JPS57112197A - Remote control system for terminal slave device - Google Patents

Remote control system for terminal slave device

Info

Publication number
JPS57112197A
JPS57112197A JP18537980A JP18537980A JPS57112197A JP S57112197 A JPS57112197 A JP S57112197A JP 18537980 A JP18537980 A JP 18537980A JP 18537980 A JP18537980 A JP 18537980A JP S57112197 A JPS57112197 A JP S57112197A
Authority
JP
Japan
Prior art keywords
slave device
pulse width
signal
master controller
slave
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
JP18537980A
Other languages
Japanese (ja)
Other versions
JPS6322517B2 (en
Inventor
Hiroyuki Takekura
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.)
Victor Company of Japan Ltd
Nippon Victor KK
Original Assignee
Victor Company of Japan Ltd
Nippon Victor KK
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 Victor Company of Japan Ltd, Nippon Victor KK filed Critical Victor Company of Japan Ltd
Priority to JP18537980A priority Critical patent/JPS57112197A/en
Publication of JPS57112197A publication Critical patent/JPS57112197A/en
Publication of JPS6322517B2 publication Critical patent/JPS6322517B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q9/00Arrangements 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
    • H04Q9/14Calling by using pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:To enable the selection of a slave device with a simple constitution, by connecting a plurality of slave devices with a master controller is series subtracting a specified pulse width signal transmitted from the master controller with a reference pulse width signal of the slave devices at each slave device, and transmitting only the remainting pulse width signal to a succeedig slave device. CONSTITUTION:When a master controller 10 selects the m-th slave device 20m, the said master controller 10 transmits a pulse signal (a) having pulse width (mt) (where; (m) is number of slave devices and (t) is reference pulse width) on a common transmission line 3. On the other hand, the 1st slave device 20a receives a transmitted pulse signal (a) and controls the switching of an AND gate 25 with the reference pulse width (t) determined with a one shot multivibrator 22, then a pulse width signal c passing through this slave device 2a becomes (mt-t). Thus, no signal is generated at an output (h) of the slave device 2a. Thereafter, the pulse width signal is sequentially reduced by the width (t) and a signal of the pulse width (t) is incoming to a slave device (m). Thus, an output K of the AND gate 25 comes to ''0'' and an AND gate 26 is opened, allowing to obtain an output P as ''1'' and to select the slave device (m) only.
JP18537980A 1980-12-29 1980-12-29 Remote control system for terminal slave device Granted JPS57112197A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18537980A JPS57112197A (en) 1980-12-29 1980-12-29 Remote control system for terminal slave device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18537980A JPS57112197A (en) 1980-12-29 1980-12-29 Remote control system for terminal slave device

Publications (2)

Publication Number Publication Date
JPS57112197A true JPS57112197A (en) 1982-07-13
JPS6322517B2 JPS6322517B2 (en) 1988-05-12

Family

ID=16169767

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18537980A Granted JPS57112197A (en) 1980-12-29 1980-12-29 Remote control system for terminal slave device

Country Status (1)

Country Link
JP (1) JPS57112197A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002071799A2 (en) * 2001-03-07 2002-09-12 Lab. Gruppen Ab Andersson & Bävholm A communications system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002071799A2 (en) * 2001-03-07 2002-09-12 Lab. Gruppen Ab Andersson & Bävholm A communications system
WO2002071799A3 (en) * 2001-03-07 2003-01-09 Lab Gruppen Ab A communications system

Also Published As

Publication number Publication date
JPS6322517B2 (en) 1988-05-12

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