JP6668010B2 - Air conditioning control device, air conditioning control method, and air conditioning control program - Google Patents

Description

  An embodiment of the present invention relates to an air conditioning control device, an air conditioning control method, and an air conditioning control program.

  BACKGROUND ART Conventionally, there is an air conditioning control device that controls a space to be controlled by controlling an air conditioning device using a comfort priority mode in which comfort is prioritized or an economy priority mode in which economy is prioritized. In this air conditioning control device, for example, during cooling, the upper limit temperature in the economy priority mode is set higher than the upper limit temperature in the comfort priority mode. However, in the conventional apparatus, there is a case where the realization of the comfort with respect to the cost is not sufficient.

Japanese Patent No. 5504372

  An object of the present invention is to provide an air-conditioning control device, an air-conditioning control method, and an air-conditioning control program that can achieve comfort with respect to cost.

  The air-conditioning control device according to the embodiment includes an environment information acquisition unit, a target information acquisition unit, and a control amount determination unit. The environment information acquisition unit acquires environment information on a space where an air conditioner to be controlled is installed. The information acquisition unit acquires an upper limit value and a lower limit value of a comfort index different from temperature and humidity. The control amount determining unit determines a control amount to be given to the air conditioner based on the environment information acquired by the environment information acquiring unit and the upper limit and the lower limit acquired by the information acquiring unit.

FIG. 1 is a diagram for explaining an air conditioning control system 1. The figure which shows the structure of the apparatus sensor group 20. FIG. 2 is a block diagram showing a functional configuration of the air conditioning control device 60. The figure which shows an example of the PMV table 65. FIG. 7 is a diagram showing an example of an interface image IM displayed on the output device 52 by the user input / output unit 62 based on a PMV table 65. The figure which shows an example of the calculation map 69. 5 is a flowchart showing a flow of processing executed by the air conditioning control device 60. The figure which shows an example of the parameter map 69-1. The figure which shows an example of PMV calculated by the condition calculation part 66 at the time of cooling operation. The figure which shows an example of PMV calculated by the condition calculation part 66 at the time of heating operation. The figure which shows the structure of the apparatus sensor group 20A of 4th Embodiment. The figure which shows the control target line TL5 of PMV calculated by the condition calculation part 66 of 4th Embodiment. The figure which shows the control target line TL6 of PMV calculated by the condition calculation part 66 of 5th Embodiment. The conceptual diagram of a control schedule table.

  Hereinafter, an air conditioning control system including an air conditioning control device, an air conditioning control method, and an air conditioning control program according to an embodiment will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a diagram for describing the air conditioning control system 1. The air conditioning control system 1 includes, for example, controllers 10-1 to 10-n, device sensor groups 20-1 to 20-n, an input device 50, an output device 52, and an air conditioning control device 60. Hereinafter, when the controllers 10-1 to 10-n are not distinguished, they are referred to as controllers 10. Hereinafter, when the device sensor groups 20-1 to 20-n are not distinguished, they are referred to as device sensor groups 20. Communication via a dedicated line is performed between the controller 10 and the air conditioning control device 60 and between the air conditioning control device 60 and the input device 50 or the output device 52. Communication between the controller 10 and the air-conditioning control device 60 and between the air-conditioning control device 60 and the input device 50 or the output device 52 may be performed via a network. The network includes, for example, a WAN (Wide Area Network), a VPN (Virtual Private Network), and a LAN (Local Area Network).

  The controller 10 is a control device including a processor such as a CPU (Central Processing Unit). The controller 10 acquires the control target value calculated by the air conditioning control device 60, and controls the device sensor group 20 based on the acquired control target value. The control target values are, for example, the indoor temperature set value of the air conditioner and the supply air temperature set value of the outside air conditioner.

  The input device 50 receives the operation of the operator, and outputs a signal corresponding to the received operation to the air conditioning control device 60. The input device 50 may include a dedicated key, a dial switch, a mouse, a touch pad, a keyboard, and the like. The output device 52 is, for example, an LCD (Liquid Crystal Display) or an organic EL (Electroluminescence) display device. The output device 52 displays an image indicating the control state of the device sensor group 20, an image including an icon for assisting the operation of the operator, and the like.

  FIG. 2 is a diagram illustrating a configuration of the device sensor group 20. The device sensor group 20 includes, for example, a device group controller 22, an air conditioner 30A, an air conditioner 30B, a heat source device 40A, a heat source device 40B, a temperature sensor 42, a humidity sensor 44, and a power meter 46. Hereinafter, when the air conditioner 30A and the air conditioner 30B are not distinguished, they are referred to as the air conditioner 30. When the heat source device 40A and the heat source device 40B are not distinguished, they are referred to as the heat source device 40. Communication between the device group controller 22, the air conditioner 30, the heat source device 40, the temperature sensor 42, the humidity sensor 44, and the wattmeter 46 is performed, for example, via a dedicated line.

  The device group controller 22 is a control device including a processor such as a CPU (Central Processing Unit). The device group controller 22 acquires a control target value of the device sensor group 20 from the controller 10 and controls each device or each sensor of the device sensor group 20 such as the air conditioner 30 based on the acquired control target value. The device group controller 22 acquires information output from each unit of the device sensor group 20, and outputs the acquired information to the controller 10 and the air conditioner control device 60.

  The air conditioner 30A includes an external air conditioner 32A and an air conditioner 34A. The air conditioner 30B includes an air conditioner 32B and an air conditioner 34B. Hereinafter, when the external control device 32A and the external control device 32B are not distinguished, they are referred to as the external control device 32, and when the air conditioners 34A and 34B are not distinguished, the air conditioner 34 is referred to. The external air conditioner 32 takes in outside air, adjusts the temperature of the taken-in outside air, and supplies the adjusted outside air to a space (target zone) to be controlled. The outside air conditioner 32 calculates the outside air introduction rate of the outside air taken into the target zone, and outputs the calculation result to the device group controller 22. The air conditioner 34 adjusts the temperature of the target zone to a predetermined temperature or the humidity to a predetermined humidity by exchanging heat between the air in the target zone and the outside air.

  The heat source device 40 is a device used by the air conditioner 30 to generate hot or cold air to be blown to the target zone. The heat source device 40 exchanges heat between the water in the pipe connected to the apparatus itself and the heat of the outside air via a refrigerant, for example, to cool the water in the pipe. The heat source device 40 detects, for example, the temperature of water in the pipe cooled by heat exchange (heat source cold water temperature), and outputs the detected temperature to the device group controller 22.

  The temperature sensor 42 detects the temperature of the outside air, and outputs the detected temperature of the outside air to the device group controller 22. The humidity sensor 44 detects the humidity of the outside air and outputs the detected humidity of the outside air to the device group controller 22. The power meter 46 calculates the amount of power consumed by the devices provided in the target zone, and outputs the calculated amount of power to the device group controller 22. The storage area of the device group controller 22 may store a preset pattern of the amount of consumed power. In this case, the device group sensor group 20 may omit the power meter 46.

  FIG. 3 is a block diagram illustrating a functional configuration of the air conditioning control device 60. The air conditioning control device 60 includes a user input / output unit 62, a calculation setting storage unit 64, a condition calculation unit 66, a calculation logic storage unit 68, an optimal calculation unit 70, a control input / output storage unit 72, a control input / output A part 74. Among these functional units, the condition calculating unit 66 and the optimal calculating unit 70 are software functional units that function when a processor such as a CPU included in the air-conditioning control device 60 executes a program stored in a program memory. The condition calculation unit 66 and the optimum calculation unit 70 may be hardware function units such as an LSI (Large Scale Integration) and an ASIC (Application Specific Integrated Circuit). The calculation setting storage unit 64, the calculation logic storage unit 68, and the control input / output storage unit 72 include a random access memory (RAM), a hard disk drive (HDD), a flash memory, and an electrically erasable programmable read-only (EEPROM). This is realized by a readable / writable volatile or nonvolatile storage device such as a memory.

  The user input / output unit 62 is a communication interface for communicating with the input device 50 and the output device 52. The user input / output unit 62 acquires a signal input to the input device 50, and stores information corresponding to the acquired signal in the calculation setting storage unit 64. The user input / output unit 62 acquires, for example, a later-described PMV (Predicted Mean Vote), a PMV correction value, and the like, which are input to the input device 50 by a user, and acquires the acquired target PMV, a target PMV correction value, and the like. Is stored in the calculation setting storage unit 64. Further, the user input / output unit 62 outputs information stored in the calculation setting storage unit 64 or the control input / output unit 72 to the output device 52 according to the signal output from the input device 50.

  The calculation setting storage unit 64 stores a PMV table 65. The PMV table 65 is a table in which PMVs and PMV correction values are associated with each other for each time. PMV is an index of thermal sensation felt by humans. When the PMV becomes large, the human tends to feel hot, and when the PMV becomes small (negative), the human tends to feel cold. Also, when the PMV is zero, humans feel comfortable or neither hot nor cold. The range of comfortable PMV for humans is from minus 0.5 to plus 0.5.

  FIG. 4 is a diagram illustrating an example of the PMV table 65. The PMV table 65 calculates the PMV using the identification number of each record, the control start time, the control end time, the PMV energy saving correction amount, a calculation cycle for calculating the target control amount, and the PMV energy saving correction amount. A correction time, a target PMV range that is a target PMV range, and the like are stored in association with each other. The PMV energy saving correction amount is a correction amount for correcting the target PMV. When the air conditioner 34 is controlled using the corrected PMV obtained by adding the PMV energy saving correction amount to the target PMV range, the power consumed by the air conditioner 34 is smaller than when the air conditioner 34 is controlled using the target PMV. Become. In the target PMV range shown in FIG. 4, a negative value (minus 0.5) PMV is a value adopted during heating, and a positive value (plus 0.5) PMV is a value adopted during heating. It is. Further, the target PMV or the corrected PMV may be set in the PMV table 65 in advance.

  The PMV table 65 is stored in the calculation setting storage unit 64 based on, for example, information input by the input device 50. Further, the PMV table 65 is stored in the calculation setting storage unit 64 in association with each target zone or each air conditioner.

  FIG. 5 is a diagram illustrating an example of the interface image IM displayed on the output device 52 by the user input / output unit 62 based on the PMV table 65. As shown in the area A1, the interface image IM displays the identification number of each record, the control start time, the control end time, and the PMV energy saving correction amount in association with each other. In the area A2, an image for changing the setting of each item described above is displayed. The image in the area A2 corresponds to the record selected by the user's operation input to the input device 50. In the area A2, for example, a start time that is a time for starting the control of the air conditioner 34 and an end time that is a time for ending the control of the air conditioner 34 are displayed. In addition, the control PMV energy saving correction amount, the control cycle corresponding to the selected record, and the correction time corresponding to the selected record are displayed in association with each other. The value of each of the items displayed in the area A2 is changed by a user's operation input of the input device 50. For example, in the case of the cooling operation, when the user changes the PMV energy saving correction amount to a value larger than the set value, or when the user changes the correction time to a longer time than the set value, the air conditioner 34 consumes. Power is further reduced.

  In the area A3, the control target PMV is displayed as a virtual control line in a line graph. In the figure, a control target line TL1 is a control target line for the cooling operation. The control target line TL1 is a virtual control line on which a target PMV (lower limit) and a corrected PMV (upper limit) appear. In the figure, a control target line TL2 is a control target line for the heating operation. The control target line TL2 is a virtual control line where a target PMV (upper limit) and a corrected PMV (lower limit) appear. The vertical axis of the line graph indicates PMV, and the horizontal axis indicates time. In the example shown in the area A3, the range of the target PMV is set from 0.5 to −0.5, and the cycle of calculating the control target value for approaching the target PMV is every 10 minutes. Is set.

  The air-conditioning control device 60 according to the present embodiment controls the air-conditioning device 30 so as to alternately change the indoor PMV between the comfort mode and the energy-saving mode while keeping the comfort perceived by a person in the target zone constant. For example, in the case of the cooling operation, as shown by the control target line TL1, the comfort mode in which the PMV is controlled by the target PMV and the energy saving mode in which the target PMV is increased by the correction value are alternately repeated. In this case, when stepping down from the PMV increased by the correction value to the target PMV, the sense of cold overshoots, and a person feels more comfortable than the actual PMV. Further, for example, in the case of the heating operation, as shown by the control target line TL2, the comfort mode in which the PMV is controlled by the target PMV and the energy saving mode in which the target PMV is reduced by the correction value are alternately repeated. In this case, when returning from the PMV reduced by the correction value to the target PMV, the sense of warmth overshoots, and a person feels more comfortable than the actual PMV. As described above, the air-conditioning control device 60 alternately repeats the comfort mode and the energy-saving mode, thereby realizing control of the air-conditioning device 30 that balances the suppression of energy consumption and the comfort.

  The condition calculation unit 66 calculates the PMV for each time with reference to the PMV table 65 stored in the calculation setting storage unit 64. The condition calculation unit 66 obtains, for example, a target PMV for a time to be controlled from the PMV table 65, and outputs the obtained PMV to the optimum calculation unit 70. Further, when the PMV energy saving correction amount is set for the time to be controlled, the condition calculating unit 66 acquires the target PMV and the PMV energy saving correction amount for the time to be controlled from the PMV table 65, for example, and obtains the acquired target The PMV energy saving correction amount is added to the PMV and output to the optimum calculation unit 70. When the target PMV range is set in the calculation setting storage unit 64, the condition calculating unit 66 may set the maximum value of the target PMV range as the target PMV.

  The calculation logic storage unit 68 and the optimum calculation unit 70 according to the first embodiment have a functional configuration when the air conditioning control system 1 performs a cooling operation. The calculation logic storage unit 68 stores a calculation map 69 used by the optimum calculation unit 70 to calculate a control target value given to the air conditioner 30. FIG. 6 is a diagram illustrating an example of the calculation map 69. Calculation map 69 is an example corresponding to target PMV “3”. The control target value for the input data for each of the plurality of target PMVs is stored in the calculation map 69 in advance. The input data is environmental information on the space where the air conditioner 30 to be controlled is installed, and is based on the outside air introduction rate calculated by the outside air conditioner 32, the outside air temperature detected by the temperature sensor 42, and the humidity sensor 44. The detected humidity, the electric energy calculated by the wattmeter 46, and the heat source cold water temperature detected by the heat source device 40. In addition, the control target values are a room temperature set value set for the air conditioner 34 and a supply air temperature set value set for the outside air conditioner 32.

  The optimum calculation unit 70 refers to the calculation map 69, and based on the input data acquired from the control input / output storage unit 72 and the PMV calculated by the condition calculation unit 66, calculates the room temperature set value and the supply air temperature set value. calculate. The optimum calculation unit 70 stores the calculated room temperature set value and the supply air temperature set value in the control input / output storage unit 72.

  The control input / output storage unit 72 stores the room temperature set value and the supply air temperature set value calculated by the optimum calculation unit 70 in association with time. The control input / output storage unit 72 stores the input data output by the control input / output unit 74.

  The control input / output unit 74 acquires the input data output from the controller 10 and stores the acquired input data in the control input / output storage unit 72. The control input / output unit 74 outputs the room temperature set value and the supply air temperature set value stored in the control input / output storage unit 72 to the controller 10. The control input / output unit 74 may output the room temperature set value and the supply air temperature set value when the optimum calculation unit 70 calculates (real-time processing) or may perform batch processing.

  FIG. 7 is a flowchart illustrating a flow of a process executed by the air conditioning control device 60. First, the condition calculation unit 66 determines whether the calculation start time has elapsed (step S100). The condition calculation unit 66 obtains the calculation cycle set in the PMV table 65, and determines whether a time corresponding to the obtained calculation cycle has elapsed. Next, the condition calculation unit 66 determines whether there is an air conditioner 30 for which the calculation of the control target value has not been determined (step S102). If there is no air conditioner 30 for which the calculation of the control target value has not been determined, the condition calculation unit 66 waits for a predetermined time, and returns to the process of step S100 (step S114).

  If there is an air conditioner 30 for which the calculation of the control target value has not been determined, the condition calculation unit 66 selects the target air conditioner 30 (step S104). Next, the condition calculation unit 66 acquires the operation mode (cooling operation or heating operation) of the selected air conditioner 30 and the input data corresponding to the air conditioner 30 stored in the control input / output storage unit 72 (step S106). . Next, the condition calculation unit 66 calculates a PMV which is a condition applied to the calculation (Step S108).

  Next, the optimal calculation unit 70 calculates a control target value based on the input data obtained in step S106 and the PMV calculated in step S108 (step S110). Next, the optimal calculation unit 70 outputs the control target value calculated in step S110 to the controller 10 (step S112). Thus, the processing of this flowchart ends.

  As described above, the optimum calculation unit 70 calculates the target control amount using the target PMV and the correction PMV, which are the two pieces of target information calculated by the condition calculation unit 66, alternately, and uses the calculated target control amount as the air conditioner. In the case of outputting to the air conditioner 30, the optimal calculation unit 70 calculates the target control amount using only the target PMV, and suppresses the energy consumption and the cost as compared with the case where the calculated target control amount is output to the air conditioner 30. be able to. In the case where the optimum calculation unit 70 calculates the target control amount by using the target PMV and the correction PMV calculated by the condition calculation unit 66 alternately and outputs the calculated target control amount to the air conditioner 30, the optimum calculation is performed. The comfort can be improved as compared with the case where the unit 70 calculates the target control amount using only the corrected PMV and outputs the calculated target control amount to the air conditioner 30.

  According to the air-conditioning control device 60 of the first embodiment described above, the condition calculation unit 66 calculates the PMV used to calculate the control target value with reference to the PMV table 65. In addition, the optimal calculation unit 70 calculates the control target value based on the input data and the PMV calculated by the condition calculation unit 66, thereby realizing the comfort with respect to cost. Control can be performed.

(Second embodiment)
Hereinafter, a second embodiment will be described. The second embodiment is control when the air conditioner 30 performs a heating operation. In this case, the method by which the optimum calculation unit 70 calculates the control target value is different from that of the first embodiment. Hereinafter, the difference will be mainly described.

  The calculation setting storage unit 64 stores, in addition to the PMV table 65, the amount of clothes and the amount of activity of the person present in the target zone. The amount of clothing and the amount of activity are stored in the calculation setting storage unit 64 when the user performs an operation input to the input device 50.

  The condition calculation unit 66 calculates the PMV for each time with reference to the PMV table 65 stored in the calculation setting storage unit 64. The condition calculation unit 66 obtains, for example, a target PMV for a time to be controlled from the PMV table 65, and outputs the obtained PMV to the optimum calculation unit 70. The condition calculation unit 66 obtains the amount of clothing and activity of the person present in the target zone stored in the calculation setting storage unit 64, and calculates the optimal amount of clothing and activity of the person existing in the obtained target zone. Output to When the target PMV range is set in the calculation setting storage unit 64, the condition calculating unit 66 may set the minimum value of the target PMV range as the target PMV.

  The calculation logic storage unit 68 stores a parameter map 69-1. The parameter map 69-1 is a map in which the values of the parameters a0 to a6 are associated with each combination of the clothing amount and the activity amount. FIG. 8 is a diagram illustrating an example of the parameter map 69-1. The clothing amount is a human clothing state, and for example, 0 to 3 is set. The clothing amount 0 indicates spring and autumn clothing, the clothing amount 1 indicates summer clothing, the clothing amount 2 indicates winter clothing, and the clothing amount 3 indicates cool biz clothing. The activity amount is a human activity amount, and for example, 0 to 2 is set. The activity amount 0 indicates a state of sleeping, the activity amount 1 indicates a state of office work, and the activity amount 2 indicates a walking state.

  The calculation logic storage unit 68 stores a logic (for example, equation (1) described later) for calculating a room temperature set value that is a control target value, and an average radiation temperature map. The average radiation temperature map is a map in which the average radiation temperature is associated with the outside air temperature and the room temperature of the target zone. The average radiation temperature in the average radiation temperature map is a normalized value.

The optimum calculation unit 70 calculates the room temperature set value by, for example, Expression (1). In the equation, tri is a room temperature set value, and PMV is a target PMV. a0 to a6 are values obtained from the parameter map 69-1, and Trmt is a value obtained from the average radiation temperature map. Rhur is a normalized value of the indoor humidity of the target zone. For example, when the control input / output unit 74 stores the room humidity in the control input / output storage unit 72, the room temperature of the target zone is stored as a normalized value. In addition, the optimum calculation unit 70 calculates a0 to a6 based on the amount of clothing and activity of the person present in the target zone acquired from the condition calculation unit 66 with reference to the parameter map 69-1. The optimal calculation unit 70 calculates the average radiation temperature based on the indoor temperature acquired from the indoor temperature sensor (not shown) of the target zone and the outside air temperature acquired from the controller 10 with reference to the average radiation temperature map. The parameters a0 to a6, Trmt, and Rhur are environmental information relating to the space where the air conditioner 30 to be controlled is installed.

  The optimum calculating unit 70 outputs the calculated room temperature set value to the controller 10 based on, for example, Equation (1). Thereby, the air conditioner 30 is controlled based on the room temperature set value corresponding to the target PMV output from the controller 10.

  According to the air conditioning control device 60 of the second embodiment described above, the condition calculation unit 66 calculates the PMV used to calculate the control target value with reference to the PMV table 65. In addition, the optimal calculation unit 70 calculates the control target value based on the input data, the parameter calculated by the condition calculation unit 66, and the PMV, thereby realizing comfort with respect to cost. 30 controls can be performed.

(Third embodiment)
Hereinafter, a third embodiment will be described. In the first embodiment and the second embodiment, the air conditioner 30 is controlled so that the target PMV and the correction PMV have a step shape. However, in the third embodiment, the air conditioning controller 60A controls the target PMV Is changed to the corrected PMV, the air conditioner 30 is controlled so that the PMV changes with a predetermined inclination. Hereinafter, the difference will be mainly described.

  The condition calculation unit 66 calculates a target PMV and a corrected PMV based on the PMV table 65. When controlling the air conditioner 30 from the target PMV to the correction PMV, the condition calculation unit 66 calculates the PMV in a time series such that the PMV changes with a predetermined inclination.

  FIG. 9 is a diagram illustrating an example of the PMV calculated by the condition calculation unit 66 during the cooling operation. TL3 is a control target line of the PMV calculated by the condition calculation unit 66. The vertical axis indicates PMV, and the horizontal axis indicates time. In the cooling operation, when changing the PMV from the target PMV (g in the figure) to the correction PMV (r in the figure), the condition calculation unit 66 sets the PMV control target line TL3 so that the PMV has a predetermined slope. Is calculated. On the other hand, when changing the PMV from the corrected PMV (r in the figure) to the target PMV (g in the figure), the condition calculation unit 66 determines that the control target line TL3 of the PMV has no slope (parallel to the vertical axis). ) Is calculated. In this way, by making the rise of the PMV gentle, it is possible to prevent the person from feeling the heat, and by making the fall of the PMV steep, the person is more comfortable (cold) than the actual change in the PMV. Can be felt.

  FIG. 10 is a diagram illustrating an example of the PMV calculated by the condition calculation unit 66 during the heating operation. TL4 is a control target line of the PMV calculated by the condition calculation unit 66. The vertical axis indicates PMV, and the horizontal axis indicates time. In the heating operation, when changing the PMV from the target PMV (r1 in the figure) to the correction PMV (g1 in the figure), the condition calculation unit 66 sets the PMV control target line TL3 so that the PMV has a predetermined slope. Is calculated. On the other hand, when changing the PMV from the corrected PMV (g1 in the figure) to the target PMV (r1 in the figure), the condition calculation unit 66 determines that the control target line TL4 of the PMV does not have an inclination (parallel to the vertical axis). ) Is calculated. In this way, by making the PMV decrease gently, the person is prevented from feeling cold, and by increasing the PMV steeply, the person feels more comfortable (warmth) than the actual change in PMV. Can be done.

  When changing from the target PMV to the correction PMV, the condition calculation unit 66 calculates the PMV at predetermined time intervals T0 (for example, from T1 to T3) as shown in FIG.

  According to the air-conditioning control device 60 of the third embodiment described above, when the condition calculation unit 66 controls the target PMV to the correction PMV, the condition calculation unit 66 calculates the PMV so that the PMV changes with a predetermined inclination. Thus, the effects of the first embodiment and the second embodiment can be achieved, and the comfort can be further improved.

(Fourth embodiment)
Hereinafter, a fourth embodiment will be described. The air conditioning control system 1 according to the fourth embodiment includes a motion sensor 48, and the air conditioning control device 60A controls the air conditioner 30 using the corrected PMV based on a detection result detected by the motion sensor 48. The difference from the first embodiment is that the time is changed. Hereinafter, the difference will be mainly described.

  FIG. 11 is a diagram illustrating a configuration of a device sensor group 20A according to the fourth embodiment. The device sensor group 20A further includes a human sensor 48. The human sensor 48 is installed in the target zone. The human sensor 48 includes, for example, an imaging unit, and detects a person present in the target zone based on an image captured by the imaging unit. The human sensor 48 acquires the captured images in chronological order. The human sensor 48 extracts a difference between the acquired images, and superimposes the extracted images to generate a difference image. The human sensor 48 accumulates the difference images, and extracts a feature amount representing a change in a time series of a space corresponding to the imaging target based on the accumulated difference images. The human sensor 48 calculates the number of occupants present in the target zone based on the extracted feature amount and an identification model used for identifying a person. The human sensor 48 outputs to the device group controller 22 the number of persons (for example, occupants) existing in the target zone (for example, the room), which are the calculation results.

  The condition calculation unit 66 calculates a time for controlling the air conditioner 30 using the corrected PMV based on the number of occupants detected by the human sensor 48 and the PMV table 65. FIG. 12 is a diagram illustrating the control target line TL5 of the PMV calculated by the condition calculating unit 66 according to the fourth embodiment. If the number of occupants detected by the human sensor 48 is smaller than the first number, the condition calculation unit 66 sets the time for controlling the air conditioner 30 using the corrected PMV as indicated by P1 in the figure. A certain correction time is calculated to be longer than a preset correction time. If the number of occupants detected by the human sensor 48 is equal to or greater than the first number and equal to or less than the second number, the condition calculation unit 66 performs air conditioning using the corrected PMV as indicated by P2 in the figure. The time for controlling the device 30 is calculated as a preset correction time. Note that the second number is a value larger than the first number. When the number of occupants detected by the human sensor 48 is equal to or greater than the second number, the condition calculation unit 66 controls the air conditioner 30 using the corrected PMV as indicated by P3 in the figure. Is calculated to be shorter than the preset correction time.

  According to the air-conditioning control device 60 of the fourth embodiment described above, the condition calculating unit 66 variably sets the time for controlling the air-conditioning device 30 using the corrected PMV according to the number of people existing in the target zone. By doing so, the same effects as those of the first embodiment and the second embodiment can be obtained, and the economy and comfort can be improved.

(Fifth embodiment)
Hereinafter, a fifth embodiment will be described. The air conditioning control system 1 of the fifth embodiment includes a motion sensor 48, and the air conditioning control device 60A changes the value of the PMV energy saving correction amount based on the detection result detected by the motion sensor 48. This is different from the fourth embodiment. Hereinafter, the difference will be mainly described.

  The condition calculation unit 66 calculates the value of the PMV energy saving correction amount based on the number of occupants detected by the human sensor 48 and the PMV table 65. FIG. 13 is a diagram illustrating the control target line TL6 of the PMV calculated by the condition calculating unit 66 according to the fifth embodiment. When the number of occupants detected by the human sensor 48 is smaller than the first number, the condition calculation unit 66 sets the value of the PMV energy saving correction amount to a preset PMV energy saving value as shown at P4 in the figure. A value larger than the value of the correction amount (r in the figure) is calculated. If the number of occupants detected by the human sensor 48 is equal to or greater than the first number and equal to or less than the second number, the condition calculation unit 66 determines the value of the PMV energy saving correction amount as indicated by P5 in FIG. Is calculated as a preset value. Note that the second number is a value larger than the first number. If the number of occupants detected by the human sensor 48 is equal to or greater than the second number, the condition calculation unit 66 sets the value of the correction PMV to a preset value as shown at P6 in the figure. Calculate as a smaller value.

  According to the air-conditioning control device 60 of the fifth embodiment described above, the condition calculation unit 66 changes the value of the PMV energy saving correction amount according to the number of people existing in the room that is the target zone, The same effects as those of the first and second embodiments can be obtained, and the economy and comfort can be improved.

(Sixth embodiment)
Hereinafter, the sixth embodiment will be described. The air-conditioning control device 60B of the sixth embodiment determines whether to perform air-conditioning control of a target zone based on PMV or air-conditioning control of a target zone based on temperature based on a preset schedule. However, this is different from the first embodiment. Hereinafter, the difference will be mainly described.

  The condition calculation unit 66 determines whether to perform the air conditioning control of the target zone based on the PMV or the air conditioning control of the target zone based on the temperature based on the control schedule table stored in the calculation setting storage unit 64. . FIG. 14 is a conceptual diagram of the control schedule table. In the control schedule table, whether air conditioning control based on PMV or air conditioning control based on temperature is performed for each time zone is stored in association with each other. For example, in the control schedule table, a large number of people enter and leave the target zone, such as the office hours (for example, from 8:00 to 10:00), lunch breaks (from 12:00 to 13:00), and the leaving hours (from 17:00 to 19:00). For the time period, the information that the air conditioning control is performed based on the temperature is stored.

  The condition calculation unit 66 refers to the control schedule table and determines whether to perform the air conditioning control of the air conditioner 30 based on the PMV or to perform the air conditioning control based on the temperature set without using the PMV. The optimum calculation unit 70 calculates a control target value corresponding to the PMV calculated by the condition calculation unit 66 when the condition calculation unit 66 determines to perform the air conditioning control using the PMV, and calculates the calculated control target value. Is output to the controller 10.

  According to the air-conditioning control device 60 of the sixth embodiment described above, the condition calculation unit 66 performs air-conditioning control of the target zone based on the PMV based on a preset schedule, or performs target air conditioning control based on the temperature. Since it is determined whether to perform the air conditioning control of the zone, the effects of the first embodiment can be achieved, and the economy and comfort can be further improved.

  In this embodiment, the user input / output unit 62, the calculation setting storage unit 64, the condition calculation unit 66, the calculation logic storage unit 68, the optimum calculation unit 70, the control input / output storage unit 72, the control input / output Although the output unit 74 has been described as functioning as the air-conditioning control device 60, the above-described functional unit may be distributed to a plurality of devices. In this case, a plurality of devices including the above-described functional units function as one system, thereby realizing the same function as the air conditioning control device 60. In addition, a plurality of devices including the above-described functional units may realize functions similar to those of the air-conditioning control device 60 by communicating through a communication network such as a network.

  According to at least one embodiment described above, an environment information acquisition unit (70) for acquiring environment information on a space in which an air conditioner to be controlled is installed, and an upper limit of a comfort index different from temperature and humidity An information acquisition unit (66) for acquiring a value and a lower limit; an environment information acquired by the environment information acquisition unit; and an upper limit and a lower limit acquired by the information acquisition unit. By having the control amount determining unit (70) for determining the given control amount, it is possible to realize comfort with respect to cost.

  Although several embodiments of the present invention have been described, these embodiments are provided by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in other various forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Air-conditioning control system, 20 ... Equipment sensor group, 30 ... Air-conditioning equipment, 32 ... Outside air conditioner, 34 ... Air conditioner, 42 ... Temperature sensor, 44 ... Humidity sensor, 46 ... Wattmeter, 50 ... Input device, 52 ... Output device 60 Air conditioning control device 62 User input / output unit 64 Calculation setting storage unit 66 Condition calculation unit 68 Calculation logic storage unit 70 Optimal calculation unit 72 Control input / output storage unit 74 Control input / output unit

Claims (10)

An environment information acquisition unit that acquires environment information about a space in which an air conditioner to be controlled is installed and an operation mode indicating whether the air conditioner is in a cooling operation or a heating operation ,
An information acquisition unit that acquires one of the upper limit value and the lower limit value of the comfort index different from the temperature and humidity respectively associated with the two operation modes based on the operation mode; When,
Environment information acquired by the environment information acquisition unit, based on the upper limit and the lower limit obtained by the information acquisition unit, based on the control amount determination unit that determines the control amount given to the air conditioner,
With
The air conditioning control device, wherein the control amount determination unit determines a control amount to be given to the air conditioner based on a virtual control line in which the upper limit value and the lower limit value alternately appear at predetermined time intervals. An environmental information acquisition unit that acquires environmental information about a space where the air conditioner to be controlled is installed;
An information acquisition unit that acquires an upper limit and a lower limit of a comfort index different from temperature and humidity,
Environment information acquired by the environment information acquisition unit, based on the upper limit and lower limit acquired by the information acquisition unit, a control amount determination unit that determines a control amount given to the air conditioner,
A correction value for the lower limit and the lower limit, or a correction value for the upper limit and the upper limit, received by an operation input performed by a user, and the received correction value for the lower limit and the lower limit, or the upper limit And an input unit that stores a correction value for the upper limit value in a storage unit;
The upper limit value and the corrected upper limit value corrected by the correction value for the upper limit value stored in the storage unit, or the corrected lower limit value corrected by the correction value for the lower limit value and the lower limit value in association with time. An output unit to be displayed on a display unit in a graph,
Air conditioning control device comprising: The information obtaining unit obtains a correction value for the lower limit, and obtains an upper limit for the lower limit based on the lower limit and the correction value.
The air conditioning control device according to claim 1. The information acquisition unit acquires a correction value for the upper limit value, and acquires a lower limit value for the upper limit value based on the upper limit value and the correction value.
The air conditioning control device according to claim 1. When controlling the air conditioner using the upper limit, compared to the case where the air conditioner is controlled using the lower limit, the power consumption required for operating the air conditioner is less,
The air-conditioning control device according to any one of claims 1 to 4. When controlling the air conditioner using the lower limit value, compared to the case where the air conditioner is controlled using the upper limit value, the power consumption required for the air conditioner to operate is less,
The air-conditioning control device according to any one of claims 1 to 4. An environment information acquisition step of acquiring environment information and an operation mode indicating whether the air conditioner is in a cooling operation or a heating operation with respect to a space in which the air conditioner to be controlled is installed,
An information acquisition step of acquiring, based on the operation mode , one of an upper limit value and a lower limit value of a comfort index different from the temperature and humidity respectively associated with the two operation modes , based on the operation mode; When,
Based on the environment information acquired by the environment information acquisition step, the upper limit and the lower limit acquired by the information acquisition step, a control amount determination step of determining a control amount given to the air conditioner,
Has,
In the control amount determining step, an air conditioning control method for determining a control amount to be given to the air conditioner based on a virtual control line in which the upper limit and the lower limit alternately appear at predetermined time intervals. An environment information acquisition step of acquiring environment information about a space where the air conditioner to be controlled is installed;
An information acquisition step of acquiring an upper limit and a lower limit of a comfort index different from temperature and humidity,
The environment information acquired in the environment information acquisition step, based on the upper limit and the lower limit acquired in the information acquisition step, a control amount determination step to determine a control amount given to the air conditioner,
A correction value for the lower limit and the lower limit, or a correction value for the upper limit and the upper limit, received by an operation input performed by a user, and the received correction value for the lower limit and the lower limit, or the upper limit And an input step of storing a correction value for the upper limit value in the storage unit;
The upper limit value and the corrected upper limit value corrected by the correction value for the upper limit value stored in the storage unit, or the corrected lower limit value corrected by the correction value for the lower limit value and the lower limit value in association with time. An output step to be displayed on the display unit in a graph;
Air-conditioning control method comprising: On the computer,
An environment information acquisition step of acquiring environment information and an operation mode indicating whether the air conditioner is in a cooling operation or a heating operation with respect to a space in which the air conditioner to be controlled is installed,
An information acquisition step of acquiring, based on the operation mode , one of an upper limit value and a lower limit value of a comfort index different from the temperature and humidity respectively associated with the two operation modes , based on the operation mode; When,
Based on the environment information acquired by the environment information acquisition step, the upper limit and the lower limit acquired by the information acquisition step, a control amount determination step of determining a control amount given to the air conditioner,
And execute
An air conditioning control program for determining a control amount to be given to the air conditioner based on a virtual control line in which the upper limit value and the lower limit value alternately appear at predetermined time intervals in the control amount determining step. An environmental information acquiring step of acquiring environmental information on a space where the air conditioner to be controlled is installed in the computer;
An information acquisition step of acquiring an upper limit and a lower limit of a comfort index different from temperature and humidity,
The environment information acquired in the environment information acquisition step, based on the upper limit and the lower limit acquired in the information acquisition step, a control amount determination step to determine a control amount given to the air conditioner,
A correction value for the lower limit and the lower limit, or a correction value for the upper limit and the upper limit, received by an operation input performed by a user, and the received correction value for the lower limit and the lower limit, or the upper limit And an input step of storing a correction value for the upper limit value in the storage unit;
The upper limit value and the corrected upper limit value corrected by the correction value for the upper limit value stored in the storage unit, or the corrected lower limit value corrected by the correction value for the lower limit value and the lower limit value in association with time. An output step to be displayed on the display unit in a graph;
Air-conditioning control program for executing

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