EP2357419B1 - Ventilation control apparatus - Google Patents

Ventilation control apparatus Download PDF

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Publication number
EP2357419B1
EP2357419B1 EP11152737.0A EP11152737A EP2357419B1 EP 2357419 B1 EP2357419 B1 EP 2357419B1 EP 11152737 A EP11152737 A EP 11152737A EP 2357419 B1 EP2357419 B1 EP 2357419B1
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EP
European Patent Office
Prior art keywords
section
air
people
indoor space
sections
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EP11152737.0A
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German (de)
English (en)
French (fr)
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EP2357419A2 (en
EP2357419A3 (en
Inventor
Katsuji Yoshii
Shigeru Okada
Kazuhiro Sekiguchi
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Sanyo Electric Co Ltd
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Sanyo Electric Co Ltd
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Publication of EP2357419A2 publication Critical patent/EP2357419A2/en
Publication of EP2357419A3 publication Critical patent/EP2357419A3/en
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Publication of EP2357419B1 publication Critical patent/EP2357419B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/0001—Control or safety arrangements for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/46—Improving electric energy efficiency or saving
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/0001—Control or safety arrangements for ventilation
    • F24F2011/0002—Control or safety arrangements for ventilation for admittance of outside air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2120/00—Control inputs relating to users or occupants
    • F24F2120/10—Occupancy

Definitions

  • the present invention relates to a ventilation control apparatus.
  • Such an air conditioner is known that a signal from an image pickup device is processed so that the presence or absence of a human in each control area is determined, and a target temperature of a limit, beyond which people feel uncomfortable, is set in an area where no person is present, while a target temperature lower than a comfortable temperature is set with an air-blow speed being increased to an allowable limit in an area where a person is present (See Japanese Patent No. 3848786 , for example).
  • the present invention is made considering such circumstances and has an object to optimize the intake amount of the outside air.
  • a ventilation control apparatus of an indoor ventilation system is defined by the features of appending claim 1.
  • this electric equipment management system manages operations of a plurality of types of electric equipment installed in an indoor space 1 (space to be air-conditioned, space to be ventilated) of a building.
  • the electric equipment installed in the indoor space 1 include a plurality of air conditioners 10, a plurality of fluorescent lamp units 20 (illumination units), a plurality of air intake devices 30, a plurality of exhaust devices 40, and a plurality of cameras 50, for example.
  • the building is provided with an outdoor unit 61 and a communication adaptor 62 for the air conditioners 10, an illumination interface 70 for the florescent lamp units 20, a host computer 100, and an image processing computer 200.
  • the indoor space 1 is virtually divided into a plurality of sections, and air conditioning and ventilation are controlled in each section.
  • the indoor space 1 is divided horizontally in a grid manner.
  • the indoor space 1 including 16 rectangular sections 1A to 1P which are obtained by vertically dividing the space into four and by horizontally dividing into four.
  • the air conditioners 10 are arranged at different spots in the indoor space 1.
  • 16 air conditioners 10A to 10P are provided in each of the 16 sections 1A to 1P, respectively. Then, the air conditioners 10A to 10P are operated so as to set the corresponding sections 1A to 1P at setting temperatures, respectively.
  • the fluorescent lamp units 20 are also provided in the plurality of sections 1A to 1P, respectively.
  • the 16 fluorescent lamp units 20A to 20P are provided in the sections 1A to 1P, respectively. And each of the fluorescent lamp units 20A to 20P can be adjusted in brightness, so that each of the sections 1A to 1P can be adjusted in brightness.
  • the intake devices 30 and the exhaust devices 40 are also provided in the plurality of sections 1A to 1P, respectively.
  • a plurality of inlets 31A to 31P and outlets 41A to 41P are provided in the sections 1A to 1P, respectively.
  • the rotation speed of an intake motor 32 is controlled, so that the intake devices 30 can individually change the amount of outside air to be taken into the indoor space 1 through each of the inlets 31A to 31P.
  • the rotation speed of an exhaust motor 42 is controlled, the exhaust devices 40 can individually change the amount of exhausted from the indoor space 1 to the outside through each of the outlets 41A to 41P.
  • the intake motor 32 and the exhaust motor 42 are individually changed in rotation speed by an intake/exhaust change signal outputted from the host computer 100. That is, the host computer 100 can control an intake amount by the intake devices 30 and an exhaust amount by the exhaust devices 40.
  • the camera 50 is used for taking a photograph of the indoor space 1.
  • four cameras 50A to 50D are provided in the indoor space 1. That is, the camera 50A is arranged at a position at which the four sections 1A, 1B, 1E and 1F have contact one another, and the camera 50B is arranged at a position at which the sections 1C, 1D, 1G, and 1H have contact one another. Similarly, the camera 50C is arranged at a position at which the sections 1I, 1J, 1M, and 1N have contact one another, and the camera 50D is arranged at a position at which the sections 1K, 1L, 1O, and 1P have contact one another.
  • a group of the camera 50, the image processing computer 200 and the host computer 100 corresponds to an air-conditioning control apparatus configured to control air conditioning in the indoor space 1. It also corresponds to a ventilation control apparatus configured to control ventilation in the indoor space 1. Also, a group of the camera 50 and the image processing computer 200 corresponds to a people detection unit (human detection unit) configured to detect the presence or absence of a person (people) in the indoor space 1 and a people count detection unit configured to determine the number of people who are present in the indoor space 1.
  • a people detection unit human detection unit
  • a people count detection unit configured to determine the number of people who are present in the indoor space 1.
  • the host computer 100 corresponds to an adjustment unit (control unit) configured to adjust a setting temperature of each of the air conditioners 10 in accordance with the results of detecting people by the cameras 50 and the image processing computer 200, set intake/exhaust amounts for each of the intake devices 30 and the exhaust devices 40, and sets illuminance of each of the fluorescent lamp units 20.
  • an adjustment unit control unit configured to adjust a setting temperature of each of the air conditioners 10 in accordance with the results of detecting people by the cameras 50 and the image processing computer 200, set intake/exhaust amounts for each of the intake devices 30 and the exhaust devices 40, and sets illuminance of each of the fluorescent lamp units 20.
  • the host computer 100 includes a control unit 110, a timer 120, and an interface 130 for communication.
  • the control unit 110 includes a CPU 140 and a memory 150, and the CPU 140 executes a program stored in the memory 150, so as to realize various control operations. For example, "signals for change" for changing settings are outputted to the air conditioner 10, the intake motor 32, the exhaust motor 42, and the fluorescent lamp unit 20.
  • the timer 120 outputs time information which is required for control. For example, the timer 120 outputs timing information that specifies operation timing at each predetermined period of time and outputs current time information that indicates current time.
  • the interface 130 for communication controls communication in the host computer 100.
  • a part of areas of the memory 150 are used, as shown in Fig. 3B , as a program storage area 151, an identification information storage area 152, a people count information storage area 153, an average people count storage area 154, an air-conditioning pattern storage area 155, a ventilation pattern storage area 156, and an illumination pattern storage area 157.
  • program storage area 151 In the program storage area 151, a program to be read and executed by the CPU 140 is stored.
  • identification information is stored, which indicates the electric equipment capable of communicating with the host computer 100.
  • unique identification information is stored, which indicates each piece of the equipment with respect to the air conditioners 10A to 10P and the fluorescent lamp units 20A to 20P. Therefore, the host computer 100 can recognize from which piece of the electric equipment the received information is transmitted by checking the identification information contained in the received information against the identification information stored in the identification information storage area 152.
  • people count information (which will be described later) is stored, which is transmitted from the image processing computer 200 at predetermined intervals.
  • the people count information indicating the number of people in each section at the time is transmitted every one minute. And such people count information is stored in plural sets from the latest information to the information of three minutes before (predetermined time before).
  • the average people count information storage area 154 information of the average number of people in a predetermined time is stored.
  • an average value thereof is calculated, so that the number of people in each of the sections 1A to 1P in the past three minutes is calculated.
  • the average value of the past three minutes is calculated and is used for control, the number of people who are continuously present in each of the sections 1A to 1P can be easily grasped, and such a malfunction that the control is performed in an excessively particular manner can be suppressed.
  • patterns for air conditioning for adjusting a setting temperature in each of the air conditioners 10A to 10P are stored in a plurality of types each in accordance with patterns of the presence or absence of people in each section.
  • Such air-conditioning pattern includes: data for cooling for adjusting the setting temperature so that a section without a person, where a person is not detected, among the plurality of sections 1A to 1P is set at a temperature higher than a temperature in a section with a person, where a person is detected; and data for heating for adjusting the setting temperature so that the section without a person is set at a temperature lower than the temperature of the section with a person.
  • the air-conditioning pattern will be described later in detail.
  • the ventilation pattern storage area 156 stored are patterns for ventilation for setting an intake amount of the outside air or an exhaust amount of the indoor air for each of the plurality of inlets 31A to 31P and the outlets 41A to 41P (intake amount data, exhaust amount data).
  • Such ventilation pattern is to make adjustment so that the amount of the outside air to be taken in through the inlet 31 far from the section with a person becomes greater than the amount of the outside air taken in through the inlet 31 close to the section with a person.
  • the ventilation pattern is to make adjustment so that the amount of the indoor air exhausted through the outlet 41 far from the section with a person becomes greater than the amount of the indoor air exhausted through the outlet 41 close to the section with a person.
  • the ventilation patterns are also stored in a plurality of types each in accordance with the pattern of the presence or absence of a person in each section. The ventilation pattern will also be described later in detail.
  • illumination pattern storage area 157 patterns for illumination for adjusting illuminance in each of the fluorescent lamp units 20A to 20P (illuminance adjustment data) are stored in a plurality of types each in accordance with the pattern of the presence or absence of a person in each section.
  • illumination pattern is to make adjustment so that the illuminance of the fluorescent lamp unit 20 far from the section with a person is set less than the illuminance of the fluorescent lamp unit 20 close to the section with a person.
  • the illumination pattern will also be described later in detail.
  • the image processing computer 200 includes a control unit 210, a timer 220, and an interface 230 for communication.
  • the control unit 210 includes a CPU 240 and a memory 250, and the CPU 240 executes a program stored in the memory 250, so that various control operations are realized. For example, the control unit 210 performs processing of determining the number of people in each section from image data picked up by the camera 50 or processing of transmitting the people count information indicating the number of people in each section to the host computer 100.
  • the timer 220 outputs time information (timing information, current time information) which is required for control.
  • the interface 230 for communication controls communication in the host computer 100.
  • a part of areas in the memory 250 are used, as shown in Fig. 4B , as a program storage area 251, an image data storage area 252, and a people count information storage area 253.
  • the program storage area 251 a program to be read and executed by the CPU 240 is stored.
  • the image data storage area 252 the image data picked up by each of the cameras 50A to 50D is stored.
  • the image data stored in the image data storage area 252 is referred to when the control unit 210 performs the processing of determining the number of people in each section.
  • the people count information storage area 253 the people count information obtained by the control unit 210 is stored.
  • the air conditioner 10 includes a control unit 11 and an interface 12 for communication.
  • the control unit 11 is a unit that includes a CPU 13 and a memory 14 and is executes various control operations.
  • the interface 12 for communication controls communication in the air conditioner 10.
  • a part of areas of the memory 14 are used, as shown in Fig. 5B , as a program storage area 14a, an identification information storage area 14b, and a setting temperature information storage area 14c.
  • the program storage area 14a a program to be read and executed by the CPU 13 is stored.
  • identification information storage area 14b unique identification information indicating the air conditioner 10 is stored. Such identification information is used when the air conditioner 10 transmits/receives information. For example, when receiving a temperature-change signal for changing a setting temperature, the air conditioner 10 receives the temperature-change signal including the corresponding identification information. As a result, the air conditioner 10 can select and receive a temperature-change signal to be targeted when receiving the temperature-change signal.
  • setting temperature information storage area 14c setting temperature information indicating information such as a setting temperature and an air volume in the air conditioner 10 is stored.
  • the control unit 11 refers to the setting temperature information to recognize the setting temperature and the air volume, and makes temperature adjustment in the corresponding section. Therefore, the temperature of the corresponding section can be adjusted by rewriting the contents of the setting temperature information.
  • the fluorescent lamp unit 20 includes a control unit 21 and an interface 22 for communication.
  • the control unit 21 is a unit that includes a CPU 23 and a memory 24 and executes various control operations.
  • the interface 22 for communication controls communication in the fluorescent lamp unit 20.
  • a part of areas of the memory 24 are used, as shown in Fig. 6B , as a program storage area 24a, an identification information storage area 24b, and an illuminance information storage area 24c.
  • the program storage area 24a a program to be read and executed by the CPU 23 is stored.
  • the identification information storage area 24b unique identification information indicating the fluorescent lamp unit 20 is stored. Such identification information is used when the fluorescent lamp unit 20 transmits/receives information. For example, when receiving an illuminance-change signal for changing illuminance in the fluorescent lamp unit 20, the fluorescent lamp unit 20 receives the illuminance-change signal including the corresponding identification information.
  • the fluorescent lamp unit 20 can select and receive illuminance control information which is required when receiving the illuminance-change signal.
  • illuminance information storage area 24c illuminance information indicating illuminance in the fluorescent lamp unit 20 is stored.
  • the control unit 21 refers to the illuminance information to recognize a setting value of illuminance, and executes control for the fluorescent lamp. Therefore, the illuminance of the fluorescent lamp unit 20 can be changed by rewriting the contents of the illuminance information.
  • the air-conditioning pattern is to adjust a setting temperature in each of the air conditioners 10A to 10P in accordance with the patterns of the presence or absence of a person in each section.
  • the ventilation pattern is to set an intake amount of the outside air or an exhaust amount of the indoor air in each of the plurality of inlets 31A to 31P and the outlets 41A to 41P in accordance with the pattern of the number of people in each section. In other words, it is to set a rotation speed of each intake motor 32 or each exhaust motor 42.
  • the illumination pattern is to adjust the illuminance of each of the fluorescent lamp units 20 in accordance with the pattern of the presence or absence of a person in each section.
  • a control pattern example (A) is a control pattern in the case where a person is present in the section 1F which is located close to the center of the indoor space 1. That is, this is a control pattern when performing a cooling operation in the case where the predetermined number of people is present only in this section 1F and a setting temperature to be set in this section 1F is 26°C.
  • temperatures are set in such a manner that a temperature gradient is provided in stages radially from the section 1F (specific area), regarded as the center, in which a person is present, toward the periphery.
  • operating conditions of the air conditioners 10A to 10P are set so that the temperatures are changed in stages with two-dimensional expansion.
  • each of the air conditioners 10B, 10E, 10G and 10J in the sections 1B, 1E, 1G, and 1J adjacent to the section 1F in the up-and-down and left-and-right directions in the figure is set at a temperature of 27°C, which is higher by 1°C, and at an air volume of [6], which is smaller by two stages.
  • each of the air conditioners 10A, 10C, 10I, and 10K in the sections 1A, 1C, 1I, and 1K adjacent to the section 1F in the diagonal direction is set at a temperature of 28°C, which is higher by 2°C, and the at an air volume of [4], which is smaller by 4 stages.
  • the intake amount and the exhaust amount of the inlet 31P and the outlet 41P in the section 1P are set at [8] in 10 stages, while the intake amounts and the exhaust amounts of the inlets 31A to 310 and the outlets 41A to 410 in other sections 1A to 1O are set at [0].
  • the intake amount and the exhaust amount of the inlet 31P are determined in accordance with the number of people obtained from the determination of the number of people who are present in the section 1F. Therefore, if the number of people is increased, the intake amount and the exhaust amount thereof are set at [9] or [10], while if the number of people is decreased, the intake amount and the exhaust amount thereof are set at [5] or [6].
  • the illumination of the fluorescent lamp units 20 is controlled so that, in the section 1F and the sections 1A to 1C, 1E, 1G, and 1I to 1K adjacent to the section 1F, the corresponding fluorescent lamp units 20A to 20C, 20E, 20F, 20G, and 20I to 20K are lighted, while the fluorescent lamp units 20 in other sections are not lighted.
  • the fluorescent lamp unit 20F in the section 1F is set at 100%, which is the brightest, while the fluorescent lamp units 20B, 20E, 20G, and 20J in the sections 1B, 1E, 1G, and 1J are set at 80%, which is darker than the fluorescent lamp unit 20F by 20%.
  • the fluorescent lamp units 20A, 20C, 20I, and 20K in the sections 1A, 1C, 1I, and 1K are set at 60%, which is darker than the fluorescent lamp unit 20F by 40%.
  • a control pattern example (B) is also a control pattern of a case where a person is present in the section 1F. To be more specific, this is a control pattern when a heating operation is performed in a case where the predetermined number of people are present only in this section 1F, and a setting temperature of this section 1F is 24°C. In the control pattern example (B) as well, temperatures are set in such a manner that a temperature gradient is provided in stages radially from the section 1F regarded as the center, in which a person is present, toward the periphery.
  • the air conditioner 10 in the section 1F is set at the highest temperature and air volume, and the farther the section is located from the section 1F, the lower the temperature and air volume thereof are set at.
  • each of the air conditioners 10 in the sections 1B, 1E, 1G, and 1J are set at a temperature of 23°C, which is lower by 1°C, and at an air volume of [7], which is smaller by two stages.
  • the air conditioners 10 in the sections 1A, 1C, 1I, and 1K are set at a temperature of 22°C, which is lower by 2°C, and at an air volume of [5], which is smaller by four stages.
  • the intake amount and the exhaust amount of the inlet 31P and the outlet 41P in the section 1P are set at [5], while the intake amounts and the air exhaust amounts of the inlets 31 and the outlets 41 of other sections are set at [0].
  • the intake amount and the air exhaust amount are set at [8].
  • a control pattern example (C) is a control pattern of a case where a person is present in the section 1M located at a corner portion of the indoor space 1. To be more specific, this is a control pattern when a cooling operation is performed in which the predetermined number of people are present only in the section 1M and a setting temperature of the air conditioner 10M in the section 1M is 26°C.
  • temperatures are set in such a manner that a temperature gradient is provided in stages radially from the section 1M regarded as the center, in which a person is present, toward the periphery.
  • the air conditioners 10I and 10N in the sections 1I and 1N are set at a temperature of 27°C, which is higher by 1°C, and at an air volume of [7], which is smaller by one stage.
  • the air conditioners 10E, 10J, and 10O in the sections 1E, 1J, and 1O are set at a temperature of 28°C, which is higher by 2°C, and at an air volume of [5], which is smaller by three stages.
  • setting is made such that the farther the section is located from the section 1F, the higher the temperature thereof becomes as well as the smaller the air volume thereof becomes.
  • the intake amount and the air exhaust amount of the inlet 31D and the outlet 41D in the section 1D are set at [10]
  • the intake amounts and the air exhaust amounts of the inlets 31 and the outlets 41 in other sections are set at [0].
  • the intake amount and the air exhaust amount of the inlet 31P and the outlet 41P are set at [8].
  • the illumination of the fluorescent lamp units 20 is controlled so that, in the section 1M and the sections 1I, 1J, and 1N adjacent to the section 1M, the corresponding fluorescent lamp units 20I, 20J, 20M, and 20N are lighted, while other fluorescent lamp units 20 are not lighted.
  • the fluorescent lamp unit 20M in the section 1M is set at 100%, which is the brightest, while the fluorescent lamp units 20I and 20N in the sections 1I and 1N are set at 80%, which is darker than the fluorescent lamp unit 20Mby 20%.
  • the fluorescent lamp unit 20J in the section 1J is set at 60%, which is darker than the fluorescent lamp unit 20M by 40%.
  • control patterns (A) to (C) are control patterns if a person is detected in one section, but a control pattern example (D) is a control pattern if a person is detected in each of two sections.
  • a diagram illustrates a control pattern when the cooling operation is performed, if a person is present in each of the sections 1E and 1O.
  • a position of the center of gravity (a position of the center of gravity of a plane figure based on the distribution of people) in the indoor space 1 is obtained and the section 1 corresponding to the position of the center of gravity is used as the center, so that temperatures of the air conditioners 10A to 10P are set in such a manner that a temperature gradient is provided in stages radially from the section 1 toward the periphery.
  • the center of gravity is positioned in the section 1J which is located between the section 1E and the section 1O.
  • the temperatures of the air conditioners 10A to 10P are set in such a manner that a temperature gradient is provided in stages radially from the section 1J.
  • each of the air conditioners 10E and 10O of the section 1E and the section 1O is set at a temperature of 26°C and an air volume at [8].
  • the air conditioner 10J of the section 1J which is used as the center, is set at a temperature lower than those of the section 1E and the section 1O, and at an air volume greater than those thereof, considering that the cooling operation is performed. For example, it is set at a temperature of 25°C and at an air volume of [9].
  • the air conditioners 10 of other sections 1 are set such that the farther the section is located from the section 1J, the lower the temperature thereof becomes as well as the smaller the air volume thereof becomes.
  • the air conditioners 10I and 10N in the sections 1I and 1N are set at a temperature of 27°C and an air volume of [7].
  • the air conditioners 10A, 10F, 10K, and 10P of the sections 1A, 1F, 1K, and 1P are set at a temperature of 27°C and an air volume of [7].
  • the air conditioners 10M, 10B, 10G, and 10L of the sections 1M, 1B, 1G, and 1L are set at a temperature of 28°C and an air volume of [6].
  • the intake amount and the exhaust amount of the inlet 31D and the outlet 41D in the farthest section 1D are set at [10]
  • the intake amounts and the exhaust amounts of the inlets 31C and 31H and the outlets 41C and 41H in the section 1C and the section 1H, which are second farthest are set at [8].
  • setting is made such that the farther the section is located from the section 1J, the greater the intake amount and the air exhaust amount thereof become.
  • the fluorescent lamp units 20E, 20J, and 200 of the three sections are set at 100%, which is the brightest. Accordingly, the fluorescent lamp units 20 to be set at brightness of 80% and the fluorescent lamp units 20 to be set at brightness of 60% are increased.
  • the fluorescent lamp units 20A, 20F, 20K, 20P, 20I, and 20N corresponding to the sections 1A, 1F, 1K, 1P, 1I, and 1N are set at 80%.
  • the fluorescent lamp units 20B, 20G, 20L, and 20M of the sections 1B, 1G, 1L, and 1M are set at 60%.
  • a control pattern example (E) is also a control pattern if a person is detected in each of two sections.
  • the control pattern example (E) is different from the above-described control pattern (D) in such a respect that the air conditioners 10 are different in setting among the sections in which people are detected.
  • the control pattern example (E) is a control pattern when the cooling operation is performed, if a person is present in each of the section 1I and the section 1O.
  • the air conditioner 10I in the section 1I is set at a temperature of 23°C and an air volume of [9]
  • the air conditioner 10O in the section 1O is set at a temperature of 25°C and an air volume of [7].
  • the section 1I and the section 1O are considered as separate centers, and the temperatures and the air volumes of the air conditioners 10 in other sections are set.
  • the air conditioners 10 in the other sections are set at temperatures on the basis of the closer section out of the two sections which are considered as the centers.
  • the air conditioners 10A, 10B, 10E, 10F, and 10M in the sections 1A, 1B, 1E, 1F, and 1M are set at the temperatures and air volumes on the basis of the setting of the section 1I.
  • the air conditioners 10D, 10G, 10H, 10K, 10L, and 10P of the sections 1D, 1G, 1H, 1K, 1L, and 1P are set at the temperatures and air volumes on the basis of the setting of the section 1O.
  • the air conditioners 10J and 10N in the sections 1J and 1N, settings on the side where the setting temperature is lower and the air volume is greater are used as a basis.
  • the intake amount and the air exhaust amount are set so that the intake/exhaust is performed in the section 1D, which is the farthest from the section 1J.
  • the illumination by the fluorescent lamp units 20 settings are made assuming that there are two centers, i.e., the section 1I and the section 1O, and the brighter setting is employed for the section 1 with different settings in brightness. A detailed description of the settings of the illumination will be omitted.
  • a control pattern example (F) is also a control pattern if a person is detected in each of two sections.
  • the sections where people are detected are adjacent to each other, and the settings of the temperature and the air volume are the same therebetween.
  • the control pattern example (F) is a control pattern when the cooling operation is performed, if a person is present in each of the section 1N and the section 1O.
  • the air conditioners 10N and 10O of the section 1N and the section 1O are set at a temperature of 24°C and an air volume of [9]. In this case, considering the section 1I and the section 1O as one section 1, the temperatures and the air volumes in other sections are set.
  • the sections, in which the intake and the exhaust are performed, and the intake amount and the exhaust amount are set considering the section 1N and the section 1O as one section 1.
  • the intake and the exhaust are performed using the intake device 30 and the exhaust device 40 provided in the section 1A to the section 1D, which are the farthest from the section 1N and the section 1O.
  • the outside air is taken in through the inlets 31A and 31D of the section 1A and the section 1D, and the indoor air is exhausted through the outlets 41B and 41C of the section 1B and the section 1C.
  • illumination by the fluorescent lamp units 20 is set considering the section 1N and the section 1O as one section. A detailed description of the setting of the illumination will be omitted.
  • the image processing computer 200 determines whether or not it is timing in obtaining the number of people (S1).
  • a configuration is such that the number of people per section is obtained per minute (predetermined period).
  • the image processing computer 200 determines whether or not one minute has elapsed since the previous timing in obtaining the number of people on the basis of the time information by the timer 220, and if it determines that the time has elapsed, go to processing in Step S2.
  • Step S2 people count determination processing is performed. This determination processing is performed on the basis of the image data stored in the image data storage area 252.
  • the image processing computer 200 extracts images of people on the basis of the image data, and obtains people count information indicating the number of people per section. Then, the obtained people count information is transmitted to the host computer 100 (S3).
  • the host computer 100 receives the people count information from the image processing computer 200, and stores it in the people count information storage area 153.
  • the host computer 100 determines whether or not it is timing in updating the control pattern.
  • an update period is set at 1 minute (predetermined period).
  • the host computer 100 determines whether or not one minute has elapsed since the previous data-update timing on the basis of the time information by the timer 120, and if it determines that the time has elapsed, go to processing in Step S12.
  • Step S12 data of the corresponding control pattern is obtained.
  • the host computer 100 first reads the people count information for the past three minutes, and calculates the average number of people per section. Subsequently, the host computer 100 recognizes a section with a person, in which a person is detected, and a section without a person, in which a person is not detected. Further, in the section with a person, it determines the number of people per section.
  • the host computer 100 selects the most suitable control pattern in accordance with the arrangement pattern of the section with a person and the section without a person, and the number of people who are present in the indoor space 1, and reads the pattern from the air-conditioning pattern storage area 155, the ventilation pattern storage area 156, and the illumination pattern storage area 157.
  • the host computer 100 determines whether or not temperature adjustment is needed for the air conditioners 10 (S13). For example, the control pattern having been used so far is compared with the newly-read control pattern in each section. Then, if there is a difference in setting temperature or air volume, a temperature change signal is transmitted to the air conditioner provided in the section 1 (S14). The air conditioner 10 having received this temperature change signal updates the setting temperature information stored in the setting temperature information storage area 14c to the one indicated by the temperature change signal (S21). As a result, the setting temperature and/or air volume in this air conditioner 10 is changed.
  • the host computer 100 determines whether or not adjustment is needed for the intake device 30 and/or the exhaust device 40 (S15).
  • the control pattern having been used so far is compared with the newly-read control pattern in each section, and it is determined whether or not there is a difference in intake amount and/or air exhaust amount. If there is a difference, an intake/exhaust change signal is transmitted to the intake device 30 or the exhaust device 40 provided in the section 1 (S16). Then, the intake device 30 and/or the exhaust device 40 having received the intake/exhaust change signal changes the rotation speed of the intake motor 32 or the exhaust motor 42 (S22). As a result, the intake amount or the exhaust amount in the target inlet 31 or outlet 41 is changed.
  • the host computer 100 determines whether or not illuminance adjustment is needed for the fluorescent lamp units 20 (S17).
  • the control pattern having been used so far is compared with the newly-read control pattern in each section, and it is determined whether or not there is a difference in illuminance. If there is a difference, an illuminance change signal is transmitted to the fluorescent lamp unit 20 provided in the section 1 (S18).
  • the air conditioner 10 having received this illuminance change signal updates the illuminance information stored in the illuminance information storage area 24c to the one indicated by the illuminance change signal (S23). As a result, the brightness in the fluorescent lamp unit 20 is changed. Thereafter, the above-described processing is performed repeatedly.
  • the electric equipment management system includes: the intake device 30, configured to take the outside air into the indoor space 1 and capable of changing the intake amount of the outside air; and a group of the camera 50, the image processing computer 200, and the host computer 100.
  • the image processing computer 200 determines the number of people, who are present in the indoor space 1, on the basis of the image information from the camera 50, to be output as people count information.
  • the host computer 100 obtains the people count information and controls the intake device so that the more the number of people, indicated by the people count information, is increased, the greater the amount of the outside air to be taken in becomes.
  • the outside air of the optimal amount in accordance with the number of people who are present in the indoor space 1 can be taken into the indoor space 1.
  • the above-described indoor space 1 is virtually divided into the plurality of sections 1A to 1P.
  • the intake devices 30 includes the plurality of inlets 31A and 31P, which are arranged at different spots in the indoor space 1 and each of which is capable of changing the amount of the outside air to be taken into the indoor space 1, and the image processing computer 200 outputs the people count information in each section.
  • the host computer 100 controls the intake device 30 so that the amount of the outside air to be taken in through the inlet 31 located farther from the section 1, where a determination is made that a person is present, becomes greater than the amount of the outside air to be taken in through the inlet 31 located closer to the section 1, where a determination is made that a person is present.
  • a person who is present in the indoor space 1 hardly senses a change in the room temperature accompanied by the intake of the outside air.
  • a comfortable environment can be provided for the person who is present in the indoor space.
  • the outside air is taken in only through the inlet 31 located farthest from the section with a person, a change in the room temperature is hardly sensed.
  • This electric equipment management system also includes the exhaust devices 40 configured to discharge air in the indoor space 1 to the outside.
  • the exhaust devices 40 includes the plurality of outlets 41A to 41P, which are arranged at different spots in the indoor space 1 and each of which is capable of changing the amount of the air to be exhausted from the indoor space 1.
  • the host computer 100 controls the exhaust device 40 so that the amount of the air to be exhausted through the outlet 41 located farther from the section, where a determination is made that a person is present, becomes greater than the amount of the air to be exhausted through the outlet 41 located closer to the section, where a determination is made that a person is present.
  • a person who is present in the indoor space 1 hardly senses a change in the room temperature accompanied by the exhaust of the indoor air.
  • a comfortable environment can be provided for the person in the indoor space. Particularly, if the air is exhausted only through the outlet 41 located farthest from the section with a person, a change in the room temperature is hardly sensed.
  • the plurality of air conditioners 10A to 10P which are configured to set the corresponding sections at desired temperatures are provided, respectively.
  • the temperature of the section with a person is hardly changed by the intake of the outside air, so that the reduction can be suppressed in the efficiency of the cooling/heating operation by the air conditioners 10A to 10P.
  • the intake amount and the exhaust amount are set in accordance with the number of people who are present in the indoor space 1, in an embodiment described above.
  • the air conditioner 10 is instructed to perform an operation opposite to the cooling/heating operation which has been performed so far, the intake amount of the outside air may be increased using the instruction as a trigger.
  • the host computer 100 executes control so as to increase the intake amount of the outside air to an amount thereof which is greater than that in accordance with the number of people who are present in the indoor space 1. Also, the air conditioner 10 is switched to an air-blowing operation. As a result, the outside air at a temperature lower than that of the indoor space 1 is taken into the indoor space 1, so that the temperature of the indoor space 1 can be lowered. As a result, the same effect as the cooling operation can be achieved without switching to the cooling operation, so that energy can be saved.
  • the intake amount of the outside air may be increased only in the section where the specific air conditioner 10 is provided. This is useful in a case where equipment such as a server, which generates heat, is provided in the indoor space 1.
  • control pattern stored in the memory 150 is used in an embodiment described above, but the detail of control may be changed by calculation.
  • the control pattern is used as in an embodiment described above, the detail of control can be changed with efficiency.
  • the rectangular sections 1A to 1P divided in the horizontal direction in a grid manner are exemplified in an embodiment described above, however, a shape of the sections is not limited to a rectangular shape. For example, it may be a hexagonal shape or a triangular shape. In short, it is only necessary that the sections are divided in the planar direction.
  • the detection of a person in each section when only the presence or absence of a person is to be detected, other detecting means such as an infrared sensor may be used.
  • the number of people in each section can also be determined, so that precise control in consideration of the number of people can be executed. Updating cycles of the people detection timing and the control pattern can be set as appropriate.
  • control patterns (C) to (F) are intended for the cooling operation, but they can also be used as the control pattern for the heating operation.
  • control patterns (A) and (B) it is only necessary to set the control pattern such that the closer to the periphery the section is located, the lower the temperature thereof becomes in stages.
  • upper/lower limit (during cooling /heating operation) may be set.
  • the temperature is set so as not to exceed the upper limit temperature during the cooling operation, while the temperature is set so as not to fall under the lower limit temperature during the heating operation.
  • Such upper/lower limit may be a fixed value or may be determined in accordance with the temperature of the outside air. If it is set in accordance with the temperature of the outside air, it is determined such that the upper limit temperature is lower than the outside air temperature during the cooling operation, while the lower limit temperature is higher than the outside air temperature during the heating operation.
  • an intended unit does not have to be a fluorescent lamp. It may be other light sources as long as a light control function capable of controlling brightness is provided therein. For example, it may be an LED light or an incandescent lamp.
  • the inlet 31 and the outlet 41 do not have to be provided in each section.
  • they may be provided on a surface of a wall of the indoor space 1.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Fluid Mechanics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)
  • Ventilation (AREA)
EP11152737.0A 2010-01-29 2011-01-31 Ventilation control apparatus Active EP2357419B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010019534A JP5528833B2 (ja) 2010-01-29 2010-01-29 換気制御装置

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EP2357419A2 EP2357419A2 (en) 2011-08-17
EP2357419A3 EP2357419A3 (en) 2012-10-03
EP2357419B1 true EP2357419B1 (en) 2016-10-12

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Publication number Publication date
CN102141286A (zh) 2011-08-03
EP2357419A2 (en) 2011-08-17
JP2011158157A (ja) 2011-08-18
EP2357419A3 (en) 2012-10-03
CN102141286B (zh) 2013-09-04
US20110189938A1 (en) 2011-08-04
JP5528833B2 (ja) 2014-06-25

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