indoor unit with at least one kind of information of outside air temperature information, outside air humidity information, and weather information. Part (23);
A first information receiving unit (25) for receiving at least one of the outside air temperature information, outside air humidity information, and the weather information;
The operating number information or the stopped number information is derived by collating at least one of the outside temperature information, the outside humidity information, and the weather information received by the first information receiving unit with the operating number management table. An information deriving unit (22) for
An air conditioning system (1) comprising: a control unit (21) that controls operation / stop of the indoor unit using the operating unit information or the stopped unit information derived in the information deriving unit. A continuous thermo-on state determination unit that determines whether or not each of the plurality of indoor units was always in a thermo-on state within a second period;
A constant thermo-on state number counting unit that counts the number of indoor units determined to be always in the thermo-on state within the second period in the constant thermo-on state determination unit;
A second information receiving unit that receives at least one kind of information of outside air temperature information, outside air humidity information, and weather information in the second period;
Associating at least one of the outside temperature information, the outside humidity information, and the weather information within the second period received by the second information receiving unit with the count information counted by the constant thermo-on state number counting unit. The air conditioning system according to claim 3, further comprising: a table creating unit that creates the operating number management table. A second table storage unit that stores a priority order management table (Tp) that is a table that associates priority order information with indoor unit specifying information that is information specifying each of the plurality of indoor units;
The control unit controls the operation / stop of the indoor unit using the priority management table.
The air conditioning system according to any one of claims 1 to 4. A thermo-off state time measuring unit that measures a thermo-off state time, which is a time in which each of the plurality of indoor units is in a thermo-off state;
The air conditioning system according to claim 5, further comprising: a priority management table creating unit that creates the priority management table using the thermo-off state time. A state switching number counting unit that counts the number of times of switching between the thermo-off state and the thermo-on state in the third period for each of the plurality of indoor units;
The air conditioning system according to claim 5, further comprising a priority management table creation unit that creates the priority management table using the number of times of switching.   The air conditioning system according to claim 5, further comprising a priority management table creation unit that creates the priority management table by using set temperature information of each of the plurality of indoor units or parameter information derived from the set temperature. . An information input section;
The air conditioning system according to claim 5, further comprising: a priority management table creation unit that creates the priority management table using information input in the information input unit. A moving object detection unit;
The air conditioning system according to claim 5, further comprising: a priority management table creation unit that creates the priority management table using a detection result of the moving body detection unit. A mobile management unit;
The air conditioning system according to claim 5, further comprising a priority management table creation unit that creates the priority management table using management information of the mobile body management unit. A continuous thermo-off state determination unit (22) for determining whether or not the indoor unit is always in a thermo-off state within the eleventh period;
In the constant thermo-off state determination unit, a constant thermo-off state indoor unit count unit (22) that counts the number of constant thermo-off state indoor units that are indoor units determined to be always in the thermo-off state within the eleventh period;
An excess number determination unit (22) for determining whether the number of indoor units in the constantly thermo-off state is greater than a predetermined threshold;
When the excess number determining unit determines that the number of the constantly thermo-off state indoor units is greater than a predetermined threshold, any one of the constantly thermo-off state indoor units remains such that at least one of the constantly thermo-off state indoor units remains. An air-conditioning management device (20) comprising a control unit (21) for stopping one or a plurality of units. A table storage unit (23) for storing an operation number management table (Tm), which is a table for associating the operation number information of the indoor unit (62) with at least one kind of information of outside air temperature information, outside air humidity information, and weather information;
An information receiving unit (25) for receiving at least one of the outside air temperature information, outside air humidity information, and the weather information;
An information deriving unit (22) for deriving the operating number information by collating at least one of the outside air temperature information, the outside air humidity information, and the weather information received by the information receiving unit with the operating number management table When,
An air-conditioning management apparatus (20) comprising: a control unit (21) that controls operation / stop of the indoor unit based on the operating number information derived in the information deriving unit.

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