GB932169A - Improvements in or relating to electric signal transmission systems - Google Patents

Improvements in or relating to electric signal transmission systems

Info

Publication number
GB932169A
GB932169A GB4349260A GB4349260A GB932169A GB 932169 A GB932169 A GB 932169A GB 4349260 A GB4349260 A GB 4349260A GB 4349260 A GB4349260 A GB 4349260A GB 932169 A GB932169 A GB 932169A
Authority
GB
United Kingdom
Prior art keywords
transformer
pulse
pulses
units
winder
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.)
Expired
Application number
GB4349260A
Inventor
Erich Siegfried Friedlander
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB4349260A priority Critical patent/GB932169A/en
Publication of GB932169A publication Critical patent/GB932169A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/3415—Control system configuration and the data transmission or communication within the control system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/3415—Control system configuration and the data transmission or communication within the control system
    • B66B1/3446—Data transmission or communication within the control system
    • 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
    • H04Q9/04—Arrangements for synchronous operation

Landscapes

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

Abstract

932,169. Electric selective signalling. GENERAL ELECTRIC CO. Ltd. Nov. 27, 1961 [Dec. 16, 1960],.No. 43492/60. Class 40 (1). The invention provides a system for signalling between the winder house and the cage in a mine lift. At the transmitter, a recurring sequence of 7 pulses is obtained from a phasediscriminator transformer 6 having saturable cores, which is fed from a 3-phase supply. By virtue of diodes 10 the sequence appears as a 14-pulse cycle, alternate pulses having opposite polarity. Closure of certain of switches 11 causes a train of pulses having +, -, or zero polarity to be passed to the receiver. Units 13 reverse the sign of pulses fed to alternate coincidence gates 12 which are also supplied by a 14-pulse recurrent pulse train, this being derived by a transformer 14 similar to transformer 6 and supplied from the same source. Certain of units 12 will pulse, in correspondence with the closed switches 11. The outputs of units 12 are fed, via suitable delays, to a number of coincidence gates. According to the particular switches 11 which were closed one of the coincidence gates will give a control signal. In a second embodiment, Fig. 2 (not shown), communication in either direction is obtained, the pulse signals modulating an ultrasonic carrier-wave. Each transformer has an additional winding which serves to block the receiving units at the winder house or at the cage while data is being transmitted to the cage or to the winder house, respectively.
GB4349260A 1960-12-16 1960-12-16 Improvements in or relating to electric signal transmission systems Expired GB932169A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4349260A GB932169A (en) 1960-12-16 1960-12-16 Improvements in or relating to electric signal transmission systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4349260A GB932169A (en) 1960-12-16 1960-12-16 Improvements in or relating to electric signal transmission systems

Publications (1)

Publication Number Publication Date
GB932169A true GB932169A (en) 1963-07-24

Family

ID=10428980

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4349260A Expired GB932169A (en) 1960-12-16 1960-12-16 Improvements in or relating to electric signal transmission systems

Country Status (1)

Country Link
GB (1) GB932169A (en)

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