JPS5672554A - Data transmission system - Google Patents
Data transmission systemInfo
- Publication number
- JPS5672554A JPS5672554A JP14767679A JP14767679A JPS5672554A JP S5672554 A JPS5672554 A JP S5672554A JP 14767679 A JP14767679 A JP 14767679A JP 14767679 A JP14767679 A JP 14767679A JP S5672554 A JPS5672554 A JP S5672554A
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- station
- supervisory
- central station
- report
- 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
-
- 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
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Small-Scale Networks (AREA)
- Selective Calling Equipment (AREA)
Abstract
PURPOSE:To make it possible to swiftly grasp the variation of the supervisory item by the central station when it has occurred in plural terminal stations, by sending out a time sharing report signal to the central station from each terminal station, in the centralized supervisory system having both the cyclic polling system and the status change starting system. CONSTITUTION:The terminal stations are called in order, the supervisory information of these terminal stations is replied to the central station by the reply signal b1-bn, and also the prescribed time lag t1 is provided between the call signal (a) for calling the terminal station from the central station, and the reply signals b1- bn executed by the terminal stations. And the terminal station whose supervisory information has been varied is made to report by the report signals b1-bn in said time lag, and the central station preferentially calls the terminal station which has sent out said report signals b1-bn, and the supervisory information of its terminal station is replied. In this centralized supervisory system, the time lag t1 starting from the send-out end time of each call signal (a) is assigned to each terminal station in advance so that it is not overlapped in time, and the central station is made to send out the report signals b1-bn in the respective assigned time zones to the terminal station whose supervisory information has been varied.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14767679A JPS5672554A (en) | 1979-11-16 | 1979-11-16 | Data transmission system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14767679A JPS5672554A (en) | 1979-11-16 | 1979-11-16 | Data transmission system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5672554A true JPS5672554A (en) | 1981-06-16 |
Family
ID=15435752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14767679A Pending JPS5672554A (en) | 1979-11-16 | 1979-11-16 | Data transmission system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5672554A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5980044A (en) * | 1982-10-30 | 1984-05-09 | Matsushita Electric Works Ltd | Remote monitoring system |
JPS6048638A (en) * | 1983-08-11 | 1985-03-16 | ウオング・ラボラトリ−ズ・インコ−ポレ−テツド | Polling method for searching service request |
JPS6053352A (en) * | 1983-09-02 | 1985-03-27 | Honda Motor Co Ltd | Multiplex communication equipment for mobile body |
JPS6053356A (en) * | 1983-09-02 | 1985-03-27 | Honda Motor Co Ltd | Multiplex communication equipment for mobile body |
JPS6059835A (en) * | 1983-09-13 | 1985-04-06 | Fuji Electric Co Ltd | Transmission control system |
JPS6079843A (en) * | 1983-10-06 | 1985-05-07 | Fuji Electric Co Ltd | Transmission control system |
JPH02215259A (en) * | 1989-02-16 | 1990-08-28 | Matsushita Electric Ind Co Ltd | Line omission system interphone device |
-
1979
- 1979-11-16 JP JP14767679A patent/JPS5672554A/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5980044A (en) * | 1982-10-30 | 1984-05-09 | Matsushita Electric Works Ltd | Remote monitoring system |
JPS6048638A (en) * | 1983-08-11 | 1985-03-16 | ウオング・ラボラトリ−ズ・インコ−ポレ−テツド | Polling method for searching service request |
JPS6053352A (en) * | 1983-09-02 | 1985-03-27 | Honda Motor Co Ltd | Multiplex communication equipment for mobile body |
JPS6053356A (en) * | 1983-09-02 | 1985-03-27 | Honda Motor Co Ltd | Multiplex communication equipment for mobile body |
JPS6059835A (en) * | 1983-09-13 | 1985-04-06 | Fuji Electric Co Ltd | Transmission control system |
JPH0326580B2 (en) * | 1983-09-13 | 1991-04-11 | Fuji Electric Co Ltd | |
JPS6079843A (en) * | 1983-10-06 | 1985-05-07 | Fuji Electric Co Ltd | Transmission control system |
JPH0325062B2 (en) * | 1983-10-06 | 1991-04-04 | Fuji Electric Co Ltd | |
JPH02215259A (en) * | 1989-02-16 | 1990-08-28 | Matsushita Electric Ind Co Ltd | Line omission system interphone device |
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