WO2016056113A1 - 省エネルギ化診断装置、省エネルギ化診断方法およびプログラム - Google Patents
省エネルギ化診断装置、省エネルギ化診断方法およびプログラム Download PDFInfo
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- WO2016056113A1 WO2016056113A1 PCT/JP2014/077145 JP2014077145W WO2016056113A1 WO 2016056113 A1 WO2016056113 A1 WO 2016056113A1 JP 2014077145 W JP2014077145 W JP 2014077145W WO 2016056113 A1 WO2016056113 A1 WO 2016056113A1
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- 238000003745 diagnosis Methods 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims description 60
- 238000004891 communication Methods 0.000 description 47
- 238000004378 air conditioning Methods 0.000 description 28
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
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- 230000001186 cumulative effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
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- 239000004973 liquid crystal related substance Substances 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
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- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
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- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/06—Energy or water supply
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Definitions
- the present invention relates to an energy saving diagnosis apparatus, an energy saving diagnosis method, and a program.
- Patent Document 1 discloses a converted power consumption that is obtained by correcting the measured power consumption in the facility before the introduction of energy saving control and the measured power consumption in the facility after the introduction of energy saving control in consideration of weather conditions. And a method for estimating the energy saving effect by evaluating the difference between the two.
- the present invention has been made in view of the above reasons, and an object thereof is to provide an energy saving diagnosis apparatus, an energy saving diagnosis method, and a program capable of improving the estimation accuracy of the energy saving effect.
- an energy saving diagnostic apparatus includes: A power consumption storage unit that stores power consumption in each of a plurality of calculation periods in which the amount of power consumed by the air conditioner is calculated; A parameter storage unit for storing a parameter indicating an environment or an operating state of the air conditioner in each of the plurality of calculation periods; One of a pre-introduction period that is a period before energy-saving control is introduced into the air conditioner and a post-introduction period that is a period after energy-saving control is introduced into the air conditioner A first comparison target period specifying unit that specifies a first comparison target period from a plurality of first periods constituting the period; Based on the parameters stored in the parameter storage unit, when each of a plurality of second periods constituting the other period of the pre-introduction period and the post-introduction period is a comparison target candidate period, Parameters in a first parameter comparison period including a first comparison target period and a first period immediately before or after the first comparison target period, and a second immediately before or
- a second comparison target period specifying unit that specifies, as the second comparison target period, a comparison target candidate period that has the highest degree of similarity with the parameters in the second parameter comparison period including the period, Based on the power consumption amount stored in the power consumption amount storage unit, the power consumption amount in the first comparison target period and the power consumption amount in the second comparison target period are obtained, and consumption in the first comparison target period.
- An energy saving diagnosis unit that diagnoses the degree of energy saving by introducing energy saving control based on the amount of power and the amount of power consumed in the second comparison target period.
- the first comparison target period and the second comparison target period whose parameters are similar to those of the first comparison target period are specified in consideration of parameter variations in the period immediately before or after each comparison target candidate period. .
- the suitable 2nd comparison object period is specified as a comparison object of the 1st comparison object period, the estimation accuracy of an energy saving effect can be improved.
- the energy saving diagnostic apparatus 1 includes air including outdoor units 103 and 203 installed outside the building H, indoor units 104 and 204 installed inside the building H, and remote controllers 105 and 205. Used with a harmony machine.
- the energy-saving diagnostic device 1 is connected to the outdoor units 103 and 203, the indoor units 104 and 204, and the remote controllers 105 and 205 via an air conditioning communication network NT configured by a LAN (Local Area Network) or the like.
- the remote controllers 105 and 205 are connected to the indoor units 104 and 204 via signal lines L1 and L2, respectively.
- the outdoor unit 103, the indoor unit 104, and the remote controller 105 are included in the first system G1, and the outdoor unit 203, the indoor unit 204, and the remote controller 205 are included in the second system G2.
- the building H is further provided with a third system G3 including an outdoor unit, an indoor unit, and a remote controller (not shown).
- the systems G1, G2, and G3 are connected to the power supply 6 through power supply lines PL1, PL2, and PL3, respectively.
- Ammeters 107, 207, and 307 are inserted in power supply lines PL1, PL2, and PL3, respectively.
- the ammeters 107, 207, and 307 are also connected to the energy saving diagnostic apparatus 1 through the air conditioning communication network NT.
- the outdoor unit 103 includes an outdoor temperature sensor 31, an outdoor humidity sensor 32 and an outdoor illuminance sensor 33 that measure the temperature, humidity, and brightness outside the building H, and an outdoor connected to the air conditioning communication network NT.
- the machine communication part 34, the compressor 35, and the outdoor unit control part 36 are provided.
- the compressor 35 is a refrigerant pipe that connects an outdoor unit side heat exchanger (not shown) provided in the outdoor unit 103 and an indoor unit side heat exchanger (not shown) provided in the indoor unit 104. (Not shown) is inserted to circulate the refrigerant in the refrigerant pipe.
- the outdoor unit 203 has the same configuration.
- the outdoor unit control unit 36 includes, for example, a CPU (Central Processing Unit).
- the outdoor unit control unit 36 generates outdoor temperature data, outdoor humidity data, and outdoor illuminance data based on signals input from the outdoor temperature sensor 31, the outdoor humidity sensor 32, and the outdoor illuminance sensor 33, and generates the generated data. , And sent to the air conditioning communication network NT through the outdoor unit communication unit 34.
- the outdoor unit control unit 36 controls the operation of the compressor 35 and sends data indicating the rotation frequency of the compressor 35 to the air conditioning communication network NT through the outdoor unit communication unit 34.
- the indoor unit 104 includes an indoor unit storage unit 41, a suction temperature sensor 42 for measuring the suction temperature of the indoor unit 104, an indoor unit communication unit 43 connected to the air conditioning communication network NT, A machine control unit 44.
- the indoor unit 204 has the same configuration.
- the indoor unit storage unit 41 includes a memory or the like, and stores information indicating an operation mode, a set temperature, and a cumulative operation time of the air conditioner including the outdoor unit 103 and the indoor unit 104.
- the operation mode includes, for example, a cooling operation mode and a heating operation mode.
- the set temperature is, for example, a set temperature with respect to the suction temperature of the air conditioner.
- the cumulative operation time corresponds to a time obtained by cumulatively adding the operation time of the air conditioner.
- the indoor unit control unit 44 is constituted by a CPU, for example.
- the indoor unit control unit 44 uses the suction temperature sensor 42 to generate suction temperature data, and sends the generated suction temperature data to the air conditioning communication network NT through the indoor unit communication unit 43.
- the indoor unit control part 44 acquires the information which shows an operation mode, preset temperature, and accumulated operation time from the indoor unit memory
- the indoor unit control unit 44 updates the accumulated operation time stored in the indoor unit storage unit 41 every time the air conditioner stops. Specifically, the indoor unit control unit 44 updates the accumulated operation time stored in the indoor unit storage unit 41 with a time obtained by adding the time from the latest operation start time to the stop time of the air conditioner.
- the remote controller 105 includes an indoor temperature sensor 51 that measures the temperature, humidity, and brightness inside the building H, an indoor humidity sensor 52, an indoor illuminance sensor 53, a remote control communication unit 54 that is connected to the air conditioning communication network NT, and an operation unit 55. And a remote control unit 56.
- the remote controller 205 has the same configuration.
- the operation unit 55 includes, for example, a plurality of types of push buttons.
- a resident of the building H can control the operations of the outdoor unit 103 and the indoor unit 104 by appropriately operating the operation unit 55.
- the remote control unit 56 is constituted by a CPU, for example.
- the remote control control unit 56 generates indoor temperature data, indoor humidity data, and indoor illuminance data using the indoor temperature sensor 51, the indoor humidity sensor 52, and the indoor illuminance sensor 53, and sends the generated data to the outdoor unit communication unit 34.
- To the air conditioning communication network NT When the outdoor unit control unit 36 receives an operation of the operation unit 55 by a resident of the building H, the outdoor unit control unit 36 sends a control signal corresponding to the operation content to the air conditioning communication network NT through the remote control communication unit 54.
- the power source 6 outputs 200V AC power, for example.
- the ammeter 107 samples the current value of the alternating current flowing through the power line PL1 at a constant time interval, and sends current value data indicating the sampled current value to the air conditioning communication network NT.
- the sampling time interval of the ammeter 107 is set to 2 to 5 msec, for example.
- the ammeters 207 and 307 have the same configuration.
- the energy-saving diagnostic device 1 collects various parameters from the air conditioner, and estimates the power consumption by eliminating the influence of the environment based on the measured values of the power consumption in the air conditioner and the collected parameters. Calculate the value.
- the energy saving diagnostic apparatus 1 is constituted by, for example, a general-purpose personal computer. As shown in FIG. 3, the energy saving diagnostic apparatus 1 includes an input unit 11 for a user to input various information, an output unit 12 for outputting various information, a control unit 13, and a ROM (Read Only Memory). 14, a RAM (Random Access Memory) 15, a communication unit 16 connected to the air conditioning communication network NT, and a storage device 17.
- the input unit 11 includes a keyboard, for example.
- the input unit 11 receives various information input by the user.
- the output unit 12 is composed of a liquid crystal display, for example.
- the output unit 12 outputs various information input from the control unit 13.
- the control unit 13 is composed of, for example, a CPU, and controls the entire energy saving diagnostic apparatus 1. For example, the control unit 13 executes an energy saving diagnosis process. Details of the energy saving diagnosis process will be described later.
- the control unit 13 includes a timer 13a that measures time.
- the ROM 14 is composed of a nonvolatile memory, and stores a program for the control unit 13 to control the entire energy saving diagnostic apparatus 1.
- the ROM 14 stores, for example, a program for executing energy saving diagnosis processing.
- the RAM 15 is composed of a volatile memory. A part of the RAM 15 is provided with a work area for temporarily storing data necessary for the control unit 13 to perform processing.
- the communication unit 16 is composed of an interface device for connecting to the air conditioning communication network NT, for example.
- the storage device 17 is composed of a hard disk drive or the like.
- the storage device 17 includes a current value storage unit 171 that stores a current value, a power consumption storage unit 172 that stores a power consumption, and a parameter storage unit 173 that stores various parameters.
- the current value storage unit 171 stores the current value acquired from the ammeter 107 through the air conditioning communication network NT.
- the power consumption storage unit 172 stores the power consumption in the air conditioner.
- the power consumption amount storage unit 172 stores the power consumption amount before introducing energy saving control and the power consumption amount after introducing energy saving control for the air conditioner.
- the power consumption amount storage unit 172 stores the power consumption amounts in a plurality of air conditioners in association with time information for each system.
- the time information corresponds to, for example, the end time of the period for calculating the corresponding power consumption amount.
- the parameter storage unit 173 stores various parameters acquired by the outdoor unit 103, the indoor unit 104, and the remote controller 105, respectively.
- the parameter storage unit 173 stores various parameters before introducing energy saving control for the air conditioner and various parameters after introducing energy saving control.
- the parameters include environmental parameters and operation parameters.
- the environmental parameter is a parameter indicating an environment in which an air conditioner (the outdoor unit 103, the indoor unit 104) is installed, such as outdoor temperature, weather, and sunshine duration.
- An operation parameter is a parameter which shows the operation condition of an air conditioner, such as the operation mode, set temperature, and cumulative operation time of an air conditioner. For example, as shown in FIG.
- the parameter storage unit 173 includes, for each system, an indoor unit suction temperature, an indoor unit operation, an outdoor temperature, a compressor operating frequency, an indoor temperature, and the like for each system.
- a set of parameter information indicating these parameters is stored as one set, and a plurality of sets of parameters are stored in association with time information.
- “indoor unit suction temperature”, “outdoor temperature”, and “indoor temperature” correspond to environmental parameters
- “indoor unit operation” and “compressor operating frequency” correspond to operating parameters.
- the diagnostic period / time interval storage unit 174 calculates information indicating a pre-introduction period before introducing energy-saving control into the air conditioner, information indicating a post-introduction period after introducing energy-saving control, and power consumption.
- Time interval information indicating a time interval is stored.
- the information indicating the pre-introduction period and the information indicating the post-introduction period are composed of period start time information indicating the start time of the period and period end time information indicating the end time of the period.
- the period before introduction and the period after introduction are set to, for example, one month.
- the time interval information includes information indicating a time interval for calculating the power consumption and acquiring the parameters. This time interval is set to 30 minutes, for example.
- the specific period storage unit 175 has, for each of the systems G1, G2, and G3, the first comparison period (first comparison target period) included in the first half of the introduction and the first comparison period in the post-introduction period that has the most similar parameters.
- a specific period table that associates two comparison periods (second comparison target periods) is stored.
- the length of the first comparison period (second comparison period) is the same as the first period (second period), which is a unit period when searching for a period in which the parameters are similar to those of the pre-introduction period in the post-introduction period. It is set to length. Further, the first period and the second period have the same time length.
- the pre-introduction period is one month in May 2014
- the post-introduction period is one month in June 2014
- the time lengths of the first comparison period and the second comparison period are both set to one day.
- the specific period table of the first system G1 includes the first comparison periods “5/3”, “5/4”, “5/5”,..., “5 / 30 ”is associated with the second comparison periods“ 6/12 ”,“ 6/6 ”,“ 6/15 ”,...,“ 6/3 ”.
- the second comparison period whose parameters are similar to the first comparison period “5/3”, “5/4”, “5/5”,..., “5/30” is “6/12”. , “6/6”, “6/15”,..., “6/3”.
- the diagnosis result storage unit 176 stores, as diagnosis results, the effect values indicating the energy saving effect due to the introduction of the energy saving control calculated by the energy saving diagnosis unit 135 for each of the systems G1, G2, and G3.
- the weighting coefficient calculation storage unit 177 stores the weighting coefficient used by the coefficient setting unit 137 and the difference between the dissimilarity S and the power consumption used when calculating the weighting coefficient.
- the control unit 13 includes a current value acquisition unit 131, a power consumption calculation unit 132, a parameter acquisition unit 133, a first comparison period specification unit 134a, a second comparison period specification unit 134b, an energy saving diagnosis. Functions as a unit 135, a result output unit 136, and a coefficient setting unit 137.
- the current value acquisition unit 131 acquires current value data sent from the ammeters 107, 207, and 307 to the air conditioning communication network NT, and stores the acquired current value data in the current value storage unit 171.
- the current value acquisition unit 131 stores the current value data in the current value storage unit 171 in association with measurement time information indicating the measurement time of the current value for each system.
- the power consumption calculation unit 132 calculates the power consumption in the air conditioner. Specifically, the power consumption amount calculation unit 132 calculates the power consumption amount at regular time intervals based on the current value data stored in the current value storage unit 171, and uses the calculated power consumption amount as time information. At the same time, it is stored in the power consumption storage unit 172. In the example illustrated in FIG. 5, the power consumption amount calculation unit 132 sets the time interval to 30 minutes and calculates the power consumption amount every 30 minutes. Specifically, the power consumption calculating unit 132 changes the power consumption at the time “2014/6/24 10:00” from “2014/6/24 9:30” to “2014/6/24 10:00”. "Based on the current value data until". " Details of the operation of the power consumption calculation unit 132 will be described later.
- the parameter acquisition unit 133 acquires various parameters at regular time intervals from the air conditioner through the air conditioning communication network NT.
- the parameter acquisition unit 133 acquires, for example, parameters acquired by the outdoor unit 103, the indoor unit 104, and the remote controller 105 through the air conditioning communication network NT and stores them in the parameter storage unit 173.
- the parameter acquisition unit 133 acquires the suction temperature of the indoor unit 104, the operating state of the indoor unit 104, the outdoor temperature, the compressor operating frequency, the indoor temperature, and the like as parameters.
- FIG. 6 shows a case where the parameter acquisition unit 133 sets the time interval to 30 minutes. The time information associated with various parameters is set to match the time information associated with the power consumption.
- specification part) 134a specifies a 1st comparison period from the some 1st period which comprises the period before introduction.
- the second comparison period specifying unit (second comparison target period specifying unit) 134b calculates the parameters in the first parameter comparison period and the parameters in the second parameter comparison period.
- the comparison target candidate period with the highest similarity is specified as the second comparison period.
- the first parameter comparison period is a period including the first comparison period and the first period immediately before the first comparison period.
- the second parameter comparison period includes a comparison target candidate period and a second period immediately before the comparison target candidate period when each of the plurality of second periods constituting the post-introduction period is a comparison target candidate period. It is. Details of the operations of the first comparison period specifying unit 134a and the second comparison period specifying unit 134b will be described later.
- the energy saving diagnosis unit 135 saves energy based on the respective power consumption amounts of the first comparison period specified by the first comparison period specifying unit 134a and the second comparison period specified by the second comparison period specifying unit 134b. Diagnose the degree of energy saving associated with the introduction of energy control. Specifically, the energy saving diagnosis unit 135 calculates the difference between the power consumption before the introduction of energy saving control and the power consumption after the introduction of energy saving control.
- the result output unit 136 outputs information indicating the energy saving effect calculated by the energy saving diagnosis unit 135 to the output unit 12.
- the diagnosis period acquisition unit 138 first prompts the user to input a diagnosis pre-introduction period and a post-introduction period to be used for energy saving diagnosis processing via the output unit 12.
- the diagnostic period acquisition unit 138 stores the input period in the diagnostic period / time interval storage unit 174.
- the energy saving diagnosis process shown in FIG. 8 is started when the user inputs a command for starting the execution of the energy saving diagnosis process via the input unit 11, for example.
- the diagnosis period acquisition unit 138 acquires information indicating the pre-introduction period and the post-introduction period input by the user, and the acquired information indicating the pre-introduction period and the post-introduction period is the diagnosis period / time interval storage unit 174. (Step S1).
- the current value acquisition unit 131 and the parameter acquisition unit 133 determine whether or not the pre-introduction period before the introduction of energy saving control into the air conditioner has started (step S2). Specifically, the current value acquisition unit 131 and the parameter acquisition unit 133 acquire the period start time information of the pre-introduction period from the diagnostic period / time interval storage unit 174, and the time indicated by the acquired period start time information has arrived. Determine whether or not. The current value acquisition unit 131 and the parameter acquisition unit 133 maintain the standby state unless the period start time of the post-introduction period arrives (step S2: No).
- step S2 when the period start time of the post-introduction period comes (step S2: Yes), the current value acquisition unit 131, the power consumption amount calculation unit 132, and the parameter acquisition unit 133 cooperate to calculate the power consumption amount.
- a parameter acquisition process is executed (step S3).
- the power consumption calculating unit 132 calculates the power consumption in the air conditioner in the pre-introduction period, and causes the power consumption storage unit 172 to store information indicating the calculated power consumption.
- the parameter acquisition unit 133 acquires various parameters in the pre-introduction period and stores them in the parameter storage unit 173. Details of the power consumption calculation process will be described later.
- the current value acquisition unit 131 and the parameter acquisition unit 133 determine whether or not the pre-introduction period before the introduction of the energy saving control has ended (step S4). Specifically, the current value acquisition unit 131 and the parameter acquisition unit 133 acquire the end time of the pre-introduction period from the diagnostic period / time interval storage unit 174. The current value acquisition unit 131 determines whether or not the pre-introduction period has ended based on a result of comparing the period end time information of the pre-introduction period and the time information corresponding to the calculated power consumption. The parameter acquisition unit 133 determines whether or not the pre-introduction period has ended, based on the result of comparing the period end time information of the pre-introduction period and the time information corresponding to the acquired parameter.
- step S4 it is assumed that the current value acquisition unit 131 and the parameter acquisition unit 133 determine that the pre-introduction period has not ended (step S4: No). This is the case, for example, when the time that has passed a certain time interval from the time corresponding to the calculated power consumption (the time corresponding to the acquired parameter) is before the period end time of the pre-introduction period.
- the current value acquisition unit 131, the power consumption amount calculation unit 132, and the parameter acquisition unit 133 cooperate to execute the process of step S3 again.
- step S4 the current value acquisition unit 131 and the parameter acquisition unit 133 determine that the pre-introduction period has ended (step S4: Yes). This is the case, for example, when the time after a certain time interval has passed after the time corresponding to the calculated power consumption (the time corresponding to the acquired parameter) is after the period end time of the pre-introduction period. is there.
- the coefficient setting unit 137 performs a weighting coefficient calculation process for calculating a weighting coefficient included in a relational expression used for a comparison period specifying process described later (step S5). Details of the weighting coefficient calculation process will be described later.
- the current value acquisition unit 131 and the parameter acquisition unit 133 determine whether or not the post-introduction period after the introduction of energy saving control into the air conditioner has started (step S6). Specifically, the current value acquisition unit 131 and the parameter acquisition unit 133 acquire the period start time information of the post-introduction period from the diagnostic period / time interval storage unit 174, and the time indicated by the acquired period start time information has arrived. Determine whether or not.
- the user introduces energy saving control to the air conditioner, for example, during the period from the end of the pre-introduction period to the start of the post-introduction period.
- step S6 when the period start time of the post-introduction period comes (step S6: Yes), the current value acquisition unit 131, the power consumption calculation unit 132, and the parameter acquisition unit 133 cooperate to calculate the power consumption.
- a parameter acquisition process is executed (step S7).
- the power consumption amount calculation unit 132 calculates the power consumption amount in the air conditioner in the post-introduction period, and causes the power consumption amount storage unit 172 to store information indicating the calculated power consumption amount.
- the parameter acquisition unit 133 acquires various parameters in the post-introduction period and stores them in the parameter storage unit 173.
- the current value acquisition unit 131 and the parameter acquisition unit 133 determine whether or not the post-introduction period after the introduction of the energy saving control has ended (step S8). Specifically, as in step 5 described above, the current value acquisition unit 131 performs post-introduction based on the result of comparing the period end time information of the post-introduction period with the time information corresponding to the calculated power consumption. It is determined whether or not the period has ended. Further, the parameter acquisition unit 133 determines whether or not the post-introduction period has ended based on a result of comparing the period end time information of the post-introduction period and the time information corresponding to the acquired parameter.
- step S8 If it is determined in step S8 that the post-introduction period has not ended (step S8: No), the current value acquisition unit 131, the power consumption calculation unit 132, and the parameter acquisition unit 133 cooperate to again perform step S7. Execute the process.
- step S8 if it is determined in step S8 that the post-introduction period has ended (step S8: Yes), the first comparison period specifying unit 134a and the second comparison period specifying unit 134b cooperate to perform the comparison period specifying process. Execute (Step S9).
- the second comparison period specifying unit 134b specifies a period whose parameters are similar to those of the pre-introduction period before the introduction of the energy saving control, from among a plurality of comparison candidate periods constituting the after introduction period after the introduction of the energy saving control. Then, the specified period is registered in the specific period table as the second comparison period. Details of the comparison period specifying process will be described later.
- the energy saving diagnosis unit 135 calculates the effect value SDA indicating the energy saving effect by introducing the energy saving control to the air conditioner based on the specific period table described in the specific period storage unit 175. Calculation processing is executed (step S10). Details of the energy saving effect calculation process will be described later.
- the result output unit 136 outputs the effect value SDA stored in the diagnosis result storage unit 176 to the output unit 12 (step S11).
- step S3 and S7 the contents of the power consumption calculation / parameter acquisition process (steps S3 and S7) in FIG. 8 will be described in detail with reference to FIG.
- the power consumption calculation unit 132 acquires information indicating a certain time interval from the diagnostic period / time interval storage unit 174 (S101), and starts timing by activating the timer 13a (S102).
- the current value acquisition unit 131 acquires current value data from each of the ammeters 107, 207, and 307 through the air conditioning communication network NT and the communication unit 16, and stores the acquired current value data in the current value storage unit 171.
- the current value acquisition unit 131 stores the current value data acquired from each of the ammeters 107, 207, and 307 in the current value storage unit 171 in association with the air conditioner systems G1, G2, and G3.
- the power consumption amount calculation unit 132 determines whether or not a certain time interval has elapsed since the start of time measurement (step S104).
- step S104 If it is determined in step S104 that a certain time interval has not elapsed since the start of time measurement (step S104: No), the current value acquisition unit 131 performs the process of step S103 again.
- step S104 when it is determined in step S104 that a certain time interval has elapsed from the start of time measurement (step S104: Yes), the power consumption amount calculation unit 132 ends time measurement by stopping and resetting the timer 13a ( Step S105).
- the power consumption calculation unit 132 calculates the power consumption in the air conditioner using current value data within a certain time interval from the start to the end of time measurement, and consumes the calculated power consumption. It is stored in the electric energy storage unit 172 (step S106).
- the power consumption calculation unit 132 acquires the current value data stored in the current value storage unit 171 in association with the air conditioner systems G1, G2, and G3 from the current value storage unit 171.
- the power consumption calculation part 132 calculates power consumption separately for every system
- the parameter acquisition unit 133 acquires various parameters from the air conditioner, and stores the acquired various parameters in the parameter storage unit 173 (step S107). For example, in the example illustrated in FIG. 6, the parameter acquisition unit 133 acquires the suction temperature of the indoor unit 104, the operating state of the indoor unit 104, the outdoor temperature, the compressor operating frequency, the indoor temperature, and the like as parameters. And it returns to an energy saving diagnostic process again.
- the parameter acquisition unit 133 acquires parameters individually for each of the systems G1, G2, and G3 of the air conditioner, distinguishes the acquired parameters for each of the systems G1, G2, and G3, and stores them in the parameter storage unit 173.
- step S9 the contents of the comparison period specifying process (step S9) in FIG. 8 will be described in detail with reference to FIG. 10 and FIG.
- the first comparison period specifying unit 134a specifies the first parameter comparison period within the pre-introduction period (S201).
- the first parameter comparison period is a period for specifying a period similar to the first comparison period within the post-introduction period in consideration of parameter variations before and after the first comparison period.
- the first parameter comparison period can be set to a period including the first comparison period and the first period immediately before the first comparison period.
- the length of the first comparison period is set to one day, for example.
- the first parameter comparison period is set to a period composed of, for example, the specified first comparison period and two days immediately before the first comparison period. In this case, the first comparison period can be set to a date and time after the third day in the pre-introduction period.
- the first parameter comparison period includes a first comparison period T3, and a period T1 and a period T2 before the first comparison period T2.
- the period to be specified is specified.
- the second comparison period specifying unit 134b acquires the parameter of the specified first parameter comparison period from the parameter storage unit 173 (step S202). For example, when the time interval is set to 30 minutes and the first parameter comparison period is set to 3 days, the second comparison period specifying unit 134b sets the 144 sets of parameters in the first parameter comparison period stored in the parameter storage unit 173. To get.
- the second comparison period specifying unit 134b specifies the second parameter comparison period within the post-introduction period (S203).
- the second parameter comparison period can be set to a period including, for example, a comparison target candidate period and a second period immediately before the comparison target candidate period.
- the second parameter comparison period is set to the same time length as the first parameter comparison period.
- the first parameter comparison period is set to a period composed of a first comparison period T3 and periods T1 and T2 before the first comparison period T3.
- the comparison target candidate period is the period U3
- the second parameter comparison period is composed of the comparison target candidate period U3 and the periods U1 and U2 before the comparison target candidate period U3. Set to period.
- the second comparison period specifying unit 134b acquires the parameters of the specified second parameter comparison period from the parameter storage unit 173 (step S204).
- the second comparison period specifying unit 134b calculates the dissimilarity S using the acquired parameter (step S205).
- the second comparison period specifying unit 134b adds the weighting coefficient to the absolute value of the difference between the parameters of the specified first parameter comparison period and the second parameter comparison period and then adds the relational expression of the following expression (1).
- S w 00
- i is an identification number for identifying the type of parameter.
- N corresponds to the number of parameter types.
- j is an identification number for identifying a relative time within the first parameter comparison period or the second parameter comparison period. j corresponds to the order from the beginning of each period when the first parameter comparison period or the second parameter comparison period is equally divided into M and arranged in time series.
- T represents the first comparison period, and U represents the comparison target candidate period. The smaller the dissimilarity S, the higher the parameter similarity.
- the weighting coefficient wi is calculated by a weighting coefficient calculation process (see step S5 in FIG. 8) executed by the coefficient setting unit 137.
- the second comparison period specifying unit 134b determines whether or not the comparison target candidate period included in the specified second parameter comparison period is the last period of the post-introduction period (step S206).
- step S206 If it is determined in step S206 that the comparison target candidate period is not the last period of the post-introduction period (step S206: No), the second comparison period specifying unit 134b performs the process of step S203 again.
- the second comparison period specifying unit 134b specifies the second parameter comparison period including the comparison target candidate period immediately after the comparison target candidate period included in the second parameter comparison period specified immediately before as the second parameter comparison period. To do.
- the second comparison period specifying unit 134b when the second comparison period specifying unit 134b has specified the second parameter comparison period including the second comparison period U3 immediately before, the second parameter comparison period including the second comparison period U4. Is identified. That is, the second comparison period specifying unit 134b specifies a period including the second comparison period U4 and the periods U2 and U3 before the second comparison period U4 as the second parameter comparison period. Thereafter, each time the processes of steps S203 to S206 are repeated, the second comparison period specifying unit 134b moves the comparison target candidate period included in the second parameter comparison period to U5, U6,. The second parameter comparison period is specified so as to shift (see the solid line arrow in FIG. 11A). Thus, for example, the dissimilarity between the parameters of the first parameter comparison periods T1 to T3 and the plurality of second parameter comparison periods U1 to U3, U2 to U4,.
- step S206 determines whether the comparison target candidate period is the last period of the post-introduction period (step S206: Yes).
- step S207 A comparison target candidate period is specified (step S207).
- the second comparison period specifying unit 134b performs the second parameter comparison that provides the minimum dissimilarity Smin based on the time series of the dissimilarities S of the first parameter comparison periods including the first comparison period. Specify the period.
- specification part 134b specifies the comparison object candidate period contained in the specified 2nd parameter comparison period.
- the second comparison period specifying unit 134b specifies the comparison target candidate period U12. Also, for example, when the time series of the dissimilarity S corresponding to the first comparison periods T4 and T5 as illustrated in FIG. 11C and FIG. 11D is calculated, the second comparison period specifying unit 134b includes the comparison target candidate period U6, Specify U15.
- the second comparison period specifying unit 134b determines whether the minimum dissimilarity Smin is smaller than a preset minimum dissimilarity threshold Sminth (step S208).
- the minimum dissimilarity threshold value Sminth is set, for example, by the user based on the experience value of dissimilarity when the parameters are similar.
- step S208 When it is determined in step S208 that the minimum dissimilarity Smin is equal to or greater than the minimum dissimilarity threshold Sminth (step S208: No), the second comparison period specifying unit 134b is a period similar to the specified first comparison period. Is determined not to exist within the period after introduction. And the 2nd comparison period specific
- step S208 determines whether the minimum dissimilarity Smin is smaller than the minimum dissimilarity threshold Sminth (step S208: Yes). If it is determined in step S208 that the minimum dissimilarity Smin is smaller than the minimum dissimilarity threshold Sminth (step S208: Yes), the second comparison period specifying unit 134b determines the specified comparison target candidate period as After being stored in the specific period storage unit 175 as the second comparison period (step S209), the process of step S210 is performed.
- step S210 the first comparison period specifying unit 134a determines whether or not the specified first comparison period is the last period of the post-introduction period.
- step S210 If it is determined in step S210 that the specified first comparison period is not the last period of the pre-introduction period (step S210: No), the first comparison period specifying unit 134a performs the process of step S201 again.
- the first comparison period specifying unit 134a specifies the first comparison period immediately after the first comparison period specified immediately before as the first comparison period. And it returns to an energy saving diagnostic process again.
- the first comparison period specifying unit 134a specifies the first comparison period T4 when the first comparison period T3 has been specified immediately before. Further, the first comparison period specifying unit 134a specifies a period composed of the first comparison period T4, the period T2 and the period T3 before the first comparison period T4 as the first parameter comparison period. Thereafter, the first comparison period specifying unit 134a sets the second comparison period so that the first comparison period shifts backward on the time axis as T5, T6,... The parameter comparison period is specified.
- the second comparison period specifying unit 134b calculates the time series of the dissimilarity S for each of the plurality of first comparison periods (for example, T3, T4, T5) (see the solid line arrow and the one-dot chain line arrow in FIG. 11A). ).
- step S10 the contents of the energy saving effect calculation process (step S10) in FIG. 8 will be described in detail with reference to FIG.
- the energy saving diagnosis unit 135 selects the first comparison period within the period before introduction (S301).
- the energy saving diagnosis unit 135 calculates the total power consumption A1 in the selected first comparison period (step S302). Specifically, the energy saving diagnosis unit 135 acquires all the information indicating the power consumption amounts of the systems G1, G2, and G3 in the selected first comparison period from the power consumption amount storage unit 172. Then, the energy saving diagnosis unit 135 calculates the total power consumption A1 in the first comparison period for each of the systems G1, G2, and G3 from the acquired information. The energy saving diagnosis unit 135 is, for example, as the first comparison period. When “5/3” is selected, the total power consumption A1 between “5/3 0:00” and “5/3 24:00” is calculated.
- the energy saving diagnosis unit 135 selects a second comparison period corresponding to the selected first comparison period (S303).
- the “corresponding second comparison period” corresponds to a second comparison period registered in the specific period table and having parameters similar to those of the first comparison period.
- the energy saving diagnosis unit 135 corresponds to the first comparison period “5/3” for the first system G1. 2. Select “6/12” as the comparison period.
- the energy saving diagnosis unit 135 calculates the total amount A2 of the power consumption in the selected second comparison period (step S304). Specifically, the energy saving diagnosis unit 135 acquires all the information indicating the power consumption amounts of the systems G1, G2, and G3 in the selected second comparison period from the power consumption amount storage unit 172. Then, the energy saving diagnosis unit 135 calculates the total power consumption A2 in the second comparison period for each of the systems G1, G2, and G3 from the acquired information.
- the energy saving diagnosis unit 135 sets a value obtained by adding the difference DA to the effect value SDA indicating the energy saving effect as a new effect value SDA (step S306).
- the energy saving diagnosis unit 135 first acquires the effect value SDA stored in advance in the diagnosis result storage unit 176, and temporarily stores the acquired effect value SDA in the work area of the RAM 15. Thereafter, the energy saving diagnosis unit 135 updates the effect value SDA stored in the work area of the RAM 15 each time the process of step S306 is performed.
- the energy saving diagnosis unit 135 determines whether or not there is a first comparison period in which the total power consumption A1 is not calculated (step S307).
- step S307 If it is determined in step S307 that there is still a first comparison period in which the total power consumption A1 is not calculated (step S307: No), the energy saving diagnosis unit 135 performs the process of step S301 again.
- step S307 determines whether there is no first comparison period in which the total power consumption A1 has not been calculated (step S307: Yes).
- the energy saving diagnosis unit 135 stores the effect value SDA as the diagnosis result. Stored in the unit 176.
- the energy saving diagnosis unit 135 causes the diagnosis result storage unit 176 to store the effect value SDA temporarily stored in the work area of the RAM 15. And it returns to an energy saving diagnostic process again.
- step S5 the contents of the weighting coefficient calculation process (step S5) in FIG. 8 will be described in detail with reference to FIG.
- the coefficient setting unit 137 sets the weighting coefficient included in the above-described relational expression (1) as an initial value (step S401).
- the initial value of the weighting coefficient is stored in the weighting coefficient calculation storage unit 177 by the user via the input unit 11, for example.
- the coefficient setting unit 137 specifies the first period within the period before introduction (S402).
- the coefficient setting unit 137 specifies the first first period of the pre-introduction period, for example.
- the coefficient setting unit 137 specifies another first period within the period before introduction (step S403).
- the coefficient setting unit 137 specifies the second first period from the beginning, for example.
- the coefficient setting unit 137 acquires the power consumption amounts of the two specified first periods from the power consumption storage unit 172 (step S404).
- the coefficient setting unit 137 calculates the difference between the two specified first period power consumption amounts, and stores the calculated difference in the weighting coefficient calculation storage unit 177 (step S405).
- the coefficient setting unit 137 determines whether or not there is a first period in which the difference in power consumption is not calculated within the period before introduction (step S406). It is assumed that the coefficient setting unit 137 calculates the difference in power consumption while shifting backward on the time axis sequentially from the first first period in the period before introduction. In this case, the coefficient setting unit 137 determines whether or not the first period in which the difference in power consumption is calculated corresponds to the last period of the pre-introduction period.
- step S406 If it is determined in step S406 that there is a first period in which the difference in power consumption is not calculated within the pre-introduction period (step S406: No), the coefficient setting unit 137 performs the process of step S403 again.
- the coefficient setting unit 137 specifies the first period adjacent to the rear on the time axis with respect to the first period specified immediately before.
- step S406 determines whether there is no first period in which the difference in power consumption is not calculated in the pre-introduction period. If it is determined in step S406 that there is no first period in which the difference in power consumption is not calculated in the pre-introduction period (step S406: Yes), the coefficient setting unit 137 has the smallest difference in power consumption. The first period is specified (step S407).
- the coefficient setting unit 137 calculates the dissimilarity S using the relational expression (1) described above, and stores the calculated dissimilarity S in the weighting coefficient calculation storage unit 177 (step S408).
- the method of calculating the dissimilarity S is the same as the process of step S205 in the comparison period specifying process.
- the coefficient setting unit 137 changes the value of the weighting coefficient, and stores the changed minimum similarity Smin in the weighting coefficient calculation storage unit 177 (step S409).
- the coefficient setting unit 137 selects one of the plurality of weighting coefficients, increases (decreases) the value of the selected weighting coefficient, and decreases (increases) the values of the other weighting coefficients at the same rate.
- the sum of the values of the plurality of weighting coefficients is made constant.
- the coefficient setting unit 137 monotonously increases or decreases the selected weighting coefficient so that the dissimilarity S decreases.
- the coefficient setting unit 137 calculates the dissimilarity S again using the above-described relational expression (1), and stores the calculated dissimilarity S in the weighting coefficient calculation storage unit 177 (step S410).
- the coefficient setting unit 137 determines whether or not the dissimilarity S calculated using the value of the weighting coefficient before the change is minimum (step S411). Specifically, the coefficient setting unit 137 stores the dissimilarity S calculated using the value of the weighting coefficient before the change stored in the weighting coefficient calculation storage unit 177 and the newly calculated dissimilarity S. And compare. If the dissimilarity S calculated using the value of the weighting coefficient before the change is smaller than the newly calculated dissimilarity S, the dissimilarity S calculated using the value of the weighting coefficient before the change is used. Is determined to be minimal.
- step S411 If it is determined in step S411 that the dissimilarity S calculated using the value of the weighting coefficient before the change is not minimum (step S411: No), the coefficient setting unit 137 performs the process of step S409 again.
- step S411 it is determined that the dissimilarity S calculated using the value of the weighting coefficient before the change is the minimum (step S411: Yes).
- step S412 If it is determined in step S412 that there is still a weighting coefficient that has not calculated a value that minimizes the dissimilarity S (step S412: No), the coefficient setting unit 137 changes the type of weighting coefficient. (Step S413), Step S409 is performed again. For example, the coefficient setting unit 137 changes the weighting coefficient w1 to the weighting coefficient w2 and performs the process of step S409. On the other hand, when it is determined in step S412 whether or not a value that minimizes the dissimilarity S has been calculated for all weighting coefficients (step S412: Yes), the process returns to the energy saving diagnosis process again.
- the power consumption of the air conditioner can vary depending on past parameters.
- the power consumption of an air conditioner on a certain day may fluctuate depending on environmental parameters such as weather conditions on the previous day, or operating parameters indicating the operating condition of the air conditioner.
- the first comparison period specifying unit 134a specifies the first parameter comparison period including the first period immediately before the first comparison period.
- the second comparison period specifying unit 134b specifies the second comparison period included in the second parameter comparison period corresponding to the parameter most similar to the parameter in the specified first parameter comparison period.
- the first comparison period specifying unit 134a and the second comparison period specifying unit 134b are similar in parameters to the first comparison period in consideration of the change in parameters immediately before each first comparison period and each comparison target candidate period.
- a second comparison period is specified. This improves the parameter similarity between the first comparison period and the second comparison period, thereby improving the estimation accuracy of the energy saving effect.
- the power consumption of the air conditioner includes fluctuations in operating parameters such as the operating condition of the air conditioner, in addition to fluctuations in the environmental parameters indicating the environment of the place where the air conditioner is installed, such as outdoor temperature and humidity. Also depends on. For example, if an air conditioner is installed in the office, the air conditioner is stopped on Sundays when the office is closed. There is a tendency for the heat load to increase and power consumption to increase.
- the parameter includes an operation parameter indicating the operation state of the air conditioner.
- variation of the operating parameter of the air conditioner in each 1st comparison period and each comparison object candidate period is considered, and the 2nd comparison period in which a parameter is similar to a 1st comparison period is specified.
- the suitable 2nd comparison period is specified as a comparison object of a 1st comparison period, the estimation precision of an energy saving effect can be improved.
- the second comparison period specifying unit 134b as shown in the above-described relational expression (1), the difference between the parameters and the weighting corresponding to each parameter.
- the second comparison period is specified based on the coefficient wi. That is, in consideration of the influence of the parameter on the power consumption of the air conditioner in each first comparison period and each second comparison period, a second comparison period having a parameter similar to the first comparison period is searched. Thereby, since the suitable 2nd comparison period is specified as a comparison object of a 1st comparison period, the estimation precision of an energy saving effect can be aimed at.
- the dissimilarity S calculated using the parameters of the two first comparison periods in which the difference in power consumption is minimized within the period before introduction is minimized.
- the weighting coefficient of the relational expression (1) is determined.
- the first comparison period specifying unit 134a specifies a period composed of the first comparison period and the first period immediately after the first comparison period as the first parameter comparison period. May be.
- the second comparison period specifying unit 134b may specify a period composed of the comparison target candidate period and the second period immediately after the comparison target candidate period as the second parameter comparison period.
- the first comparison period specifying unit 134a specifies a period composed of the first comparison period and two days immediately after the first comparison period as the first parameter comparison period.
- the second comparison period specifying unit 134b can specify a period composed of the comparison target candidate period and two days immediately after the comparison target candidate period as the second parameter comparison period.
- the first comparison period specifying unit 134a specifies a period composed of the first comparison period and the first period immediately before and immediately after the first comparison period as the first parameter comparison period. May be.
- the second comparison period specifying unit 134b may specify a period composed of the comparison target candidate period and the second period immediately before and immediately after the comparison target candidate period as the second parameter comparison period.
- the first comparison period specifying unit 134a specifies a period composed of the first comparison period and one day immediately before and immediately after the first comparison period as the first parameter comparison period.
- the second comparison period specifying unit 134b can specify a period composed of the comparison target candidate period and one day immediately before and immediately after the comparison target candidate period as the second parameter comparison period.
- the second comparison period specifying unit 134b takes into account future parameter variations in each first comparison period and each second comparison period, and the second comparison period whose parameters are similar to those of the first comparison period. Is identified. Thereby, since the suitable 2nd comparison period is specified as a comparison object of a 1st comparison period, the estimation precision of an energy saving effect can be improved.
- control unit 13 may not include the current value acquisition unit 131, the power consumption amount calculation unit 132, and the parameter acquisition unit 133.
- the power consumption amount and the parameter need only be stored in advance in the power consumption amount storage unit 172 and the parameter storage unit 173, respectively.
- the second comparison period specifying unit 134b squares the difference between the various parameters of the specified first comparison period and the various parameters of each of the plurality of second comparison periods as the dissimilarity. A sum may be adopted.
- the second comparison period specifying unit 134b uses, as the dissimilarity, the specified first comparison period and the plurality of second comparison periods in the Euclidean space formed by various parameters of the first comparison period and the second comparison period. You may employ
- the relational expression (1) can be made appropriate in consideration of the parameter in the post-introduction period.
- the remote controllers 105 and 205 may be connected to a plurality of outdoor units.
- various sensors such as a blower fan or a temperature sensor may be connected to the energy saving diagnostic apparatus 1 via the air conditioning communication network NT.
- the blower fan and the temperature sensor can send operation information and room temperature information to the air conditioning communication network NT, respectively.
- the parameter acquisition unit 133 can acquire parameters such as the operation information of the blower fan and the indoor temperature information of the temperature sensor from the air conditioning communication network NT through the communication unit 16, and the second comparison period specifying unit 134b uses these parameters. be able to.
- the power consumption calculation unit 132 calculates the power consumption based on current value data acquired from, for example, ammeters inserted individually in the power supply lines to the outdoor unit 103 or the indoor unit 104, for example. You may do. According to this configuration, since the power consumption amount in the outdoor unit 103 and the power consumption amount in the indoor unit 104 are calculated separately, the diagnosis of energy saving is individually performed for each of the outdoor unit 103 and the indoor unit 104. be able to.
- the power consumption amount calculation unit 132 may obtain the power consumption amount in the air conditioner and store it in the power consumption amount storage unit 172 based on the operating condition of the air conditioner, for example. . For example, it is assumed that a plurality of operation modes are provided in the air conditioner. On the other hand, it is assumed that the power consumption amount calculation unit 132 holds a power consumption amount table in which a plurality of types of operation modes and average power consumption amounts corresponding to the respective operation modes are registered. In this case, the power consumption calculation unit 132 acquires the operation mode of the air conditioner from the air conditioner through the air conditioning communication network NT, refers to the power consumption table, and average power consumption corresponding to the acquired operation mode. Can be stored in the power consumption storage unit 172.
- the parameter acquisition unit 133 acquires parameters from, for example, a sensor that measures temperature, humidity, carbon dioxide concentration, illuminance, and the like that is installed inside and outside the building H separately from the air conditioner. Also good.
- a sensor that measures temperature, humidity, carbon dioxide concentration, illuminance, and the like that is installed inside and outside the building H separately from the air conditioner.
- temperature information, humidity information, carbon dioxide concentration information, and illuminance information can be transmitted from each sensor to the air conditioning communication network.
- the parameter acquisition unit 133 can acquire parameters such as temperature information, humidity information, carbon dioxide concentration information, and illuminance information from the air conditioning communication network NT through the communication unit 16, and the second comparison period specifying unit 134b uses these parameters. can do.
- the parameter acquisition unit 133 acquires various parameters even when the air conditioner does not have a function of sending information acquired by each sensor provided in the air conditioner to the air conditioning communication network NT. can do.
- the parameter acquisition unit 133 may acquire, for example, public information of the Japan Meteorological Agency through the Internet, for example.
- the parameter acquisition unit 133 can acquire, for example, meteorological information (for example, outside air temperature) disclosed on the homepage of the Japan Meteorological Agency and store the acquired weather information in the parameter storage unit 173.
- meteorological information for example, outside air temperature
- the first comparison period specifying unit 134a may specify the first comparison period from the post-introduction period
- the second comparison period specifying unit 134b may specify the second comparison period from the pre-introduction period.
- a time measuring unit that measures a constant time every day is provided, and in the period after introduction, each time the time measuring unit measures a certain time, the first comparison period specifying unit 134a The configuration may be such that one day immediately before is specified as the first comparison period.
- the second comparison period specifying unit 134b specifies the second comparison period similar to the first comparison period from the pre-introduction period, and the energy saving diagnosis unit 135 performs the energy saving diagnosis. Good.
- the energy saving diagnostic apparatus 1 can be realized by using a normal computer system without using a dedicated system.
- a program for executing the above operation is stored in a non-transitory recording medium (CD-ROM or the like) that can be read by a computer system and distributed.
- You may comprise the energy saving diagnostic apparatus 1 which performs the above-mentioned process by installing in a system.
- the method of providing the program to the computer is arbitrary.
- the program may be uploaded to a bulletin board (BBS) on a communication line and distributed to a computer via the communication line.
- BSS bulletin board
- the computer activates this program and executes it like other applications under the control of the OS.
- a computer functions as the energy-saving diagnostic apparatus 1 which performs the above-mentioned process.
- the present invention can be suitably used for an energy saving diagnosis apparatus, an energy saving diagnosis method, a program therefor, and the like for diagnosing the degree of energy saving before and after introducing energy saving control to an air conditioner.
- 1 energy-saving diagnostic device 6 power supply, 11 input unit, 12 output unit, 13 control unit, 13a timer, 14 ROM, 15 RAM, 16 communication unit, 17 storage device, 31 outdoor temperature sensor, 32 outdoor humidity sensor, 33 Outdoor illuminance sensor, 34 outdoor unit communication unit, 35 compressor, 36 outdoor unit control unit, 41 indoor unit storage unit, 42 suction temperature sensor, 43 indoor unit communication unit, 44 indoor unit control unit, 51 indoor temperature sensor, 52 indoors Humidity sensor, 53 Indoor illuminance sensor, 54 Remote control communication unit, 55 Operation unit, 56 Remote control unit, 103, 203 Outdoor unit, 104, 204 Indoor unit, 105, 205 Remote control, 107, 207, 307 Ammeter, 131 Current value Acquisition unit, 132 Power consumption calculation unit, 133 Parameter acquisition unit, 134 1st comparison period specification part, 134b 2nd comparison period specification part, 135 Energy saving diagnosis part, 136 Result output part, 137 Coefficient setting part, 138 Diagnosis period acquisition part, 171 Current value storage part, 172 Power consumption
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Abstract
Description
空気調和機により消費された電力量が算出される複数の算出期間のそれぞれにおける消費電力量を記憶する消費電力量記憶部と、
前記複数の算出期間のそれぞれにおける、前記空気調和機の環境または運転状況を示すパラメータを記憶するパラメータ記憶部と、
前記空気調和機に省エネルギ制御が導入される前の期間である導入前期間と、前記空気調和機に省エネルギ制御が導入された後の期間である導入後期間と、のうちのいずれか一方の期間を構成する複数の第1期間の中から第1比較対象期間を特定する第1比較対象期間特定部と、
前記パラメータ記憶部に記憶されたパラメータに基づいて、前記導入前期間と前記導入後期間とのうちの他方の期間を構成する複数の第2期間のそれぞれを比較対象候補期間としたときに、前記第1比較対象期間と前記第1比較対象期間の直前または直後の第1期間とを含む第1パラメータ比較期間におけるパラメータと、前記比較対象候補期間と前記比較対象候補期間の直前または直後の第2期間とを含む第2パラメータ比較期間におけるパラメータと、の類似度が最も高くなる比較対象候補期間を第2比較対象期間として特定する第2比較対象期間特定部と、
前記消費電力量記憶部に記憶された消費電力量に基づいて、前記第1比較対象期間における消費電力量と前記第2比較対象期間における消費電力量とを求め、前記第1比較対象期間における消費電力量と前記第2比較対象期間における消費電力量とに基づいて、省エネルギ制御の導入による省エネルギ化の程度を診断する省エネルギ化診断部と、を備える。
消費電力量算出部132は、電流値記憶部171に空気調和機の系統G1、G2、G3に対応づけて記憶された電流値データを、電流値記憶部171から取得する。また、消費電力量算出部132は、空気調和機の系統G1、G2、G3毎に個別に消費電力量を算出する。
S=w00|a00(T)-b00(U)|+w10|a10(T)-b10(U)|+・・・+wNM|aNM(T)-bNM(U)|・・・式(1)
ここで、Sは非類似度、aij(T)(i=0、1、2、・・・、N;j=0、1、2、・・・、M)は特定した第1パラメータ比較期間のパラメータ、bi(U)(i=1、2、・・・、N;j=0、1、2、・・・、M)は特定した第2パラメータ比較期間のパラメータ、wij(i=0、1、2、・・・、N;0、1、2、・・・、M)は重み付け係数である。各重み付け係数wij(i=1、2、・・・、N;j=0、1、2、・・・、M)の値は、それらの総和が一定値(例えば「1」)となるように選択されている。iは、パラメータの種類を識別する識別番号である。Nは、パラメータの種類の数に相当する。jは、第1パラメータ比較期間または第2パラメータ比較期間内における相対的な時刻を識別する識別番号である。jは、第1パラメータ比較期間または第2パラメータ比較期間をM等分して時系列に並べた場合の各期間の先頭からの順番に相当する。また、Tは、第1比較期間、Uは、比較対象候補期間を示す。非類似度Sが小さいほど、パラメータの類似度は高くなる。
Claims (5)
- 空気調和機により消費された電力量が算出される複数の算出期間のそれぞれにおける消費電力量を記憶する消費電力量記憶部と、
前記複数の算出期間のそれぞれにおける、前記空気調和機の環境または運転状況を示すパラメータを記憶するパラメータ記憶部と、
前記空気調和機に省エネルギ制御が導入される前の期間である導入前期間と、前記空気調和機に省エネルギ制御が導入された後の期間である導入後期間と、のうちのいずれか一方の期間を構成する複数の第1期間の中から第1比較対象期間を特定する第1比較対象期間特定部と、
前記パラメータ記憶部に記憶されたパラメータに基づいて、前記導入前期間と前記導入後期間とのうちの他方の期間を構成する複数の第2期間のそれぞれを比較対象候補期間としたときに、前記第1比較対象期間と前記第1比較対象期間の直前または直後の第1期間とを含む第1パラメータ比較期間におけるパラメータと、前記比較対象候補期間と前記比較対象候補期間の直前または直後の第2期間とを含む第2パラメータ比較期間におけるパラメータと、の類似度が最も高くなる比較対象候補期間を第2比較対象期間として特定する第2比較対象期間特定部と、
前記消費電力量記憶部に記憶された消費電力量に基づいて、前記第1比較対象期間における消費電力量と前記第2比較対象期間における消費電力量とを求め、前記第1比較対象期間における消費電力量と前記第2比較対象期間における消費電力量とに基づいて、省エネルギ制御の導入による省エネルギ化の程度を診断する省エネルギ化診断部と、を備える、
省エネルギ化診断装置。 - 前記パラメータ記憶部は、前記複数の算出期間のそれぞれにおける、複数個のパラメータを記憶し、
前記第2比較対象期間特定部は、
前記複数個のパラメータのそれぞれについて、前記第1パラメータ比較期間におけるパラメータと前記第2パラメータ比較期間におけるパラメータとの差分にパラメータ毎の重み付け係数を乗じた値を求め、
前記複数個のパラメータのそれぞれについて求められた値の合計値が最も小さい比較対象候補期間を前記第2比較対象期間として特定する、
請求項1に記載の省エネルギ化診断装置。 - 前記パラメータ毎の重み付け係数を設定する係数設定部を更に備え、
前記係数設定部は、
前記複数の第1期間のうち消費電力量の差分が最小である2つの第1期間、または、前記複数の第2期間のうち消費電力量の差分が最小である2つの第2期間を特定し、
前記複数個のパラメータのそれぞれについて、前記2つの第1期間のうちの一方におけるパラメータと前記2つの第1期間のうちの他方におけるパラメータとの差分、または、前記2つの第2期間のうちの一方におけるパラメータと前記2つの第2期間のうちの他方におけるパラメータとの差分に前記パラメータ毎の重み付け係数を乗じた値を求めたときに、前記複数個のパラメータのそれぞれについて求められた値の合計値が最小となるように、前記パラメータ毎の重み付け係数を設定する、
請求項2に記載の省エネルギ化診断装置。 - 空気調和機により消費された電力量が算出される複数の算出期間のそれぞれにおける消費電力量を記憶する消費電力量記憶部と、
前記複数の算出期間のそれぞれにおける、前記空気調和機の環境または運転状況を示すパラメータを記憶するパラメータ記憶部と、に記憶された情報に基づいて、省エネルギ制御の導入による省エネルギ化の程度を診断する方法であって、
前記空気調和機に省エネルギ制御が導入される前の期間である導入前期間と、前記空気調和機に省エネルギ制御が導入された後の期間である導入後期間と、のうちのいずれか一方の期間を構成する複数の第1期間の中から第1比較対象期間を特定するステップと、
前記パラメータ記憶部に記憶されたパラメータに基づいて、前記導入前期間と前記導入後期間とのうちの他方の期間を構成する複数の第2期間のそれぞれを比較対象候補期間としたときに、前記第1比較対象期間と前記第1比較対象期間の直前または直後の第1期間とを含む第1パラメータ比較期間におけるパラメータと、前記比較対象候補期間と前記比較対象候補期間の直前または直後の第2期間とを含む第2パラメータ比較期間におけるパラメータと、の類似度が最も高くなる比較対象候補期間を第2比較対象期間として特定するステップと、
前記消費電力量記憶部に記憶された消費電力量に基づいて、前記第1比較対象期間における消費電力量と前記第2比較対象期間における消費電力量とを求め、前記第1比較対象期間における消費電力量と前記第2比較対象期間における消費電力量とに基づいて、省エネルギ制御の導入による省エネルギ化の程度を診断するステップと、を含む、
省エネルギ化診断方法。 - コンピュータを、空気調和機により消費された電力量が算出される複数の算出期間のそれぞれにおける消費電力量と、前記複数の算出期間のそれぞれにおける、前記空気調和機の環境または運転状況を示すパラメータと、に基づいて、省エネルギ制御の導入による省エネルギ化の程度を診断する装置として機能させるためのプログラムであって、
コンピュータを、
前記空気調和機に省エネルギ制御が導入される前の期間である導入前期間と、前記空気調和機に省エネルギ制御が導入された後の期間である導入後期間と、のうちのいずれか一方の期間を構成する複数の第1期間の中から第1比較対象期間を特定する第1比較対象期間特定部、
前記導入前期間と前記導入後期間とのうちの他方の期間を構成する複数の第2期間のそれぞれを比較対象候補期間としたときに、前記第1比較対象期間と前記第1比較対象期間の直前または直後の第1期間とを含む第1パラメータ比較期間におけるパラメータと、前記比較対象候補期間と前記比較対象候補期間の直前または直後の第2期間とを含む第2パラメータ比較期間におけるパラメータと、の類似度が最も高くなる比較対象候補期間を第2比較対象期間として特定する第2比較対象期間特定部、
前記第1比較対象期間における消費電力量と前記第2比較対象期間における消費電力量とを求め、前記第1比較対象期間における消費電力量と前記第2比較対象期間における消費電力量とに基づいて、省エネルギ制御の導入による省エネルギ化の程度を診断する省エネルギ化診断部、
として機能させるプログラム。
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