JPS57125550A - Data collecting system - Google Patents
Data collecting systemInfo
- Publication number
- JPS57125550A JPS57125550A JP1205781A JP1205781A JPS57125550A JP S57125550 A JPS57125550 A JP S57125550A JP 1205781 A JP1205781 A JP 1205781A JP 1205781 A JP1205781 A JP 1205781A JP S57125550 A JPS57125550 A JP S57125550A
- Authority
- JP
- Japan
- Prior art keywords
- data
- timer
- transmission
- given
- signal
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
Landscapes
- Small-Scale Networks (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Selective Calling Equipment (AREA)
Abstract
PURPOSE:To decrease the data collection time and to prevent crosstalk, by giving functions of carrier detection and address discrimination of preceding stations to slave devices. CONSTITUTION:When a simultaneous callout data from a transmission line enters a reception section 2 via a terminal 6, a timer start signal is outputted from the section 2 to a transmission start timer 4 to start the timer. When simultaneous callout data or transmission data from other slave devices are received, the data are given to a preceding station address detector 8 from the reception section 2 and a carrier detector 9 is activated. When the data are given to the detector 8, a discrimination signal of the address of a slave station before by one from the transmission order assigned to the station itself with the address discrimination is outputted, and when no carrier is present and a signal carrier interruption is give, a transmission start signal is given to a transmission section 1 with an AND circuit 10 and a timer cancell signal is given to the timer 4.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1205781A JPS57125550A (en) | 1981-01-29 | 1981-01-29 | Data collecting system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1205781A JPS57125550A (en) | 1981-01-29 | 1981-01-29 | Data collecting system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57125550A true JPS57125550A (en) | 1982-08-04 |
JPH0123017B2 JPH0123017B2 (en) | 1989-04-28 |
Family
ID=11794966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1205781A Granted JPS57125550A (en) | 1981-01-29 | 1981-01-29 | Data collecting system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57125550A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60130941A (en) * | 1983-12-20 | 1985-07-12 | Agency Of Ind Science & Technol | Network of computer |
JPS6235732A (en) * | 1985-08-08 | 1987-02-16 | Nec Corp | Satellite communication monitor system |
JPS62181056U (en) * | 1986-05-07 | 1987-11-17 | ||
JPH03151739A (en) * | 1989-11-09 | 1991-06-27 | Hitachi Ltd | Information transmission method and system |
JPH04145746A (en) * | 1990-10-08 | 1992-05-19 | Nec Corp | Satellite line access system for data packet |
JPH05328449A (en) * | 1992-05-20 | 1993-12-10 | Nec Corp | Automatic metering system utilizing catv line |
WO2005027374A1 (en) * | 2003-09-12 | 2005-03-24 | Matsushita Electric Industrial Co., Ltd. | Radio communication method and radio communication terminal accommodating apparatus |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS537352A (en) * | 1976-07-09 | 1978-01-23 | Mitsubishi Electric Corp | Data collection system in digital telemeter system |
-
1981
- 1981-01-29 JP JP1205781A patent/JPS57125550A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS537352A (en) * | 1976-07-09 | 1978-01-23 | Mitsubishi Electric Corp | Data collection system in digital telemeter system |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60130941A (en) * | 1983-12-20 | 1985-07-12 | Agency Of Ind Science & Technol | Network of computer |
JPS6235732A (en) * | 1985-08-08 | 1987-02-16 | Nec Corp | Satellite communication monitor system |
JPS62181056U (en) * | 1986-05-07 | 1987-11-17 | ||
JPH03151739A (en) * | 1989-11-09 | 1991-06-27 | Hitachi Ltd | Information transmission method and system |
JPH04145746A (en) * | 1990-10-08 | 1992-05-19 | Nec Corp | Satellite line access system for data packet |
JPH05328449A (en) * | 1992-05-20 | 1993-12-10 | Nec Corp | Automatic metering system utilizing catv line |
WO2005027374A1 (en) * | 2003-09-12 | 2005-03-24 | Matsushita Electric Industrial Co., Ltd. | Radio communication method and radio communication terminal accommodating apparatus |
US8515438B2 (en) | 2003-09-12 | 2013-08-20 | Panasonic Corporation | Radio communication method and radio communication terminal accommodating apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPH0123017B2 (en) | 1989-04-28 |
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