JPS5769991A - Monitor control system - Google Patents

Monitor control system

Info

Publication number
JPS5769991A
JPS5769991A JP14663880A JP14663880A JPS5769991A JP S5769991 A JPS5769991 A JP S5769991A JP 14663880 A JP14663880 A JP 14663880A JP 14663880 A JP14663880 A JP 14663880A JP S5769991 A JPS5769991 A JP S5769991A
Authority
JP
Japan
Prior art keywords
line
control
turns
center
monitor
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
Application number
JP14663880A
Other languages
Japanese (ja)
Other versions
JPS6342996B2 (en
Inventor
Kazuhito Saito
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP14663880A priority Critical patent/JPS5769991A/en
Priority to DE19813141624 priority patent/DE3141624A1/en
Publication of JPS5769991A publication Critical patent/JPS5769991A/en
Publication of JPS6342996B2 publication Critical patent/JPS6342996B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B19/00—Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:To enable to control selectively objective devices with multi-item monitoring, by controlling the selective object through the logical sum among control/monitor line outputs and using three-cored cables, at the monitor control from the center to the terminal device side such as overall accident preventing systems. CONSTITUTION:A center sideIand a terminal device side II are coupled with three transmission lines consisting of control line l1, monitor line l2, and ground line l3, and a transistor (TR) 1 is conductive at the center sideIand power supply voltage is applied to the terminal side II via the line l1. At monitor, the Tr1 turns off, a Tr2 turns on, and clock pulses with a prescribed amplitude are supplied through the line l2, this pulse amplitude is changed according to the state of monitoring object of the terminal device side II and monitored through an amplifier AMP at the center sideI. At the selection of control objectives, the Tr2 turns off and the Tr1 turns on, and clock pulses for control objective selection are transmitted through the line l1 to select the objective, and the Tr2 turns on and the selected control objective by the logical sum of the signals on the lines l1 and l2 is driven.
JP14663880A 1980-10-20 1980-10-20 Monitor control system Granted JPS5769991A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP14663880A JPS5769991A (en) 1980-10-20 1980-10-20 Monitor control system
DE19813141624 DE3141624A1 (en) 1980-10-20 1981-10-20 Central alarm system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14663880A JPS5769991A (en) 1980-10-20 1980-10-20 Monitor control system

Publications (2)

Publication Number Publication Date
JPS5769991A true JPS5769991A (en) 1982-04-30
JPS6342996B2 JPS6342996B2 (en) 1988-08-26

Family

ID=15412244

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14663880A Granted JPS5769991A (en) 1980-10-20 1980-10-20 Monitor control system

Country Status (1)

Country Link
JP (1) JPS5769991A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007518911A (en) * 2003-09-26 2007-07-12 松下電器産業株式会社 Compressor
US10648471B2 (en) 2016-04-26 2020-05-12 Lg Electronics Inc. Scroll compressor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007518911A (en) * 2003-09-26 2007-07-12 松下電器産業株式会社 Compressor
US10648471B2 (en) 2016-04-26 2020-05-12 Lg Electronics Inc. Scroll compressor

Also Published As

Publication number Publication date
JPS6342996B2 (en) 1988-08-26

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