FR2416190A1 - Transport trolley control system - has transmitter and a receiver on each trolley with signal amplitude detector including three variable gain amplifier stages - Google Patents

Transport trolley control system - has transmitter and a receiver on each trolley with signal amplitude detector including three variable gain amplifier stages

Info

Publication number
FR2416190A1
FR2416190A1 FR7802609A FR7802609A FR2416190A1 FR 2416190 A1 FR2416190 A1 FR 2416190A1 FR 7802609 A FR7802609 A FR 7802609A FR 7802609 A FR7802609 A FR 7802609A FR 2416190 A1 FR2416190 A1 FR 2416190A1
Authority
FR
France
Prior art keywords
transmitter
receiver
trolley
control system
variable gain
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
FR7802609A
Other languages
French (fr)
Other versions
FR2416190B1 (en
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.)
C Delachaux SA
Original Assignee
C Delachaux SA
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 C Delachaux SA filed Critical C Delachaux SA
Priority to FR7802609A priority Critical patent/FR2416190A1/en
Priority to IT67088/79A priority patent/IT1118298B/en
Publication of FR2416190A1 publication Critical patent/FR2416190A1/en
Application granted granted Critical
Publication of FR2416190B1 publication Critical patent/FR2416190B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C15/00—Safety gear
    • B66C15/04—Safety gear for preventing collisions, e.g. between cranes or trolleys operating on the same track
    • B66C15/045—Safety gear for preventing collisions, e.g. between cranes or trolleys operating on the same track electrical

Abstract

The control system for each trolley has a transmitter and receiver. The transmitter has a constant frequency oscillator (10) such as a quartz oscillator operating at a frequency of 100Hz. The signal is amplified in the power amplifier (12) and transmitted through the aerial (14), consisting of a coil (16) and a condenser (18). The receiver has an aerial connected to the primary side of a transformer and hence to an amplifier, a mixer and a band filter. This is followed by a comparator and decoder.
FR7802609A 1978-01-31 1978-01-31 Transport trolley control system - has transmitter and a receiver on each trolley with signal amplitude detector including three variable gain amplifier stages Granted FR2416190A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7802609A FR2416190A1 (en) 1978-01-31 1978-01-31 Transport trolley control system - has transmitter and a receiver on each trolley with signal amplitude detector including three variable gain amplifier stages
IT67088/79A IT1118298B (en) 1978-01-31 1979-01-16 MEASUREMENT AND CONTROL DEVICE TO INCREASE THE SAFETY OF BRIDGE CRANES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7802609A FR2416190A1 (en) 1978-01-31 1978-01-31 Transport trolley control system - has transmitter and a receiver on each trolley with signal amplitude detector including three variable gain amplifier stages

Publications (2)

Publication Number Publication Date
FR2416190A1 true FR2416190A1 (en) 1979-08-31
FR2416190B1 FR2416190B1 (en) 1980-07-18

Family

ID=9203999

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7802609A Granted FR2416190A1 (en) 1978-01-31 1978-01-31 Transport trolley control system - has transmitter and a receiver on each trolley with signal amplitude detector including three variable gain amplifier stages

Country Status (2)

Country Link
FR (1) FR2416190A1 (en)
IT (1) IT1118298B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0158593A1 (en) * 1984-04-09 1985-10-16 GET Gesellschaft für Elektronik-Technologie mbH Electronic surveillance and warning device for a manipulator
FR2597612A1 (en) * 1986-04-18 1987-10-23 Josse Etienne DEVICE FOR DETECTING THE DISTANCE SEPARATING FROM TWO MOBILE POINTS
EP0382231A1 (en) * 1989-02-09 1990-08-16 Man Ghh Logistics Gmbh Method and arrangement for the limitation of the displacement area of a crane

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
EXBK/62 *
EXBK/77 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0158593A1 (en) * 1984-04-09 1985-10-16 GET Gesellschaft für Elektronik-Technologie mbH Electronic surveillance and warning device for a manipulator
FR2597612A1 (en) * 1986-04-18 1987-10-23 Josse Etienne DEVICE FOR DETECTING THE DISTANCE SEPARATING FROM TWO MOBILE POINTS
EP0243242A1 (en) * 1986-04-18 1987-10-28 Etienne Josse Device for measuring the range between two moving points
EP0382231A1 (en) * 1989-02-09 1990-08-16 Man Ghh Logistics Gmbh Method and arrangement for the limitation of the displacement area of a crane

Also Published As

Publication number Publication date
FR2416190B1 (en) 1980-07-18
IT1118298B (en) 1986-02-24
IT7967088A0 (en) 1979-01-16

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Legal Events

Date Code Title Description
ST Notification of lapse