JPH10227510A - Method of controlling air conditioner - Google Patents
Method of controlling air conditionerInfo
- Publication number
- JPH10227510A JPH10227510A JP9044600A JP4460097A JPH10227510A JP H10227510 A JPH10227510 A JP H10227510A JP 9044600 A JP9044600 A JP 9044600A JP 4460097 A JP4460097 A JP 4460097A JP H10227510 A JPH10227510 A JP H10227510A
- Authority
- JP
- Japan
- Prior art keywords
- serial signal
- air conditioner
- signal
- bit
- serial
- 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.)
- Pending
Links
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】この発明は室内を快適環境と
する空気調和機の制御方法に係り、特に詳しくは室内機
と室外機との間でシリアル信号の授受を行う際、シリア
ル信号を正確に受信することができるようにした空気調
和機の制御方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for controlling an air conditioner that provides a comfortable indoor environment, and more particularly to a method for accurately transmitting and receiving a serial signal between an indoor unit and an outdoor unit. The present invention relates to a method for controlling an air conditioner that can receive a signal.
【0002】[0002]
【従来の技術】この種の空気調和機は、リモコン等によ
って運転指令が出されると、圧縮機等を運転して冷凍サ
イクルを作動し、室内をリモコンの設定値の温度にし、
快適環境の維持を図る。2. Description of the Related Art When an operation command is issued by a remote controller or the like, an air conditioner of this type operates a compressor or the like to operate a refrigeration cycle to bring the room to a temperature set by the remote controller.
To maintain a comfortable environment.
【0003】前記空気調和機の運転に際して、室内機と
室外機との間ではシリアル信号の授受を行う。例えば、
室内機側では室温とリモコンの設定値との差に応じて決
定した圧縮機の運転周波数コード等を順シリアル信号
(例えば32ビットのシリアル信号=1ワード)に含め
て室外機側に送信する。室外機では、その順シリアル信
号(1ワード)を受信し、受信シリアル信号に含まれて
いる運転周波数コードにしたがって圧縮機を駆動し、ま
た圧縮機等の運転状態等をシリアル信号(逆シリアル信
号)に含めて室内機に送信する。室内機では、その逆シ
リアル信号を受信し、圧縮機の運転状態等を考慮した運
転周波数コード等を順シリアル信号に含めて室外機に送
信する。During the operation of the air conditioner, a serial signal is transmitted and received between the indoor unit and the outdoor unit. For example,
On the indoor unit side, the operating frequency code or the like of the compressor determined according to the difference between the room temperature and the set value of the remote controller is included in a forward serial signal (for example, a 32-bit serial signal = 1 word) and transmitted to the outdoor unit side. The outdoor unit receives the forward serial signal (one word), drives the compressor in accordance with the operating frequency code included in the received serial signal, and reports the operating state of the compressor and the like to a serial signal (inverse serial signal). ) And send it to the indoor unit. The indoor unit receives the reverse serial signal, transmits an operating frequency code or the like in consideration of the operating state of the compressor, etc., to the outdoor unit while including the forward serial signal.
【0004】このように、シリアル信号の授受を行うた
めに、例えば図3に示すように、室内機1は電源同期信
号回路1a、制御回路1b、順転送送信回路1cおよび
逆転送受信回路1dを備え、同様に室外機2は電源同期
信号回路2a、制御回路2b、順転送送信回路2cおよ
び逆転送受信回路2dを備えている。In order to transmit and receive a serial signal, as shown in FIG. 3, for example, the indoor unit 1 includes a power supply synchronizing signal circuit 1a, a control circuit 1b, a forward transfer transmitting circuit 1c, and a reverse transfer receiving circuit 1d. Similarly, the outdoor unit 2 includes a power supply synchronization signal circuit 2a, a control circuit 2b, a forward transfer transmitting circuit 2c, and a reverse transfer receiving circuit 2d.
【0005】なお、少なくとも制御回路1b,2bはマ
イクロコンピュータであり、また当該空気調和機の運転
に必要な処理を実行する。また、図3に示すように、室
内機1と室外機2とは交流電源3の電源ラインの他にシ
リアル信号ラインで接続されている。[0005] At least the control circuits 1b and 2b are microcomputers and execute processing necessary for the operation of the air conditioner. As shown in FIG. 3, the indoor unit 1 and the outdoor unit 2 are connected by a serial signal line in addition to the power line of the AC power supply 3.
【0006】室内機1では、交流電源2の交流電圧波形
によりゼロクロス点を境とした矩形波の同期信号(電源
同期信号)を電源同期信号回路1aで得ており、この同
期信号に同期して情報(運転周波数コード等のビット)
を制御回路1bで出力し、この出力ビット(1;,0;
L)を順転送送信回路1dで前記交流電圧の半波(例え
ば負電圧)毎に同期信号に同期させて室外機2に送信す
る。In the indoor unit 1, a rectangular synchronous signal (power synchronous signal) at the zero-cross point is obtained by the power synchronous signal circuit 1a by the AC voltage waveform of the AC power supply 2, and the synchronous signal is synchronized with the synchronous signal. Information (bits such as operating frequency code)
Is output by the control circuit 1b, and the output bits (1 ;, 0;
L) is transmitted to the outdoor unit 2 by the forward transfer transmission circuit 1d in synchronization with a synchronization signal for each half-wave (for example, a negative voltage) of the AC voltage.
【0007】室外機2では、室内機1の電源同期信号回
路1aと同じく、交流電源2の交流電圧波形によりをゼ
ロクロス点を境とした矩形波の同期信号(電源同期信
号)を電源同期信号回路1aで得ており、室内機1から
の順シリアル信号を順転送受信回路2dで受信し、この
受信シリアル信号(ビット)を前記同期信号に同期して
制御回路2bで読み込む。[0007] In the outdoor unit 2, like the power supply synchronizing signal circuit 1 a of the indoor unit 1, a rectangular wave synchronizing signal (power synchronizing signal) with a zero-cross point as a boundary is formed by an AC voltage waveform of the AC power supply 2. 1a, the forward serial signal from the indoor unit 1 is received by the forward transfer receiving circuit 2d, and the received serial signal (bit) is read by the control circuit 2b in synchronization with the synchronization signal.
【0008】このとき、図4に示すように、制御回路2
bは、同期信号のエッジを検出すると(同図(b)参
照)、内部のタイマをスタートして所定時間A(交流電
圧の半波の時間より短い時間)の経過を監視し、この所
定時間Aの経過時に受信順シリアル信号の1ビットを読
み込む(同図(c)参照)。At this time, as shown in FIG.
When an edge of the synchronization signal is detected (see FIG. 4B), an internal timer is started and the elapse of a predetermined time A (a time shorter than a half-wave time of the AC voltage) is monitored. When A elapses, one bit of the reception order serial signal is read (see FIG. 3C).
【0009】このようにして、交流電圧の半波毎に順シ
リアル信号(1ビット)を読み込むとともに、1ワード
分の順シリアル信号を受信すると、この1ワードの順シ
リアル信号をもとにして圧縮機等を駆動する。また、室
外機2では、室内機1と同様に圧縮機等の運転状態を含
めた逆シリアル信号を逆転送送信回路2cで送信し、室
内機1では逆シリアル信号を逆転送受信回路1dで受信
する。In this way, when a forward serial signal (1 bit) is read for each half-wave of the AC voltage and a forward serial signal for one word is received, compression is performed based on the forward serial signal of one word. Drive the machine. In the outdoor unit 2, similarly to the indoor unit 1, a reverse serial signal including the operating state of the compressor and the like is transmitted by the reverse transfer transmission circuit 2 c, and in the indoor unit 1, the reverse serial signal is received by the reverse transfer reception circuit 1 d. .
【0010】このように、室内機1と室外機2との間に
おいて、種々情報を含めたシリアル信号(順シリアル信
号、逆シリアル信号)の授受を行うことにより、圧縮機
を所定運転周波数で最適に運転することができ、室内を
設定温度とし、かつ快適環境の維持が可能である。As described above, by transmitting and receiving a serial signal (forward serial signal, reverse serial signal) including various information between the indoor unit 1 and the outdoor unit 2, the compressor is optimized at a predetermined operating frequency. , The interior can be set to a set temperature, and a comfortable environment can be maintained.
【0011】[0011]
【発明が解決しようとする課題】ところで、前記空気調
和機の制御方法においては、シリアル信号(順および逆
シリアル信号)の1ビットを同期信号のエッジ検出から
所定時間A経過経過後に読み込むが、確実性を期すため
に複数回連続して読み込むようにしている。しかし、前
記複数回連続して読み込む間隔が例えば数10μsec
と短いため、例えば図4(c)の二点鎖線矢印dに示す
ように、ある程度大きいノイズ等により本来1(H)レ
ベルであるビットを0(L)レベルとして読み込む、つ
まり間違ったシリアル信号を読み込むという欠点があ
る。この結果、当該空気調和機が誤った室温コントロー
ルを行うこととなり、室内環境を損なうことになる。In the method of controlling an air conditioner, one bit of a serial signal (forward and reverse serial signals) is read after a lapse of a predetermined time A from detection of an edge of a synchronization signal. In order to ensure the nature, it is read continuously multiple times. However, the interval for reading a plurality of times continuously is, for example, several tens μsec.
Therefore, for example, as indicated by a two-dot chain line arrow d in FIG. 4C, a bit that is originally 1 (H) level is read as 0 (L) level due to a certain amount of noise or the like, that is, an incorrect serial signal is read. There is a drawback of reading. As a result, the air conditioner performs erroneous room temperature control, which impairs the indoor environment.
【0012】この発明は前記課題に鑑みなされたもので
あり、その目的はノイズ等にかかわらず、シリアル信号
を正確に読み込むことができ(正確に受信することがで
き)、室内環境を損なうこともなく、ひいては快適環境
の向上を図ることができるようにした空気調和機の制御
方法を提供することにある。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to be able to accurately read (accurately receive) a serial signal irrespective of noise or the like and to impair the indoor environment. Another object of the present invention is to provide a control method of an air conditioner that can improve a comfortable environment.
【0013】[0013]
【課題を解決するための手段】前記目的を達成するため
に、この発明は空気調和機を運転するために室内機と室
外機との間で同空気調和機の交流電源に同期してシリア
ル信号の授受を行う空気調和機の制御方法において、前
記シリアル信号を受信する際、前記交流電源のゼロクロ
ス点を境とした矩形波の同期信号を得るとともに、該同
期信号のエッジから所定時間経過点で前記シリアル信号
の読み込み処理を行った後、前記所定時間より短い時間
毎に所定回数前記シリアル信号の読み込み処理を行い、
前記処理で読み込んだ複数のシリアル信号のうち多数を
占めるものを送信シリアル信号と判断するようにしたこ
とを特徴としている。In order to achieve the above object, the present invention relates to a method for operating an air conditioner, comprising the steps of: synchronizing a serial signal between an indoor unit and an outdoor unit in synchronization with an AC power supply of the air conditioner; In the method for controlling an air conditioner that performs transmission and reception of a serial signal, when receiving the serial signal, a synchronous signal of a rectangular wave bordering on a zero-cross point of the AC power source is obtained, and at a predetermined time after the edge of the synchronous signal. After performing the reading processing of the serial signal, performing the reading processing of the serial signal a predetermined number of times every time shorter than the predetermined time,
Among the plurality of serial signals read in the processing, a signal occupying a large number is determined as a transmission serial signal.
【0014】この発明は空気調和機を運転するために室
内機と室外機との間で、前記空気調和機の交流電源に同
期し、かつ前記交流電源の半波毎に1ビットを含めた所
定ビット数のシリアル信号の授受を行う空気調和機の制
御方法において、前記シリアル信号を受信する際、前記
交流電源のゼロクロス点を境とした矩形波の同期信号を
得るとともに、前記交流電源の半波毎に前記同期信号の
エッジから所定時間経過点で前記1ビットの読み込み処
理を行った後、前記所定時間より短い時間毎に所定回数
前記1ビットを読み込み処理を行い、前記処理で読み込
んだ複数の1ビットのうち多数を占めるものを送信シリ
アル信号の1ビットと判断するようにしたことを特徴と
している。According to the present invention, in order to operate an air conditioner, an indoor unit and an outdoor unit are synchronized with an AC power supply of the air conditioner and include one bit for each half-wave of the AC power supply. In the control method of an air conditioner for transmitting and receiving a serial signal having the number of bits, when receiving the serial signal, a synchronous signal of a rectangular wave bordering on a zero cross point of the AC power source is obtained, and a half-wave of the AC power source is obtained. After performing the 1-bit reading process at a predetermined time lapse point from the edge of the synchronization signal every time, the 1-bit reading process is performed a predetermined number of times every time shorter than the predetermined time, and the plurality of bits read by the process are read. It is characterized in that one occupying a large part of one bit is determined as one bit of the transmission serial signal.
【0015】この場合、前記交流電源の半波毎に、前記
シリアル信号を読み込む回数あるいは前記1ビットを読
み込む回数を奇数にすると好ましい。In this case, it is preferable that the number of times of reading the serial signal or the number of times of reading of one bit is odd for each half-wave of the AC power supply.
【0016】また、前記室内機および室外機において
は、前記同期信号のエッジから所定時間経過および同所
定時間より短い時間をそれぞれタイマで計測し、該タイ
マは当該制御手段であるマイクロコンピュータの機能で
実現するとよい。In the indoor unit and the outdoor unit, a predetermined time has elapsed from the edge of the synchronization signal and a time shorter than the predetermined time is measured by a timer, and the timer is a function of a microcomputer serving as the control means. It should be realized.
【0017】[0017]
【発明の実施の形態】以下、この発明の実施の形態を図
1および図2を参照して詳細に説明する。なお、図中、
図3と同一部分には同一符号を付して重複説明を省略す
る。また、図2は図4に対応している。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to FIGS. In the figure,
The same parts as those in FIG. FIG. 2 corresponds to FIG.
【0018】この発明の空気調和機の制御方法では、交
流電圧に同期した同期信号の立ち下がりエッジを検出し
てから所定時間aの経過時点でシリアル信号(順シリア
ル信号あるいは逆シリアル信号)の1ビットを読み込
み、しかる後所定時間b(<a)毎にその1ビットを複
数回読み込むとともに、それら読み込んだ1ビットのう
ち多数を占める1ビットを送信シリアル信号とする。な
お、所定時間aは交流電圧の半周期より短く、また所定
時間bはaより短く、かつ数10μsecより長い。そ
のため、室内機10および室外機11は前記所定時間a
および所定時間bのタイマおよび前述した機能を有する
制御回路10aおよび制御回路11aを備えている。な
お、制御回路10aは図3に示す制御回路1bの機能を
有し、制御回路11aは図3に示す制御回路2bの機能
を有している。また、図3と同様に、室内機10は電源
同期回路1a,順転送送信回路1cおよび逆転送受信回
路1dを備え、室外機11は電源同期回路2a,順転送
送信回路2cおよび逆転送受信回路2dを備えている。In the control method of the air conditioner of the present invention, one of the serial signals (forward serial signal or reverse serial signal) is detected when a predetermined time a elapses after detecting the falling edge of the synchronizing signal synchronized with the AC voltage. The bit is read, and thereafter, the one bit is read a plurality of times at every predetermined time b (<a), and one bit occupying the majority of the read one bit is used as a transmission serial signal. The predetermined time a is shorter than a half cycle of the AC voltage, and the predetermined time b is shorter than a and longer than several tens μsec. For this reason, the indoor unit 10 and the outdoor unit 11
And a control circuit 10a and a control circuit 11a having the above-described functions and a timer for a predetermined time b. The control circuit 10a has the function of the control circuit 1b shown in FIG. 3, and the control circuit 11a has the function of the control circuit 2b shown in FIG. 3, the indoor unit 10 includes a power supply synchronization circuit 1a, a forward transfer transmission circuit 1c, and a reverse transfer reception circuit 1d, and the outdoor unit 11 includes a power supply synchronization circuit 2a, a forward transfer transmission circuit 2c, and a reverse transfer reception circuit 2d. Have.
【0019】次に、前記構成の空気調和機の制御装置の
動作を図2のタイムチャート図を参照して詳しく説明す
ると、まず当該空気調和機の運転を行うために、室内機
側からは必要な指令(運転周波数コード等)を含む順シ
ルアル信号が室外機側に送信されるものとする。なお、
前記順リモコン信号は従来例で説明したように、交流電
源3の交流電圧の半波(負側半周期)毎に1ビットと
し、32ビットを1ワードとして送信する。すると、室
外機11では、順転送受信回路2dで順シルアル信号を
受信し(図2(c)参照)、この受信した順シリアル信
号を制御回路11aで1ビットづつ読み込む。Next, the operation of the control device for an air conditioner having the above configuration will be described in detail with reference to the time chart of FIG. 2. First, in order to operate the air conditioner, it is necessary for the indoor unit to operate. It is assumed that a forward serial signal including an appropriate command (such as an operating frequency code) is transmitted to the outdoor unit. In addition,
As described in the conventional example, the forward remote control signal is transmitted as one bit for each half-wave (negative half cycle) of the AC voltage of the AC power supply 3 and transmitted as 32 words as one word. Then, in the outdoor unit 11, the forward transfer receiving circuit 2d receives the forward serial signal (see FIG. 2C), and the received forward serial signal is read one bit at a time by the control circuit 11a.
【0020】このとき、図2(c)の波線矢印に示すよ
うに、制御回路11aは、電源同期回路2aからの同期
信号の立ち下がりエッジを検出すると、内部の所定時間
aのタイマをスタートし、このタイマのタイムアップで
受信順シリアル信号の1ビットを読み込むとともに、内
部の所定時間bのタイマをスタートし、このタイマのタ
イムアップで受信順シリアル信号の1ビットを読み込
む。また、前記所定時間bのタイマをタイムアップで再
スタートし、かつこのタイマの再スタートを奇数回行う
一方、そのタイマのタイムアップ毎に受信順シリアル信
号の1ビットを読み込む。At this time, when the control circuit 11a detects the falling edge of the synchronization signal from the power supply synchronization circuit 2a, as shown by the dashed arrow in FIG. 2C, it starts an internal timer for a predetermined time a. When the timer expires, one bit of the reception order serial signal is read, and an internal timer for a predetermined time b is started. When the timer expires, one bit of the reception order serial signal is read. In addition, the timer for the predetermined time b is restarted at time-up, and the timer is restarted an odd number of times, while one bit of the reception order serial signal is read every time the timer times-up.
【0021】図2(c)に示す場合、所定時間bのタイ
マを4回スタートし、受信順シリアル信号の1ビットを
5回読み込むことになる。この5回の読み込みが終了す
ると、、読み込んだ1ビットが1(H)であるか、0
(L)であるか分け、多数を占める方を送信されている
順シリアル信号の1ビットと判断する。In the case shown in FIG. 2C, the timer for the predetermined time b is started four times, and one bit of the serial signal in the reception order is read five times. When these five readings are completed, the read one bit is 1 (H) or 0 (zero).
(L), and it is determined that the one occupying the majority is one bit of the transmitted serial signal.
【0022】例えば、順シリアル信号にノイズが含まれ
ている場合(図2(c)の二点鎖線矢印d参照)、最初
に読み込んだ1ビットがノイズにより0(L)となって
も、それ以後に4回読み込んだ1ビットが1(H)とな
れば、送信されている順シリアル信号の1ビットを1
(H)と判断する。For example, when noise is included in the forward serial signal (see the two-dot chain arrow d in FIG. 2C), even if the first bit read becomes 0 (L) due to noise, If one bit read four times thereafter becomes 1 (H), 1 bit of the transmitted serial signal is changed to 1 (H).
(H) is determined.
【0023】したがって、ノイズ等により受信順シリア
ル信号を間違うこともなくなり、つまり正確に読み込む
ことができ、間違った制御が行われず、ひいては室内環
境が損なわれずに済む。Therefore, the serial signal received in the receiving order is not mistaken due to noise or the like, that is, it can be read accurately, erroneous control is not performed, and the indoor environment is not spoiled.
【0024】前述した方法により、室外機11は室内機
からの順シルアル信号(32ビット=1ワード)を読み
込み、この読み込んだシリアル信号により、例えば圧縮
機を所定に駆動する。According to the method described above, the outdoor unit 11 reads the forward serial signal (32 bits = 1 word) from the indoor unit, and drives the compressor, for example, in a predetermined manner by the read serial signal.
【0025】また、室外機11からは圧縮機の運転状態
等を逆シリアル信号として室内機10に送信し、室内機
11では前述した方法で逆シリアル信号を読み込むこと
から、ノイズにより受信逆シリアル信号を間違うことも
なくなり、つまり正確に読み込むことができ、間違った
制御が行われず、ひいては室内環境が損なわれずに済
む。The outdoor unit 11 transmits the operating state of the compressor and the like to the indoor unit 10 as a reverse serial signal, and the indoor unit 11 reads the reverse serial signal by the above-described method. Can be read correctly, that is, it can be read accurately, no erroneous control is performed, and the indoor environment is not impaired.
【0026】[0026]
【発明の効果】以上説明したように、この空気調和機の
制御方法の請求項1の発明によると、室内機と室外機と
の間でシリアル信号の授受を行う際、当該空気調和機の
交流電源のゼロクロス点を境とした矩形波の同期信号を
得るとともに、この同期信号のエッジから所定時間経過
点で前記シリアル信号の読み込み処理を行った後、前記
所定時間より短い時間毎に所定回数前記シリアル信号の
読み込み処理を行い、前記処理で読み込んだ複数のシリ
アル信号のうち多数を占めるものを送信シリアル信号と
したので、シリアル信号にノイズ等が含まれていても、
シリアル信号を正確に読み込むことができ(正確に受信
することができ)、室内環境が損なわれることなく、ひ
いては快適環境の向上を図ることができるという効果が
ある。As described above, according to the first aspect of the control method of the air conditioner, when the serial signal is transmitted and received between the indoor unit and the outdoor unit, the AC of the air conditioner is controlled. After obtaining a rectangular wave synchronization signal bordering on the zero crossing point of the power supply, and performing the reading processing of the serial signal at a predetermined time elapse point from the edge of the synchronization signal, performing the predetermined number of times every time shorter than the predetermined time Perform the reading process of the serial signal, since the transmission serial signal occupies the majority of the plurality of serial signals read in the process, even if the serial signal contains noise, etc.
There is an effect that the serial signal can be accurately read (accurately received), and the indoor environment is not impaired, and the comfortable environment can be improved.
【0027】請求項2の発明によると、室内機と室外機
との間で当該空気調和機の交流電源に同期し、かつ交流
電源の半波毎に1ビットを含めた所定ビット数のシリア
ル信号の授受を行う際、交流電源のゼロクロス点を境と
した矩形波の同期信号を得るとともに、交流電源の半波
毎にその同期信号のエッジから所定時間経過点で1ビッ
トを読み込み処理を行った後、前記所定時間より短い時
間毎に所定回数前記1ビットを読み込み処理を行い、こ
の処理で読み込んだ複数の1ビットのうち多数を占める
ものを送信シリアル信号の1ビットとしたので、ノイズ
等のかかわらず、複数ビットのシリアル信号を正確に読
み込むことができ(正確に受信することができ)、室内
環境が損なわれることなく、ひいては快適環境の向上を
図ることができるという効果がある。According to the second aspect of the present invention, a serial signal of a predetermined number of bits including one bit for each half-wave of the AC power supply, which is synchronized with the AC power supply of the air conditioner between the indoor unit and the outdoor unit. When transmitting and receiving, a rectangular wave synchronization signal bordering on the zero-cross point of the AC power supply is obtained, and one bit is read and processed at a predetermined time elapse from the edge of the synchronization signal for each half-wave of the AC power supply. Thereafter, the 1-bit is read a predetermined number of times at intervals shorter than the predetermined time, and a large number of the plurality of 1-bits read in this process are regarded as 1 bit of the transmission serial signal. Regardless, a multi-bit serial signal can be accurately read (accurately received), so that the indoor environment is not impaired and, consequently, a comfortable environment can be improved. There is an effect that.
【0028】請求項3の発明によると、請求項1または
2において、前記交流電源の半波毎に、前記シリアル信
号を読み込む回数あるいは前記1ビットを読み込む回数
を奇数としたので、請求項1または2の効果に加え、シ
リアル信号を1(H)あるいは0(L)の何れかに決ま
り、シリアル信号の読み込みができないという最悪の事
態を回避することができるという効果がある。According to the third aspect of the present invention, in the first or second aspect, the number of times of reading the serial signal or the number of times of reading the one bit is odd for each half-wave of the AC power supply. In addition to the effect of 2, the serial signal is determined to be either 1 (H) or 0 (L), and there is an effect that the worst case where the serial signal cannot be read can be avoided.
【0029】請求項4の発明によると、請求項1または
2の室内機および室外機においては、前記同期信号のエ
ッジから所定時間経過および同所定時間より短い時間を
それぞれタイマで計測しており、このタイマは当該制御
手段であるマイクロコンピュータの機能で実現するよう
にしたので、請求項1または2の効果に加え、新たなハ
ード回路を付加せずともよく、つまりコストアップにな
らず済むという効果がある。According to the fourth aspect of the present invention, in the indoor unit and the outdoor unit of the first or second aspect, a predetermined time has elapsed from the edge of the synchronization signal and a time shorter than the predetermined time has been measured by a timer. Since this timer is realized by the function of the microcomputer serving as the control means, in addition to the effect of claim 1 or 2, there is no need to add a new hardware circuit, that is, an effect that the cost is not increased. There is.
【図1】この発明の一実施の形態を示し、空気調和機の
制御方法が適用される制御装置の概略的ブロック線図。FIG. 1 is a schematic block diagram of a control device according to an embodiment of the present invention, to which an air conditioner control method is applied;
【図2】図1に示す空気調和機の制御装置の動作を説明
するための概略的タイムチャート。FIG. 2 is a schematic time chart for explaining the operation of the control device for the air conditioner shown in FIG. 1;
【図3】従来の空気調和機の制御装置の概略的ブロック
線図。FIG. 3 is a schematic block diagram of a conventional control device for an air conditioner.
【図4】図2に示す空気調和機の制御装置の動作を説明
するための概略的タイムチャート。FIG. 4 is a schematic time chart for explaining the operation of the control device for the air conditioner shown in FIG. 2;
1,10 室内機 1a,2a 電源同期回路 1b,10a 制御回路 1c 順転送送信回路 1d 逆転送受信回路 2,11 室外機 2b,11a 制御回路 2c 逆転送送信回路 2d 順転送受信回路 d ノイズ 1,10 Indoor unit 1a, 2a Power supply synchronization circuit 1b, 10a Control circuit 1c Forward transfer transmitting circuit 1d Reverse transfer receiving circuit 2,11 Outdoor unit 2b, 11a Control circuit 2c Reverse transfer transmitting circuit 2d Forward transfer receiving circuit d Noise
Claims (4)
外機との間で同空気調和機の交流電源に同期してシリア
ル信号の授受を行う空気調和機の制御方法において、前
記シリアル信号を受信する際、前記交流電源のゼロクロ
ス点を境とした矩形波の同期信号を得るとともに、該同
期信号のエッジから所定時間経過点で前記シリアル信号
の読み込み処理を行った後、前記所定時間より短い時間
毎に所定回数前記シリアル信号の読み込み処理を行い、
前記処理で読み込んだ複数のシリアル信号のうち多数を
占めるものを送信シリアル信号と判断するようにしたこ
とを特徴とする空気調和機の制御方法。An air conditioner control method for transmitting and receiving a serial signal between an indoor unit and an outdoor unit in synchronization with an AC power supply of the air conditioner in order to operate the air conditioner. When receiving a synchronous signal of a rectangular wave bordering on the zero-cross point of the AC power source, and after performing the reading process of the serial signal at a predetermined time elapse from the edge of the synchronous signal, from the predetermined time Perform the reading process of the serial signal a predetermined number of times every short time,
A method for controlling an air conditioner, wherein a signal occupying a large number of a plurality of serial signals read in the processing is determined to be a transmission serial signal.
外機との間で、前記空気調和機の交流電源に同期し、か
つ前記交流電源の半波毎に1ビットを含めた所定ビット
数のシリアル信号の授受を行う空気調和機の制御方法に
おいて、前記シリアル信号を受信する際、前記交流電源
のゼロクロス点を境とした矩形波の同期信号を得るとと
もに、前記交流電源の半波毎に前記同期信号のエッジか
ら所定時間経過点で前記1ビットの読み込み処理を行っ
た後、前記所定時間より短い時間毎に所定回数前記1ビ
ットを読み込み処理を行い、前記処理で読み込んだ複数
の1ビットのうち多数を占めるものを送信シリアル信号
の1ビットと判断するようにしたことを特徴とする空気
調和機の制御方法。2. A predetermined bit which is synchronized with an AC power supply of the air conditioner between an indoor unit and an outdoor unit to operate the air conditioner, and includes one bit for each half-wave of the AC power supply. In the method for controlling an air conditioner that transmits and receives a number of serial signals, when receiving the serial signal, a synchronous signal of a rectangular wave bordering on a zero cross point of the AC power source is obtained, and each half-wave of the AC power source is obtained. After performing the 1-bit reading process at a predetermined time elapse point from the edge of the synchronization signal, the 1-bit reading process is performed a predetermined number of times every time shorter than the predetermined time, and a plurality of 1s read by the process are read. A method for controlling an air conditioner, wherein a bit occupying a large number of bits is determined as one bit of a transmission serial signal.
信号を読み込む回数あるいは前記1ビットを読み込む回
数を奇数とした請求項1または2記載の空気調和機の制
御方法。3. The control method for an air conditioner according to claim 1, wherein the number of times of reading the serial signal or the number of times of reading the one bit is odd for each half-wave of the AC power supply.
同期信号のエッジから所定時間経過および同所定時間よ
り短い時間をそれぞれタイマで計測し、該タイマは当該
制御手段であるマイクロコンピュータの機能で実現した
請求項1または2記載の空気調和機の制御方法。4. In the indoor unit and the outdoor unit, a predetermined time has elapsed from the edge of the synchronization signal and a time shorter than the predetermined time is measured by a timer, and the timer is a function of a microcomputer serving as the control means. The control method for an air conditioner according to claim 1 or 2, which is realized.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9044600A JPH10227510A (en) | 1997-02-13 | 1997-02-13 | Method of controlling air conditioner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9044600A JPH10227510A (en) | 1997-02-13 | 1997-02-13 | Method of controlling air conditioner |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH10227510A true JPH10227510A (en) | 1998-08-25 |
Family
ID=12695957
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9044600A Pending JPH10227510A (en) | 1997-02-13 | 1997-02-13 | Method of controlling air conditioner |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH10227510A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU753916B2 (en) * | 2000-05-23 | 2002-10-31 | Mitsubishi Denki Kabushiki Kaisha | Control circuit for an air conditioner |
-
1997
- 1997-02-13 JP JP9044600A patent/JPH10227510A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU753916B2 (en) * | 2000-05-23 | 2002-10-31 | Mitsubishi Denki Kabushiki Kaisha | Control circuit for an air conditioner |
AU753916C (en) * | 2000-05-23 | 2005-12-22 | Mitsubishi Denki Kabushiki Kaisha | Control circuit for an air conditioner |
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