JPS5672554A - Data transmission system - Google Patents

Data transmission system

Info

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
Application number
JP14767679A
Other languages
Japanese (ja)
Inventor
Yasuo Takahashi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP14767679A priority Critical patent/JPS5672554A/en
Publication of JPS5672554A publication Critical patent/JPS5672554A/en
Pending legal-status Critical Current

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.
JP14767679A 1979-11-16 1979-11-16 Data transmission system Pending JPS5672554A (en)

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)

* Cited by examiner, † Cited by third party
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
JPS6053356A (en) * 1983-09-02 1985-03-27 Honda Motor Co Ltd Multiplex communication equipment for mobile body
JPS6053352A (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

Cited By (9)

* Cited by examiner, † Cited by third party
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
JPS6053356A (en) * 1983-09-02 1985-03-27 Honda Motor Co Ltd Multiplex communication equipment for mobile body
JPS6053352A (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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