JPS54156145A - Indoor power line carrier control system - Google Patents
Indoor power line carrier control systemInfo
- Publication number
- JPS54156145A JPS54156145A JP6598378A JP6598378A JPS54156145A JP S54156145 A JPS54156145 A JP S54156145A JP 6598378 A JP6598378 A JP 6598378A JP 6598378 A JP6598378 A JP 6598378A JP S54156145 A JPS54156145 A JP S54156145A
- Authority
- JP
- Japan
- Prior art keywords
- zero cross
- carrier control
- cycle
- cross point
- power 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
Landscapes
- Dc Digital Transmission (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Selective Calling Equipment (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Time-Division Multiplex Systems (AREA)
Abstract
PURPOSE: To prevent malfunctioning by correcting the time lag of the zero cross point detection through the software of a microprocessor with detection of the zero cross point half in cycle of the power frequency by a switching element such as transistor.
CONSTITUTION: To an indoor power line l following a block filter 3, connected are transmitters 41, 42 ... for generating a carrier control signal to control load such lighting apparatus and information device and receivers 61, 62 ... for controlling various loads 51, 52 ... upon reception of the carrier control signal of the transmitters. Zero cross points half in cycle of the power source frequency are detected by a switching element and the detection signals are turned on or off every half cycle. The rise or breaking time is discriminates by arithmetic processing of a microprocessor to the zero cross point and determine the abnormalty of the waveform of the power source.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6598378A JPS54156145A (en) | 1978-05-31 | 1978-05-31 | Indoor power line carrier control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6598378A JPS54156145A (en) | 1978-05-31 | 1978-05-31 | Indoor power line carrier control system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54156145A true JPS54156145A (en) | 1979-12-08 |
Family
ID=13302741
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6598378A Pending JPS54156145A (en) | 1978-05-31 | 1978-05-31 | Indoor power line carrier control system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54156145A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5843637A (en) * | 1981-09-10 | 1983-03-14 | Nippon Telegr & Teleph Corp <Ntt> | Remote apparatus control system which has utilized telephone terminal equipment |
JPS58198129A (en) * | 1982-05-12 | 1983-11-18 | 株式会社日立製作所 | Carrier generating system for indoor power line carrier system |
JPS59230353A (en) * | 1983-06-13 | 1984-12-24 | Matsushita Electric Ind Co Ltd | Data transmitter between controllers |
JPS6010822A (en) * | 1983-06-29 | 1985-01-21 | Matsushita Electric Ind Co Ltd | Transmitter-receiver |
JPS6014529A (en) * | 1983-07-05 | 1985-01-25 | Matsushita Electric Ind Co Ltd | Transmission and reception system |
JPS60165127A (en) * | 1984-02-08 | 1985-08-28 | Toshiba Heating Appliances Co | Data carrier system in power line carrier control system |
JPS63276998A (en) * | 1987-03-19 | 1988-11-15 | Sanyo Electric Co Ltd | Electrical equipment |
JPH0518395A (en) * | 1991-07-12 | 1993-01-26 | Mitsubishi Electric Corp | Blower control circuit for air conditioner |
-
1978
- 1978-05-31 JP JP6598378A patent/JPS54156145A/en active Pending
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5843637A (en) * | 1981-09-10 | 1983-03-14 | Nippon Telegr & Teleph Corp <Ntt> | Remote apparatus control system which has utilized telephone terminal equipment |
JPS58198129A (en) * | 1982-05-12 | 1983-11-18 | 株式会社日立製作所 | Carrier generating system for indoor power line carrier system |
JPS59230353A (en) * | 1983-06-13 | 1984-12-24 | Matsushita Electric Ind Co Ltd | Data transmitter between controllers |
JPS6010822A (en) * | 1983-06-29 | 1985-01-21 | Matsushita Electric Ind Co Ltd | Transmitter-receiver |
JPH0449296B2 (en) * | 1983-06-29 | 1992-08-11 | Matsushita Electric Ind Co Ltd | |
JPS6014529A (en) * | 1983-07-05 | 1985-01-25 | Matsushita Electric Ind Co Ltd | Transmission and reception system |
JPH0447497B2 (en) * | 1983-07-05 | 1992-08-04 | Matsushita Electric Ind Co Ltd | |
JPS60165127A (en) * | 1984-02-08 | 1985-08-28 | Toshiba Heating Appliances Co | Data carrier system in power line carrier control system |
JPS63276998A (en) * | 1987-03-19 | 1988-11-15 | Sanyo Electric Co Ltd | Electrical equipment |
JPH0518395A (en) * | 1991-07-12 | 1993-01-26 | Mitsubishi Electric Corp | Blower control circuit for air conditioner |
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