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JPS5799059A - Remote monitoring device - Google Patents

Remote monitoring device

Info

Publication number
JPS5799059A
JPS5799059A JP17450780A JP17450780A JPS5799059A JP S5799059 A JPS5799059 A JP S5799059A JP 17450780 A JP17450780 A JP 17450780A JP 17450780 A JP17450780 A JP 17450780A JP S5799059 A JPS5799059 A JP S5799059A
Authority
JP
Japan
Prior art keywords
monitored
signal
stations
station
transmission 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
Application number
JP17450780A
Other languages
Japanese (ja)
Inventor
Katsunori Yamakawa
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.)
Hitachi Ltd
Hitachi Industry and Control Solutions Co Ltd
Original Assignee
Hitachi Engineering Co Ltd
Hitachi 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 Hitachi Engineering Co Ltd, Hitachi Ltd filed Critical Hitachi Engineering Co Ltd
Priority to JP17450780A priority Critical patent/JPS5799059A/en
Publication of JPS5799059A publication Critical patent/JPS5799059A/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)
  • Time-Division Multiplex Systems (AREA)
  • Small-Scale Networks (AREA)
  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:To monitor a number of monitored stations with a simple constitution, by providing a switching means switching each monitored station in time division with a specific station of monitored stations, collecting the monitored data with this specific station and transmitting it to a monitor station via a transmission line. CONSTITUTION:In stations 3, 4, 5 to be monitored, an input circuit 13 inputting measuring data D1-Dn, parallel serial converter 12 and signal transmitter 11 making FS modulation of the serial data from the circuit 12 and transmitting it, are provided, and the specific station 3 to be monitored is provided with a transmission switching circuit 15. The FS data signal from the stations 4, 5 transmitted via a transmission line 21 with a switching signal 16 from a transmission switching control circuit 14 is selected in time division and transmitted on a transmission line 20. The time division FS signal on the transmission line 20 is received at a receiver 7 of the monitor station 1, converted to a parallel signal at a serial parallel converter 8 and distributed to a display measuring output circuit 9.
JP17450780A 1980-12-12 1980-12-12 Remote monitoring device Pending JPS5799059A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17450780A JPS5799059A (en) 1980-12-12 1980-12-12 Remote monitoring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17450780A JPS5799059A (en) 1980-12-12 1980-12-12 Remote monitoring device

Publications (1)

Publication Number Publication Date
JPS5799059A true JPS5799059A (en) 1982-06-19

Family

ID=15979706

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17450780A Pending JPS5799059A (en) 1980-12-12 1980-12-12 Remote monitoring device

Country Status (1)

Country Link
JP (1) JPS5799059A (en)

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