JPH0618078A - Air conditioning system device - Google Patents
Air conditioning system deviceInfo
- Publication number
- JPH0618078A JPH0618078A JP4172537A JP17253792A JPH0618078A JP H0618078 A JPH0618078 A JP H0618078A JP 4172537 A JP4172537 A JP 4172537A JP 17253792 A JP17253792 A JP 17253792A JP H0618078 A JPH0618078 A JP H0618078A
- Authority
- JP
- Japan
- Prior art keywords
- transmission
- air conditioning
- data
- air conditioner
- machines
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Air Conditioning Control Device (AREA)
- Selective Calling Equipment (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、複数の空気調和機を
一か所で集中的に制御する空気調和システム装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioning system device for centrally controlling a plurality of air conditioners at one place.
【０００２】[0002]
【従来の技術】工場のような広範囲の領域を空調する場
合、領域内に複数の空気調和機を配置し、これら空気調
和機を一つの場所で集中的に制御できれば便利である。
そこで、複数の空気調和機および集中制御ユニットを共
通の伝送路で接続し、各空気調和機をＣＳＭＡ／ＣＤの
通信により集中制御するシステムがある。ＣＳＭＡ／Ｃ
Ｄは、ローカルエリアネットワークの一種で、 carrie
r sensemultiple access / collision detection を略
したものである。このようなシステムでは、各空気調和
機の最新の運転状態を集中制御ユニットで知る必要があ
り、そのために図５に示す通信が行なわれる。すなわ
ち、１つの集中制御ユニットおよび３台の空気調和機
Ａ，Ｂ，Ｃがあるとする。集中制御ユニットは、空気調
和機Ａ，Ｂ，Ｃに対し定期的に送信要求指令を送る。2. Description of the Related Art When air conditioning a wide area such as a factory, it is convenient if a plurality of air conditioners are arranged in the area and these air conditioners can be centrally controlled at one place.
Therefore, there is a system in which a plurality of air conditioners and a centralized control unit are connected by a common transmission line and each air conditioner is centrally controlled by CSMA / CD communication. CSMA / C
D is a kind of local area network, carrie
r Abbreviation for sense multiple access / collision detection. In such a system, it is necessary for the centralized control unit to know the latest operating state of each air conditioner, and therefore the communication shown in FIG. 5 is performed. That is, it is assumed that there is one central control unit and three air conditioners A, B and C. The centralized control unit periodically sends a transmission request command to the air conditioners A, B, and C.
【０００３】空気調和機Ａ，Ｂ，Ｃは、送信要求指令に
応答して一斉にデータ送信を開始する。このとき、空気
調和機Ａ，Ｂ，Ｃは、伝送路上でのデータ衝突を監視
し、データ衝突があった場合には、当該空気調和機の優
先順位が高い場合のみ送信を続けそれ以外は送信を中止
する。たとえば、Ａ，Ｂ，Ｃの順に優先順位が高いとす
れば、空気調和機Ａの送信がそのまま続き、空気調和機
Ｂ，Ｃは衝突負けとなって送信を中止する。The air conditioners A, B and C simultaneously start data transmission in response to the transmission request command. At this time, the air conditioners A, B, and C monitor the data collision on the transmission path, and when there is a data collision, continue transmission only when the priority of the air conditioner is high, and otherwise transmit. To cancel. For example, if the priority order is high in the order of A, B, and C, the air conditioner A continues transmission as it is, and the air conditioners B and C lose the collision and stop the transmission.
【０００４】送信を中止した空気調和機Ｂ，Ｃは、空気
調和機Ａの送信終了を待って再送信を開始するが、今度
は空気調和機Ｂの送信が続き、空気調和機Ｃの送信は衝
突負けで中止となる。こうして、各空気調和機は、衝突
負けがなくなるまで、所定時間毎に再送信を繰り返す。The air conditioners B and C, which have stopped the transmission, start re-transmission after waiting for the end of the transmission of the air conditioner A, but this time the transmission of the air conditioner B continues and the transmission of the air conditioner C Canceled due to collision loss. In this way, each air conditioner repeats the retransmission every predetermined time until the collision loss is eliminated.
【０００５】[0005]
【発明が解決しようとする課題】上記のシステムにおい
て、伝送路としてバスラインを用いている場合、バスラ
インを成す一対の信号線の線間電圧がデータ衝突時に上
昇する。この上昇は、衝突の数に比例して高くなる。In the above system, when the bus line is used as the transmission line, the line voltage of the pair of signal lines forming the bus line rises at the time of data collision. This rise is proportional to the number of collisions.
【０００６】バスラインには集中制御ユニットおよび各
空気調和機のそれぞれ通信回路が接続されており、これ
らの通信回路素子にとってデータ衝突時の電圧上昇は悪
影響となる。Centralized control units and communication circuits of each air conditioner are connected to the bus line, and the voltage rise at the time of data collision is detrimental to these communication circuit elements.
【０００７】この発明は上記の事情を考慮したもので、
その目的とするところは、伝送路における余計な電圧上
昇を防いで集中制御ユニットおよび各空気調和機におけ
る通信回路素子への電気的ストレスを極力解消すること
ができ、これにより通信回路素子の寿命向上、ひいては
信頼性向上が図れる空気調和システム装置を提供するこ
とにある。The present invention takes the above circumstances into consideration,
The purpose is to prevent excessive voltage rise in the transmission line and to eliminate electrical stress to the communication circuit elements in the centralized control unit and each air conditioner as much as possible, which improves the life of the communication circuit elements. In the end, it is to provide an air conditioning system device capable of improving reliability.
【０００８】[0008]
【課題を解決するための手段】この発明は、複数の空気
調和機および集中制御ユニットを共通の伝送路で接続
し、各空気調和機を集中制御する空気調和システム装置
において、集中制御ユニットに設けられ各空気調和機に
定期的に送信要求指令を送る手段と、各空気調和機に設
けられ最初の送信要求指令に応答して直ちにデータ送信
を開始する手段と、各空気調和機に設けられ送信開始時
にデータ衝突があれば当該空気調和機の優先順位が高い
場合のみ送信を続けそれ以外は送信を中止する手段と、
各空気調和機に設けられデータ衝突に基づく送信中止が
なくなるまで所定時間毎に再送信を繰り返す手段と、各
空気調和機に設けられデータ衝突に基づく送信中止の回
数をカウントする手段と、各空気調和機に設けられ２度
目からの送信要求に対しては上記カウント回数に基づく
時間遅れを待ってデータを送信する手段とを設けてい
る。According to the present invention, a plurality of air conditioners and a central control unit are connected by a common transmission line, and an air conditioning system apparatus for centrally controlling each air conditioner is provided in the central control unit. Means for periodically sending a transmission request command to each air conditioner, means for starting data transmission immediately in response to the first transmission request command provided for each air conditioner, and transmission provided for each air conditioner If there is a data collision at the start, a means to continue transmission only when the priority of the air conditioner is high, and a means to stop transmission otherwise.
Means provided in each air conditioner for repeating retransmission every predetermined time until transmission interruption due to data collision disappears, means for counting the number of transmission interruptions due to data collision provided in each air conditioner, and each air conditioner For the second transmission request provided in the harmony machine, there is provided means for transmitting data after waiting for a time delay based on the number of counts.
【０００９】[0009]
【作用】集中制御ユニットは、各空気調和機に定期的に
送信要求指令を送る。各空気調和機は、最初の送信要求
指令に応答して直ちにデータ送信を開始するが、その送
信開始時にデータ衝突があれば、当該空気調和機の優先
順位が高い場合のみ送信を続けそれ以外は送信を中止す
る。送信を中止した空気調和機は、データ衝突に基づく
送信中止がなくなるまで所定時間毎に再送信を繰り返す
とともに、その送信中止の回数をカウントする。２度目
からの送信要求に対しては、各空気調和機は上記カウン
ト回数に基づく時間遅れを待ってデータを送信する。The central control unit periodically sends a transmission request command to each air conditioner. Each air conditioner starts data transmission immediately in response to the first transmission request command, but if there is a data collision at the start of the transmission, it will continue transmission only if the priority of the air conditioner is high, otherwise. Stop sending. The air conditioner that has stopped transmission repeats retransmission every predetermined time until there is no transmission stop due to data collision, and counts the number of transmission stops. In response to the second transmission request, each air conditioner waits for a time delay based on the number of counts and transmits the data.
【００１０】[0010]
【実施例】以下、この発明の一実施例について図面を参
照して説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.
【００１１】図２に示すように、室内ユニット１および
室外ユニット２からなる数台の空気調和機Ａ，Ｂ，…Ｎ
がある。これら空気調和機の室内ユニット１はそれぞれ
通信回路を内蔵しており、その各通信回路が１本の共通
の伝送路であるバスライン３を介して集中制御ユニット
Ｚに接続される。As shown in FIG. 2, several air conditioners A, B, ... N consisting of an indoor unit 1 and an outdoor unit 2 are provided.
There is. The indoor units 1 of these air conditioners each have a built-in communication circuit, and each communication circuit is connected to the centralized control unit Z via a bus line 3 which is one common transmission line.
【００１２】集中制御ユニットＺは、空気調和機Ａ，
Ｂ，…Ｎの運転を一か所で集中的に制御するためのもの
で、バスライン３に接続の通信回路を内蔵するととも
に、次の［１］［２］の機能手段を有している。 ［１］管理者の操作に応じた運転条件を各空気調和機に
送信する手段。 ［２］各空気調和機の運転状態を確認するべく、各空気
調和機に対し定期的に送信要求指令を送る手段。 また、各室内ユニット１は、次の［１］〜［５］の機能
手段を有している。 ［１］最初の送信要求指令に応答して直ちにデータ送信
を開始する手段。送信するデータは、当該空気調和機の
運転状態を知らせるためのものである。The central control unit Z includes an air conditioner A,
This is for centrally controlling the operations of B, ... . [1] A means for transmitting operating conditions corresponding to the operation of the administrator to each air conditioner. [2] Means for periodically sending a transmission request command to each air conditioner in order to confirm the operating state of each air conditioner. Further, each indoor unit 1 has the following functional means [1] to [5]. [1] A means for immediately starting data transmission in response to the first transmission request command. The data to be transmitted is for notifying the operating state of the air conditioner.
【００１３】［２］送信開始時にバスライン３上でのデ
ータ衝突を監視し、データ衝突があれば、当該空気調和
機の優先順位が高い場合のみ送信を続けそれ以外は送信
を中止する手段。 ［３］データ衝突に基づく送信中止がなくなるまで、所
定時間毎に再送信を繰り返す手段。 ［４］データ衝突に基づく送信中止の回数ｍを内部カウ
ンタでカウントする手段。 ［５］２度目からの送信要求に対してはカウント回数ｍ
に基づく時間遅れｔｍを待ってデータを送信する手段。 ここで、集中制御ユニットＺおよび各室内ユニット１の
送信データは、図３に示すフォーマットを有する。[2] A means for monitoring a data collision on the bus line 3 at the start of transmission, and if there is a data collision, continue the transmission only when the priority of the air conditioner is high, and stop the transmission otherwise. [3] A unit that repeats retransmission at predetermined time intervals until there is no suspension of transmission due to data collision. [4] A means for counting the number m of transmission cancellations due to data collision with an internal counter. [5] Count number m for the second transmission request
Means for transmitting data after a time delay tm based on Here, the transmission data of the central control unit Z and each indoor unit 1 has the format shown in FIG.
【００１４】すなわち、送信データは、優先コードＰ
Ｒ、自己アドレスＳＡ、相手アドレスＤＡ、制御コード
ＣＣ、電文長コードＢＣ、データ本体ＤＡＴＡ、チェッ
クコードＦＣＣ、ダミーＤＭＹ、およびアクノーリッジ
ＡＣＫにより１フレームが構成される。That is, the transmission data has the priority code P.
One frame is composed of R, own address SA, partner address DA, control code CC, message length code BC, data body DATA, check code FCC, dummy DMY, and acknowledge ACK.
【００１５】優先コードＰＲは、優先順位を表わす。自
己アドレスＳＡは、自己端末のアドレスを表わす。相手
アドレスＤＡは、送信先端末のアドレスを表わす。制御
コードＣＣは、データの内容を表わす。電文長コードＢ
Ｃは、データ本体ＤＡＴＡの長さ（キャラクタ数）を表
わす。チェックコードＦＣＣは、自己アドレスＳＡから
データ本体ＤＡＴＡまでの伝送誤り検出に使用される。
ダミーＤＭＹは、チェックコードＦＣＣに基づく誤り検
出に必要な時間を確保するための領域である。アクノー
リッジＡＣＫは、フレームの終了を表わすもので、送信
の終了指令に相当する。つぎに、上記の構成の作用を図
４のフローチャートおよび図１のタイムチャートを参照
しながら説明する。集中制御ユニットＺから空気調和機
Ａ，Ｂ，…Ｎに対し、定期的に送信要求指令が送られ
る。The priority code PR represents a priority order. The self address SA represents the address of the self terminal. The partner address DA represents the address of the destination terminal. The control code CC represents the content of data. Message length code B
C represents the length (the number of characters) of the data body DATA. The check code FCC is used to detect a transmission error from the self address SA to the data body DATA.
The dummy DMY is an area for ensuring the time required for error detection based on the check code FCC. The acknowledge ACK indicates the end of the frame and corresponds to a transmission end command. Next, the operation of the above configuration will be described with reference to the flowchart of FIG. 4 and the time chart of FIG. A transmission request command is periodically sent from the centralized control unit Z to the air conditioners A, B, ... N.
【００１６】空気調和機Ａ，Ｂ，…Ｎの室内ユニット１
は、最初の送信要求指令を受信すると（ステップ101,10
2 ）、それに応答して一斉にデータ送信を開始する（ス
テップ103 ）。同時に、内部カウンタのカウント値ｍを
零にクリアする（ステップ104 ）。Indoor unit 1 of air conditioners A, B, ... N
Receives the first transmission request command (steps 101, 10
2) In response to this, data transmission is started all at once (step 103). At the same time, the count value m of the internal counter is cleared to zero (step 104).
【００１７】この送信開始時、各室内ユニット１はバス
ライン３上でのデータ衝突を監視し、データ衝突があっ
た場合には当該空気調和機の優先順位が高い場合のみ衝
突勝ちとなって送信を続け（ステップ105,106 ）、優先
順位が高くない場合は送信を中止する（ステップ105,10
7 ）。At the start of this transmission, each indoor unit 1 monitors for data collision on the bus line 3, and if there is a data collision, it will be transmitted as a collision win only if the priority of the air conditioner is high. (Steps 105 and 106), and if the priority is not high, the transmission is stopped (Steps 105 and 10).
7).
【００１８】たとえば、Ａ，Ｂ，…Ｎの順に優先順位が
高いとすれば、空気調和機Ａの送信は衝突勝ちとなって
そのまま続き、空気調和機Ｂ，…Ｎの送信は衝突負けと
なって中止される。For example, if the priority order is high in the order of A, B, ... N, the transmission of the air conditioner A will continue to be the collision win, and the transmission of the air conditioners B, ... N will be the collision loss. Will be canceled.
【００１９】衝突負けにより送信を中止した室内ユニッ
ト１は、カウント値ｍを“１”だけアップするとともに
（ステップ108 ）、内部タイマでタイムカウントｔを開
始し（ステップ109 ）、そのタイムカウントｔが設定値
ｔ1 に達したところで再送信を開始する（ステップ110,
111 ）。設定値ｔ1 は、１フレーム分のデータ送信に要
する時間に相当するもので、内部メモリにあらかじめ記
憶されている。The indoor unit 1 that has stopped transmission due to a collision loss increments the count value m by "1" (step 108) and starts the time count t with the internal timer (step 109). Retransmission is started when the set value t 1 is reached (step 110,
111). The set value t 1 corresponds to the time required to transmit one frame of data, and is stored in the internal memory in advance.
【００２０】この再送信時、再びデータ衝突が監視さ
れ、優先順位の高い空気調和機Ｂの送信は衝突勝ちとな
ってそのまま続くが、残りの空気調和機の送信は衝突負
けとなって中止される。この中止に際し、上記同様にカ
ウント値ｍが“１”だけアップされる。こうして、空気
調和機Ｂ，…Ｎの室内ユニット１は、衝突負けがなくな
るまでｔ1 時間毎に再送信を繰り返す。At the time of this re-transmission, the data collision is monitored again, and the transmission of the air conditioner B having the higher priority order wins the collision and continues as it is, but the transmissions of the remaining air conditioners are canceled due to the collision loss. It At the time of this suspension, the count value m is incremented by "1" as in the above. Thus, the indoor unit 1 of the air conditioners B, ... N repeats the retransmission every t 1 hours until the collision loss is eliminated.
【００２１】衝突負けがなく、送信を終了したとき、各
室内ユニット１は、カウント値ｍに対してｔ1 （＝１フ
レーム分のデータ送信に要する時間）を乗算し、乗算結
果を送信遅らせ時間ｔｍとして内部メモリに記憶する
（ステップ112 ）。When the transmission is completed without collision loss, each indoor unit 1 multiplies the count value m by t 1 (= time required for data transmission for one frame) and delays the multiplication result by the transmission delay time. It is stored in the internal memory as tm (step 112).
【００２２】その後、２度目からの送信要求指令を受信
した空気調和機Ａ，Ｂ，…Ｎは、タイムカウントｔを開
始し（ステップ113 ）、タイムカウントｔが記憶時間ｔ
ｍに達するまで待ってから再送信を開始する（ステップ
114,115 ）。After that, the air conditioners A, B, ... N having received the transmission request command from the second time start the time count t (step 113), and the time count t is the storage time t.
Wait until m is reached before starting retransmission (step
114,115).
【００２３】このように、最初の送信要求に対するデー
タ送信に際してはデータ衝突に基づく送信中止がなくな
るまで送信を繰り返し、かつ送信中止の回数ｍをカウン
トしておき、２度目からの送信要求に対してはカウント
回数ｍに基づく時間遅れｔｍを待ってデータを送信する
ことにより、２度目からの送信要求に対してはデータ衝
突をまったく生じることなく一通りのデータ送信を完了
することができる。As described above, when data is transmitted in response to the first transmission request, the transmission is repeated until there is no transmission suspension due to data collision, and the number m of transmission suspensions is counted and the second transmission request is transmitted. Waits for the time delay tm based on the number of times m of count to transmit the data, so that it is possible to complete the general data transmission without any data collision for the second transmission request.
【００２４】したがって、バスライン３における余計な
電圧上昇は初めだけであり、集中制御ユニットｚおよび
各室内ユニット１の通信回路素子に対する電気的ストレ
スを極力解消することができる。よって、通信回路素子
の寿命向上、ひいては信頼性向上が図れる。なお、この
発明は上記実施例に限定されるものではなく、要旨を変
えない範囲で種々変形実施可能である。Therefore, the extra voltage rise in the bus line 3 is only at the beginning, and the electric stress on the communication circuit elements of the centralized control unit z and each indoor unit 1 can be eliminated as much as possible. Therefore, the life of the communication circuit element can be improved, and the reliability can be improved. The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention.
【００２５】[0025]
【発明の効果】以上述べたようにこの発明によれば、各
空気調和機は最初の送信要求指令に応答して直ちにデー
タ送信を開始するが、その送信開始時にデータ衝突があ
れば、当該空気調和機の優先順位が高い場合のみ送信を
続けそれ以外は送信を中止し、かつデータ衝突に基づく
送信中止がなくなるまで所定時間毎に再送信を繰り返す
とともに、送信中止の回数をカウントしておき、２度目
からの送信要求に対しては上記カウント回数に基づく時
間遅れを待ってデータを送信する構成としたので、伝送
路における余計な電圧上昇を防いで集中制御ユニットお
よび各空気調和機における通信回路素子への電気的スト
レスを極力解消することができ、これにより通信回路素
子の寿命向上、ひいては信頼性向上が図れる空気調和シ
ステム装置を提供できる。As described above, according to the present invention, each air conditioner immediately starts data transmission in response to the first transmission request command. Continue transmission only when the priority of the harmony machine is high, otherwise stop transmission, and repeat retransmission every predetermined time until there is no transmission stop due to data collision, and count the number of transmission stops, In response to the second transmission request, the data is transmitted after waiting the time delay based on the above-mentioned number of counts, so that an unnecessary voltage rise in the transmission line is prevented and the central control unit and the communication circuit in each air conditioner. Provide an air conditioning system device that can reduce electrical stress on the elements as much as possible, thereby improving the life of communication circuit elements and eventually improving reliability Kill.
【図１】この発明の一実施例の作用を説明するためのタ
イムチャート。FIG. 1 is a time chart for explaining the operation of an embodiment of the present invention.
【図２】同実施例の構成を示すブロック図。FIG. 2 is a block diagram showing the configuration of the same embodiment.
【図３】同実施例における送信データのフォーマットを
示す図。FIG. 3 is a diagram showing a format of transmission data in the embodiment.
【図４】同実施例の作用を説明するためのフローチャー
ト。FIG. 4 is a flowchart for explaining the operation of the embodiment.
【図５】従来システムの作用を説明するためのフローチ
ャート。FIG. 5 is a flowchart for explaining the operation of the conventional system.
１…室内ユニット、２…室外ユニット、Ａ，Ｂ，…Ｎ…
…空気調和機、Ｚ…集中制御ユニット。1 ... Indoor unit, 2 ... Outdoor unit, A, B, ... N ...
… Air conditioner, Z… Centralized control unit.
Claims (1)
トを共通の伝送路で接続し、各空気調和機を集中制御す
る空気調和システム装置において、前記集中制御ユニッ
トに設けられ各空気調和機に定期的に送信要求指令を送
る手段と、前記各空気調和機に設けられ最初の送信要求
指令に応答して直ちにデータ送信を開始する手段と、前
記各空気調和機に設けられ送信開始時にデータ衝突があ
れば当該空気調和機の優先順位が高い場合のみ送信を続
けそれ以外は送信を中止する手段と、前記各空気調和機
に設けられデータ衝突に基づく送信中止がなくなるまで
所定時間毎に再送信を繰り返す手段と、前記各空気調和
機に設けられデータ衝突に基づく送信中止の回数をカウ
ントする手段と、前記各空気調和機に設けられ２度目か
らの送信要求に対しては前記カウント回数に基づく時間
遅れを待ってデータを送信する手段とを備えたことを特
徴とする空気調和システム装置。1. An air conditioning system apparatus for connecting a plurality of air conditioners and a centralized control unit through a common transmission line to centrally control each air conditioner, wherein the centralized control unit is provided with a fixed period for each air conditioner. Means for sending a transmission request command, means for starting data transmission immediately in response to the first transmission request command provided in each air conditioner, and data collision at the start of transmission provided in each air conditioner. If so, means for continuing transmission only when the priority of the air conditioner is high, and means for stopping transmission otherwise, and re-transmission at predetermined time intervals until there is no transmission stop due to data collision provided in each of the air conditioners. Repeating means, means for counting the number of times transmission is stopped due to data collision provided in each of the air conditioners, and response to a second transmission request provided in each of the air conditioners. And a means for transmitting data after a time delay based on the number of counts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17253792A JP3161814B2 (en) | 1992-06-30 | 1992-06-30 | Air conditioning system equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17253792A JP3161814B2 (en) | 1992-06-30 | 1992-06-30 | Air conditioning system equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0618078A true JPH0618078A (en) | 1994-01-25 |
| JP3161814B2 JP3161814B2 (en) | 2001-04-25 |
Family
ID=15943738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17253792A Expired - Lifetime JP3161814B2 (en) | 1992-06-30 | 1992-06-30 | Air conditioning system equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3161814B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6419306B2 (en) | 1999-12-10 | 2002-07-16 | Toyoda Gosei Co., Ltd. | Illuminating plate for car |
| JP2010007947A (en) * | 2008-06-26 | 2010-01-14 | Mitsubishi Electric Engineering Co Ltd | Equipment control monitoring device and equipment control monitoring program |
| JP2011052936A (en) * | 2009-09-04 | 2011-03-17 | Hitachi Appliances Inc | Communication method for air conditioning system |
| JP2011145014A (en) * | 2010-01-15 | 2011-07-28 | Mitsubishi Electric Corp | Communication system for air conditioner |
| WO2012114421A1 (en) * | 2011-02-21 | 2012-08-30 | 三菱電機株式会社 | Air conditioning apparatus and air conditioning system |
| CN113176736A (en) * | 2021-04-13 | 2021-07-27 | 宁波奥克斯电气股份有限公司 | Centralized driving device sharing control method and centralized driving device |
-
1992
- 1992-06-30 JP JP17253792A patent/JP3161814B2/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6419306B2 (en) | 1999-12-10 | 2002-07-16 | Toyoda Gosei Co., Ltd. | Illuminating plate for car |
| JP2010007947A (en) * | 2008-06-26 | 2010-01-14 | Mitsubishi Electric Engineering Co Ltd | Equipment control monitoring device and equipment control monitoring program |
| JP2011052936A (en) * | 2009-09-04 | 2011-03-17 | Hitachi Appliances Inc | Communication method for air conditioning system |
| JP2011145014A (en) * | 2010-01-15 | 2011-07-28 | Mitsubishi Electric Corp | Communication system for air conditioner |
| WO2012114421A1 (en) * | 2011-02-21 | 2012-08-30 | 三菱電機株式会社 | Air conditioning apparatus and air conditioning system |
| CN103380330A (en) * | 2011-02-21 | 2013-10-30 | 三菱电机株式会社 | Air conditioning apparatus and air conditioning system |
| JP5528618B2 (en) * | 2011-02-21 | 2014-06-25 | 三菱電機株式会社 | Air conditioning equipment and air conditioning system |
| CN103380330B (en) * | 2011-02-21 | 2016-08-24 | 三菱电机株式会社 | Air-conditioning equipment and air conditioning system |
| CN113176736A (en) * | 2021-04-13 | 2021-07-27 | 宁波奥克斯电气股份有限公司 | Centralized driving device sharing control method and centralized driving device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3161814B2 (en) | 2001-04-25 |
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