JP5300793B2 - Air conditioner - Google Patents

Air conditioner Download PDF

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JP5300793B2
JP5300793B2 JP2010134139A JP2010134139A JP5300793B2 JP 5300793 B2 JP5300793 B2 JP 5300793B2 JP 2010134139 A JP2010134139 A JP 2010134139A JP 2010134139 A JP2010134139 A JP 2010134139A JP 5300793 B2 JP5300793 B2 JP 5300793B2
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control unit
image
air conditioner
indoor
operating frequency
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JP2011257112A (en
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広有 柴
和也 久保
昌幸 山本
泰紀 毛利
一範 西田
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Priority to EP11001408.1A priority patent/EP2395291B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2120/00—Control inputs relating to users or occupants
    • F24F2120/10—Occupancy

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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)
  • Thermal Sciences (AREA)
  • Air Conditioning Control Device (AREA)

Description

本発明は、例えば赤外線センサーにより検知された室内の人数に応じて室外機を制御する空気調和機に関するものである。   The present invention relates to an air conditioner that controls an outdoor unit in accordance with, for example, the number of indoor persons detected by an infrared sensor.

従来の空気調和機では、タイマーあるいは予め設定されたスケジュールデータにより自動的に空調ＯＮとなった場合、室内機に設けられた輻射センサーにより人体存在の検知動作を行い、人体不在である場合には、空調能力を効率の良い領域にセーブして、室内温度が緩やかに設定温度に到達するように制御している（例えば、特許文献１参照）。   In a conventional air conditioner, when the air conditioner is automatically turned on by a timer or preset schedule data, a human body is detected by a radiation sensor provided in the indoor unit. The air conditioning capacity is saved in an efficient area, and the room temperature is controlled so that it gradually reaches the set temperature (see, for example, Patent Document 1).

特願２００９−２９２７２４号（第４頁）Japanese Patent Application No. 2009-292724 (4th page)

従来の空気調和機では、人体不在であることを検知している間、例えば圧縮機の運転周波数を６０Ｈｚなどの高運転効率状態にするとしているが、人数に応じた運転制御が行われていなかった。   In the conventional air conditioner, while it is detected that there is no human body, for example, the operation frequency of the compressor is set to a high operation efficiency state such as 60 Hz, but the operation control according to the number of people is not performed. It was.

本発明は、前記のような課題を解決するためになされたもので、室内機が設置された室内の人の有無および人数に応じて圧縮機の運転を制御する空気調和機を提供することを目的とする。   The present invention has been made to solve the above-described problems, and provides an air conditioner that controls the operation of a compressor according to the presence or absence of a person in a room where the indoor unit is installed and the number of persons. Objective.

本発明に係る空気調和機は、圧縮機を有する室外機と、延長配管を介して室外機に接続された室内機と、人感センサーと、リモコンと、リモコンからの人体検知の指令を受信したときに人感センサーを起動し、人感センサーの検知情報を基に室内の二次元画像を生成すると共に、その二次元画像と先に記憶した背景画像との差分から画素のグルーピングを行って画像の切り分けを行い、そして、切り分けた画像の平均温度が所定の閾値範囲内にあるときに、その切り分けた画像の画素数から人体が存在するか否かを判定し、これを切り分けた画像毎に行って人数を確定し、確定した人数を基に運転周波数を算出する室内制御部と、室内制御部により算出された運転周波数に基づいて圧縮機を制御する室外制御部とを備え、運転周波数は、室内に存在する人数が多くなるほど高くなる。 The air conditioner according to the present invention receives an outdoor unit having a compressor, an indoor unit connected to the outdoor unit through an extension pipe, a human sensor, a remote controller, and a human body detection command from the remote controller. Occasionally, a human sensor is activated to generate a two-dimensional indoor image based on the detection information of the human sensor, and the pixels are grouped from the difference between the two-dimensional image and the previously stored background image. When the average temperature of the cut image is within a predetermined threshold range, it is determined whether or not a human body exists based on the number of pixels of the cut image. The indoor control unit that calculates the operating frequency based on the determined number of persons and the outdoor control unit that controls the compressor based on the operating frequency calculated by the indoor control unit , the operating frequency is , Indoor The higher the existing number of people increases.

本発明においては、人感センサーの検知情報を基に室内の二次元画像を生成すると共に、その二次元画像と先に記憶した背景画像との差分から画素のグルーピングを行って画像の切り分けを行い、そして、切り分けた画像の平均温度が所定の閾値範囲内にあるときに、その切り分けた画像の画素数から人体が存在するか否かを判定し、これを切り分けた画像毎に行って人数を確定し、確定した人数を基に運転周波数を算出し、この運転周波数を室内に存在する人数が多くなるほど高くなるようにしている。これにより、従来、温度情報で圧縮機の運転周波数を制御していた場合と比べ、より早く必要な冷暖房能力を提供することができ、そのため、人が感じる快適性が向上し、能力の過不足をいち早く解消でき、省エネを実現できる。 In the present invention, a two-dimensional indoor image is generated based on the detection information of the human sensor, and image grouping is performed by grouping pixels from the difference between the two-dimensional image and the previously stored background image. Then, when the average temperature of the cut image is within a predetermined threshold range, it is determined whether or not a human body exists from the number of pixels of the cut image, and this is performed for each cut image to determine the number of people. The driving frequency is calculated based on the determined number of persons, and the driving frequency is increased as the number of persons existing in the room increases. This makes it possible to provide the necessary air conditioning capacity faster than when the operating frequency of the compressor is controlled based on temperature information. Can be solved quickly and energy saving can be realized.

本発明の実施の形態を示す空気調和機の全体構成を示す模式図である。It is a schematic diagram which shows the whole structure of the air conditioner which shows embodiment of this invention. 本発明の実施の形態に係る空気調和機の室内機の外観を示す斜視図である。It is a perspective view which shows the external appearance of the indoor unit of the air conditioner which concerns on embodiment of this invention. 図２の室内機の側面を切断して示す断面図である。It is sectional drawing which cut | disconnects and shows the side surface of the indoor unit of FIG. 図２の室内機の設置例を示す斜視図である。It is a perspective view which shows the example of installation of the indoor unit of FIG. 本発明の実施の形態に係る空気調和機の動作を示すフローチャートである。It is a flowchart which shows operation | movement of the air conditioner which concerns on embodiment of this invention. 本発明の実施の形態における検知人数と要求する圧縮機の運転周波数の相関図である。It is a correlation diagram of the operating frequency of the compressor to request | require and the number of detection in embodiment of this invention. 本発明の実施の形態における検知人数と要求する圧縮機の最大運転周波数の相関図である。It is a correlation diagram of the maximum operating frequency of the number of detected persons and the requested compressor in the embodiment of the present invention.

図１は本発明の実施の形態に係る空気調和機の全体構成を示す模式図、図２は本発明の実施の形態に係る空気調和機の室内機の外観を示す斜視図、図３は図２の室内機の側面を切断して示す断面図、図４は図２の室内機の設置例を示す斜視図である。
実施の形態１における空気調和機は、図１に示すように、室内機Ｘと、室外機Ｙと、リモコンＺと、室内機Ｘと室外機Ｙを接続する液延長配管Ａおよびガス延長配管Ｂと、リモコンＺと室内機Ｘの室内制御部Ｘ１との間および室内制御部Ｘ１と室外機Ｙの室外制御部Ｙ１との間にそれぞれ配線された通信線Ｃと、人感センサーである例えば赤外線センサー５（図２参照）とで構成されている。なお、前述の室内機Ｘは、主に建物内の例えば天井に埋め込まれて取り付けられている（図４参照）。リモコンＺと室内制御部Ｘ１の間が通信線Ｃで接続されているとしたが、その間は無線通信で情報の送受信を行うようにしてもよい。赤外線センサー５は、後述するが、室内機Ｘの化粧パネル２に設けられている。 FIG. 1 is a schematic diagram showing the overall configuration of an air conditioner according to an embodiment of the present invention, FIG. 2 is a perspective view showing the appearance of the indoor unit of the air conditioner according to the embodiment of the present invention, and FIG. Sectional drawing which cuts and shows the side surface of 2 indoor units, FIG. 4 is a perspective view which shows the example of installation of the indoor unit of FIG.
As shown in FIG. 1, the air conditioner in Embodiment 1 includes an indoor unit X, an outdoor unit Y, a remote controller Z, a liquid extension pipe A and a gas extension pipe B that connect the indoor unit X and the outdoor unit Y. And a communication line C wired between the remote controller Z and the indoor control unit X1 of the indoor unit X and between the indoor control unit X1 and the outdoor control unit Y1 of the outdoor unit Y, and a human sensor, for example, infrared It is comprised with the sensor 5 (refer FIG. 2). The indoor unit X described above is mainly embedded in, for example, a ceiling in a building (see FIG. 4). Although the remote control Z and the indoor control unit X1 are connected by the communication line C, information may be transmitted and received by wireless communication during that time. As will be described later, the infrared sensor 5 is provided on the decorative panel 2 of the indoor unit X.

室内制御部Ｘ１は、リモコンＺからの運転指令（冷房運転、暖房運転、除湿運転など）が受信されると、その運転指令を室外機Ｙの室外制御部Ｙ１に送信すると共に、後述するファンモーター６を運転指令に基づいて駆動する。また、室内制御部Ｘ１は、リモコンＺからの人体検知の指令、例えば本空調機の設置後の初回運転の開始や室内の背景画像の取得の指令などが受信されたときには、赤外線センサー５を起動し、その赤外線センサー５の検知情報を基に室内の熱画像を生成し、その熱画像を背景画像として記憶する。   When an operation command (cooling operation, heating operation, dehumidifying operation, etc.) is received from the remote controller Z, the indoor control unit X1 transmits the operation command to the outdoor control unit Y1 of the outdoor unit Y and a fan motor described later. 6 is driven based on the operation command. In addition, the indoor control unit X1 activates the infrared sensor 5 when a human body detection command from the remote controller Z, for example, a start of initial operation after installation of the air conditioner or a command to acquire a background image of the room is received. Then, an indoor thermal image is generated based on the detection information of the infrared sensor 5, and the thermal image is stored as a background image.

また、室内制御部Ｘ１は、背景画像の取得後に、リモコンＺからの人体検知の指令、例えば省エネ運転の開始の指令が受信されたときには、赤外線センサー５を起動し、赤外線センサー５の検知情報を基に室内の熱画像を生成する。そして、室内制御部Ｘ１は、その熱画像と予め記憶した室内の背景画像とを比較して人体が存在するか否かを判定し、かつ人体が存在するときには人数を判定し、その判定結果の情報を基に室外機Ｙの圧縮機の運転周波数を算出する。人体の人数の判定および運転周波数の算出については、動作を説明するときに詳述する。   Further, the indoor control unit X1 activates the infrared sensor 5 and receives the detection information of the infrared sensor 5 when a human body detection command, for example, a command to start an energy saving operation is received from the remote controller Z after acquiring the background image. Based on this, an indoor thermal image is generated. Then, the indoor control unit X1 determines whether or not a human body exists by comparing the thermal image with a previously stored indoor background image, and determines the number of persons when the human body is present. The operating frequency of the compressor of the outdoor unit Y is calculated based on the information. The determination of the number of human bodies and the calculation of the driving frequency will be described in detail when the operation is described.

室外制御部Ｙ１は、リモコンＺからの運転指令が室内制御部Ｘ１を介して受信されたときには、その運転指令に応じた運転周波数で圧縮機を制御し、室内制御部Ｘ１により算出された運転周波数が受信されたときには、その運転周波数に基づいて圧縮機を制御する。つまり、運転周波数が高くなるにつれ圧縮機の回転数が上がり、運転周波数が低くなるにつれ圧縮機の回転数が下がる。前述した室外機Ｙには、前述の圧縮機の他に、熱交換器、膨張弁などが設けられている。   When the operation command from the remote controller Z is received via the indoor control unit X1, the outdoor control unit Y1 controls the compressor at the operation frequency corresponding to the operation command, and the operation frequency calculated by the indoor control unit X1 Is received, the compressor is controlled based on the operating frequency. That is, the rotational speed of the compressor increases as the operating frequency increases, and the rotational speed of the compressor decreases as the operating frequency decreases. The outdoor unit Y described above is provided with a heat exchanger, an expansion valve and the like in addition to the above-described compressor.

室内機Ｘの外観は、図２に示すように、箱状のキャビネット１と、キャビネット１の下部に設けられた四辺形状の化粧パネル２と、化粧パネル２の中央に設けられた四辺形状の吸込口３ｂと、化粧パネル２に吸込口３ｂを囲むように設けられた４つの長方形状の吹出口３ａと、吹出口３ａに設けられ風向を上下方向に可変するための風向フラップ４とで構成されている。化粧パネル２の一角の下面には、赤外線センサー５が取り付けられている。   As shown in FIG. 2, the exterior of the indoor unit X is a box-shaped cabinet 1, a quadrilateral decorative panel 2 provided at the lower part of the cabinet 1, and a quadrilateral suction provided in the center of the decorative panel 2. It comprises a mouth 3b, four rectangular air outlets 3a provided in the decorative panel 2 so as to surround the air inlet 3b, and a wind direction flap 4 provided in the air outlet 3a for changing the air direction in the vertical direction. ing. An infrared sensor 5 is attached to one lower surface of the decorative panel 2.

室内機Ｘのキャビネット１内には、図３に示すように、キャビネット１の天面中心に負荷軸を下方に向けて設置されたファンモーター６と、ファンモーター６の負荷軸に取り付けられたターボファン７と、ターボファン７を囲むように配置された熱交換器８と、熱交換器８を囲むように配置されたインナーカバー９と、熱交換器８の下部に設置され熱交換の際に発生する凝縮水を受けるドレインパン１０と、吸込口３ｂから吸い込まれた空気の温度を検出する温度センサー１３とが設けられている。前述のインナーカバー９は、熱交換器８により熱交換された空気と機外とを断熱するためのもので、熱交換器８およびドレインパン１０とで熱交換器８の外周に風路を構成している。その風路は吹出口３ａと連通している。ドレインパン１０の下部には、ターボファン７の吸込口に連通する開口部が設けられている。   In the cabinet 1 of the indoor unit X, as shown in FIG. 3, a fan motor 6 installed at the center of the top surface of the cabinet 1 with the load shaft facing downward, and a turbo attached to the load shaft of the fan motor 6 The heat exchanger 8 disposed so as to surround the fan 7, the turbo fan 7, the inner cover 9 disposed so as to surround the heat exchanger 8, and the heat exchanger 8 installed at the lower part of the heat exchanger 8 during heat exchange A drain pan 10 that receives the generated condensed water and a temperature sensor 13 that detects the temperature of the air sucked from the suction port 3b are provided. The inner cover 9 described above is to insulate the air heat-exchanged by the heat exchanger 8 and the outside of the machine, and the heat exchanger 8 and the drain pan 10 constitute an air path on the outer periphery of the heat exchanger 8. doing. The air passage communicates with the air outlet 3a. In the lower part of the drain pan 10, an opening communicating with the suction port of the turbofan 7 is provided.

化粧パネル２の吸込口３ｂには、機内に塵埃等が侵入するのを防止するエアフィルター１１と、エアフィルター１１を支持しかつ目隠しとして機能するグリル１２とが設けられている。さらに、エアフィルター１１とターボファン７の間には、吸込んだ空気をターボファン７へスムーズに導入するためのベルマウス１４が設けられている。   The suction port 3b of the decorative panel 2 is provided with an air filter 11 that prevents dust and the like from entering the machine, and a grill 12 that supports the air filter 11 and functions as a blindfold. Further, a bell mouth 14 for smoothly introducing the sucked air into the turbo fan 7 is provided between the air filter 11 and the turbo fan 7.

前述した赤外線センサー５は、多眼あるいは複数個の赤外線センサーにより構成され、センサーケース５ｂ内に設置されている。そのセンサーケース５ｂは、化粧パネル２の一角に成形された外形が略円錐状のハウジング５ａに収納され、モーター５ｃの鉛直方向の軸に３６０度回転可能に取り付けられている。赤外線センサー５は複数の検知部により構成され、その検知部は、ハウジング５ａの凸部に設けられた穴５ｄから露出し、その穴５ｄの円の法線に対して平行に配列されている。   The aforementioned infrared sensor 5 is composed of multiple eyes or a plurality of infrared sensors, and is installed in the sensor case 5b. The sensor case 5b is housed in a substantially conical housing 5a whose outer shape is formed at one corner of the decorative panel 2, and is attached to a vertical axis of the motor 5c so as to be rotated 360 degrees. The infrared sensor 5 is composed of a plurality of detection units, and the detection units are exposed from a hole 5d provided in the convex portion of the housing 5a, and are arranged in parallel to the normal line of the circle of the hole 5d.

次に、前記のように構成された空気調和機において赤外線センサー５の人体検知に基づく動作について図５を用いて説明する。なお、空気調和機の基本動作については説明を省略する。
図５は本発明の実施の形態に係る空気調和機の動作を示すフローチャートである。なお、図５（ａ）は室内機Ｘが設置された室内の背景画像を取得するときのフローチャートであり、同図（ｂ）は同じ室内に存在する人数の検知および人数に応じた圧縮機の運転周波数の算出を示すフローチャートである。 Next, the operation based on the human body detection of the infrared sensor 5 in the air conditioner configured as described above will be described with reference to FIG. In addition, description is abbreviate | omitted about the basic operation | movement of an air conditioner.
FIG. 5 is a flowchart showing the operation of the air conditioner according to the embodiment of the present invention. FIG. 5A is a flowchart for acquiring a background image of the room in which the indoor unit X is installed. FIG. 5B is a diagram of detecting the number of persons existing in the same room and the compressor corresponding to the number of persons. It is a flowchart which shows calculation of an operating frequency.

室内制御部Ｘ１は、リモコンＺのスイッチ操作から初回運転開始を検知すると（Ｓ１）、赤外線センサー５をモータ駆動力により数分から数秒の間に１回程度の速度で３６０度回転させる（Ｓ２）。この時、室内制御部Ｘ１は、回転による軌跡軸と赤外線センサー５の配列方向の軸とで得られる赤外線センサー５の検知情報（室内情報）に基づいて二次元熱画像を生成し（Ｓ３）、これを背景画像として記憶する（Ｓ４）。その背景画像の取得は、空調機の運転中または停止中の何れでもよい。   When the indoor control unit X1 detects the start of the initial operation from the switch operation of the remote controller Z (S1), the infrared sensor 5 is rotated 360 degrees at a speed of about once in a few minutes to a few seconds by the motor driving force (S2). At this time, the indoor control unit X1 generates a two-dimensional thermal image based on the detection information (indoor information) of the infrared sensor 5 obtained from the locus axis by rotation and the axis in the arrangement direction of the infrared sensor 5 (S3), This is stored as a background image (S4). The acquisition of the background image may be either during operation or stop of the air conditioner.

室内制御部Ｘ１は、背景画像の取得後に、リモコンＺのスイッチ操作から省エネ運転開始を検知すると（Ｓ１１）、前述したように赤外線センサー５を一回転させ（Ｓ１２）、この時に得られる赤外線センサー５の検知情報に基づいて二次元熱画像を生成する（Ｓ１３）。そして、室内制御部Ｘ１は、その二次元熱画像と先に記憶した背景画像との差分を取り（Ｓ１４）、その差分から画素のグルーピングを行って物体と想定する画像の切り分けを行う（Ｓ１５）。   When the indoor control unit X1 detects the start of energy saving operation from the switch operation of the remote controller Z after acquiring the background image (S11), as described above, the infrared sensor 5 is rotated once (S12), and the infrared sensor 5 obtained at this time is detected. A two-dimensional thermal image is generated based on the detected information (S13). Then, the indoor control unit X1 takes a difference between the two-dimensional thermal image and the previously stored background image (S14), and performs pixel grouping based on the difference to separate an image that is assumed to be an object (S15). .

室内制御部Ｘ１は、切り分けた画像のうち、その部分の平均温度Ｔが閾値Ｔａ以上、閾値Ｔｂ以下かどうかを判定する（Ｓ１６）。平均温度Ｔがその範囲内に無いときには室内に人体が存在しないと判定して次のグルーピングがあるかどうかの判定に入る（Ｓ１９）。また、室内制御部Ｘ１は、平均温度Ｔが閾値Ｔａ以上、閾値Ｔｂ以下のときには、その部分の画素数が閾値Ｓａ以上であるかどうかを判定する（Ｓ１７）。室内制御部Ｘ１は、画素数が閾値Ｓａ未満のときには室内に人体が存在しないと判定して、前記と同様に他にグルーピングがあるかどうかの判定に入る（Ｓ１９）。室内制御部Ｘ１は、画素数が閾値Ｓａ以上であると判定したときには室内に人体が存在すると判定して（Ｓ１８）、次のグルーピングがあるかどうかを判定する（Ｓ１９）。   The indoor control unit X1 determines whether the average temperature T of the cut image is equal to or higher than the threshold Ta and lower than the threshold Tb (S16). When the average temperature T is not within the range, it is determined that there is no human body in the room, and it is determined whether there is a next grouping (S19). Further, when the average temperature T is equal to or higher than the threshold Ta and equal to or lower than the threshold Tb, the indoor control unit X1 determines whether or not the number of pixels in the portion is equal to or higher than the threshold Sa (S17). When the number of pixels is less than the threshold value Sa, the indoor control unit X1 determines that there is no human body in the room, and determines whether there is another grouping as described above (S19). When it is determined that the number of pixels is equal to or greater than the threshold value Sa, the indoor control unit X1 determines that there is a human body in the room (S18), and determines whether there is a next grouping (S19).

室内制御部Ｘ１は、次のグルーピングがあるときは前述した動作を繰り返し（Ｓ１６〜Ｓ１９）、この動作を次のグルーピングが無くなるまで行う。室内制御部Ｘ１は、その動作を繰り返し行ったときに確認した人体から人数を確定する（Ｓ２０）。そして、室内制御部Ｘ１は、その人数によって予め定められた式により室外機Ｙに要求する圧縮機の運転周波数Ｈｚｍを算出し（Ｓ２１）、その運転周波数Ｈｚｍを室外制御部Ｙ１に通信線Ｃを介して送信し（Ｓ２２）、室外機Ｙの圧縮機を運転周波数Ｈｚｍで運転させる（Ｓ２３）。   The indoor control unit X1 repeats the above-described operation when there is a next grouping (S16 to S19), and performs this operation until there is no next grouping. The indoor control unit X1 determines the number of persons from the human body confirmed when the operation is repeated (S20). And the indoor control part X1 calculates the operating frequency Hzm of the compressor requested | required of the outdoor unit Y by the formula predetermined by the number of people (S21), and uses the communication frequency C for the operating frequency Hzm to the outdoor control part Y1. (S22), and the compressor of the outdoor unit Y is operated at the operating frequency Hzm (S23).

以上のように実施の形態においては、省エネ運転の開始を検知したとき赤外線センサー５を起動し、赤外線センサー５の検知情報を基に熱画像を生成し、その熱画像と予め記憶した背景画像とを比較して人体が存在するか否かを判定する。そして、人体が存在するときには人数を判定し、その判定結果の情報を基に運転周波数を算出して、その運転周波数により圧縮機を制御する。これにより、従来、温度情報で圧縮機の運転周波数を制御していた場合と比べ、より早く必要な冷暖房能力を提供することができ、そのため、人が感じる快適性が向上し、能力の過不足をいち早く解消でき、省エネを実現できる。   As described above, in the embodiment, when the start of the energy saving operation is detected, the infrared sensor 5 is activated, a thermal image is generated based on the detection information of the infrared sensor 5, and the thermal image and the previously stored background image and To determine whether or not a human body exists. When a human body exists, the number of persons is determined, an operating frequency is calculated based on information on the determination result, and the compressor is controlled by the operating frequency. This makes it possible to provide the necessary air conditioning capacity faster than when the operating frequency of the compressor is controlled based on temperature information. Can be solved quickly and energy saving can be realized.

なお、本実施の形態では、図６に示すように室内に存在する人数に応じて圧縮機の運転周波数を決定するようにしたが、これに限定されるものではない。例えば、図７に示すように、人数を０人、１〜１０人、１０人以上の３段階に分け、それぞれの場合の圧縮機の運転周波数の最大値を予め決めておき、赤外線センサー５の検知に基づく人体の人数から３段階の何れかを特定して最大周波数値を決定し、その最大周波数値で室外機Ｙの圧縮機を運転させるようにしてもよい。   In the present embodiment, as shown in FIG. 6, the operating frequency of the compressor is determined according to the number of people present in the room, but the present invention is not limited to this. For example, as shown in FIG. 7, the number of persons is divided into three stages of 0, 1 to 10, 10 or more, and the maximum value of the operating frequency of the compressor in each case is determined in advance, and the infrared sensor 5 The maximum frequency value may be determined by specifying any one of the three levels from the number of human bodies based on the detection, and the compressor of the outdoor unit Y may be operated at the maximum frequency value.

また、省エネを図るために以下の内容も並行して実施する。赤外線センサーを用いて対象の室内の人数を検知した後、人数によってリモコンＺの設定温度を変更する。例えば、冷房時、ユーザーが設定温度を２７℃に設定していたとする。次に、赤外線センサー５を用いて対象の室内空間における人数を検知し、０人の場合は２℃増、１〜１０人の場合は１℃増、１０人以上の場合はそのままとし、その結果を通信線Ｃを介して室外機Ｙの室外制御部Ｙ１に送信する。このモードは、リモコンＺ上でユーザーが省エネ運転を選択した場合だけ有効とする。   In order to save energy, the following contents will be implemented in parallel. After detecting the number of persons in the target room using the infrared sensor, the set temperature of the remote control Z is changed according to the number of persons. For example, assume that the user has set the set temperature to 27 ° C. during cooling. Next, the number of persons in the target indoor space is detected using the infrared sensor 5. If the number is 0, the temperature is increased by 2 ° C., if the number is 10 to 10, the temperature is increased by 1 ° C. Is transmitted to the outdoor control unit Y1 of the outdoor unit Y via the communication line C. This mode is valid only when the user selects the energy saving operation on the remote control Z.

Ｘ 室内機、Ｘ１ 室内制御部、Ｙ 室外機、Ｙ１ 室外制御部、Ｚ リモコン、
Ａ 液延長配管、Ｂ ガス延長配管、Ｃ 通信線、１ キャビネット、２ 化粧パネル、
３ａ 吹出口、３ｂ 吸込口、４ 風向フラップ、５ 赤外線センサー、５ａ ハウジング、５ｂ センサーケース、５ｃ モーター、５ｄ ハウジングの穴、６ ファンモーター、７ ターボファン、８ 熱交換器、９ インナーカバー、１０ ドレインパン、
１１ エアフィルター、１２ グリル、１３ 温度センサー、１４ ベルマウス。 X indoor unit, X1 indoor control unit, Y outdoor unit, Y1 outdoor control unit, Z remote controller,
A liquid extension pipe, B gas extension pipe, C communication line, 1 cabinet, 2 decorative panel,
3a Air outlet, 3b Air inlet, 4 Wind direction flap, 5 Infrared sensor, 5a housing, 5b Sensor case, 5c motor, 5d Housing hole, 6 Fan motor, 7 Turbo fan, 8 Heat exchanger, 9 Inner cover, 10 Drain Bread,
11 Air filter, 12 Grill, 13 Temperature sensor, 14 Bell mouth.

Claims (5)

圧縮機を有する室外機と、
延長配管を介して前記室外機に接続された室内機と、
人感センサーと、
リモコンと、
前記リモコンからの人体検知の指令を受信したときに前記人感センサーを起動し、該人感センサーの検知情報を基に室内の二次元画像を生成すると共に、その二次元画像と先に記憶した背景画像との差分から画素のグルーピングを行って画像の切り分けを行い、そして、切り分けた画像の平均温度が所定の閾値範囲内にあるときに、その切り分けた画像の画素数から人体が存在するか否かを判定し、これを切り分けた画像毎に行って人数を確定し、確定した人数を基に運転周波数を算出する室内制御部と、
前記室内制御部により算出された運転周波数に基づいて前記圧縮機を制御する室外制御部とを備え、
前記運転周波数は、室内に存在する人数が多くなるほど高くなることを特徴とする空気調和機。 An outdoor unit having a compressor;
An indoor unit connected to the outdoor unit via an extension pipe;
With human sensor,
A remote control,
The human sensor is activated when a human body detection command is received from the remote controller, and a two-dimensional image of the room is generated based on the detection information of the human sensor , and the two-dimensional image is stored in advance. If the image is segmented by grouping pixels from the difference from the background image, and the average temperature of the segmented image is within a predetermined threshold range, whether there is a human body from the number of pixels in the segmented image Determine whether or not, determine the number of people by performing this for each image that has been cut, and an indoor control unit that calculates the operating frequency based on the determined number of people ,
An outdoor control unit that controls the compressor based on the operating frequency calculated by the indoor control unit ,
The air conditioner is characterized in that the operating frequency increases as the number of people present in the room increases . 前記室内制御部は、前記リモコンからの指令が室内の背景画像の取得であったとき前記人感センサーを起動し、該人感センサーの検知情報を基に室内の画像を生成し、その画像を背景画像として記憶することを特徴とする請求項１記載の空気調和機。 The indoor control unit activates the human sensor when a command from the remote controller is acquisition of a background image of the room, generates an indoor image based on detection information of the human sensor, The air conditioner according to claim 1 , wherein the air conditioner is stored as a background image. 前記室内制御部は、前記リモコンにより設定された室内温度を、確定した人数に応じて変更することを特徴とする請求項１又は２記載の空気調和機。 The air conditioner according to claim 1 or 2 , wherein the indoor control unit changes a room temperature set by the remote controller according to a determined number of people . 前記室内制御部は、確定した人数に応じて前記圧縮機の最大運転周波数を変更することを特徴とする請求項１乃至３の何れか一項に記載の空気調和機。 The indoor control unit, an air conditioner according to any one of claims 1 to 3, characterized in that changing the maximum operating frequency of the compressor according to the determined number of people. 前記人感センサーは多眼あるいは複数個の赤外線センサーであることを特徴とする請求項１乃至４の何れか一項に記載の空気調和機。 The motion sensors are air conditioner according to any one of claims 1 to 4, characterized in that a camera array or a plurality of infrared sensors.
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