JPS558174A - Signal transmission system using power line - Google Patents

Signal transmission system using power line

Info

Publication number
JPS558174A
JPS558174A JP8166378A JP8166378A JPS558174A JP S558174 A JPS558174 A JP S558174A JP 8166378 A JP8166378 A JP 8166378A JP 8166378 A JP8166378 A JP 8166378A JP S558174 A JPS558174 A JP S558174A
Authority
JP
Japan
Prior art keywords
lines
transmission line
power transmission
line
ground
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
Application number
JP8166378A
Other languages
Japanese (ja)
Other versions
JPS6046900B2 (en
Inventor
Shigeo Obara
Sumio Kobane
Masanobu Yamamoto
Tetsuo Ueno
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Meisei Electric Co Ltd
Original Assignee
Meisei Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Meisei Electric Co Ltd filed Critical Meisei Electric Co Ltd
Priority to JP8166378A priority Critical patent/JPS6046900B2/en
Publication of JPS558174A publication Critical patent/JPS558174A/en
Publication of JPS6046900B2 publication Critical patent/JPS6046900B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • H04B3/56—Circuits for coupling, blocking, or by-passing of signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5404—Methods of transmitting or receiving signals via power distribution lines
    • H04B2203/5425—Methods of transmitting or receiving signals via power distribution lines improving S/N by matching impedance, noise reduction, gain control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5462—Systems for power line communications
    • H04B2203/5483—Systems for power line communications using coupling circuits

Abstract

PURPOSE:To improve the S/N by forming the signal transmission line between both lines of the power transmission line and the ground and then connecting between the signals lines of both the transmission and reception sides and the both lines of the power transmission line via the cpacity each. CONSTITUTION:For transmitter 3, capacitor Co and C6 are connected to the both lines of power transmission line 5; while capacitor C1 and C7 are connected to the both lines of line 5 for receiver 2 respectively. And fine adjusting capacitor C8 is connected between one piece of the power transmission line and the ground. Thus, the signal transmission line is formed between the both lines of the power transmission line and the ground. The value of capacitors C0, C1, C6 and C7 are set to inter-ground electromagnetic capacity C2 and C3 plus insulated resistance R1 and R2 so that the balancing conditions may be satisfied fro the bridge comprising the S side of transfromer T1, the P side of transformer T2 plus the both lines of line 5. As a result, the signals are transmitted to both lines of line 5 in the same pahse. Accordingly, no power transmission voltage nor inter-line noise emerges at the S and P sides of T1 and T2, improving the S/N greatly.
JP8166378A 1978-07-05 1978-07-05 Signal transmission method using power lines Expired JPS6046900B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8166378A JPS6046900B2 (en) 1978-07-05 1978-07-05 Signal transmission method using power lines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8166378A JPS6046900B2 (en) 1978-07-05 1978-07-05 Signal transmission method using power lines

Publications (2)

Publication Number Publication Date
JPS558174A true JPS558174A (en) 1980-01-21
JPS6046900B2 JPS6046900B2 (en) 1985-10-18

Family

ID=13752560

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8166378A Expired JPS6046900B2 (en) 1978-07-05 1978-07-05 Signal transmission method using power lines

Country Status (1)

Country Link
JP (1) JPS6046900B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59229935A (en) * 1983-05-31 1984-12-24 Meisei Electric Co Ltd Signal transmission system utilizing low voltage distribution line
JPS6169222A (en) * 1984-09-13 1986-04-09 Tokyo Electric Power Co Inc:The Carrier current communication equipment using distribution line

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59229935A (en) * 1983-05-31 1984-12-24 Meisei Electric Co Ltd Signal transmission system utilizing low voltage distribution line
JPS6169222A (en) * 1984-09-13 1986-04-09 Tokyo Electric Power Co Inc:The Carrier current communication equipment using distribution line

Also Published As

Publication number Publication date
JPS6046900B2 (en) 1985-10-18

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