JPS54141502A - Data transmission system - Google Patents

Data transmission system

Info

Publication number
JPS54141502A
JPS54141502A JP4953878A JP4953878A JPS54141502A JP S54141502 A JPS54141502 A JP S54141502A JP 4953878 A JP4953878 A JP 4953878A JP 4953878 A JP4953878 A JP 4953878A JP S54141502 A JPS54141502 A JP S54141502A
Authority
JP
Japan
Prior art keywords
transmission
output
data
circuit
data transmission
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
JP4953878A
Other languages
Japanese (ja)
Inventor
Tetsuo Yamaguchi
Mitsunori Kono
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP4953878A priority Critical patent/JPS54141502A/en
Publication of JPS54141502A publication Critical patent/JPS54141502A/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)
  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE:To increase the efficiency of data collection at master station, by limiting the data transmission time from the slave station to sufficiently required time, through the start for data transmission when the transmission output is detected and the output is at constant level. CONSTITUTION:When start signal is given to the transmission circuit, the transmission output starts rising, and this output is normally detected at the output detection circuit 6. When the output is at constant level, a signal is given to the transmission control circuit 5. With this signal, the circuit 5 gives start signal to each circuit related to the data and delivers clock also, to immediately transmit the data to the transmission circuit 1. Thus, the data transmission from the slave station is limited to sufficiently required time to increase the efficiency of the data collection at the master station.
JP4953878A 1978-04-25 1978-04-25 Data transmission system Pending JPS54141502A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4953878A JPS54141502A (en) 1978-04-25 1978-04-25 Data transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4953878A JPS54141502A (en) 1978-04-25 1978-04-25 Data transmission system

Publications (1)

Publication Number Publication Date
JPS54141502A true JPS54141502A (en) 1979-11-02

Family

ID=12833948

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4953878A Pending JPS54141502A (en) 1978-04-25 1978-04-25 Data transmission system

Country Status (1)

Country Link
JP (1) JPS54141502A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5810944A (en) * 1981-07-13 1983-01-21 Fujitsu Ltd Telex communication system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5810944A (en) * 1981-07-13 1983-01-21 Fujitsu Ltd Telex communication system

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