JPS61252723A - Signal transmission system for distribution line - Google Patents
Signal transmission system for distribution lineInfo
- Publication number
- JPS61252723A JPS61252723A JP60093700A JP9370085A JPS61252723A JP S61252723 A JPS61252723 A JP S61252723A JP 60093700 A JP60093700 A JP 60093700A JP 9370085 A JP9370085 A JP 9370085A JP S61252723 A JPS61252723 A JP S61252723A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- station
- address
- slave station
- distribution line
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/121—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using the power network as support for the transmission
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は配電線信号の伝送方式、特に配電線に送信局
と多数の受信局を接続し該配電線を介して送信局から受
信局へ信号を伝送する配電線信号伝送方式に関するもの
である。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a distribution line signal transmission method, in particular, to a distribution line that connects a transmitting station and a large number of receiving stations, and from the transmitting station to the receiving station via the distribution line. The present invention relates to a distribution line signal transmission method for transmitting signals.
第４図はたとえば特開昭５７−２８４３５号公報に示さ
れた従来の配電線信号伝送方式を示す説明図であシ、１
は配電線、２は送信局としての親局ｂ３ＡＩ３Ｂは受信
局としての子局である。FIG. 4 is an explanatory diagram showing a conventional distribution line signal transmission method disclosed in, for example, Japanese Patent Application Laid-Open No. 57-28435.
2 is a power distribution line, and 2 is a master station b3AI3B serving as a transmitting station and a slave station serving as a receiving station.
次に動作について説明する。親局２からたとえば子局３
Ｂに向けて送信された信号は、配電線１を経由して子局
３Ｂで受信される。また、上記とは反対に子局３Ｂから
親局２に向けて送信された信号は、配電線１を経由して
親局２で受信される。Next, the operation will be explained. For example, from master station 2 to slave station 3
The signal transmitted toward B is received by the slave station 3B via the power distribution line 1. Further, in contrast to the above, a signal transmitted from the slave station 3B to the master station 2 is received by the master station 2 via the power distribution line 1.
従来の配電線信号伝送方式は上記のようにして情報伝送
を行なっているので、親局と子局の距離が離れているな
どの理由で配電線による信号の減衰の大きい場合は、信
号が送りたい相手局まで届かないという問題点があった
。The conventional power distribution line signal transmission method transmits information as described above, so if the signal is attenuated by the power distribution line due to reasons such as the distance between the master station and slave station, the signal will not be transmitted properly. There was a problem in that it could not reach the target station.
この発明は上記のような問題点を解消するためになされ
たもので、送信局と受信局の距離が離れているなどの理
由で配電線による信号の減衰が大きい場合でも、信号の
送受信が確実に行なわれる配電線信号伝送方式を得るこ
とを目的とする。This invention was made to solve the above-mentioned problems, and even if the signal attenuation due to the distribution line is large due to the distance between the transmitting station and the receiving station, it is possible to reliably transmit and receive signals. The purpose of this study is to obtain a distribution line signal transmission system that is used in
この発明に係る配電線信号伝送方式は、子局に伝送され
る信号の中継機能をもたせたものである。The distribution line signal transmission system according to the present invention has a function of relaying signals transmitted to slave stations.
この発明における親局は子局に向けて信号を送信すると
き、信号を中継すべき子局のアドレスをいくつか指定す
ると、信号は指定されたアドレスをもつ子局で中継され
て目的の受信子局まで伝送される。When the master station in this invention transmits a signal to a slave station, it specifies several addresses of the slave stations to which the signal should be relayed, and the signal is relayed by the slave station with the specified addresses and sent to the intended receiver. It is transmitted to the station.
以下、この発明の一実施例を図について説明する。第１
図において、１は高圧または低圧の配電線、２は配電線
１に接続された送信局としての親局で、この親局は第２
図に示すように、モデム２１゜ＣＰＵ２２．メモリ２３
．フィルタ２４．アンプ２５、信号結合用インピーダン
ス２６とで構成すれている。３Ａ〜３Ｃは配電線１に接
続された信号中継機能を有する受信局としての子局で、
この子局は上記親局と同じ構成である。An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, 1 is a high-voltage or low-voltage distribution line, 2 is a master station as a transmitting station connected to the distribution line 1, and this master station is a second
As shown in the figure, the modem 21° CPU 22. memory 23
．． Filter 24. It consists of an amplifier 25 and a signal coupling impedance 26. 3A to 3C are slave stations as receiving stations connected to the distribution line 1 and having a signal relay function.
This slave station has the same configuration as the master station.
いま、中央局（図示せず）から親局２に「信号Ｓを子局
３Ｃに伝えよ」という命令がでたとする。Now, suppose that a command is issued from the central station (not shown) to the master station 2 to "transmit the signal S to the slave station 3C."
親局２は子局の並んでいる順番をメモリ２３に記憶して
おｐ、子局３Ｃより親局２側にあるのは子局３ Ａ＋子
局３Ｂだと判断し、ＣＰＵ２２のＳ／Ｗ（図示せず）に
より伝送すべき信号に加えて誤信号が経由すべき子局３
Ａ、３Ｂのアドレスをのせた［３ｍ、３ｂ、３ａｉ８］
という信号につくる。The master station 2 stores the order in which the slave stations are lined up in the memory 23, determines that the slave stations 3A and 3B are closer to the master station 2 than the slave station 3C, and the CPU 22's S/W In addition to the signal to be transmitted by the slave station 3 (not shown), the erroneous signal should pass through.
Added addresses of A and 3B [3m, 3b, 3ai8]
Create a signal that says.
実際にば（や、や；や〕の部分＃：ｃあるきまった「１
」と「０」からなる信号を対応させる。In fact, the part #:c is ``1''.
” and a signal consisting of “0” are made to correspond.
ここで、〔〕内の最初の文字３ ａ ｆｆ １番目に中
継されるべき子局３Ａのアドレス、〔〕内の二番目の文
字３ ｂＦｉ２番目に中継されるべき子局３Ｂのアドレ
ス、〔〕内でセミコロンより前の部分中量後の文字３０
は受信局３Ｃのアドレス、セミコロンより後の部分ｓＨ
信号内容を表わす。Here, the first character in [ ] 3 a ff The address of the slave station 3A to be relayed first, the second character in [ ] 3 bFi The address of the slave station 3B to be relayed second, [ ] The character 30 after the part before the semicolon in
is the address of receiving station 3C, the part after the semicolon sH
Indicates the signal content.
つぎに、第３図のフローチャートに基づいて、子局にお
ける信号の受信する動作を説明する。まず、子局は信号
のアドレス部を受信しくステップ３−１）、その信号の
１番目のアドレスが自局のものであるか否かを判断しく
ステップ３−２）、一番目の中継アドレス３ｍをもつ子
局３Ａでのみ受信される（ステップ３−３）。子局３Ａ
Ｕ一旦受信信号をメモリに記憶し、受信信号の最終アド
レスが自局のものであるか否かを判断しくステップ””
”）ｓ 自局のものでなければ一番目のアドレス３１を
消去して（３ｂ、３ｏ；８）という信号を新たに子局３
Ａから送信する（ステップ３−５）。この信号（３ｂ、
３ａｉＳ）はっぎの子局３Ｂで受信された後、子局３Ｂ
から（３ａ；Ｓ）という信号が新たに送信される。この
信号〔３ｃ；Ｓ〕を受信した子局３Ｃは最後アドレス３
ｏが自局のものであることを判別しＳという信号を受信
するだけで送信はしない。っまり、受信動作を終了する
。Next, the signal receiving operation in the slave station will be explained based on the flowchart in FIG. First, the slave station receives the address part of the signal (step 3-1), determines whether the first address of the signal is its own station (step 3-2), and the first relay address 3m. It is received only by the slave station 3A having the following information (step 3-3). Slave station 3A
Step 1: Store the received signal in memory and determine whether the final address of the received signal belongs to your own station.
”)s If it does not belong to the own station, delete the first address 31 and send a new signal (3b, 3o; 8) to the slave station 3.
Transmit from A (step 3-5). This signal (3b,
3aiS) After being received by Haggi's slave station 3B, the slave station 3B
A new signal from (3a;S) is transmitted. The slave station 3C that received this signal [3c;S] has the last address 3.
It determines that o belongs to its own station and only receives the signal S, but does not transmit it. When this happens, the reception operation ends.
この実施例ではアドレスによって中継する子局を指定す
る例を示したが、アドレスのかわりに信号周波数によっ
て中継する子局を指定しても良い。Although this embodiment shows an example in which the slave station to be relayed is specified by the address, the slave station to be relayed may be specified by the signal frequency instead of the address.
以上のように、この発明によれば、信号を伝送する配電
線に接続され九多数の各子局に中継機能をもたせたので
、配電線による信号の減衰を気にせず、送信局としての
親局から遠く離れた受信局としての子局まで信号を確実
に伝送することができるという効果がある。As described above, according to the present invention, each of the nine slave stations connected to the power distribution line that transmits the signal has a relay function, so that it can be used as a transmitting station without worrying about signal attenuation due to the power distribution line. This has the effect that signals can be reliably transmitted from the master station to the slave stations that are far away as receiving stations.
第１図はこの発明の一実施例による配電線信号伝送方式
のブロック図、第２図は親局の構成を示すブロック図、
第３図は受信動作を説明するフローチャート、第４図は
従来の配電線信号伝送方式のブロック図である。
１は配電線、２は送信局（親局）、３Ａ〜３ｃは受信局
（子局）。
なお１図中、同一符号は同−又は相当部分を示す。
特許出願人 三菱電機株式会社
第１図
２：箆 局
３Ａ、３Ｂ、３Ｃ：子局
第４図
手続補正書（自発）
１□１６０工８．２！ ８FIG. 1 is a block diagram of a distribution line signal transmission system according to an embodiment of the present invention, FIG. 2 is a block diagram showing the configuration of a master station,
FIG. 3 is a flowchart explaining the reception operation, and FIG. 4 is a block diagram of a conventional power distribution line signal transmission system. 1 is a power distribution line, 2 is a transmitting station (master station), and 3A to 3c are receiving stations (slave stations). In addition, in FIG. 1, the same reference numerals indicate the same or corresponding parts. Patent applicant: Mitsubishi Electric Corporation Figure 1 2: Stations 3A, 3B, 3C: Sub-stations Figure 4 Procedural amendment (voluntary) 1□160 work 8.2! 8
Claims (1)
て送信局から受信局へ信号を伝送する配電線信号伝送方
式において、前記各受信局に信号伝送の中継機能をもた
せたことを特徴とする配電線信号伝送方式。In a distribution line signal transmission system in which a transmitting station and a large number of receiving stations are connected to a distribution line and signals are transmitted from the transmitting station to the receiving stations via the distribution line, each receiving station is provided with a relay function for signal transmission. A distribution line signal transmission system featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60093700A JPS61252723A (en) | 1985-05-02 | 1985-05-02 | Signal transmission system for distribution line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60093700A JPS61252723A (en) | 1985-05-02 | 1985-05-02 | Signal transmission system for distribution line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61252723A true JPS61252723A (en) | 1986-11-10 |
Family
ID=14089676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60093700A Pending JPS61252723A (en) | 1985-05-02 | 1985-05-02 | Signal transmission system for distribution line |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61252723A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02123932A (en) * | 1988-11-01 | 1990-05-11 | Shikoku Keisoku Kogyo Kk | Centralized control system for distribution line |
| JPH02284529A (en) * | 1989-04-25 | 1990-11-21 | Nissin Electric Co Ltd | Distribution line carrier equipment |
-
1985
- 1985-05-02 JP JP60093700A patent/JPS61252723A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02123932A (en) * | 1988-11-01 | 1990-05-11 | Shikoku Keisoku Kogyo Kk | Centralized control system for distribution line |
| JPH02284529A (en) * | 1989-04-25 | 1990-11-21 | Nissin Electric Co Ltd | Distribution line carrier equipment |
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