JPH0468836A - Power line carrier communication system - Google Patents
Power line carrier communication systemInfo
- Publication number
- JPH0468836A JPH0468836A JP2177503A JP17750390A JPH0468836A JP H0468836 A JPH0468836 A JP H0468836A JP 2177503 A JP2177503 A JP 2177503A JP 17750390 A JP17750390 A JP 17750390A JP H0468836 A JPH0468836 A JP H0468836A
- Authority
- JP
- Japan
- Prior art keywords
- address
- station address
- transmitting
- terminal
- transmission
- 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
- 230000005540 biological transmission Effects 0.000 claims abstract description 62
- 238000010586 diagram Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、住宅内等に分散配置された機器を監視したり
遠隔制御するための、ミノＪ線を利用した電力線搬送通
信システムに関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a power line carrier communication system using the Mino J line for monitoring and remotely controlling devices distributed in a house or the like.
（従来の技術）
従来から電力線に搬送波を重畳して情報を伝送する電力
線搬送システムがあり、家庭内に設置した端末機器を集
中制御し、または、その機器の状態をモニタ監視するな
どに使用される。(Prior art) There have been power line carrier systems that transmit information by superimposing carrier waves on power lines, and are used to centrally control terminal equipment installed in homes or to monitor the status of the equipment. Ru.
端末機器（以下、単に端末という）は、自局アドレス設
定スイッチと、他の端末と情報の電文を送受信する通信
手段と、受信した命令に応じて負荷としての端末を接続
（オン）、または開放（オフ）する負荷制御手段と、そ
の端末の状態を検知する負荷状態検知手段とを設けて、
自局アドレスと負荷の端末の状態データを含む電文を送
信するアダプタとにより構成されている。また、上記オ
ン、オフを行わせる機器として上記端末との間で電文を
送受する通信手段と、端末に個別にオン、オフ命令等の
電文の送信要求を行うリモコン操作スイッチと、受信し
た電文のアドレスに応じて、上記端末の電力線に対する
オン、オフの状態を表示する表示灯を設けたコントロー
ラがある。A terminal device (hereinafter simply referred to as a terminal) has a self-station address setting switch, a communication means for transmitting and receiving information messages to and from other terminals, and connects (turns on) or opens the terminal as a load according to the received command. (off) load control means and load state detection means for detecting the state of the terminal,
It consists of an adapter that transmits a message containing the own station address and status data of the loaded terminal. In addition, as a device for turning on and off, there is also a communication means for sending and receiving messages to and from the terminal, a remote control switch that requests the terminal to send messages such as on and off commands, and There is a controller that is provided with an indicator light that displays the on/off state of the terminal with respect to the power line depending on the address.
第５図はそのような、従来の電力線搬送通信システムに
おける構成図である。２１は情報伝送路となる商用交流
の電力線、２２．２３はそれぞれ自局アドレスをＡｄ、
、 Ａｄ、としたアダプタで、それぞれ自局アドレスの
設定スイッチ２４．、２５と、及び端末２６及び２７が
組合されて上記電力線２１に接続されている。また、２
８はコントローラである。FIG. 5 is a block diagram of such a conventional power line carrier communication system. 21 is a commercial AC power line that serves as an information transmission path, 22 and 23 are their own station addresses Ad,
, Ad, and set the own station address setting switch 24. , 25 and terminals 26 and 27 are combined and connected to the power line 21. Also, 2
8 is a controller.
いま、遠隔操作によって端末２６を制御する場合、コン
トローラ２８は、端末２６．２７のアドレスＡｄ、。Now, when controlling the terminal 26 by remote control, the controller 28 uses the address Ad of the terminal 26.27.
Ａｄ、に対応するリモコン操作スイッチ２９．３０のう
ち２９を押下し、それにより制御電文がアドレスＡｄ、
に対して送信され、それを受信するアドレスＡｄ、のア
ダプタ２２に接続されている端末２６が制御される。By pressing 29 of the remote control operation switches 29 and 30 corresponding to the address Ad, the control message is changed to the address Ad,
The terminal 26 connected to the adapter 22 with the address Ad, which receives the message, is controlled.
また、端末２６の状態が変化したときはアダプタ２２が
自局アドレスＡｄ、と負荷の端末２６の状態データを含
む電文をコントローラ２８に送信し、それを受信したア
ドレスＡｄ、を有するコントローラ２８は、アドレスＡ
ｄ、、 Ａｄ、に対応して設けた表示灯３１゜３２の表
示灯３１によって端末２６の状態を表示させる。Further, when the state of the terminal 26 changes, the adapter 22 transmits a telegram containing the own station address Ad and the state data of the loaded terminal 26 to the controller 28, and the controller 28 having the address Ad receives it, Address A
The status of the terminal 26 is displayed by the indicator lights 31 and 32 provided corresponding to the terminals d, , and Ad.
また、アダプタ２２とコントローラ２８が同時に電文を
送信すると、それらの電文が異なる箇所で、電源周期に
同期して周期の前半、後半に対応する信号“０″と“１
″の位置に共に搬送波が重畳されて信号の衝突を来たし
、相手の端末も電文を送信していることが検知されて双
方とも送信を中止し、それぞれの端末またはコントロー
ラの自局アドレス分の送信信号時間の、コントローラ２
８はｌ信号時間、アダプタ２２は１０信号時間だけ待機
し、その間、相手端末からの送信を検知しなければ、電
文を送信し直すことによって何度も、送信が可能になさ
れている。Furthermore, when the adapter 22 and the controller 28 transmit messages at the same time, the signals "0" and "1" corresponding to the first half and second half of the cycle are synchronized with the power supply cycle at different parts of the message.
The carrier waves are superimposed at the `` position, causing a signal collision, and it is detected that the other terminal is also transmitting a message, so both sides stop transmitting, and each terminal or controller transmits its own address. Controller 2 of signal time
The adapter 22 waits for 1 signal time 8 and 10 signal times, and if it does not detect a transmission from the other party terminal during that time, it can transmit the message again and again by retransmitting the message.
（発明が解決しようとする課題）
しかしながら、上記のような構成ではアダプタ２２、あ
るいはコントローラ２８の自局アドレスは、施工業者が
システム施工時に個別に人手で設定しなければならず、
また、その設定が間違うことがあり、一つのアドレスが
複数に用いられ、したがって負荷の状態が正確に表示さ
れず、目的以外の機器が制御されるような問題点があっ
た。(Problem to be Solved by the Invention) However, in the above-described configuration, the home address of the adapter 22 or the controller 28 must be manually set individually by the constructor when constructing the system.
In addition, the settings may be incorrect and one address may be used for multiple purposes, resulting in problems such as the load status not being displayed accurately and equipment other than the intended one being controlled.
本発明は上述したような従来の問題点を排除した、アダ
プタ２２、およびコントローラ２８のアドレスを自動設
定することが可能な電力線搬送通信システムの提供を目
的をする。An object of the present invention is to provide a power line carrier communication system that can automatically set the addresses of the adapter 22 and the controller 28, which eliminates the conventional problems as described above.
（課題を解決するための手段）
本発明は上記の目的を、電力線を介して電文を送受信す
ることができる複数の端末を有し、各端末は送信手段及
び受信手段と、送信手段の送信中に受信手段によって信
号の衝突を検知した場合は、上記送信の待機及び再送信
を指示する第１の通信制御手段と、その送信に用いる自
局アドレスを記憶する自局アドレス記憶手段と、端末を
識別するための互いに異なる識別番号と、仮自局アドレ
ス、自局アドレス宣言コマンド、及び識別番号からなる
自局アドレス宣言電文の送信要求受付手段と、上記送信
手段の送信時に受信手段が信号の衝突を検知したとき、
その送信手段に送信停止を指示する第２の通信制御手段
と、自局アドレス宣言コマンドの電文の送信時には前記
第２の通信制御手段を選択し、送信完了時には送信電文
の仮自局アドレスを自局アドレスとして自局アドレス記
憶手段に記憶させ、また、送信電文が自局アドレス設定
コマンド以外の場合には、上記第１の通信制御手段を選
択する演算手段とにより構成した電力線搬送通信システ
ムによって達成する。(Means for Solving the Problems) The present invention achieves the above object by having a plurality of terminals capable of transmitting and receiving messages via a power line, each terminal having a transmitting means, a receiving means, and a transmitting means. If a collision of signals is detected by the receiving means, the first communication control means instructs the above-mentioned transmission standby and retransmission, the own station address storage means for storing the own station address used for the transmission, and the terminal Collision of signals between receiving means and receiving means when transmitting a self-station address declaration message consisting of mutually different identification numbers for identification, temporary own-station address, own-station address declaration command, and identification number; When detected,
A second communication control means instructs the transmission means to stop transmission, and selects the second communication control means when transmitting the message of the own station address declaration command, and when the transmission is completed, the temporary own address of the transmitted message is sent to the own station. Achieved by a power line carrier communication system configured by storing the station address in the own station address storage means, and calculating means for selecting the first communication control means when the transmitted message is other than the own station address setting command. do.
（作 用）
本発明によれば、自局アドレスの電文の受信により、自
局アドレス宣言電文の送信が要求された端末が、仮に割
当てられた仮自局アドレスと、自局アドレス設定コマン
ドと、端末機器毎に異なる識別番号とからなる自局アド
レス設定電文を、第２の通信制御手段によって送信する
。同時に他の端末も送信を開始すると、仮自局アドレス
、及び自局アドレス設定コマンドも同じため、２つ以上
の端末が送信していても同じ信号が送信されているとき
は、他の端末も送信していることが判らないが、電文中
に有する識別番号の送信時には、それが端末毎に異なっ
ているので、信号衝突が発生して２つ以上の端末の同時
送信が検出されるが、そのとき、送信信号を出力してい
ないときに送信信号を検知し、相手端末が送信している
ことを検知したとき、その検知した端末の方が送信を停
止する。すなわち、送信を停止することなく送信が完了
できた、ただひとつの端末が上記仮自局アＦレスを自局
アドレスとして自局アドレス設定手段に記憶する。(Function) According to the present invention, upon receiving the own address message, the terminal that is requested to send the own address declaration message receives the provisionally assigned temporary own address and the own address setting command. A self-station address setting message consisting of an identification number that is different for each terminal device is transmitted by the second communication control means. If another terminal also starts transmitting at the same time, the temporary own address and own address setting command will be the same, so even if two or more terminals are transmitting, if the same signal is being transmitted, the other terminal will also Although it is not known that the message is being sent, when the identification number in the message is sent, it is different for each terminal, so a signal collision occurs and simultaneous transmission from two or more terminals is detected. At that time, when a transmission signal is detected while the transmission signal is not being output, and the other terminal detects that the other terminal is transmitting, the terminal that detected the transmission stops transmitting. In other words, only one terminal that can complete transmission without stopping transmission stores the temporary own address F as its own address in its own address setting means.
以上の手順を繰返すと、自局アドレス宣言電文以外の、
電文送信時に第１の通信制御手段によって送信される電
文の自局アドレスが自動的にアドレスとして設定される
ことになる。If you repeat the above steps, you will receive messages other than your own address declaration message.
The local station address of the message transmitted by the first communication control means when transmitting the message is automatically set as the address.
（実施例）
以下、実施例により本発明を図面を用いて詳細に説明す
る。(Example) Hereinafter, the present invention will be explained in detail by way of an example using the drawings.
第１図は本発明の一実施例を示すブロック図で、１．２
はそれぞれ端末であり、商用交流の電力線３に接続され
ている。４は受信手段、５は送信手段、６は第１の通信
制御手段である。受信手段４は電源周期に同期して周期
の前半、後半に対応した信号“Ｏ”、または信号“１″
として、電力線３上の第２図（ａ）または（ｂ）に示す
ような構成の電文を受信する。また、送信手段５から電
文の送信中に受信手段４が、１信号時間内に信号” ｏ
”も、′１”も共に受信して、自局の送信信号と異な
る相手端末の送信信号を受信した時は上記送信を中止し
、その端末の自局アドレス分の信号時間たけ待機して、
相手端末の送信が検知されなければ、第１の通信制御手
段６は上記送信手段５に送信のし直しを指示する。FIG. 1 is a block diagram showing one embodiment of the present invention, and 1.2
are terminals, respectively, and are connected to a commercial AC power line 3. 4 is a receiving means, 5 is a transmitting means, and 6 is a first communication control means. The receiving means 4 receives a signal "O" or a signal "1" corresponding to the first half and second half of the cycle in synchronization with the power supply cycle.
As a result, a message having a structure as shown in FIG. 2(a) or (b) on the power line 3 is received. Further, while the transmitting means 5 is transmitting a message, the receiving means 4 receives a signal "o" within one signal time.
When receiving both ``mo'' and ``1'' and receiving a transmission signal from the other terminal that is different from the transmission signal from the own station, the above transmission is stopped, and the terminal waits for the signal time corresponding to the own address of that terminal.
If the transmission from the other party's terminal is not detected, the first communication control means 6 instructs the transmission means 5 to retransmit.
７は第１の通信制御手段６の送信電文のための自局アド
レスを記憶するアドレス記憶手段、８は端末に割当てら
れた識別番号である。また、９は自局アドレス宣言電文
の送信要求受付手段で、自局アドレスが設定されていな
い場合に、アドレスとして機能する仮自局アドレスをデ
ータとするアドレス設定コマンドの電文を判別して、そ
の仮自局アドレスと自局アドレス宣言コマンドと識別番
号８とからなる、自局アドレスの送信要求を受付けるコ
マンド判別手段により構成されている。Reference numeral 7 represents an address storage means for storing the local address for the transmission message of the first communication control means 6, and 8 represents an identification number assigned to the terminal. In addition, 9 is a transmission request receiving means for transmitting a self-station address declaration message, which, when the local station address is not set, determines the message of an address setting command whose data is a temporary local station address that functions as an address, and It is constituted by a command discriminator that accepts a transmission request for the own address, which is composed of a temporary own address, a own address declaration command, and an identification number 8.
またＩＯは第２の通信制御手段であり、電文送信中に１
信号時間内に自局の信号“１″を送信しないうちに相手
端末の送信信号“Ｏ”を受信し、相手端末の送信を検知
すると送信手段５に送信停止を指示する。自局アドレス
設定コマンドの電文の送信時には第２の通信制御手段１
０を選択し、電文の送信完了時には仮自局アドレスを自
局アドレス記憶手段７に記憶し、自局アドレス設定コマ
ンド以外の電文送信時には、第１の通信制御手段６が演
算手段１１によって選択される。In addition, IO is the second communication control means, and 1
Before transmitting its own signal "1" within the signal time, it receives the transmission signal "O" from the other terminal, and when it detects the transmission from the other terminal, it instructs the transmitting means 5 to stop transmission. When transmitting the own station address setting command message, the second communication control means 1
0 is selected, and when the transmission of the message is completed, the temporary own station address is stored in the own station address storage means 7, and when transmitting a message other than the own station address setting command, the first communication control means 6 is selected by the calculation means 11. Ru.
本発明は以上のように構成され、自局アドレスがまだ設
定されていない時に、仮自局アドレスをデータとするア
ドレス自動設定コマンドの電文を、たとえば端末１の受
信手段４がコントローラ（アドレス設定機）から第３図
（ａ）のイに示すように受信し、自局アドレス宣言電文
の送信を、送信要求受付手段９から受付けた端末ｌは、
上記仮自局アドレスを用いて自局アドレス設定電文を第
２の通信制御手段１０によって、仮自局アドレスと自局
アドレス設定コマンドと、識別番号８とから形成した自
局アドレス設定電文を送信手段５がらコントローラに送
信する（同図、口）５、同時に、他の端末２が送信を開
始すると（同図、ハ）、自局アドレスと自局アドレス宣
言コマンドが同じであるから、同じ信号が送信されてい
る間は端末１，２は、相手の端末２または１の同時送信
を検知できないが、端末毎に異なる電文中の識別番号８
の送信時には、送信信号に異なる箇所ができ、■信号時
間内で自局の信号“１“を送信する前に上記他方の端末
１の送信信号“Ｏ”を受信することになり（同図、二）
、それにより、自局以外に他の端末１が送信しているこ
とが検知でき、それを検知した端末２は第２の通信制御
手段】０により送信を停止する。すなわち、常にただ一
つの端末のみが電文を送信することが可能である。第２
の通信制御手段Ｉ○は自局アドレスをアドレス記憶手段
７に記憶する。The present invention is configured as described above, and when the own station address has not been set yet, the receiving means 4 of the terminal 1 receives a telegram of an address automatic setting command with a temporary own station address as data, for example, by the controller (address setting machine). ) as shown in A of FIG.
The second communication control means 10 transmits a self-address setting message using the temporary own-station address, and transmits a own-station address setting message formed from the temporary own-station address, the own-station address setting command, and the identification number 8. 5 to the controller (Fig. 5). At the same time, when another terminal 2 starts transmitting (Fig. During the transmission, terminals 1 and 2 cannot detect the simultaneous transmission of the other terminal 2 or 1, but the identification number 8 in the message, which is different for each terminal.
When transmitting, there will be a different part in the transmitted signal, and the transmitting signal "O" from the other terminal 1 will be received before transmitting the signal "1" from the own station within the signal time (Fig. two)
As a result, it is possible to detect that another terminal 1 other than the own station is transmitting, and the terminal 2 that detects this stops the transmission by the second communication control means ]0. That is, only one terminal can send a message at any time. Second
The communication control means I○ stores its own station address in the address storage means 7.
以後、上記アドレス記憶手段７に記憶された自局アドレ
スが、第１の通信制御手段６によって自局アドレス宣言
電文以外の送信時に、自局アト、レスとして送信され、
自局アドレスが端末に自動設定されることになる。Thereafter, the own station address stored in the address storage means 7 is transmitted by the first communication control means 6 as the own station address and reply when transmitting a message other than the own station address declaration message,
The own station address will be automatically set on the terminal.
以上のように自局アドレスを記憶した端末１゜２が第３
図（ｂ）のように、送信手段５がら同時に自局アドレス
宣言以外の電文を送信し始めると（同図、ホ、ホ′）、
送信信号が異なる箇所で信号゛′○”と“１”の位置（
同図、へ）に搬送波が重畳され信号の衝突となり、それ
により互いに他の端末が同時に電文を送信していること
を検知して端末ｌ。Terminal 1゜2, which has memorized its own station address as described above, becomes the third terminal.
As shown in Figure (b), when the transmitting means 5 simultaneously starts transmitting messages other than self-address declarations (Ho, Ho' in the same figure),
The position of the signal ゛′○” and “1” where the transmitted signals are different (
The carrier wave is superimposed on the signal (f) in the same figure, resulting in signal collision, and as a result, terminal l detects that other terminals are transmitting messages at the same time.
２双方とも送信を中止し、端末１．２の自局アドレス分
をそれぞれの信号時間だけ待機して、その待機の間、相
手端末の送信を検知しなければ、電文を再送して（同図
、ト、ト′）、何度も電文が衝突することなく送信可能
になる。2. Both parties stop transmitting and wait for the respective signal times for the own address of terminal 1 and 2. During this waiting period, if no transmission from the other terminal is detected, the message is retransmitted (as shown in the figure). , g, g'), messages can be sent many times without collision.
第４図は他の実施例の構成図である。FIG. 4 is a block diagram of another embodiment.
１２はコマンド判別手段、１３は仮自局アドレス変更送
信要求手段であり、その他の符号は第１図の説明を援用
する。Reference numeral 12 denotes a command discriminating means, 13 a temporary host address change transmission requesting means, and the other symbols refer to the explanations in FIG. 1.
コマンド判別手段１２は、自局アドレスが設定されてい
ない時に機能するアドレス設定コマンドの電文を判別し
て、仮自局アドレスを初期値から、たとえばＯから順に
仮自局アドレスと自局アドレス宣言コマンドと識別番号
８とからなる自局アドレス宣言電文の送信要求を受付け
る。The command determining means 12 determines the message of the address setting command that functions when the own station address is not set, and sets the temporary own address from the initial value, for example from O, to the temporary own address and the own address declaration command. and identification number 8.
また、仮自局アドレス変更送信要求手段１３は、第２の
通信制御手段ｌＯの制御により電文の送信を停止したと
きには仮自局アドレスを、たとえば、１つずつ加減して
仮自局アドレスを変更し、自局アドレスの宣言電文を送
信要求する。Further, when the transmission of the message is stopped under the control of the second communication control means 1O, the temporary own address change transmission request means 13 changes the temporary own address by adding or subtracting the temporary own address one by one, for example. and requests transmission of a declaration message for its own station address.
これらコマンド判別手段１２と仮自局アドレス変更送信
要求手段１３の送信要求は、自局アドレス宣言電文送信
要求受付手段９によって受付けられる。These transmission requests from the command discriminating means 12 and the temporary own station address change transmission requesting means 13 are accepted by the own station address declaration message transmission request receiving means 9.
以上の構成において、受信手段４からアドレス自動設定
コマンドの電文を受信して、コマンド判別手段１２から
自局アドレス宣言電文の送信を要求された端末が、自局
アドレス設定の初期値の自局アドレスを使用して自局ア
ドレス設定電文を第２の通信制御手段ｌＯによって送信
開始する。In the above configuration, the terminal that receives the address automatic setting command message from the receiving means 4 and is requested to transmit the own station address declaration message by the command determining means 12 receives the own station address of the initial value of the own station address setting. Using this, the second communication control means IO starts transmitting the local station address setting message.
同時に他の端末も送信を開始すると、第１の実施例と同
様に仮自局アドレスが同じで、自局アドレス宣言コマン
ドも同じでも、電文中の識別番号８が端末ごとに異なっ
ているため、２つ以上の端末が送信していることが判る
。また、第１の実施例と同様に、電文送信中に１信号時
間内に自局の信号“ｌ”を送信４しないうちに相手端末
の送信信号“Ｏ′′を受信し、相手端末の送信を確認す
ると、第２の通信制御手段ｌＯの制御により送信が停止
されていくので、常に、一つの端末のみが送信を遂行す
ることができ、そのときの自局アドレスはアドレス記憶
手段７に記憶される。When other terminals start transmitting at the same time, even if the temporary own address is the same and the own address declaration command is the same as in the first embodiment, the identification number 8 in the message is different for each terminal. It can be seen that two or more terminals are transmitting. Similarly to the first embodiment, during message transmission, the transmission signal "O" from the other terminal is received before the signal "l" of the own station is transmitted within one signal time, and the transmission signal of the other terminal is transmitted. When this is confirmed, transmission is stopped under the control of the second communication control means 1O, so that only one terminal can perform transmission at any time, and the own station address at that time is stored in the address storage means 7. be done.
第２の通信制御手段１０により送信開始までに送信を停
止した端末は、仮自局アドレス変更送信要求手段１３に
より、仮自局アドレスを、たとえば１つずつ増加させて
変更し、自局アドレスの宣言電文を送信要求し、それを
送信要求受付手段９が受付け、仮自局アドレスを用いて
自局アドレス設定文を第２の通信制御手段１０によって
送信開始する。A terminal that has stopped transmission before starting transmission by the second communication control means 10 changes its temporary own address by incrementing it by one, for example, by using the temporary own address change transmission request means 13, and changes the own address by increasing the temporary own address by one. A transmission request for a declaration message is made, the transmission request accepting means 9 accepts it, and the second communication control means 10 starts transmitting a self-station address setting message using the temporary own-station address.
以後、各端末は自局アドレス宣言電文以外の電文の送信
時には、第１の通信制御手段６によってアドレス記憶子
′段７に記憶された上記仮自局アドレスを自局アドレス
とした電文を送信し、自局アドレスが記憶された端末は
第１の実施例と同様にして電文の衝突回数が少なくなる
ように送信される。Thereafter, when each terminal transmits a message other than its own address declaration message, it transmits a message in which the temporary own address stored in the address memory stage 7 is set as the own address by the first communication control means 6. , the terminal whose own station address is stored transmits messages in a manner similar to the first embodiment so as to reduce the number of message collisions.
以上、２つの実施例により本発明を説明したが、電源周
期に同期して周期の前半、後半に対応して信号“０”ｌ
”とする電文を受信したが、たとえば、電源周期に非同
期に、単位時間が信号“０”単位時間２が信号“１″、
同３が“スタート”、同４以上が“エンド”とする、搬
送波の有無を繰返す定義として、自局アドレス宣言電文
以外の送信中に自局が搬送波を出力していないうちに、
相手の搬送波を検出すれば信号衝突を検出したとして、
“エンド”信号の４以上を送信して、双方とも送信を中
止して再送し、自局アドレス宣言電文の送信中に、自局
が搬送波を出力していないうちに、搬送波を検出すれば
信号衝突を検出したとして送信を停止する等、信号衝突
を検知して送信中止、送信停止ができる信号により構成
してもよい。The present invention has been described above with reference to two embodiments, and the signal "0" is synchronized with the power supply cycle and corresponds to the first half and second half of the cycle.
”, but for example, asynchronously with the power supply cycle, the unit time is “0”, the unit time 2 is signal “1”,
As a definition of repeating the presence or absence of a carrier wave, where 3 is the "start" and 4 or more is the "end", while the own station is not outputting a carrier wave while transmitting anything other than the own station address declaration message,
If the carrier wave of the other party is detected, it is assumed that a signal collision has been detected.
After transmitting 4 or more of the "end" signals, both sides stop transmission and retransmit, and if the carrier is detected while the own station is not outputting the carrier while transmitting the own station address declaration message, the signal is sent. It may be configured with a signal that can detect a signal collision and stop the transmission, such as stopping the transmission when a collision is detected.
（発明の効果）
以上説明して明らかなように本発明は、自局アドレス宣
言電文の送信時は、送信衝突勝ち残りとすることによっ
て、端末機器毎に異なる桁数の多い識別番号から、装置
に適切な桁数の自局アドレスが自動的に設定され、また
、自局アドレス宣言電文以外の電文の送信時に信号衝突
が検出された場合の、再送開始待ち時間を端末それぞれ
の自局アドレスとすれば、再び信号の衝突がなく、また
、双方とも再送信することになり、それによって信頼性
の高い通信装置となる。また、再送までの待ち時間も桁
数の少ない自局アドレスの値として構成でき実施して大
きな効果が享受できる。(Effects of the Invention) As is clear from the above description, the present invention allows a device to receive an identification number from a large number of digits, which differs from terminal device to terminal device, by determining the winner of the transmission collision when transmitting the self-station address declaration message. A host address with an appropriate number of digits is automatically set, and if a signal collision is detected when transmitting a message other than the own address declaration message, the wait time for starting retransmission is set as the own address of each terminal. In this case, there will be no signal collision again, and both will retransmit, resulting in a highly reliable communication device. Further, the waiting time until retransmission can be configured as a value of the local address with a small number of digits, and a great effect can be obtained when implemented.
第１図は本発明の一実施例のブロック構成図、第２図は
要部の電文を示す図、第３図は送信動作を示す図、第４
図は他の実施例のブロック構成図、第５図は従来例のブ
ロック構成図である。
１．２・・・端末、 ３・・・電力線、 ４・・―
受信手段、 ５・・・送信手段、 ６・・・第１の
通信制御手段、 ７・・・アドレス記憶手段、８・・・
識別番号、 ９・・・送信要求受付手段、１０・・・第
２の通信制御手段、 １１・・・演算手段、 １２・・
コマンド判別手段、 １３・・・仮自局アドレス変更送
信要求手段。
特許出願人 松下電器産業株式会社
第２図
第１図
第
図
第
図
２１ 電力線Fig. 1 is a block configuration diagram of an embodiment of the present invention, Fig. 2 is a diagram showing the main part of the message, Fig. 3 is a diagram showing the transmission operation, and Fig. 4 is a diagram showing the transmission operation.
The figure is a block diagram of another embodiment, and FIG. 5 is a block diagram of a conventional example. 1.2...terminal, 3...power line, 4...-
Receiving means, 5... Transmitting means, 6... First communication control means, 7... Address storage means, 8...
Identification number, 9... Transmission request receiving means, 10... Second communication control means, 11... Calculating means, 12...
Command determination means; 13...Temporary host address change transmission request means; Patent applicant Matsushita Electric Industrial Co., Ltd. Figure 2 Figure 1 Figure 21 Power line
Claims (1)
末を有し、各端末は送信手段及び受信手段と、送信中に
信号の衝突を検知した場合は、上記送信の待機及び再送
信を指示する第１の通信制御手段と、その送信に用いる
自局アドレスを記憶する自局アドレス記憶手段と、端末
を識別するための互いに異なる識別番号と、仮自局アド
レス、自局アドレス宣言コマンド、及び識別番号からな
る自局アドレス宣言電文の送信要求受付手段と、上記送
信手段の送信時に受信手段が信号の衝突を検知したとき
、その送信手段に送信停止を指示する第２の通信制御手
段と、自局アドレス宣言コマンドの電文の送信時には前
記第２の通信制御手段を選択し、送信完了時には送信電
文の仮自局アドレスを自局アドレスとして自局アドレス
記憶手段に記憶させ、また、送信電文が自局アドレス設
定コマンド以外の場合には、上記第１の通信制御手段を
選択する演算手段とにより構成したことを特徴とする電
力線搬送通信システム。It has a plurality of terminals capable of transmitting and receiving messages via a power line, and each terminal has a transmitting means and a receiving means, and if a collision of signals is detected during transmission, it instructs the above transmission to wait and retransmit. a first communication control means; a own-station address storage means for storing a own-station address used for transmission; mutually different identification numbers for identifying terminals; a temporary own-station address; a own-station address declaration command; and an identification number. means for receiving a request to send a self-station address declaration message consisting of a number; second communication control means for instructing the transmitting means to stop transmitting when the receiving means detects a collision of signals during transmission by the transmitting means; When transmitting the message of the station address declaration command, the second communication control means is selected, and when the transmission is completed, the temporary own-station address of the transmitted message is stored as the own-station address in the own-station address storage means, and the transmitted message is A power line carrier communication system comprising a calculation means for selecting the first communication control means in cases other than a station address setting command.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2177503A JP2710073B2 (en) | 1990-07-06 | 1990-07-06 | Power line carrier communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2177503A JP2710073B2 (en) | 1990-07-06 | 1990-07-06 | Power line carrier communication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0468836A true JPH0468836A (en) | 1992-03-04 |
| JP2710073B2 JP2710073B2 (en) | 1998-02-10 |
Family
ID=16032047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2177503A Expired - Fee Related JP2710073B2 (en) | 1990-07-06 | 1990-07-06 | Power line carrier communication system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2710073B2 (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11163813A (en) * | 1997-09-26 | 1999-06-18 | Technical Maintenance Corp | Digital radio transmission system for speaker |
| KR20030024260A (en) * | 2001-09-17 | 2003-03-26 | 주식회사 플레넷 | Subnet of power line communication network, method for setting up the same, electronic appliance connected to the same and, communication module used in the same |
| KR100379141B1 (en) * | 1999-07-13 | 2003-04-08 | 가부시키가이샤 요잔 | Communication equipment realizing easy communication between apparatus |
| KR100562380B1 (en) * | 2001-09-17 | 2006-03-20 | 주식회사 플레넷 | Method for joining node into subnet of power line communication network, electronic appliance connected to subnet and, communication module used in electronic appliance |
| US7298759B2 (en) | 2002-04-17 | 2007-11-20 | Electronics And Telecommunications Research Institute | Apparatus for generating time slot in home network system and method thereof |
| JP2008123051A (en) * | 2006-11-08 | 2008-05-29 | Sony Corp | Power supply system, power supply method, and power supply program |
| WO2008117553A1 (en) | 2007-03-26 | 2008-10-02 | Sharp Kabushiki Kaisha | Power line communication system and power line communication device |
| JP2009036586A (en) * | 2007-07-31 | 2009-02-19 | Yamaha Corp | Power supply rail and position management system |
| JP2010283887A (en) * | 1996-10-21 | 2010-12-16 | Mosaid Technologies Inc | Distributed serial control system |
| JP2011100491A (en) * | 2011-02-07 | 2011-05-19 | Sony Corp | Apparatus and method for processing information and computer program |
| JP2012150117A (en) * | 2012-02-13 | 2012-08-09 | Yamaha Corp | Power supply rail and position managing system |
| US9049028B2 (en) | 2007-10-31 | 2015-06-02 | Sony Corporation | Power supplying system, monitoring apparatus, monitoring method and computer program |
-
1990
- 1990-07-06 JP JP2177503A patent/JP2710073B2/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010283887A (en) * | 1996-10-21 | 2010-12-16 | Mosaid Technologies Inc | Distributed serial control system |
| JP2008072752A (en) * | 1997-09-26 | 2008-03-27 | Touchtunes Music Corp | Digital transmission system for loudspeaker |
| JPH11163813A (en) * | 1997-09-26 | 1999-06-18 | Technical Maintenance Corp | Digital radio transmission system for speaker |
| KR100379141B1 (en) * | 1999-07-13 | 2003-04-08 | 가부시키가이샤 요잔 | Communication equipment realizing easy communication between apparatus |
| KR100562380B1 (en) * | 2001-09-17 | 2006-03-20 | 주식회사 플레넷 | Method for joining node into subnet of power line communication network, electronic appliance connected to subnet and, communication module used in electronic appliance |
| KR20030024260A (en) * | 2001-09-17 | 2003-03-26 | 주식회사 플레넷 | Subnet of power line communication network, method for setting up the same, electronic appliance connected to the same and, communication module used in the same |
| US7298759B2 (en) | 2002-04-17 | 2007-11-20 | Electronics And Telecommunications Research Institute | Apparatus for generating time slot in home network system and method thereof |
| JP2008123051A (en) * | 2006-11-08 | 2008-05-29 | Sony Corp | Power supply system, power supply method, and power supply program |
| WO2008117553A1 (en) | 2007-03-26 | 2008-10-02 | Sharp Kabushiki Kaisha | Power line communication system and power line communication device |
| JP2009036586A (en) * | 2007-07-31 | 2009-02-19 | Yamaha Corp | Power supply rail and position management system |
| US9049028B2 (en) | 2007-10-31 | 2015-06-02 | Sony Corporation | Power supplying system, monitoring apparatus, monitoring method and computer program |
| JP2011100491A (en) * | 2011-02-07 | 2011-05-19 | Sony Corp | Apparatus and method for processing information and computer program |
| JP2012150117A (en) * | 2012-02-13 | 2012-08-09 | Yamaha Corp | Power supply rail and position managing system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2710073B2 (en) | 1998-02-10 |
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