JPH07123240B2 - Power line carrier - Google Patents
Power line carrierInfo
- Publication number
- JPH07123240B2 JPH07123240B2 JP6273086A JP6273086A JPH07123240B2 JP H07123240 B2 JPH07123240 B2 JP H07123240B2 JP 6273086 A JP6273086 A JP 6273086A JP 6273086 A JP6273086 A JP 6273086A JP H07123240 B2 JPH07123240 B2 JP H07123240B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- power line
- power
- drive
- line carrier
- 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.)
- Expired - Lifetime
Links
Landscapes
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Description
【発明の詳細な説明】 （イ）産業上の利用分野 本発明は、電力線を使用してデータを送る電力線搬送装
置における電力線への搬送結合技術に関する。TECHNICAL FIELD The present invention relates to a carrier coupling technique to a power line in a power line carrier device for transmitting data using a power line.
（ロ）従来の技術 データを周波数変調して電力線に結合する入力データ信
号を波形成型回路にて方形波に整形し、ドライブパルス
発生回路にて前記方形波を２相に分割微分し、そのパル
ス波形をドライブ回路にて電力増幅し、１次並列同調回
路と２次直列同調回路とを介して電力線に結合するパル
スドライブ方式とした電力線搬送装置がある。(B) Conventional technology An input data signal that is frequency-modulated with data and coupled to a power line is shaped into a square wave by a waveform shaping circuit, and the square wave is divided and differentiated into two phases by a drive pulse generation circuit, and the pulse is generated. There is a power line carrier device of a pulse drive type in which a waveform is power-amplified by a drive circuit and coupled to a power line through a primary parallel tuning circuit and a secondary series tuning circuit.
（ハ）発明が解決しようとする問題点 電力線を使用してデータを搬送する装置では、時間帯に
よって電力線に接続させる負荷は当然のこととして変動
し、またノイズ環境も大巾に変化することがあり、その
ような場合搬送通信の状態が悪化したり、通信が不能と
なることもありその改善方策が要望されていた。(C) Problems to be Solved by the Invention In a device that carries data using a power line, the load connected to the power line may naturally change depending on the time of day, and the noise environment may change drastically. However, in such a case, the state of carrier communication may be deteriorated or communication may be disabled, and a measure for improving the situation has been demanded.
（ニ）問題点を解決するための手段 本発明は前記問題点を解決するため、電力線に接続され
る負荷の変動やノイズ環境が大巾に変化する場合、親局
がボーリングアドレスと共にパワーコントロールデータ
を子局に送り、ノイズ負荷の小さい時は最小パワーにて
通信し、搬送状態が悪化して通信が困難になった場合は
必要に応じて順次パワーアップし、確実に通信の出来る
ようにした。(D) Means for Solving the Problems In order to solve the above problems, the present invention, in the case where the load connected to the power line fluctuates or the noise environment changes drastically, causes the master station to perform power control data together with the boring address. To the slave station and communicate with the minimum power when the noise load is small, and when communication becomes difficult and communication becomes difficult, the power is sequentially increased as necessary to ensure reliable communication. .
（ホ）作用 第１図は本発明の子局の構成図である。電力線の負荷の
変動やノイズ環境が大巾に変化しない場合にはドライブ
パルス発生回路（１）は第３図（10）の如き構成で実施
できる。本発明にかゝわる電力線の負荷の変動やノイズ
環境が大巾に変化する場合においては、ドライブパルス
発生回路（１）は第２図（100）にて実施する。第１図
において（２）は波形整形回路、（３）はドライブ回
路、（４）は１次並列同調回路、（５）は２次直列同調
回路、（６）は電力線、（７）は受信回路で本発明の
（１）ドライブパルス発生回路の詳細を第２図に示す。
第２図（100）ドライブパルス発生回路において、（10
1）はアナログスイッチで（102）受信データラッチ回路
で制御される２回路アナログスイッチである。(E) Operation FIG. 1 is a block diagram of the slave station of the present invention. The drive pulse generating circuit (1) can be configured as shown in FIG. 3 (10) when the fluctuation of the load on the power line and the noise environment do not change significantly. In the case where the load fluctuation of the electric power line and the noise environment greatly change according to the present invention, the drive pulse generating circuit (1) is implemented in FIG. 2 (100). In FIG. 1, (2) is a waveform shaping circuit, (3) is a drive circuit, (4) is a primary parallel tuning circuit, (5) is a secondary series tuning circuit, (6) is a power line, and (7) is reception. FIG. 2 shows details of the drive pulse generating circuit (1) of the present invention.
In Fig. 2 (100) Drive pulse generator, (10
Reference numeral 1) is an analog switch, which is a two-circuit analog switch controlled by the (102) reception data latch circuit.
（102）受信データラッチ回路は、第１図（７）受信回
路で受けた親局（Ａ）から制御コードでアナログスイッ
チ（101）の２回路をコントロールし、かつその状態を
ラッチする回路。２回路のアナログスイッチ（101）の
動作によりシュミットトリガ（103）の入力の微分回路
Ｒ、ＣのＲはR1、R1R2、R1R3、R1R2R3の４段階
に切換えられて第４図（Ｃ）及び（ｄ）のパルス巾を加
減し、第１図（３）ドライブ回路のパワーが増減され
る。第４図は第１図（ａ）〜（ｅ）の各点の電圧波形を
示し、（C1）〜（e1）はパワーアップしてパルス巾が変
り搬送波形の変化の状態を示す。(102) The reception data latch circuit is a circuit for controlling two circuits of the analog switch (101) with a control code from the master station (A) received by the reception circuit in FIG. 1 (7) and latching the state. By the operation of the analog switch (101) of two circuits, the differential circuit R, C of the input of the Schmitt trigger (103) becomes R 1 , R 1 R 2 , R 1 R 3 and R 1 R 2 R 3 in 4 stages. The pulse widths of FIGS. 4 (C) and 4 (d) are switched to adjust the power of the drive circuit of FIG. 1 (3). FIG. 4 shows voltage waveforms at respective points in FIGS. 1 (a) to (e), and (C 1 ) to (e 1 ) show a state in which the pulse width is changed by powering up and the carrier waveform is changed.
（ヘ）実施例 本発明の初期状態においては、親局（Ａ）はまず子局
（Ｂ）に対して最少パワーを制御コードで指定し子局か
らの応答を待つ。もし応答が無ければ親局側にて１段階
パワーアップを行い、その状態で子局に対して１段階パ
ワーアップ指令制御コードを発信し再度子局から応答を
待つ。この操作を最高の４段階目までパワーアップして
子局応答を受信するまで順次繰返し行う。もし最高の４
段階目までパワーアップでも子局の応答が無ければ、異
常とみなし親局側にてエラーカウンタ（図面を省略）を
プラス１するなどして異常データ処理をない、次の子局
（Ｃ）に移る。以下順次（Ｎ）まで同様の操作を行って
通信を行う。(F) Embodiment In the initial state of the present invention, the master station (A) first designates the minimum power to the slave station (B) with a control code and waits for a response from the slave station. If there is no response, the master station performs one-step power-up, sends a one-step power-up command control code to the slave station in that state, and waits for a response from the slave station again. This operation is repeated up to the maximum of the fourth step until the slave station response is received. If the best 4
If there is no response from the slave station even after powering up to the stage, it is considered to be abnormal and the master station side increments the error counter (not shown) by 1 and does not perform abnormal data processing. Move. Thereafter, the same operation is sequentially performed until (N) to perform communication.
（ト）発明の効果 電力線を使用してデータを送る周波数変調方式電力線搬
送装置において、電力線の負荷又はノイズ環境の変化が
あった場合においても安定した搬送通信ができ、親局
（Ａ）からのボーリングの最初は必ず最少パワーで初
め、通常は９割位の応答があるため最少電力最少輻射で
搬送通信が出来、必要に応じて最少パワーから順次上げ
てゆくので最適状態かつ他機器への影響極少でコントロ
ール出来るので、効率の良い電力線搬送通信が可能とな
った。(G) Effect of the Invention In a frequency modulation type power line carrier device that transmits data using a power line, stable carrier communication can be performed even when there is a change in the load or noise environment of the power line, At the beginning of boring, the minimum power is always started, and usually 90% of the response is available, so carrier communication can be performed with the minimum power and the minimum radiation, and the power is sequentially increased from the minimum power as necessary, so it is in the optimum state and affects other devices. Since it can be controlled with an extremely small amount, efficient power line carrier communication has become possible.
第１図は本発明電力線搬送装置の子局の構成図。第２図
はドライブパルス発生回路の詳細図。第３図は別のドラ
イブパルス発生回路、第４図は第１図各点の波形図。第
５図はシステム全体のブロック図。 （１）……ドライブパルス発生回路 （２）……波形整形回路 （３）……ドライブ回路 （４）……１次並列同調回路 （５）……２次直列同調回路 （６）……電力線 （７）……受信回路 （10）……ドライブパルス発生回路 （11）……シュミットトリガ （12）……NORゲート （13）……NANDゲート （100）……ドライブパルス発生回路 （101）……アナログスイッチ （102）……受信データラッチ回路 （103）……シュミットトリガ （104）……NANDゲート （105）……NANDゲート （ａ）〜（ｅ）及び（c1）〜（e1）……各点及びその波
形図 （Ａ）……親局 （Ｂ）、（Ｃ）〜（Ｎ）……子局FIG. 1 is a block diagram of a slave station of a power line carrier of the present invention. FIG. 2 is a detailed diagram of the drive pulse generation circuit. FIG. 3 is another drive pulse generating circuit, and FIG. 4 is a waveform diagram of each point in FIG. FIG. 5 is a block diagram of the entire system. (1) …… Drive pulse generation circuit (2) …… Waveform shaping circuit (3) …… Drive circuit (4) …… Primary parallel tuning circuit (5) …… Secondary series tuning circuit (6) …… Power line (7) …… Reception circuit (10) …… Drive pulse generation circuit (11) …… Schmitt trigger (12) …… NOR gate (13) …… NAND gate (100) …… Drive pulse generation circuit (101)… ... analog switch (102) .... received data latch circuit (103) .... Schmitt trigger (104) .... NAND gate (105) .... NAND gate (a) ~ (e) and (c 1) ~ (e 1) ...... Each point and its waveform diagram (A) …… Master station (B), (C) to (N) …… Slave station
Claims (1)
方式電力線搬送装置であって、入力データ信号を方形波
に整形する波形成型回路と、前記方形波を２相に分割微
分するドライブパルス発生回路と、該ドライブパルス発
生回路の出力パルスを電力増幅するドライブ回路と、該
ドライブ回路の出力信号を電力線に結合させる１次並列
同調回路と２次直列同調回路とを具備した電力線搬送装
置において、電力線の負荷又はノイズ環境の変化に応じ
て親局がポーリングアドレスと共に、パワーコントロー
ルデータを子局に送り、子局のドライブパルス発生回路
からの出力パルスのパルス幅を調整して、通信時のパワ
ーをコントロールできるようにしたことを特徴とする電
力線搬送装置1. A frequency modulation type power line carrier for transmitting data using a power line, wherein a waveform shaping circuit for shaping an input data signal into a square wave and drive pulse generation for dividing and differentiation of the square wave into two phases. A power line carrier comprising a circuit, a drive circuit for power amplifying an output pulse of the drive pulse generating circuit, a primary parallel tuning circuit for coupling an output signal of the drive circuit to a power line, and a secondary series tuning circuit, The master station sends power control data to the slave station along with the polling address according to changes in the power line load or noise environment, adjusts the pulse width of the output pulse from the slave station drive pulse generation circuit, and adjusts the power during communication. Power line carrier characterized by being able to control
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6273086A JPH07123240B2 (en) | 1986-03-19 | 1986-03-19 | Power line carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6273086A JPH07123240B2 (en) | 1986-03-19 | 1986-03-19 | Power line carrier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62219724A JPS62219724A (en) | 1987-09-28 |
| JPH07123240B2 true JPH07123240B2 (en) | 1995-12-25 |
Family
ID=13208776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6273086A Expired - Lifetime JPH07123240B2 (en) | 1986-03-19 | 1986-03-19 | Power line carrier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07123240B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63208328A (en) * | 1987-02-24 | 1988-08-29 | Mitsubishi Electric Corp | Transmitting and receiving circuit |
| JPH082037B2 (en) * | 1988-05-12 | 1996-01-10 | 大崎電気工業株式会社 | Distribution line transport method |
| JPH02162925A (en) * | 1988-12-16 | 1990-06-22 | Tohoku Electric Power Co Inc | Slave station equipment for distribution line carrier |
| JPH07112175B2 (en) * | 1990-12-26 | 1995-11-29 | 八木アンテナ株式会社 | Light diffusion communication system |
| EP1468503B1 (en) | 2002-01-24 | 2015-08-26 | Panasonic Corporation | Method of and system for power line carrier communications |
| KR100559913B1 (en) * | 2004-01-09 | 2006-03-13 | 이기원 | Communication device |
| DE102009031839B4 (en) * | 2009-07-03 | 2011-06-09 | Ingmar Kruse | Method for monitoring individual photovoltaic modules in an arrangement comprising a plurality of photovoltaic modules and a device for carrying out the aforementioned method |
-
1986
- 1986-03-19 JP JP6273086A patent/JPH07123240B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62219724A (en) | 1987-09-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |